Knowledge Base/Glossary

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10 Series Maintenance Features

Maintenance Features

Gorman-Rupp 10 Series self priming pumps have been designed to be easy and cost effective to service and maintain. The following features make life easier for operators and very cost effective for asset owners:-

Less Blockages

Because  impellers will handle solids, 10 Series pumps will choke less than most other wastewater/effluent pumps. This minimises downtime, increasing productivity.

Easy Blockage Removal

All pumps will eventually choke on something. But unlike submersible pumps that require cranes, safety barriers and several operators, 10 Series pumps have a large removable cover-plate, allowing access to pump internals in minutes, by just one operator, making blockage removal a quick and easy task.

Easy and Simple Wear Plate Replacement

Wear plates on a Gorman-Rupp 10 Series self priming pumps can be replaced in just a few minutes. Operators just remove the pump inspection cover, and replace the wear plate which is bolted to it via 4 studs. Compare this to some centrifugal and submersible pumps, having wear rings that often require heating the casing ring and/or cooling the wear ring, and often requiring the chiselling off of the old one.

Dosing Accurate Metering

Accurate Metering

With flow capabilities right down to 0.2 litres per hour, Rotho pumps, being positively driven by electric gear-motors, are ideal for chemical dosing/metering.

The most common environmental applications are for the pumping of Sodium Hypochlorite, Sodium Bisulphate, Ferric Chloride and some polymers, as well as lime slurry and carbon slurry.

Dosing Applications

Applications

Rotho pumps can handle highly viscous and/or highly abrasive and/or shear-sensitive liquids, they are ideal for a wide range of dosing or metering applications.

Hard to transfer fluids like ceramic pastes, slurries etc are easily handled by Ragazzini Rotho pumps. Whether transferring at 180m3/hr or 0.2 litres per hour, there is a Rotho to do the job.

Pressures to 15 BAR assist is applications with long or small diameter discharge lines or whose viscosity pushes friction losses high.

Correct hose selection and pump speed are paramount whether transferring, dosing or metering. So Ragazzini’s 60+ years experience and wide range of hose selection put us in the right position to select exactly the right pump for each and every application.

Easy Access

Easy Access

Because Gorman-Rupp self-priming pumps are located at ground level, high and dry above the liquid level, they are easy to access for monitoring, service and repair.

Whereas submersible pumps can only be accessed by opening wet well lids (exposing operators to “working at heights” and “working over water”) and winching or craning pumps to the surface (exposing operators to “working with swinging weights”), operators can access Gorman-Rupp self primers at ground level.

End suction pumps will often need a “dry-well” which is accessed by going downstairs or a ladder. They need isolation valves on the suction. This makes them more difficult to access than Gorman-Rupp self primers

Easy Service (T- Series)

Easy Access

Because Gorman-Rupp self priming pumps are located at ground level, high and dry above the liquid level, they are easy to access for monitoring, service and repair.

Whereas submersible pumps can only be accessed by opening wet well lids [exposing operators to “working at heights” and “working over water”] and winching or craning pumps to the surface [exposing operators to “working with swinging weights”], operators can access Gorman-Rupp self primers at ground level.

End suction pumps will often need a “dry well” which is accessed by going down stairs or a ladder. They need isolation valves on the suction. This makes them more difficult to access than Gorman-Rupp self primers.

Easy Service (U- Series)

Easy Access

Because Gorman-Rupp self priming pumps are located at ground level, high and dry above the liquid level, they are easy to access for monitoring, service and repair.

Whereas submersible pumps can only be accessed by opening wet well lids [exposing operators to “working at heights” and “working over water”] and winching or craning pumps to the surface [exposing operators to “working with swinging weights”], operators can access Gorman-Rupp self primers at ground level.

End suction pumps will often need a “dry well” which is accessed by going down stairs or a ladder. They need isolation valves on the suction. This makes them more difficult to access than Gorman-Rupp self primers..

Edur Solids Sizes

Edur  Torque- Flow Solids Sizes

The Edur Torque-Flow (FUB) range will handle the following size solids:

FUB 300 = Max. 30mm

FUB 400 = Max. 40mm

FUB 600 = Max. 50mm

FUB 700 = Max. 80mm

FUB 800 = Max. 50mm

Enclosed Pipeline

Enclosed Pipeline

Because the JS Lamella pump uses an enclosed pipeline system, the product is much less likely to be contaminated by insects, dust or water [rain]. This cannot be guaranteed when using screw conveyers or manual transfer systems like fork lift and bins.

Eradicator

Eradicator Solids Management System

Gorman-Rupp Super T Series self priming centrifugal pumps are capable of passing 76mm spherical solids [in 4” size and up] through all internal passages withing the pump (not just the impeller). The 3” pump will handle a 63mm solid.

Recent advances have included a self cleaning wear plate to help minimise blockages by stringy materials such as rags.  But because of the changes in sewage make-up [the introduction of the “wet wipe” for example], and water saving measures being used by industry and municipalities, something else needed to be done.

To tackle these growing problems, Gorman-Rupp has released the “Eradicator  – Solids Management System”. The Eradicator™ system features an aggressive self-cleaning wear-plate incorporating a number of notches and grooves, as well as a patent pending lacerating tooth that helps break up stringy materials, scrape them off the impeller vanes and pass them through the pump – all without impacting performance or interrupting service. A special cover plate with the system includes a patented lightweight inspection cover that can easily be removed if necessary to inspect pump internals.

System benefits include improved operational efficiency, increased uptime, reduced maintenance costs, lower life cycle costs and easier access to the impeller. Operators will also find that the lighter cover-plate is easier and safer to work with.

Eradicator System Benefits

System Benefits

Easier access to the impeller, increased uptime, improved operational efficiency, reduced maintenance costs and lower life-cycle costs are major benefits of the Eradicator system.

The Eradicator™ system features an aggressive self cleaning wearplate, incorporating a number of notches and grooves as well as a patented lacerating tooth that helps break up stringy materials and pass them through the pump without impacting on performance or interrupting service.

No longer does the entire cover assembly have to be removed to gain access to the impeller, as the special cover-plate of the Eradicator™ includes a patented lightweight inspection cover that can be easily removed if it is necessary to inspect pump internals.

Eradicator™ pumps do not need expensive chopper blades (that require periodic replacement) to handle stringy solids. Pumps can also be supplied with hardened internals for abrasive applications.

gorman-rupp eradicator cover plate

Extra Heavy Duty Ramparts

Ramparts P and iPC Series of single acting air driven diaphragm pumps are built tough. Here’s what
makes them the toughest sludge or slurry pumping choice:

  • Extra thick cast iron casings (up to 32mm thick – depending on pump model)
  • Separately constructed cast iron ball check valves (not just part of the discharge piping)
  • Bigger, thicker, heavier diaphragms.
  • Replaceable ball seats

G Extreme Duty G Series Pumps

Extreme Duty G Series Pumps 

Gorman-Rupp Extreme Duty G Series Pumps are the most rugged, wear resistant gear pumps in the world. Designed to survive the severe challenge of liquids containing abrasives, the Gorman-Rupp GHA Extreme Duty pumps combine proven gear pump technology with state-of-the-art wear-resistant features, making them the world’s toughest, longest-lasting gear pumps. Duty parameters are as follows:

Port Sizes 1” [25mm] through to 4” [100mm]
Maximum Capacity [Flow] 1230 litres per minute
Maximum Pressure 13.8 bar
Maximum Viscosity 54,000 cSt
Temperature Range -51oC to 260oC
Casing Materials Cast Iron, with heat treating to critical wear areas
Bushing materials Silicon Carbide, Tungsten Carbide and High Temp SiC
Number of Seal Options 7

G Heavy Duty Pumps

Heavy Duty Pumps

Gorman-Rupp Heavy Duty G Series Pumps are designed for the most demanding clean liquid applications, combining high performance materials and innovative design to outperform all other pumps of their type. They are the most capable and versatile gear pump in the industry. Duty parameters are as follows:-

GHS Cast Iron Pumps

Port Sizes 1” [25mm] through to 6” [150mm]
Maximum Capacity [Flow] 2200 litres per minute
Maximum Pressure 20.7 bar
Maximum Viscosity 440,000 cSt
Temperature Range -51oC to 343oC
Casing Materials Cast Iron
Bushing materials Bronze, CG, SiC, High Temp CG, High Temp SiC
Number of Seal Options 26

 

GHS Cast Steel Pumps

Port Sizes 1” [25mm] through to 4” [100mm]
Maximum Capacity [Flow] 1100 litres per minute
Maximum Pressure 20.7 bar
Maximum Viscosity 440,000 cSt
Temperature Range -29oC to 343oC
Casing Materials Cast Steel
Bushing materials Bronze, CG, SiC, High Temp CG, High Temp SiC
Number of Seal Options 25

 

GHS Stainless Steel Pumps

Port Sizes 1” [25mm] through to 3” [75mm]
Maximum Capacity [Flow] 400 litres per minute
Maximum Pressure 13.8 bar
Maximum Viscosity 54,000 cSt
Temperature Range -34oC to 177oC
Casing Materials 316 Stainless Steel
Bushing materials CG, SiC, High Temp CG, High Temp SiC, Tungsten
Number of Seal Options 17

G Medium Duty G Series Pumps

Medium Duty G Series Pumps

Gorman-Rupp Medium Duty G Series Pumps are designed for general intermittent duties. Duty parameters are as follows:

Port Sizes 1” [25mm] through to 6” [150mm]
Maximum Capacity [Flow] 2200 litres per minute
Maximum Pressure 10.3 bar
Maximum Viscosity 54,000 cSt
Temperature Range -40oC to 232oC
Casing Materials Cast Iron
Bushing materials Bronze, Carbon Graphite and Silicon Carbide
Number of Seal Options 7

G Series bushing options

G Series Bushing Options

G Series pumps offer the widest range of bushing options in the industry. These options include:-

Bushing Material Viscosity Limits [cSt] Temperature Limits oC Suitable for Abrasive Service Suitable for Corrosive Service
Bronze 108 to 21,000 232 No No
Carbon Graphite 0.1 to Pump Max 205 No Yes
High Temp Carbon Graphite 0.1 to Pump Max 360 No Yes
Silicon Carbide 0.1 to Pump Max 205 Yes Yes
High Temperature Silicon Carbide 0.1 to Pump Max 360 Yes Yes
Tungsten Carbide 22 to 22,000 150 Yes Yes

G Series Housing Ports

G Series Housing Ports 

All Gorman-Rupp G Series rotary gear pumps are available in a variety of port sizes,
orientation and flange type. Each hydraulic size has up to 3 different port sizes to
enable the perfect matching to pipe sizes. Ports are also available as 90o or 180o,
which can be rotated in 45o increments.

The various port sizes can be supplied with tapped ports, 125# ANSI Flanged,
250# ANSI Flanged, or 25 bar DIN Flanged.

G Series Housing Ports a

G Series Housing Ports 
All Gorman-Rupp G Series rotary gear pumps are available in a variety of port sizes,
orientation and flange type. Each hydraulic size has up to 3 different port sizes to
enable the perfect matching to pipe sizes. Ports are also available as 90o or 180o,
which can be rotated in 45o increments.

The various port sizes can be supplied with tapped ports, 125# ANSI Flanged,
250# ANSI Flanged, or 25 bar DIN Flanged.

G Series Pump Variety of Fluids

G Series Pump Variety of Fluids

G Series pumps a variety of fluids, including, but not limited to:

 

Hydrocarbons, Petrochemicals and similar:

  • Oils                                         * Fuels
  • Fats                                        * LPG

 

Viscous Liquids and Polymers:

  • Glues/ Adhesives                   *Grease
  • Asphalt                                   * Varnish
  • Styrenes


Food Process
:

  • Liquid margarine                   *Honey                              * Corn Syrup
  • Shortening                            * Vegetable oils                 * Fats
  • Hot cooking oils                    * Blood                              * Liquid sugars
  • Chocolates                           * Brewer’s yeast                * Molasses


Thermosensitive Liquids
:

  • Resins                                   * Tar                                  * Wax


Acids:

  • Acetic                                    * Phosphoric                      * Palmitic


Solvents
:

  • Ketones                                * Acetone


Manufacturing
:

  • Paints                                    * Inks                              * Hydraulic fluid
  • Fuels (diesel, kerosene etc)                                        * Butane
  • Alcohols                                 * Anhydrous Ammonia   * Glycol
  • Varnish                                  * LP Gas                         * Caustics
  • Sulphites                                * Freons                         * Grease

G Series Sealing Options

G Series Sealing Options

G Series pumps offer the widest range of sealing options in the industry. These options include:

Seal Type Seal Materials Maximum Viscosity [cSt] Temperature Range oC
Mechanical-Friction Drive Carbon/ Ceramic/ Viton® 3,250 -17 to 204
Mechanical-Friction Drive Carbon/ Ni-Resist/ Buna-N 3,250 -45 to 107
Mechanical-Friction Drive Carbon/ Ni-Resist/ Neoprene 3,250 -45 to 99
Mechanical-Positive Drive Carbon/ SiC/ Teflon® Encapsulated 5,400 -60 to 260
Mechanical-Double Friction Drive Carbon/ Ceramic/ Viton® 11,000 -17 to 204
Mechanical-Ammonia Double Friction Drive Carbon/ Ceramic/ Neoprene 11,000 -45 to 99
Mechanical-Tandem Friction Drive Carbon/ Ceramic/ Viton® 3,250 -17 to 204
Mechanical-Friction Drive SiC/ SiC/ Viton® 3,250 -17 to 204
G-R Cartridge-Friction Drive Carbon/ Ni-Resist/ Viton® 3,250 -17 to 204
G-R Cartridge-Positive Drive Carbon/ SiC/ Teflon® Encapsulated O 5,400 -60 to 260
G-R Cartridge-Balanced Type 1B Carbon/ Ni-Resist/ Viton 3,250 -17 to 204
G-R Cartridge-Balanced Type 1B Carbon/ Ni-Resist/ Neoprene 3,250 -45 to 99
Cartridge Carbon/ SiC/ Chemraz® 5,400 -20 to 260
Cartridge-Metal Bellows Carbon/ SiC/ Teflon® Encapsulated O 5,400 -29 to 204
Cartridge-Metal Bellows SiC/SiC/ Teflon® Encapsulated O-rings 5,400 -29 to 204
Cartridge-Metal Bellows SiC/SiC/ Kalrez® 5,400 -29 to 204
Cartridge Carbon/ TC/ Chemraz® 5,400 -68 to 315
Cartridge Carbon/ SiC/ Viton® 3,250 -17 to 204
Cartridge SiC/ SiC/ Viton® 3,250 -17 to 204
Cartridge-Double/ Tandem Carbon/ SiC/ Chemraz® 3,250 -17 to 204
Cartridge-Triple Lip Seal Teflon®/ CiC/ Chemraz® 440,000 -68 to 149
Packing Carbon Fibre 440,000 -45 to 260
Packing Teflon®/Graphite 44,000 -45 to 260
Packing Hi Temp Graphoil 44,000 -45 to 343

High and Dry

High and Dry

Gorman-Rupp self priming centrifugal pumps can be mounted “high and dry” above the sump liquid level. No need for (submersible) pumps to be in the liquid being pumped (wearing and corroding from the inside and the outside). This means there are no guide rails to maintain, no [leaking?] discharge bend to maintain/replace, and no need to open wet well lids and expose operators to falls.

Self priming pumps also virtually eliminate confined spaces issues and eliminate the need for lifting devices such as cranes or hoists, because pumps are at the surface [ground level], so are easy to access for monitoring and maintenance.

Less Maintenance

Less maintenance

Maintenance on a screw conveyor can get expensive. Re-welding flights, straightening screws, wear on the flights are all maintenance issues for screw conveyors transporting tough materials like cattle bones. Also, when distances become too long, a screw conveyor becomes less economical and more problematic.

If the right choice is a pump, to keep product in an enclosed pipe system and/or transport longer distances, then a JS Lamella should be the choice. Advantages of a JS Lamella over “comparable” pumps are as follows:

  • All wearing parts are replaceable on JS Lamella pumps.
  • Top and Bottom plateswear much slower than cam discs, so they only need replacing every 4-5 times the Cam discs are replaced. In “similar” pumps, the top and bottom plates are part of the cam disc arrangement, meaning repairs are more expensive than with JS Lamella pumps.
  • Wearing bars are bolted to the rotor so that no material can lodge between the rotor and the wearing bars. If they are not bolted (like on competitor pumps), pumped material can squeeze between wear bar and rotor, pushing the wear bar onto the lamella’s. This causes premature lamella wear and jamming of lamella’s.
  • A standard Lamella pump is designed with Mechanical seals, which take up less space than other seals (like rotoglyde seals and gland packing). Mechanical seals guarantees a 100 % seal. They also protect the bearings better from product ingress.
  • On a JS Lamella pump the shaft end and Rotor are assembled with 8 bolts, which are tightened to a specified torque. On “similar” pumps the rotor and shaft end are bolted but also welded together. By not welding those 2 parts, it is much easier to disassemble the parts for service and increases service life.
  • Key wearing parts like the rotor, lamellas, wearing plates, cam discs, top- and bottom plates and wearing bars, can be supplied in tool steel quality stainless steel, with high strengthwear resistanceand excellent corrosion resistance.
  • JS Proputec Lamella pump customers (who have also used “similar” pumps), claim that JS Proputec wear parts are stronger and last longer than the competitor pump/s. The difference is greater when the pumps are used for hard and tough materials (such as cattle bones).

Maintenance Features [V]

Maintenance Features

Gorman-Rupp Ultra V Series self priming pumps have been designed to be the easiest and most cost effective wastewater pumps to service and maintain. The following features make life easier for operators and very cost effective for asset owners:

Less Blockages

Because all internal passages will handle a 76mm spherical solid on most models, and pumps come standard with a patented self cleaning wear plate system to resist choking from stringy materials such as rags, Ultra V Series pumps will choke much less than most other wastewater pumps. This minimises downtime, increasing productivity.

Easy Blockage Removal

All pumps will eventually choke on something. But unlike submersible pumps that require cranes, safety barriers and several operators, Ultra V Series pumps have a large removable cover-plate, allowing access to pump internals in minutes, by just one operator, making blockage removal a quick and easy task.

Easy and Simple Clearance Adjustment

Most centrifugal pumps have radial clearances between impeller and wear rings. Gorman-Rupp Ultra V Series pumps have axial clearances that are adjusted through external adjusting screws on the cover-plate. One operator with 2 spanners can adjust clearances in just 4 minutes. Adjusting clearances on some submersible pumps could take several operators most of an entire day.

Easy and Simple Wear Plate Replacement

Wear plates on a Gorman-Rupp Ultra V can be replaced in just a few minutes. Operators just remove the pump inspection cover, and replace the wear plate which is bolted to it via 4 studs. Compare this to some centrifugal and submersible pumps, having wear rings that often require heating the casing ring and/or cooling the wear ring, and often requiring the chiselling off of the old one.

Easy Major Overhaul

The major wearing components in a Gorman-Rupp Ultra V, form part of the rotating assembly. This includes the seal, bearings, impeller and seal plate. This “cartridge” is easily replaced on an Ultra V, without needing to take it back to the workshop or even remove the pump from the piping system. Operators simply remove the old rotating assembly by removing 4 bolts, then “plug in” the new one. The old one can then be taken back to the workshop where operators can take their time to replace any worn parts and then use the repaired rotating assembly as a back-up spare.

Replacing Flap Valve

The Ultra V Series range of pumps has the most easily replaced suction flap valve on the market to replace or clean. Just isolate the pump, remove a small cover, then just slip the flap valve out to clean or replace.

Maintenance Features Super U

Maintenance Features

Gorman-Rupp Super U Series self priming pumps have been designed to be the easiest and most cost effective effluent pumps to service and maintain. The following features make life easier for operators and very cost effective for asset owners:

Easy Blockage Removal

All pumps will eventually choke on something. But unlike submersible pumps that require cranes, safety barriers and several operators, Super U Series pumps have a large removable cover-plate, allowing access to pump internals in minutes, by just one operator, making blockage removal a quick and easy task.

Easy and Simple Clearance Adjustment

Most centrifugal pumps have radial clearances between impeller and wear rings. Gorman-Rupp Super U Series pumps have axial clearances that are adjusted through external adjusting screws on the cover-plate. One operator with 2 spanners can adjust clearances in just 4 minutes. Adjusting clearances on some submersible pumps could take several operators most of an entire day.

Easy and Simple Wear Plate Replacement

Wear plates on a Gorman-Rupp Super U can be replaced in just a few minutes. Operators just remove the pump inspection cover, and replace the wear plate which is bolted to it via 4 studs. Compare this to some centrifugal and submersible pumps, having wear rings that often require heating the casing ring and/or cooling the wear ring, and often requiring the chiselling off of the old one.

Easy Major Overhaul

The major wearing components in a Gorman-Rupp Super U form part of the rotating assembly. This includes the seal, bearings, impeller and seal plate. This “cartridge” is easily replaced on a Super U, without needing to take it back to the workshop or even remove the pump from the piping system. Operators simply remove the old rotating assembly by removing 4 bolts, then “plug in” the new one. The old one can then be taken back to the workshop where operators can take their time to replace any worn parts and then use the repaired rotating assembly as a back-up spare

Materials of Construction

Materials of Construction

Gorman-Rupp pumps can be purchased in a variety of materials of construction, to suit the liquid being pumped.

The following table shows the available materials of construction of the Wastewater and effluent pump series.

Pump Series Standard Cast Iron HDI Fitted 316SS Fitted CD4MCu Fitted Complete CD4MCu Complete HDI High Chrome Impeller
Ultra V * * * *
Super T * * * * * # #
Super U * * * * *
10 Series * * * *
80 Series * #
PA/PAH * *

‘* Denoted all models

‘# Denotes some models

“Fitted” refers to pumps that are supplied with the standard construction pump, but fitted with special material impeller, wear plate, seal plate and shaft.

“HDI” is Gorman-Rupp’s “Hard Iron”. This material is used to resist the action of abrasive materials such as grit. This material has a Brinell hardness of approximately 400, making it approximately twice as hard as cast iron.

316SS is a marine grade stainless steel, used for service where liquids are corrosive. It has a PREN [Pitting Resistance Equivalent Number] of 27.1 and a Brinell hardness of approximately 217.

CD4MCu is a Duplex Stainless Steel, used where services are corrosive and abrasive. It has a PREN of 32.1 and a hardness of 280-300 on the Brinell scale.

High Chrome impellers, available in Super T Series models T3, T4 and T6 have a brinell hardness of approximately 650 and is an excellent material choice for highly abrasive service.

The following table shows the available materials of construction of the clean water and fuel handling pumps pump series.

Pump Series Cast Iron Construction Cast Steel Construction Cast Aluminium Construction Bronze Fitted Aluminium Impeller Ductile Iron Casing
0 Series # # # #
Roto Prime # # #
VG/VGH # #

 

Gorman-Rupp G Series [rotary gear pumps] are available in the following materials of construction:

  • All Iron (including Ductile iron rotors – 2.5 times the strength of cast iron)
  • All Steel
  • All stainless steel
  • Extreme Duty fitted (hardened components to resist wear)

PAH Maintenance Features

Maintenance Features

Gorman-Rupp PAH Series of “auto prime” pumps have been designed to be the easiest and most cost effective “dry prime” pumps to service and maintain. The following features make life easier for operators and very cost effective for asset owners:

Less Blockages

Because all internal passages will handle a 76mm spherical solid [on trash pump models], PAH Series pumps will choke less than most other wastewater pumps. This minimises downtime, increasing productivity.

Easy Blockage Removal

All pumps will eventually choke on something. But unlike common dry prime pumps, Gorman-Rupp PAH Series pumps have a removable cover-plate, allowing access to pump internals and/or the air separation chamber screen in minutes, by just one operator, making blockage removal a quick and easy task.

Easy and Simple Clearance Adjustment

Most centrifugal pumps [including most dry prime pumps] need to have their wear rings replaced when clearances have worn to an unacceptable level. This will require pumps to be pulled down and maybe casings heated and/or wear rings cooled, and maybe the old wear plate chiselled out, then a new one fitted. Gorman-Rupp PAH Series pumps have clearances that are adjusted through external adjusting screws on the back cover-plate. One operator with 2 spanners can adjust clearances in just 4 minutes. Adjusting clearances on other types of dry prime [or auto prime] pumps could take several operators most of an entire day. This means a Gorman-Rupp PAH Series will spend more time “at the coal face” and less time in the workshop.

Pump Operator Safety (T)

Pump Operator Safety

Duty of Care

It is incumbent upon designers, engineers and asset owners to provide the safest possible environment for operators of pumping equipment. For wastewater pump operators, a danger that is ever present is that of falling into open wet well pits. Even covered wells need to be opened for pump maintenance as with sewage pump stations. This risk is unavoidable when using submersible pumps, because the pumps are at the bottom of the wastewater wells. When pumps choke or need maintenance, safety lids need to be opened and operators are exposed to falls. This is a serious risk, with potential of serious injury or even death.

This risk can be greatly reduced or even eliminated by using Gorman-Rupp Super T Series self priming wastewater pumps, because they can be placed high and dry above the wet well, with no need to ever open wet well lids to expose operators to the risk of falling or drowning.

Reduce Fat Build-Up

One of the issues that plague some wastewater pump installations is that of fat, sediment or debris build-up in wet wells. This has the potential of causing odour issues, regular pump chokes, damage to wet well walls and reduced system reliability. By using a “self-cleaning wet well” design in conjunction with Gorman-Rupp Super T series pumps, wet wells have their contents removed (including fat, sediment and other debris) with each and every pump cycle. This removes odour issues, reduces the chances of gas production, reduces the risk of attack to concrete walls, and greatly reduces the need for entry into these wells for the purposes of cleaning etc.

Pump Safety Features

Gorman-Rupp Super T Series pumps also have other safety features. A safety pressure relief valve in the pump will vent any excessive pressure build-up. As a back-up to this, the suction check valve has a burst disc that will “pop” if for some reason the pressure relief valve malfunctions (venting any pressure build-up back to the wet well).

Pump Operator Safety (U)

Pump Operator Safety

Duty of Care

It is incumbent upon designers, engineers and asset owners to provide the safest possible environment for operators of pumping equipment. For wastewater pump operators, a danger that is ever present, is that of falling into open wet well pits. Even covered wells need to be opened for pump maintenance as with sewage pump stations. This risk is unavoidable when using submersible pumps, because the pumps are at the bottom of the wastewater wells. When pumps choke or need maintenance, safety lids need to be opened and operators are exposed to falls. This is a serious risk, with potential of serious injury or even death.

This risk can be greatly reduced or even eliminated by using Gorman-Rupp Ultra V Series self priming wastewater pumps, because they can be placed high and dry above the wet well, with no need to ever open wet well lids to expose operators to the risk of falling or drowning.

Pump Safety Features

Gorman-Rupp Super U Series pumps also have other safety features. A safety pressure relief valve in the pump will vent any excessive pressure build-up. As a back-up to this, the suction check valve has a burst disc that will “pop” if for some reason the pressure relief valve malfunctions (venting any pressure build-up back to the wet well).

Pump Operator Safety (V)

Duty of Care

It is incumbent upon designers, engineers and asset owners to provide the safest possible environment for operators of pumping equipment. For wastewater pump operators, a danger that is ever present, is that of falling into open wet well pits. Even covered wells need to be opened for pump maintenance as with sewage pump stations. This risk is unavoidable when using submersible pumps, because the pumps are at the bottom of the wastewater wells. When pumps choke or need maintenance, safety lids need to be opened and operators are exposed to falls. This is a serious risk, with potential of serious injury or even death.

This risk can be greatly reduced or even eliminated by using Gorman-Rupp Ultra V Series self priming wastewater pumps, because they can be placed high and dry above the wet well, with no need to ever open wet well lids to expose operators to the risk of falling or drowning.

Reduce Fat Build-Up

One of the issues that plague some wastewater pump installations is that of fat, sediment or debris build-up in wet wells. This has the potential of causing odour issues, regular pump chokes, damage to wet well walls and reduced system reliability. By using a “self-cleaning wet well” design in conjunction with Gorman-Rupp Ultra V series pumps, wet wells have their contents removed (including fat, sediment and other debris) with each and every pump cycle. This removes odour issues, reduces the chances of gas production, reduces the risk of attack to concrete walls, and greatly reduces the need for entry into these wells for the purposes of cleaning etc.

Pump Safety Features

Gorman-Rupp Ultra V Series pumps have more in-built safety features than any other self priming centrifugal pump. A safety pressure relief valve in the pump will vent any excessive pressure build-up. As a back-up to this, the suction check valve has a burst disc that will “pop” if for some reason the pressure relief valve malfunctions [venting any pressure build-up back to the wet well]. Ultra V pumps also have the safest fill port in the industry, by guarding operators against pump contents being sprayed at them when the pump fill port needs to be opened for inspection.

Pump Operator Safety Super U

Pump Operator Safety

Duty of Care

It is incumbent upon designers, engineers and asset owners to provide the safest possible environment for operators of pumping equipment. For effluent pump operators, a danger that is ever present is that of falling into open wet well pits. Even covered wells need to be opened for pump maintenance. This risk is unavoidable when using submersible pumps, because the pumps are at the bottom of the wet wells. When pumps choke or need maintenance, safety lids need to be opened and operators are exposed to falls. This is a serious risk, with potential of serious injury or even death.

This risk can be greatly reduced or even eliminated by using Gorman-Rupp Super U Series self priming effluent pumps, because they can be placed high and dry above the wet well, with no need to ever open wet well lids to expose operators to the risk of falling or drowning.

Pump Safety Features

Gorman-Rupp Super U Series pumps also have other safety features. A safety pressure relief valve in the pump will vent any excessive pressure build-up. As a back-up to this, the suction check valve has a burst disc that will “pop” if for some reason the pressure relief valve malfunctions (venting any pressure build-up back to the wet well).

Pump Station appearance options ES 200×200

The ES 200 x 200 has several appearance options to help it blend in with the surrounding environment. The fibreglass can be coloured in any colour from the RAL colour spectrum, but can also be fitted with a brick or stone look facing.

Gorman-Rupp pump station enclosure appearance options
Gorman-Rupp pump station enclosure appearance options
Gorman-Rupp pump station enclosure appearance options
Gorman-Rupp pump station enclosure appearance options

Pump Station Controls

Pump Station Controls

Although our Gorman-Rupp packaged pump stations can be supplied “less controls”, we can provide controls that are intuitive and designed specifically for self priming pumps. PLC based controls with simple touch screen interface is combined with pinpoint precision start/stop set points for one or more pumps. Controls can be supplied with DOL starters, soft starters or with VFD’s. Advantages of using Gorman-Rupp designed controls are as follows:

  • All components in Gorman-Rupp pump stations are warranted for 5 years [including the controls].
  • The controls are purpose built for self priming pumps.
  • Controls can incorporate an air bubbler liquid level control, improving reliability and safety.
  • Touch screen interface is very intuitive and easy to operate.
  • Locally supported in Australia

Pump Stations Enclosures Base Mounted

Enclosures Base Mounted Pump Stations

Gorman-Rupp’s ES Base Mounted pump stations can be mounted in any type of enclosure that suits the surrounding environment. Enclosures can be brick, concrete or acoustically rated sheet steel.

Gorman-Rupp ES base mounted pump enclosure
Gorman-Rupp ES base mounted pump enclosure
Gorman-Rupp ES concrete base mounted pump enclosure

Pump Stations Fully Equipped Auto-start

Fully equipped Auto-Start 

With Gorman-Rupp packaged sewage pump stations, you only need to connect the piping, hook up the power…. and your station is ready to go.

With a Gorman-Rupp engineered system, there is no need to dig a valve vault, no need to install guide rails or discharge elbows in the wet well, and no need to integrate all of the systems on site when all the equipment arrives in pieces. Your Gorman-Rupp ES Auto-Start pump station is fully equipped and ready to go. This includes:

  • Sewage pumps
  • Pump motors
  • Auxiliary combustion engine back-up driver
  • Isolation valves
  • Non-return valves
  • Air release valves
  • All inter-connecting piping
  • Suction and discharge gauges to monitor pump performance
  • Motor control centre
  • Liquid level control system
  • Ventilation
  • Internal lighting
  • All equipment is ready to mount into an existing or purpose built enclosure
  • Complete system testing prior to the station leaving Gorman-Rupp
  • 5 Year warranty on everything within the station

Pump Stations Fully Equipped Base Mounted

Fully equipped Base Mounted 

With Gorman-Rupp packaged sewage pump stations, you only need to connect the piping, hook up the power…. and your station is ready to go.

With a Gorman-Rupp engineered system, there is no need to dig a valve vault, no need to install guide rails or discharge elbows in the wet well, and no need to integrate all of the systems on site when all the equipment arrives in pieces. Your Gorman-Rupp ES Base Mounted pump station is fully equipped and ready to go. This includes:

  • Sewage pumps
  • Pump motors
  • Isolation valves
  • Non-return valves
  • Air release valves
  • All inter-connecting piping
  • Suction and discharge gauges to monitor pump performance
  • Motor control centre
  • Liquid level control system
  • Ventilation
  • Internal lighting
  • All equipment is ready to mount into an existing or purpose built enclosure
  • Complete system testing prior to the station leaving Gorman-Rupp
  • 5 Year warranty on everything within the station

Pump Stations Fully Equipped ES 200×200

Fully equipped ES 200 x 200

With Gorman-Rupp packaged sewage pump stations, you only need to connect the piping, hook up the power…. and your station is ready to go.

With a Gorman-Rupp engineered system, there is no need to dig a valve vault, no need to install guide rails or discharge elbows in the wet well, and no need to integrate all of the systems on site when all the equipment arrives in pieces. Your Gorman-Rupp ES 200 x 200 pump station is fully equipped and ready to go. This includes:

  • Sewage pumps
  • Pump motors
  • Isolation valves
  • Non-return valves
  • Air release valves
  • All inter-connecting piping
  • Suction and discharge gauges to monitor pump performance
  • Motor control centre
  • Liquid level control system
  • Ventilation
  • Internal lighting
  • Complete system testing prior to the station leaving Gorman-Rupp
  • 5 Year warranty on everything within the station

Pump Stations Fully Equipped ES 210×310

Fully equipped ES 210 x 310

With Gorman-Rupp packaged sewage pump stations, you only need to connect the piping, hook up the power…. and your station is ready to go.

With a Gorman-Rupp engineered system, there is no need to dig a valve vault, no need to install guide rails or discharge elbows in the wet well, and no need to integrate all of the systems on site when all the equipment arrives in pieces. Your Gorman-Rupp ES 210 x 310 pump station is fully equipped and ready to go. This includes:

  • Sewage pumps
  • Pump motors
  • Isolation valves
  • Non-return valves
  • Air release valves
  • All inter-connecting piping
  • Suction and discharge gauges to monitor pump performance
  • Motor control centre
  • Liquid level control system
  • Ventilation
  • Internal lighting
  • All equipment mounted in a 2.1m x 3.1m fibreglass enclosure
  • Complete system testing prior to the station leaving Gorman-Rupp
  • 5 Year warranty on everything within the station

Pump Stations Level Control System

Level Control System

Gorman-Rupp engineered systems can be supplied with all of the usual level control systems, but our preference is for the safest and most advanced “air bubbler system”. The principle involves pumping a low volume of air into a tube, which runs down into the wet well. The pressure is accurately measured using a pressure switch. At a fixed density, the hydrostatic pressure remains proportional to the level of water in the wet well. This measurement technology is used anywhere that reliable liquid measurement is required.

The compact compressor/pressure switch device is located in the control panel “high and dry” out of the wet well. Only the air tubing and the air enter the wet well. Advantages include:

  • No opening wet well lids to access the level control device [like ultrasonics, submersible transducers or floats].
  • Measurement not affected by surface foam, mist or suspended matter.
  • Reliable measurement over the long term.
  • Long compressor life
  • 24V power supply
  • Quick release connection terminals
  • Maximum margin for error 0.3%

Pump Stations Lower Civil Costs

Lower Civil Costs

With a Gorman-Rupp engineered system, there is great potential to save on civil engineering and site work. Firstly, because the pumps are self priming, only the suction lines are in the wet well, so the sump can be significantly smaller [while delivering the same flow rate capability]. There is also no need to construct a separate valve vault/chamber and assemble all the valves into it as part of the installation procedure, because Gorman-Rupp systems are supplied with all the valves fitted.

The Gorman-Rupp packaged pump stations are pre-tested, completely assembled and ready for installation. Just place them, bolt them down, attach the suction and discharge lines, connect the power, and the job is done.

Pump Stations Lower Operational Costs

Lower Operational Costs

A Gorman-Rupp engineered system will save the asset owner many thousands of dollars [when compared to the submersible pump alternative] over the life of the pump station. The reasons are many:

  • Access and maintenance are much easier for operators, because the pumps are at ground level and much easier to access.
  • The pumps themselves are the easiest to maintain in the industry. Just 10 minutes for one operator to adjust internal pump clearances [on both pumps] is just one example of this.
  • Pumps can be set up with a “self cleaning wet well” so that the contents of the wet well can be removed with every pump cycle [including fat and silt]. This reduces the need for “sucker trucks” to remove silt and fat build-up, because the Gorman-Rupp system can greatly slow down or eliminate this build-up from happening. Solving the problem, not treating the symptom is the answer to this often problematic occurrence.
  • Very long pump service life when compared to submersible pumps.
  • No guide rails or discharge bends to ever replace.
  • No real need to ever open the wet well lids. This means the number of operators needed to attend site for blockage removal or maintenance can be reduced.
  • Operators can trouble-shoot much easier with pressure gauges than amp readings. Pumps do pressure, not amps. Motor amp readings can be misleading, whereas gauges on the suction and discharge of a self priming pump will tell operators exactly where any issue lies. This cannot be said for amp readings on submersible pumps.
  • No false call-outs because of pump seal moisture detectors. Self priming pumps don’t have or need them.

Pump Stations Sound Attenuation

Sound Attenuation

Gorman-Rupp ES 200 x 200 pump stations can be supplied with an internal acoustic lining to reduce sound emissions to as low as 43 dB(A) at 1 metre. This specification is likely to meet all national, state and local requirements for sound emissions near domestic residences in Australia.

This low rating is achieved from a combination of vibration isolation, sound rated panelling, and applying acoustic surrounds to the ventilation system.

Pump Station Steep System Head

Steep System Head

When using Gorman-Rupp’s pump stations, a wide range of pumping solutions is available. One of these is the unique “parallel/series” piping arrangement that is only possible using self priming pumps. With this arrangement, pumps can alternate as is the usual case for sewage pump stations, but when a single pump can’t keep up with the inflow and the 2nd pump is required to “assist”, this is where the unique set-up comes into play. When two pumps operate together with this unique piping arrangement, the two pumps pump in series (not parallel)!!

This system has the capability of overcoming the losses normally associated with long or undersized rising mains (without “forcing” the pumps to operate outside of acceptable operating areas of their performance curve). It is also a good choice if more than one pump station uses the same rising main.

Ragazzini Accurate Metering

Accurate Metering

With flow capabilities right down to 0.2 litres per hour, Rotho pumps, being positively driven by electric gear-motors, are ideal for chemical dosing/metering.

The most common environmental applications are for the pumping of Sodium Hypochlorite, Sodium Bisulphate, Ferric Chloride and some polymers, as well as lime slurry and carbon slurry.

Ragazzini Applications

Applications

Because Rotho pumps can handle highly viscous and/or highly abrasive and/or shear-sensitive liquids, they are suitable for a wide range of industrial, municipal or mining applications.
Hard to transfer fluids like ceramic pastes, slurries, sludge etc are easily handled by Ragazzini Rotho pumps. Whether transferring at 180m3/hr or 0.5 litres per hour, there is a Rotho to do the job.
Pressures to 15 BAR assist is applications with long or small diameter discharge lines or whose viscosity pushes friction losses high.
Typical applications are found in chemical plants, water and wastewater treatment plants, the food and beverage sector, paints, inks and paper industries, marine, biogas and mining.
Correct hose selection and pump speed are paramount whether transferring, dosing or metering. So Ragazzini’s 60+ years experience and wide range of hose selection put us in the right position to select exactly the right pump for each and every application.

Ragazzini Easy Leak Detection

Easy Leak Detection

All Rotho pumps are equipped with a leak detector [optional for the PSF Series] to provide early indication of hose failure. This is a float type sensor that is located at the lowest point of the pump housing.

It is much easier to detect a leak with this system than if the casing was full of a lubricating fluid. And if the pumped fluid is a sensitive or dangerous fluid, early detection is best. There is also a greatly reduced chance of contamination of the pumped fluid if there is no lubricating liquid in the pump casing.

Ragazzini Easy Maintenance

Easy Maintenance

Ragazzini Rotho pumps have been designed to be the easiest peristaltic pump on the market to service. The casing is not filled with glycerine, CIP or SIP systems are easily used, and hose replacement is easy.

No glycerine or lubricating fluid in the casing means no messy fluid to drain and dispose of when maintenance is needed, and no re-filling of casing. Because it is easy to retract or remove rollers, hoses are quickly able to be set-up to pass Clean-In-Place or Sanitise-In-Place fluids, and they are put back into operation just as quickly.

Hose replacement is also easy. Suction and discharge ports are removed, casing cover removed, roller disengaged, and the hose is ready to replace.

Ragazzini Features

Features

Ragazzini Rotho peristaltic pumps have many features to make the pumping of viscous, abrasive or sensitive fluids as reliable and easy as possible – using the low friction roller bearing system.

There is no fluid in the casing, making maintenance easier and safer. Pump internals are easy to monitor and access through the Perspex pump cover. Hoses are also easy to replace, and leaks are easy to detect. CIP systems are also easy to implement with a Rotho.

Ragazzini High Performance Pumps

High Performance Pumps

Rotho peristaltic pumps are capable of operating on high suction lifts [to 7.5 metres], can produce high heads, provide a full seal when the pump is stopped and can deliver accurate dosing. Reversing flows are also possible by reversing the motor, and the pumps can run dry indefinitely without damaging the pump.

Being able to locate pumps above the fluid being pumped is a big advantage. It enables pumps to be easily accessed for maintenance and service and has the potential to save on capital costs because “dry pits” don’t need to be constructed to house the pumps.

Pressures to 15 BAR are possible with most Rotho models, which enables to pumps to operate with long or small discharge lines or overcome friction losses created by viscous products being pumped.

Ragazzini Hose Materials

Ragazzini Operator Safety

Operator Safety

Rotho pumps are perhaps the safest of all peristaltic pumps to operate. Their retractable roller hose replacement and CIP system required very limited “hands – on”.

Also, because Rotho pumps do not have lubrication filled casings, working on the pumps is cleaner and safer. And with fast leak detection, leaks of the pumped media are detected quickly.

Ragazzini Retractable Rollers

The “Roller on Bearing Design”

Ragazzini Rotho pumps use the “roller on bearing” design because it offers many advantages. This design eliminates the need for a lubricating fluid inside the pump housing, because there is no friction on the surface of the hose. And because the friction is reduced, hose life is extended.

Less friction also means smaller drives, less installed power, and less power consumption.

Because there is no casing fluid, food [and other sensitive products] can be transferred without the danger of contamination. Leak detection is also much easier with a Rotho because there is no lubricating fluid mixing with the pumped fluid. All Rotho pumps (optional for the PSF Series) are equipped with a leak detector to provide early indication of hose failure. This is a float type sensor that is located at the lowest point of the pump housing. It only takes a small amount of pumped fluid to have leaked to trigger an alarm and/or stop the pump.

With no lubrication fluid, hose replacement is greatly simplified and cheaper without having to drain and dispose of a messy and possibly contaminated oil or glycerine solution.

Ragazzini Solids Pumping

Solids Pumping

Transferring fluids containing solid particles is easy with a Rotho. With hose diameters from 5mm through to 127mm diameter, solids can be passed through the pump.

Whether hard solids [like grave], stringy solids or sensitive solids in food transfer applications, Rotho pumps with free hose passages can handle the job. The Rotho pump is also a good choice for transferring sheer-sensitive fluids or foamy product because the non-emulsifying action of the pump minimises damage to the product or its consistency.

Ramparts iPC Integrated Controls

Ramparts iPC Integrated Controls

The Ramparts iPC pump has a plug & play “Integrated Pneumatic Control” system. This system allows operators to adjust suction stroke speed so that pump operation can be matched with the characteristics of the fluid being pumped as well as the individual suction characteristics of the application. Speed control of the discharge stroke also allows the pump to be “tuned” to the application.

No other power is required to drive the pump or any of its parts.

Ramparts Maintenance Features

Having only 3 moving “wetted” parts, the RamParts diaphragm pump is very easy to maintain.

The ball valves are easily accessed (without tools) for inspection or choke removal. Ball checks are also easily replaced the same way.Diaphragms are also easily replaced with the aid of the (optional) “SidekickTM”.

Because parts replacement is simple, and the major wearing parts consist of just a diaphragm, two ball checks, two seats and two gaskets, the cost of a complete overhaul is just a fraction of that of

most other positive displacement pump types where the likes of rotors and stators are very expensive (not to mention difficult to remove and replace).

Ramparts Diaghragm pump for sludge, slurry, mud and other heavy liquids

Ramparts Materials of Construction

Ramparts Materials of Construction

Ramparts Diaphragm pumps are available with diaphragms and ball valves in the following materials:

Material Temperature Limits  (oC) Suitable Applications
Hypalon -23 to 93 Moderate chemical resistance, for general purpose
Neoprene -23 to 93 Moderate chemical resistance, good for fats, grease and solvents
Nordel (EPDM) -40 to 137 Excellent for low temperature and dilute acids
Nitrile (Buna-N) -23 to 87 General purpose for oils, water and hydraulic fluids
Viton -40 to 149 Excellent chemical resistance. Poor flex life for diaphragms
Dura-XL (Santoprene) -40 to 107 Excellent chemical and abrasion resistance
Dura-S (Hytrel) -28 to 104 Excellent abrasion resistance, FDA material, general purpose

 

Consult the Ramparts chemical resistance chart for specific chemicals.The following are the available materials for pump construction:

Pump Construction Lining material
15P Ductile Iron Neoprene, Nordel, Nitrile and ETFE*
20P Ductile Iron + 316SS Neoprene, Nordel, Nitrile and ETFE*
30P Ductile Iron Neoprene, Nordel, Nitrile and ETFE*
40P Ductile Iron Neoprene, Nordel, Nitrile and ETFE*
60P Ductile Iron N/A
15iPC Ductile Iron ETFE* only
20iPC Ductile Iron Neoprene, Nordel, Nitrile and ETFE*
30iPC Ductile Iron Neoprene, Nordel, Nitrile and ETFE*
40iPC Ductile Iron Neoprene, Nordel, Nitrile and ETFE*

 

ETFE is a fluoropolymer (aka – Tefzel). It is the best lining material for chemical and abrasive resistance in acid and organic slurries.

Ramparts P Series Controls

Ramparts P Series Controls

An advanced DRC solid-state controller energises the Ramparts P Series’ solenoid valves to drive the pump’s suction and discharge strokes. The controller provides the following functions:

  • Allows independent pressure adjustment of suction and discharge stroke (saving energy and lengthening diaphragm life)
  • Allows cycle adjustment from 0-40 strokes per minute
  • Allows 0-5 seconds discharge time
  • Can run in manual or automatic [remote start/stop] modes
  • Has an LCD stroke counter (totaliser)
  • Liquid filled suction and discharge panel mounted pressure gauges
  • Diaphragm failure alarm (optional)
  • Ramp-Up filter press feed option – automatically follows the increasing pressure in a filter press (optional)
  • Step-up filter press feed – increases the pump’s discharge pressure in four adjustable timed pressure steps (optional)
  • Can be set up for duplex pump operation with sequential strokes (optional)

Ramparts Superior Solids Handling

Superior Solids Handling

The rugged construction and extra-thick casing of RamParts air-driven diaphragm pumps stand up to the abuses of the most demanding sludge and slurry applications. They overcome the “high-wear” problem commonly found in double diaphragm and progressive cavity pumps.

They also handle larger solids than most air driven pumps, and many other styles of positive displacement pumps. The 15P and 20P will handle 25mm spherical solids through their ball check valves, the 30P and 40P will handle a 28mm spherical solid and the 60P will handle a 63mm sphere. If ball check valves are replaced with full passage flap valves, solids handling capacities can increase to equal pump suction/ discharge size.

RamParts pumps will handle abrasive and/or corrosive slurries, shear sensitive slurries, delicate crystal slurries, and slurries with up to 75% solids.

Reduced Labour Costs

A manual transfer system requires a manned fork lift, which also brings into play wear and tear on the fork lift, increases OH&S risks and increases the chance of equipment damage.

Using a blow tank system requires an operator, and this system also requires the addition of water, which needs to be cooked out of the product, using more fuel than that required for a JS Lamella pump transfer system.

JS Lamella pump transfer system reduces labour cost

Reduced WH&S

Using Gorman-Rupp self priming pumps can reduce WHS issues associated with pumping applications. Because pumps are located at “ground level”, high and dry above the wet well [not in it], pumps are easily accessed by operators for monitoring, maintenance or repair. Some of the identified risks that can be reduced or eliminated include:

  • Working over water
  • Working at heights
  • Working with cranes
  • Working with heavy swinging weights

Other OH&S issues can also be eliminated with the use of self primers. Unlike submersible pumps, self priming pumps do not need guide rails and discharge base elbows that will need service and replacement over the life of the installation, requiring confined spaces entry and the associated dangers. Submersible pumps also need chains to raise them to the surface. These chains can become corroded and weakened over time, creating a potential danger to operators lifting them.

Rotating Assembly

Gorman-Rupp’s Ultra V, Super T and Super U series pumps in Australia are equipped with a removable rotating assembly. These rotating assemblies [R/A] can be removed as a cartridge without disturbing the pump volute or the piping system.

They are equipped with “pusher-bolt” capabilities to enable easy removal of the R/A. Having a spare rotating assembly as a backup, along with a spare wear plate, enables operators to get their wastewater pump back up and running within an hour, no matter what the problem with the pump.

Each new rotating assembly comes with its own Five Year Warranty, basically extending the warranty of your sewage pump for another five years.

gorman-rupp removable rotating assembly

SCS Easy Installation

The SCS is delivered to site:

Suction lines and service lines are welded into place:

The SCS is placed into position, ready for grouting to the control manhole:

A PVC sleeve is positioned over the suction and service lines:. The SCS is almost ready for back-filling.

self cleaning sump easy pump installation delivered to site
self cleaning sump Suction lines and service lines are welded into place.jpg
self cleaning sump easy pump installation PVC sleave is positioned over the suction and service lines
self cleaning sump easy pump installation ready for back-filling

SCS Eliminate Air Entrainment

Air entrainment can shorten bearing and seal life of sewage pumps, and it can also build up in discharge lines, increasing energy consumption. Air can get into pumps as water cascades into wet wells, carrying air with it. 

Baffles are often used to guide the water away from the suction inlet of pump units, which does help eliminate this problem, but it can add a significant amount to pump station costs to install.

The SCS avoids air entrainment naturally, by having the suction lines at the farthest point from sewer inlets.

self cleaning sump eliminate air entrainment

SCS Eliminate Fat Build-Up

Sucker trucks are sometimes needed to remove fat that has built up in the conventional wet well arrangement. This happens because in the conventional submersible system, the oil and fat sit on the surface and is left behind after each pump cycle. Not only are sucker trucks used, but specialised wet well cleaners and chemicals are also called upon to treat the symptom. The SCS system treats the cause. It keeps fat moving, then suck’s it out with each and every cycle, not giving it a chance to build up to a thick blanket requiring intervention. 

During the pump cycle in the SCS system mode of operation, the pump is run at full speed at the start and at the completion of each cycle. During the middle of the cycle, the water level is kept at a level that promotes the fastest movement of particles and floating matter. The whole aim is to keep the solids in suspension and moving, and to remove them with each cycle.

The use of VFD controls means that there is no issue with the number of starts each of the motors has in any particular hour.

SCS Eliminate Sediment Build-Up

Sucker trucks are sometimes needed to remove sediment that has built up in the slow moving areas of the conventional wet well arrangement. This is not permitted to happen with the SCS concept.

During the pump cycle, the pump is run at full speed at the start and completion of each cycle. During the middle of the cycle, the water level is kept at a level that promotes the fastest movement of particles. The whole aim is to keep the solids in suspension and moving and that is what the design of the SCS and the mode of operation are all about.

The use of VFD controls means that there is no issue with the number of starts each of the motors has in any particular hour.

SCS Greatly Reduced Blockages in Pumps

The SCS system is designed to keep solids moving and prevent them from settling out and “balling” and “matting” together. Because the hair, rags and wet wipes will be pumped before they get a chance to ball and matt together, the pumps are much less likely to block because of this.

Also, Gorman-Rupp Super T Series pumps can be supplied with the most advanced system for handling solids laden liquids. Called the ERADICATOR ™ Solids management System, the technology incorporates design features to minimise downtime and make the operator’s job easier and quicker.

SCS Greatly Reduced Maintenance Costs

The SCS system, combined with and above ground Gorman-Rupp pump station would be a revolution to any Water Authority or Council not currently using self priming pumps.

There would be no need for the following “accepted” operational “interventions”:-

  • The use of sucker trucks for removing silt or fat build-up
  • The use of chemicals to break up and remove fat deposits
  • The use of well washers to clean off fat
  • The use of baffles to direct flow away from pump suction inlet’s
  • The replacement of discharge [duck-foot] bends. Because there is none.
  • The replacement of submersible pump guide rails or lifting cranes. Because pumps are surface mounted.
  • The use of cranes to lift pumps out of wet wells [because pumps are above ground].
  • The use of 3 persons to attend site for a blockage removal [because only one person is needed to attend a self priming pump station].
  • The use of specialised vehicles with lifting hoists.
  • The use of 3 persons to perform routine maintenance such as oil changes, gauge checks, valve maintenance etc, because these tasks can safely be performed at a self priming pump station with only one person, and without the need for confined spaces access or the need to open wet well lids.
  • The use of 3 persons and many hours to adjust pump clearances or change wear rings, as Gorman-Rupp above ground pumps only require one operator for less than 30 minutes to perform this task.

SCS Minimise Blockages

Because the self cleaning sump [SCS] has a relatively small volume, the time between pumping cycles is much shorter than usual. This means that the items that normally block pumps [stringy materials such as rags, hair, wet wipes etc] do not have a chance to settle out and matt together. If these items don’t get the time to matt together, they remain small and easily pumpable.

During the pump cycle, the pump is run at full speed at the start and completion of each cycle. During the middle of the cycle, the water level is kept at a level that promotes the fastest movement of particles. The whole aim is to keep the solids in suspension and moving and that is what the design of the SCS and the mode of operation are all about.

See the below ball of rags that stopped this large submersible pump, because the rags are in a large ball. They have balled because of settling out and matting together.

blocked subemrsible pump

SCS Reduce Civil Costs

Because of the much smaller volume of the SCS, the excavation “footprint” can be smaller. Also, the cost of the HDPE inclined collector pipe of the SCS is less expensive than the conventional cylindrical wet well normally associated with submersible sewage pumping stations.

A “conventional” system also has a below ground valve vault that needs to be excavated, installed and fitted out. This is not needed for a Gorman-Rupp packaged pump station, because the valves are all packaged into the pump station which comes complete with the pumps and all interconnecting piping.

SCS Reduce Energy Consumption

It is the use of VFD control and the mode of operation of our SCS system that enables a reduction in energy consumption. The pump starts at full speed, but after the “regulation level” is reached within the SCS system, the pump slows to a speed that keeps the wastewater at a pre-determined level. This level is decided based on the level in the system that permits the fastest flow into the SCS, therefore keeping all solids in suspension.

The system holds the regulation level for 3-5 minutes, depending on the quantity of fat/ oil/ grease coming into the system.

Because this is the bulk of the time of the pumping cycle, the pump spends more time at the lower flow, and hence lower head because of the decrease in friction losses through the discharge piping. Because the head is lower, the energy consumption is reduced.

Self Priming 0 Series

Gorman-Rupp 0 Series pumps are self priming, requiring no add-on priming systems. After being filled with liquid, the 0 Series pumps are guaranteed to prime on suction lifts up to 7.6metres above the liquid level.

0 Series pumps are ideal for continuous, automatic operation in industrial clean water or fuel type liquids pumping duties.

Self Priming 10 Series

Gorman-Rupp 10 Series pumps are self priming, requiring no add-on priming systems. After being filled with liquid, the 10 Series pumps are guaranteed to prime on suction lifts up to 7.6metres above the liquid level.

10 Series pumps are ideal for continuous, automatic operation in industrial wastewater or effluent pumping duties.

Self Priming 80 Series

Gorman-Rupp 80 Series pumps are self priming, requiring no add-on priming systems. After being filled with liquid, the 80 Series pumps are guaranteed to prime on suction lifts up to 7.6metres above the liquid level.

80 Series pumps are ideal for continuous, automatic operation in industrial effluent or clean water pumping duties.

Self Priming Roto Prime

The Gorman-Rupp Roto Prime series will automatically remove air and vapour from suction lines.
Whenever air or vapour is present at the start of the pumping operation – or when there is a loss of suction because of air or vapour during pumping – the priming pump automatically moves air and vapour from the suction line to the discharge line. Once the flowing liquid from the centrifugal portion of the pump builds up sufficient pressure in the discharge system, the priming pump stops.

Here is a more in-depth look at how the priming system works:

 

Full Priming Position. When air or vapour is in the suction line, the spring is able to hold the priming pump in full air pumping position:

 

Partial Priming. As the pump evacuates air and vapour from the lines, liquid pressure builds up on the underside of the sliding priming pump housing, moving it toward neutral.

 

Neutral. When air and vapour are removed, liquid pressure equalises spring pressure and the priming pump automatically slides into neutral…..where it remains until air and vapour appear again in the system.

Roto-Prime pumps are actually two pumps in one. The small powerful vane-type pump within the main centrifugal housing can prime an absolutely dry 100mm line with zero back pressure in approximately 6 seconds per metre without initial manual priming.

Roto-Prime pumps are actually two pumps in one. The small powerful vane-type pump within the main centrifugal housing can prime an absolutely dry 4 inch (102mm) line with zero back pressure in approximately two seconds per foot without initial manual priming. And, this priming pump will evacuate suction lines against back pressure up to 8 pounds per square inch.

self-priming roto pump automatically remove air and vapour from suction lines
self-priming roto pump automatically remove air and vapour from suction lines 2
self-priming roto pump automatically remove air and vapour from suction lines 3

Self Priming Super T Rev 1

Super T Series pumps are true self primers. After being filled with liquid, Super T Series pumps are guaranteed to prime and (more importantly) re-prime every time. They will do this on suction lifts up to 7.6metres above the liquid level.

Super T Series pumps are ideal for continuous, unattended, automatic operation in municipal and industrial wastewater or effluent pumping duties.

Self Priming Super U Rev 1

Super U Series pumps are true self primers. After being filled with liquid, Super U Series pumps are guaranteed to prime and (more importantly) re-prime every time. They will do this on suction lifts up to 7.6metres above the liquid level.

Super U Series pumps are ideal for continuous, unattended, automatic operation in municipal and industrial effluent (limited solids handling) pumping duties.

Self Priming Ultra V Rev 1

Ultra V Series pumps are true self primers. After being filled with liquid, Ultra V Series pumps are guaranteed to prime and (more importantly) re-prime every time. They will do this on suction lifts up to 7.6metres above the liquid level.

Ultra V Series pumps are ideal for continuous, unattended, automatic operation in municipal and industrial wastewater or effluent pumping duties.

Super T Maintenance Features

Gorman-Rupp Super T Series self priming pumps have been designed to be the easiest and most cost effective wastewater pumps to service and maintain. The following features make life easier for operators and very cost effective for asset owners:

Less Blockages

Because all internal passages will handle a 76mm spherical solid on most models, and pumps come standard with a patented self cleaning wear plate system to resist choking from stringy materials such as rags, Super T Series pumps will choke much less than most other wastewater pumps. This minimises downtime, increasing productivity.

Easy Blockage Removal

All pumps will eventually choke on something. But unlike submersible pumps that require cranes, safety barriers and several operators, Super T Series pumps have a large removable cover-plate, allowing access to pump internals in minutes, by just one operator, making blockage removal a quick and easy task.

Easy and Simple Clearance Adjustment

Most centrifugal pumps have radial clearances between impeller and wear rings. Gorman-Rupp Super T Series pumps have axial clearances that are adjusted through external adjusting screws on the cover-plate. One operator with 2 spanners can adjust clearances in just 4 minutes. Adjusting clearances on some submersible pumps could take several operators most of an entire day.

Easy and Simple Wear Plate Replacement

Wear plates on a Gorman-Rupp Super T can be replaced in just a few minutes. Operators just remove the pump inspection cover, and replace the wear plate which is bolted to it via 4 studs. Compare this to some centrifugal and submersible pumps, having wear rings that often require heating the casing ring and/or cooling the wear ring, and often requiring the chiselling off of the old one.

Easy Major Overhaul

The major wearing components in a Gorman-Rupp Super T form part of the rotating assembly. This includes the seal, bearings, impeller and seal plate. This “cartridge” is easily replaced on a Super T, without needing to take it back to the workshop or even remove the pump from the piping system. Operators simply remove the old rotating assembly by removing 4 bolts, then “plug in” the new one. The old one can then be taken back to the workshop where operators can take their time to replace any worn parts and then use the repaired rotating assembly as a back-up spare.

Super T Pump Safety

Duty of Care

It is incumbent upon designers, engineers and asset owners to provide the safest possible environment for operators of pumping equipment. For wastewater pump operators, a danger that is ever present is that of falling into open wet well pits. Even covered wells need to be opened for pump maintenance as with sewage pump stations. This risk is unavoidable when using submersible pumps, because the pumps are at the bottom of the wastewater wells. When pumps choke or need maintenance, safety lids need to be opened and operators are exposed to falls. This is a serious risk, with potential of serious injury or even death.

This risk can be greatly reduced or even eliminated by using Gorman-Rupp Super T Series self priming wastewater pumps, because they can be placed high and dry above the wet well, with no need to ever open wet well lids to expose operators to the risk of falling or drowning.

Reduce Fat Build-Up

One of the issues that plague some wastewater pump installations is that of fat, sediment or debris build-up in wet wells. This has the potential of causing odour issues, regular pump chokes, damage to wet well walls and reduced system reliability. By using a “self-cleaning wet well” design in conjunction with Gorman-Rupp Super T series pumps, wet wells have their contents removed (including fat, sediment and other debris) with each and every pump cycle. This removes odour issues, reduces the chances of gas production, reduces the risk of attack to concrete walls, and greatly reduces the need for entry into these wells for the purposes of cleaning etc.

Pump Safety Features

Gorman-Rupp Super T Series pumps also have other safety features. A safety pressure relief valve in the pump will vent any excessive pressure build-up. As a back-up to this, the suction check valve has a burst disc that will “pop” if for some reason the pressure relief valve malfunctions (venting any pressure build-up back to the wet well).

The JS Lamella System

Lamella pump shown in typical rendering application
Lamella pump shown in typical rendering application 2

Top and Bottom Plate Design

Top and Bottom Plate Design

Venturi – Easy To Install

Because they are mounted on lagoon banks, most of the installation work is done outside of the lagoon.

Venturi – Easy To Maintain

Because all the mechanical equipment is located outside of lagoons or tanks, pumps and the Venturi Aerator are easily accessed for maintenance. No need for boats to get to the equipment, or long and expensive walkways, or for long cable and winch systems to drag pontoons in.

Gorman-Rupp pumps are the easiest pumps to maintain, and the Venturi Aerator has no moving parts, and just a few bolts to access liner or nozzle.

Venturi – Efficient

The Venturi Aeration system is the most efficient use of energy for transferring oxygen. The following are Standard Oxygen Transfer Rate [SOTR’s] for various mechanical aeration devices in kg/kW/hr:

  • – Venturi Aerator 1.65  –  1.85
  • – Surface aerator w/draft tube 0.73  –  1.27
  • – Surface high speed 0.73  –  1.21
  • – Submerged turbine 0.61  –  1.21
  • – Submerged turbine/sparger 0.73  –  1.09
  • – Surface brush and blade 0.48  –  1.09

Venturi – Low Cost of Ownership

Because Venturi Aeration systems are on the “bank”, there is no requirement for cranes, multiple operators using boats or winches and no need to remove equipment from service. One operator can perform routing [or major] maintenance events with basic hand tools in minutes, not hours. This has a tremendous effect on the “bottom line” when extrapolated over years of service.

Venturi – Safe for Operators

Operators do not need to row in boats to a Venturi Aeration system and they don’t have to walk across narrow planks to “board” their aeration system. The work does not need to be done in the middle of a lagoon. Operators can safely access a Venturi Aerator and its pump.

Venturi – Simple, Uncomplicated design

When Venturi Aerators are used with Gorman-Rupp pumps, there is no need for pontoons, walkways, intricate retrieval systems, or special sumps. Pumps and Aeration system are mounted on simple concrete plinths on the side of lagoons or on the side of tanks.