DV-80 3" x 3" Pump

Size is 3" x 3"
500 GPM maximum
138 FT Head maximum

DV-80
	Cutsheet
	Curve
	Drawing

Description Of Unit

The pump is an end suction centrifugal pump equipped with a fully automatic priming system. The priming system enables the pump to self prime from completely dry conditions, even with extended suction lines. Liquid is not required to prime the pump, and therefore, in temporary dry trench conditions, the pump will ‘snore’ until such time as liquid is available.

The priming system utilizes a standard air compressor which feeds a pneumatic ejector that is mounted above the air/water separation tank. With this device, suction lifts up to 28 ft (8.5m) can be achieved. The pump is fitted with a priming isolation valve for use in flooded suction conditions to prevent the flow of water into the air compressor system.

The pump can handle raw unscreened sewage, trade effluents, thick slurries and solids up to a normal limitation of 1.25" (32mm) diameter.

The impeller is of a three bladed fully open design, of Gray Cast Iron material. It is mounted on an EN-56 stainless steel shaft fitted to an aluminum bearing bracket with registered fit to provide concentric location for the pump volute. Both bearings are sealed for life by the manufacturer and require no additional lubrication.

The pump volute is of Gray Cast Iron fitted with replaceable Gray Cast Iron wearing parts. The mechanical seal is leak tight and suitable for sewage and sludge. The seal uses a silicon carbide rotating face mounted to a silicon carbide stationary seat with Buna -N (nitrile) seal elastomers. The arrangement incorporates an oil-filled seal housing to lubricate the seal faces. Guards are fitted as standard to all moving parts.