How to successfully use the simpler & better EDUR DAF pump system
The Disadvantages with Traditional DAF Pumping Systems
Traditional DAF (Dissolved Air Flotation) pumping systems have so many moving parts. The components include an air compressor, pressure vessel, centrifugal pump and of course the controller to get all three components to work harmoniously.
The disadvantages of such a complicated system are many. For one, the pressure vessel requires regular certification and records must be kept. The controller needs monitoring. The maintenance time and costs for the many components can be costly.
How our EDUR DAF Pump System Can Eliminate these Disadvantages
When one of the largest Chicken processors in Australia wanted to eliminate these complications, and install a more reliable system that requires no controls and is set and forget, they approached Hydro Innovations. The technical staff at Hydro have a combined 80 years of experience in the pump industry. The knowledge of the team is second to none.
After consultation, an EDUR LBU 404 C120L with 5.5kW motor was installed. The EDUR multi-phase pump produces consistent fine micro bubbles perfect for the operation of a DAF tank. The EDUR pump has the unique ability to draw atmospheric air into the suction line, shear it, mix it with the water being drawn from the “clean” end of the DAF tank, and saturate the air into the water [by pressurising it].
The EDUR pump eliminates the need for a compressor, control system, conventional pump, air saturation vessel (and ongoing certifications). The pressure vessel can be removed or bypassed, or they can be incorporated it into the new system.
The Simplicity of the EDUR DAF Pump System
Because of the simplicity of the system, operators will see an improvement in energy consumption [because they are not running compressors] and a vast improvement in maintenance costs. There is no pressure vessel to continually certify, no compressor to maintain, and no more complicated control system to operate. Just “set and forget”.
With the pump running at 10m3 per hour and circulating approximately 10% of the inflow to the DAF tank, the plant has been running free of maintenance and interference for over 4 years.
Speak to Hydro Innovations today to simplify and improve your DAF system with EDUR multi-phase pumps. Hydro Innovations are the exclusive agents for the Edur multi-phase DAF pump.
Both canned motor-pumps and EDUR magnetically coupled pumps have low NPSHr, but because of their “diffuser devices”, EDUR pumps handle some evaporation of refrigerants reliably.
EDUR pumps:
Ask Our Team
The EDUR LBU multiphase pump is a multi-stage centrifugal pump with the unique capability of being able to pump a liquid/gas mixture. The centrifugal pump is constructed of either C.I./ Bz/ SS, Nodular Cast Iron, All-Bronze, Stainless Steel, or Super-Duplex Stainless Steel construction, so may be used to handle a variety of liquids.
Air, Oxygen, Carbon Dioxide and Ozone gases can be introduced into the suction line and transported and used to mix or disperse the gases. This makes the pump ideal for DAF plants, where the multiphase pumps provide the task of air saturation without the use of compressed air (no compressor, air saturation tank or associated controls).
Advantages include:
- Liquid flows to 16 l/s
- Gas content up to 20%
- Cast iron/Bronze/Stainless steel, Nodular cast Iron, All-Bronze, Stainless Steel, or Super-Duplex Stainless Steel construction
- Completely replace the “old” DAF system with a single pump
Ask Our Team
The EDUR PBU multiphase pump is a single-stage peripheral centrifugal pump with the unique capability of being able to pump a liquid/gas mixture. The centrifugal pump is constructed of stainless steel, so may be used to handle a variety of liquids. Air, Oxygen, Carbon Dioxide and Ozone gases can be introduced into the suction line and transported and used to mix or disperse the gases. This makes the pump ideal for DAF plants, where the multiphase pumps provide the task of air saturation without the use of compressed air (no compressor, air saturation tank or associated controls).
Advantages include:
- Liquid flows to 1 l/s
- Gas content up to 15%
- Stainless steel construction
- Completely replace the “old” DAF system with a single pump
Download the Brochure | Ask Our Team
Designing pumps since 1927, EDUR Pumpenfabrik has developed a range of pumps for use in refrigeration systems. They have been designed to provide a maximum level of safety, reliability and efficiency. They are the safe option because they use standard TEFC motors, which don’t need to be cooled using the pumped media. They are efficient because they use magnetic couplings. By using magnetic couplings energy is not wasted by pumping fluid over the motor [as with “canned motor pumps”] and back through to the separator.
Advantages include:
- Suitable for ammonia, C02, synthetic refrigerants and refrigerants containing hydrocarbons/li>
- No heat transfer from motor to pumped media/li>
- Low maintenance/li>
- Low NPSH values/li>
- Pulsation free operation/li>
- Long service life
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