Collection: Diaphragm Pumps

Shop Products

Pressure Washing Supplies UK is a UK supplier of pressure washing equipment, pumps, hose reels, hoses, valves, fittings and replacement parts for professional, agricultural and industrial use.

  • Comet P48 415V Motor Pump Unit
    Comet P48 415V Motor Pump Unit
    Part No: 7300110200
    • 30 Bar
    • 51.7 Lpm
    • 5.5 Hp, 4.0 kW - 415 Volt - 9 Amps
    • 2 pole 100 frame motor with switch
    • NBR diaphragms
    • With GCP3V pressure regulator
    • 26mm hose barb inlet
    Regular price £1,652.41 GBP
    Regular price Sale price £1,652.41 GBP
    View Product
  • Comet MP30 230V Motor Pump Unit
    Comet MP30 230V Motor Pump Unit
    Part No: 7300110000
    • 30 Bar
    • 29.2 Lpm
    • 3.0 Hp, 2.2 kW - 230 Volt
    • 2 pole 100 frame motor with switch
    • NBR diaphragms
    • With GCP2V pressure regulator
    • 23mm hose barb inlet
    Regular price £1,495.42 GBP
    Regular price Sale price £1,495.42 GBP
    View Product
  • Comet MP20 230V Motor Pump Unit
    Comet MP20 230V Motor Pump Unit
    Part No: 7300109800
    • 30 Bar
    • 19.5 Lpm
    • 2.0 Hp, 1.47 kW - 230 Volt
    • 2 pole 90 frame motor with switch
    • NBR diaphragms
    • With GCP2V pressure regulator
    • 23mm hose barb inlet
    Regular price £1,276.12 GBP
    Regular price Sale price £1,276.12 GBP
    View Product
  • Comet MC25 230V Motor Pump Unit
    Comet MC25 230V Motor Pump Unit
    Part No: 7300099300
    • 25 Bar
    • 18.5 Lpm
    • 1.5 Hp, 1.2kW - 230 Volt
    • 2 pole 80 frame motor with switch
    • NBR diaphragms
    • With Hydra pressure regulator
    • 18mm hose barb inlet
    Regular price £784.37 GBP
    Regular price Sale price £784.37 GBP
    View Product
  • Impeller
    Impeller
    Part No: 7273-0003B
    • Nitrile
    • 6 Blades
    • 51x22mm
    • 8mm ø Shaft
    Regular price £28.27 GBP
    Regular price Sale price £28.27 GBP
    View Product
  • Comet BPX25 2 Diaphragm Pump
    Comet BPX25 2 Diaphragm Pump
    Part No: 6163001200
    • 15 Bar max
    • 28.4 Lpm max
    • 1450 Rpm
    • 1.3 Hp, 0.9 kW
    • For 3/4" shaft 4 stroke engines
    • NBR diaphragms - PP body
    • Integrated pressure accumulator
    Regular price £501.28 GBP
    Regular price Sale price £501.28 GBP
    View Product
  • Comet BPX25 2 Diaphragm Pump
    Comet BPX25 2 Diaphragm Pump
    Part No: 6163001100
    • 20 Bar max
    • 27.9 Lpm max
    • 1450 Rpm
    • 1.6 Hp, 1.2 kW
    • For 3/4" shaft 4 stroke engines
    • NBR diaphragms - Nylon body
    • Integrated pressure accumulator
    Regular price £490.45 GBP
    Regular price Sale price £490.45 GBP
    View Product
  • Comet BPX25 2 Diaphragm Pump
    Comet BPX25 2 Diaphragm Pump
    Part No: 6163000700
    • 20 Bar max
    • 27.9 Lpm max
    • 650 Rpm
    • 1.6 Hp, 1.2 kW
    • 1"3/8 female PTO shaft
    • NBR diaphragms - Nylon body
    • Integrated pressure accumulator
    Regular price £454.02 GBP
    Regular price Sale price £454.02 GBP
    View Product
  • Comet P40/20 3 Diaphragm Pump
    Comet P40/20 3 Diaphragm Pump
    Part No: 6158000100
    • 20 Bar max
    • 41.5 Lpm max
    • 550 Rpm
    • 2.3 Hp, 1.69 kW
    • For use with motor or engine gearbox
    • GCP20 pressure regulator
    • Viton diaphragms
    Regular price £756.36 GBP
    Regular price Sale price £756.36 GBP
    View Product
  • Comet MP55 3 Diaphragm Pump
    Comet MP55 3 Diaphragm Pump
    Part No: 6157000100
    • 30 Bar max
    • 54 Lpm max
    • 550 Rpm
    • 4.6 Hp, 3.44 kW
    • 6 hole flange for stub shaft
    • NBR diaphragms
    • With safety valve
    Regular price £659.84 GBP
    Regular price Sale price £659.84 GBP
    View Product
  • Comet BPV500 V6 Diaphragm Pump
    Comet BPV500 V6 Diaphragm Pump
    Part No: 6153000100
    • 20 Bar max
    • 474 Lpm max
    • 550 Rpm
    • 24.4 Hp, 18 kW
    • 1"3/8 splined x 32mm F shafts
    • Desmopan diaphragms
    • Pump feet supplied
    Regular price £3,670.34 GBP
    Regular price Sale price £3,670.34 GBP
    View Product
  • Comet BPS300 6 Diaphragm Pump
    Comet BPS300 6 Diaphragm Pump
    Part No: 6150000200
    • 20 Bar max
    • 299 Lpm max
    • 550 Rpm
    • 15.4 Hp, 11.3 kW
    • 1"3/8M x 1"3/8M 6 splined thru shaft
    • NBR diaphragms
    • Pump feet supplied
    Regular price £1,710.76 GBP
    Regular price Sale price £1,710.76 GBP
    View Product
  • Comet BPS260 5 Diaphragm Pump
    Comet BPS260 5 Diaphragm Pump
    Part No: 6147000100
    • 20 Bar max
    • 249 Lpm max
    • 550 Rpm
    • 12.9 Hp, 9.5 kW
    • 1"3/8M x 1"3/8M 6 splined thru shaft
    • NBR diaphragms
    • Pump feet supplied
    Regular price £1,481.33 GBP
    Regular price Sale price £1,481.33 GBP
    View Product
  • Comet BPS200 4 Diaphragm Pump
    Comet BPS200 4 Diaphragm Pump
    Part No: 6144000100
    • 20 Bar max
    • 199 Lpm max
    • 550 Rpm
    • 10.3 Hp, 7.6 kW
    • 1"3/8M x 1"3/8M 6 splined thru shaft
    • NBR diaphragms
    • Pump feet supplied
    Regular price £1,300.45 GBP
    Regular price Sale price £1,300.45 GBP
    View Product
  • Comet MC18 2 Diaphragm Pump - Acid
    Comet MC18 2 Diaphragm Pump - Acid
    Part No: 6127010400
    • 15 Bar max
    • 11.9 Lpm max
    • 1450 Rpm
    • 0.52 Hp, 0.38 kW
    • For 3/4" shaft 4 stroke engines
    • Viton diaphragms - PP body
    • Integrated pressure regulator
    Regular price £370.35 GBP
    Regular price Sale price £370.35 GBP
    View Product
  • Comet MC18 2 Diaphragm Pump - Acid
    Comet MC18 2 Diaphragm Pump - Acid
    Part No: 6127010100
    • 15 Bar max
    • 11.9 Lpm max
    • 1450 Rpm
    • 0.52 Hp, 0.38 kW
    • For 71 frame B3/B14 electric motor
    • Viton diaphragms - PP body
    • Integrated pressure regulator
    Regular price £266.73 GBP
    Regular price Sale price £266.73 GBP
    View Product
  • Comet MC18 2 Diaphragm Pump
    Comet MC18 2 Diaphragm Pump
    Part No: 6127001000
    • 15 Bar max
    • 11.9 Lpm max
    • 1450 Rpm
    • 0.52 Hp, 0.38 kW
    • For 5/8" shaft 4 stroke engines
    • NBR diaphragms - Nylon body
    • Integrated pressure regulator
    Regular price £362.13 GBP
    Regular price Sale price £362.13 GBP
    View Product
  • Comet MC18 2 Diaphragm Pump
    Comet MC18 2 Diaphragm Pump
    Part No: 6127000400
    • 15 Bar max
    • 11.9 Lpm max
    • 1450 Rpm
    • 0.52 Hp, 0.38 kW
    • For 3/4" shaft 4 stroke engines
    • NBR diaphragms - Nylon body
    • Integrated pressure regulator
    Regular price £347.77 GBP
    Regular price Sale price £347.77 GBP
    View Product
  • Comet MC18 2 Diaphragm Pump
    Comet MC18 2 Diaphragm Pump
    Part No: 6127000100
    • 15 Bar max
    • 11.9 Lpm max
    • 1450 Rpm
    • 0.52 Hp, 0.38 kW
    • For 71 frame B3/B14 electric motor
    • NBR diaphragms - Nylon body
    • Integrated pressure regulator
    Regular price £244.82 GBP
    Regular price Sale price £244.82 GBP
    View Product
  • Comet MC8 2 Diaphragm Pump - Acid
    Comet MC8 2 Diaphragm Pump - Acid
    Part No: 6126010100
    • 15 Bar max
    • 7.8 Lpm max
    • 1450 Rpm
    • 0.27 Hp, 0.20 kW
    • For 71 frame B3/B14 electric motor
    • Viton diaphragms - PP body
    • Integrated pressure regulator
    Regular price £266.73 GBP
    Regular price Sale price £266.73 GBP
    View Product