The Screw pump is a multi purpose submersible
Archimedes screw pump with a pumping capacity of 50m3/h.
This pump has been designed for use in skimmers and
transfer or offloading pump applications and is able to pump
a wide range of liquids ranging from water to the heaviest
debris-laden viscous oils. The Screw pump can deliver a
maximum of 12bar outlet pressure, benefits from
water/steam annular injection on the inlet as standard and
debris cutting knife to handle solids such as seaweed,
plastics and ropes.
The Screw pump range is constructed from robust seawater
resistant aluminum for the casings and stainless, acid proof
steel internals with special seals that ensure the pump
remains dry. This hydraulically driven, positive
displacement pump with low screw speed avoids further
emulsification of the recovered product thus making further
separation more efficient.
The special internal geometry of the Screw design ensures a
gentle pumping action that will not emulsify oily water, and
ensures the efficient movement of material through the unit.
The pump can also handle solids up to 30mm in diameter,
should the pump become clogged, it can be reversed to
expel the blockage. The Screws range of impressive features
makes it well-suited to many applications, including for use
as a transfer pump in oil recovery skimmers, for emergency
pumping of heavy crude, bunker oil, or bitumen, for tank
cleaning, pipeline maintenance, and for sludge removal from
waste oil pits.
The Screw pump range has been extensively tested in the
field and has received accreditation from Bureau Veritas
confirming their recovery capacities in oils of varying
Length 400 mm
Width 250 mm
Height 500 mm
Weight 49 kg
Capacity 61,2 max m3/h
Hydraulic flow 160 max l/min
Hydraulic pressure 210 max bar
Power req. 56 max kW
Discharge pressure 12 bar