DV-300i 12" x 12" Centrifugal Pump

Description Of Unit

The pump is an end suction centrifugal pump with a fully automatic priming system built into the design. This 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 27 ft (8.2m) can be achieved.

The pump can handle raw unscreened sewage, trade effluents, thick slurries and solids up to a normal limitation of 3.5” (90mm) diameter.

The impeller is of a two bladed fully open design, of 316 stainless steel construction. It is mounted on a 431 stainless steel shaft fitted to a cast iron bearing bracket; which also provides concentric location for the pump volute.

The pump volute is close-grained Ductile Iron fitted with replaceable 316 Stainless Steel wearing parts to simplify and reduce costs of pump rebuilds.

The mechanical seal is leak tight and suitable for sewage and sludges. The seal uses a silicon carbide rotating face mounted to a silicon carbide stationary seat with Buna-N or Viton seal elastomers. The arrangement incorporates a glycol water mixture-filled seal housing to lubricate the seal faces.

Guards are fitted as standard to all moving parts.