A New South Wales council has recently purchased a Gorman-Rupp 4 auto-prime pump on a trailer to provide mobile standby pumping capability for its many pump stations.

The Gorman-Rupp PAH4A60C-B unit was supplied with a Yanmar diesel engine and installed into an acoustically rated enclosure. The enclosure has access doors to allow personnel to service the unit, and it was fitted with a battery trickle charger to enable the charging of the battery when the unit is close to mains power.

Unlike most auto-prime pumps, the internal clearances of the unit can be adjusted externally instead of needing to replace wear rings every time wear occurs.

The pump was selected because of its versatile performance envelope, enabling it to support numerous sewage pump stations. It can deliver flows from 30 L/s through to 120 L/s, and deliver heads to 85m. It will also pass a 76mm spherical solid and uses a compressor/venturi priming system.

img_1191Gorman-Rupp PAH series pumps can operate on suction lifts to 7.6m, and other models in the range can deliver flows to 900 L/s and heads to 160m.

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