Filter Pumps

These pumps are operated on water or compressed air, and produce a satisfactory vacuum, even when the water (or compressed air) pressure is low, i.e. it requires little water (or compressed air) for its operation. The fact that the pumps are fitted with a NON RETURN VALVE ensures the maintenance of vacuum. even when the water (or compressed air) supply is interrupted.

How to choose the type of connection for the filter pump

If the OUTSIDE THREAD on the tap outlet measures:

  • 21mm.- A 1/2" B.S.P. female connection is needed (Cat.No. 1588-1/2)
  • 26.5mm. - A 3/4" B.S.P female connection is needed (Cat.No. 1588-3/4)
  • 22mm - A M22 female connection is needed (Cat.No. 1588-M22)

If the INSIDE THREAD on the tap outlet measures:

  • 11.5mm. A 1/4" B.S.P. male connection is needed (Cat.No. 1588-1/4)
  • 13mm.- A 9/16" B.S.B. male connection is needed (Cat.No. 1588-9/16)

If you have any Questions,
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