BOP test pump unit

BOP Test Pumps and Systems

Our BOP test systems and pumps are designed and packaged in a variety of formats to suit the specific location, operating, and application requirements.

The high pressure pump is a space-saving, vertical design from the Hammelmann range. With discharge pressures of up to 3,000 bar, variable stroke options, long time between services, and superb reliability, the Hammelmann pump is ideal for blowout preventer test systems.

BOP test pump - skid 2BOP test pump - skid 1

Pump skid: At the heart of the BOP test system is the high pressure pump unit featuring the Hammelmann reciprocating plunger pump.


BOP test unit - mixing tank 1BOP test unit - mixing tank 1

Mixing tank: A self-contained mixing tank can prepare the test water to suit the prevailing environmental conditions.


BOP testing - accumulator 1BOP testing - accumulator 2

Accumulator: A stand-alone accumulator skid allows the pressure to build to preset levels ready for a sudden, controlled release of test water into the blowout preventer.


Control packages are tailored to suit your requirements, from basic functionality to complete control system philosophy. Options include onboard control, remote operation, system monitoring, fault finding, and data logging.

We also design and build ancillary equipment such as mixing tanks and accumulator packages to accompany your high pressure blow-out preventer test pumps.

Our knowledge and experience in the design and manufacture of high pressure test units is extensive. Contact us to find out more about our ability to supply equipment for the most demanding of hazardous environments, and the most rigorous customer and industry standards and specifications - sales@calder.co.uk or +44 1905 759090



For additional information please also see our recent news item: Drillship BOP Test System.

As with all of our well service pumps, our BOP testing systems will comply with regional and industry standards and regulations including NORSOK, ATEX, and IECEx.

BOP test system mounting options:

  • Skid – the lightest option. With fork-truck slots. Can be supplied with a lifting frame.
  • Crash frame – a lightweight option affording considerable protection during transportation. Can include both fork-list slots, and lifting eyes.
  • Container – providing maximum protection from transportation operations and environmental conditions. Comes with a choice of noise attenuation options. Can include both fork-list slots, and lifting eyes.
  • Skid and separate environmental enclosure – a lightweight skid with the option of a floor or skid-mounted environmental enclosure with noise attenuation options.
  • Trailer – road-going or site trailer allowing easy movements between onshore sites.