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Being a pioneer in the use of Submersible Borewell Pumps for Firefighting, PEW now offers Centrifugal Back pull-out Endsuction pumps for use in places where Submersible pumps are not permitted / connot be used. These pumps are non-selfpriming with axial suction port, radial discharge port and horizontal shaft. The back pull-out design enables removal of the motor, coupling, bearing bracket and impellar without disturbing the pump housing or pipework.
FEATURES
Self vented, foot mounted, center suction volute casing & single stage, closed / semi open dynamically balanced non-clog impeller ensure unimpeded liquid flow.
Supporting feet are cast integral with the casing along with suction and discharge nozzles.
Flange drilling standards as per DIN 24255 / ISO 2858 or as per customer's requirement.
Designed for 16bar working pressure with optional casing for a working pressure of up to 20 bar.
A robust and solid construction that guarantees long life even under high suction pressure conditions.
Heavy-duty, deep-grooved closed ball bearings with minimum 50,000/- hours operating life under normal conditions ensure no dirt intrusions.(Grease lubricated; oil lubrication available on request )
Heavy-duty, stiff solid shaft design with low L3/D4 ratio ensures less than 0.05 mm shaft deflection at the seal face in all operating conditions which extends seal life.
Seal housing is constructed to accommodate different seal/gland designs, so as to meet heavy-duty requirements, if any.
Excellent parts interchangeability reduces inventory levels for spare parts to a minimum.
Special design for high temperature thermic fluid available on request.
Motor or engine driven sets.
Special monoblock versions available on request.
Applications
For pumping clear/turbid water / chemicals & volatile liquids.
Air conditioning plants, power station, mine drainage, sprinkler systems for fire fighting, and booster service. Can be used for oils, brine, etc.
Range
Delivery sizes up to 250mm
Capacity up to 990m3/hr
Head up to 120m meters
RPM 500 to 3600
Temperature upto 90ºC
MATERIAL OF CONSTRUCTION
Volute casing, stuffing box, gland pusher, bearing caps and endshield-Cast Iron
Shaft EN-8 / SS 410
Sleeve SS 410
Packing Gland / Mechanical Seal
Impeller Any grade of Stainless Steel, cast or fabricated, Bronze, WCB, CF-8, CF-8M, Alloy 20, Cast Iron, etc.