+44 (0) 1903 892 358 info@hughes-pumps.co.uk

Plunger Pumps

Manufactured in the UK since 1970

Union jack flag

High & Ultra high pressure plunger pumps

Our range of plunger pumps operate at pressures from 70 to 2800bar (1,000 to 40,000psi) & flow rates to 800lpm (214gpm) with ratings from 30 to 375kW (40 to 500hp).

Every pump undergoes a three-hour test where numerous functions are monitored & recorded.

We manufacture the pumps in-house, including crankshafts & gearboxes, in our state-of-the art machine shop, utilising the latest CNC machine tool technology & machine tending robots.

Features

  • 431 stainless steel pumpheads
  • Solid tungsten carbide/ceramic plungers & self-adjusting seals
  • In-line valve arrangement for maximum efficiency & prevents the adverse effects of cyclic stress in the pumphead
  • Interchangeable plunger kits
  • Hardened, alloy steel crankshafts with heavy duty roller & steel backed white metal main bearings, supported between each connecting rod (HP40 & HP120 have two roller bearings only)
  • SG iron crankcases with pressure lubrication, oil filtration & oil cooling (HP40 & HP120 are splash lubricated)
  • Forged connecting rods with low friction, shell type big end bearings & lead bronze lined small end bushes
  • Gear driven, eliminating the need for belt drive
  • Pressure gauge
  • Safety valve or burst disc
  • Outstanding seal, plunger & valve life

Options

  • 316 or Duplex stainless steel pumpheads for seawater applications (depending on model/pressure rating)
  • Choice of gear ratios to suit diesel engines or electric motor drives
  • SAE adaptor housings for flange mounting the pump to a diesel engine flywheel housing, ensuring extremely compact, perfectly aligned installations & enclosing all moving parts
  • ATEX compliant

High pressure plunger pumps

hp40  pump

HP40

Plunger Pump


Maximum Power

40HP

30kW


 

Maximum Pressure

1000bar

at 16lpm

14,500psi at 4.3gpm

 

Maximum Flowrate

103lpm

at 160bar

27.2gpm at 2,320psi

hp65  pump

HP65

Plunger Pump


Maximum Power

65HP

48kW


 

Maximum Pressure

1000bar

at 27lpm

14,500psi at 7.2gpm

 

Maximum Flowrate

103lpm

at 250bar

27.2gpm at 3,625psi

hp120 pump

HP120

Plunger Pump


Maximum Power

120HP

90kW


Maximum Pressure

1400bar

at 35lpm

20,300psi at 9.3gpm

Maximum Flowrate

277lpm

at 175bar

73.4gpm at 2,538psi

Hughes pumps HP300 pump

HP220

Plunger Pump


Maximum Power

220HP

160kW


Maximum Pressure

1400bar

at 62lpm

20,300psi at 16.4gpm

Maximum Flowrate

277lpm

at 310bar

73.4gpm at 4,495psi

Hughes pumps HP300 pump

HP300

Plunger Pump


Maximum Power

300HP

225kW


Maximum Pressure

1400bar

at 77lpm

20,300psi at 20.5gpm

Maximum Flowrate

484lpm

at 250bar

128.2gpm at 3,625psi

Hp500  pump

HP500

Plunger Pump


Maximum Power

500HP

375kW


Maximum Pressure

1400bar

at 129lpm

20,300psi at 34.2gpm

Maximum Flowrate

806lpm

at 250bar

213.7gpm at 3,625psi

UHP plunger pumps

UB30 pump

Ultrabar 30

UHP Plunger Pump


Maximum Power

220HP

160kW


Maximum Pressure

2800bar

at 30lpm

40,600psi at 7.9gpm

Maximum Flowrate

44lpm

at 2000bar

11.8gpm at 29,000psi

If  you would like more information on any of our plunger pumps or wish to talk to sales please submit the form below

13 + 10 =

Email newsletter

We send out monthly emails that include updates about the factory, staff spotlights, stock units and other useful information. If you would like to receive this email from us, please enter your details here.

Water Jetting brochure

Find out about our range of water jetting equipment - pumps, units and large range of accessories. 

hughes pumps water jetting brochure front page

Process Pumps brochure

Find out about our range of process pumps, which cover a large range of applications.

Process pumps brochure front page