HH-80 Information
Fact Sheets
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Drawings
E-Electric; Q-Quiet; T-Trailer; S-Skid
HH-80 3" x 3" High Head 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 mounted above the
air/water separation tank. With this device, suction lifts up to 28ft.
(8.5m) can be achieved.
The pump can handle raw unscreened sewage, trade
effluents, thick slurries and solids up to a normal limitation of 1.0”
(25mm) diameter.
The impeller is of a fully open design with
balance holes and back pump out vanes. The pump utilizes a three vane
impeller design for pumping under most conditions. The impeller 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 casing is fitted with replaceable
wearing parts, consisting of the impeller and wear plates, to simplify
and reduce costs of pump rebuilds.
The mechanical seal is leak tight and suitable
for sewage and sludges. The mechanical seal is fitted with silicon
carbide rotating and stationary faces and Buna-N or Viton
seal elastomers. The arrangement incorporates an oil-filled seal
housing to lubricate the seal faces.
Material options include: Ductile Iron pump casing and fitted with 316 stainless
steel or 2% chromium steel alloy (340 BHN) impeller and wear plates; complete
316 stainless steel wet ends; complete CD4MCu wet ends; or complete chromium
alloy wet ends.
Guards are fitted as standard to all moving
parts.
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