A large Abattoir (a good Hydro Innovations customer) was having reliability problems with their helical rotor pump on a cattle yard run-off application.
Because of large suspended solids in the fluid, the pump struggled with choking and was expensive to repair. It was not an easy application as the pump was delivering 20 litres per second (l/S) at a pressure of 800kPa (because of the long discharge line it was pumping through), and not only that, was on a suction lift in excess of 5 metres.
After a site inspection and a hydraulic analysis of the system, Hydro Innovations suggested the plant look at a Gorman-Rupp VS3A60-B self priming pump which is the only two stage self priming solids handling centrifugal pump on the market. The pump is of cast iron construction with a large inspection cover to allow access to pump internals for inspection and/ or service. It is capable of handling spherical solids up to 63mm in diameter, and internal clearance adjustments can be done in minutes, allowing operators to keep the pump at peak operating efficiency for the life of the asset.
The VS360-B is part of a “family” of Gorman-Rupp high performance, high head self priming wastewater pumps that can deliver flows from 10 l/s through to 120 l/s, and heads to 95 metres. The pumps all have replaceable “self cleaning” wear plates to assist in handling stringy materials such as rags and gloves, and they can operate on suction lifts up to 7.6 metres. Being self priming pumps, they are much safer to maintain than submersible pumps because operators do not have to work over water or work with cranes or heavy swinging weights.
The pump was duly installed and has operated with minimal operator intervention for the past 6 years.
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