Calder Limited

Engineered high pressure solutions

Calder Ltd design and manufacture high pressure pumping equipment for a range of industries including the oil & gas, petrochemical and industrial sectors. Our current annual turnover is in excess of $30 million and, since the foundation of our company in 1981, we have supplied more than $250 million of pumping equipment to many varied industries worldwide.

Accreditations and memberships:

  • ISO 9001 & ISO 14001 standards

  • Achilles & First Point Assessment

  • Investors in People registered company

  • Member of the UK Water Jetting Association

  • Member of British Safety Council

Activity & industry

Our primary activity is the design, manufacture, supply, commissioning and servicing of hazardous area, high pressure reciprocating plunger pump, rotary screw compressor, and vacuum packages.

Oil & gas process

  • Methanol, Ethanol & Glycol (MEG) Injection

  • Chemical Injection

  • Scale Squeeze

  • Condensate Injection

  • Glycol HPUs

  • Water Soluble Hydraulics

  • Desalination Reverse Osmosis

  • Glycol Circulation

  • Power Fluid Pumps

  • Produced and Sea-water Injection

Well service & drilling

  • Acidising

  • Cementing

  • Coil Tubing

  • Cuttings Re-injection/Waste Disposal

  • Fracturing Pumps & Well Kill Pumps

  • Mud Pumps

  • Pipeline Fill and Pressure Test

High pressure water jetting

  • High Pressure Water Blast 4000 bar (58,000 psi)

  • Abrasive Cutting, Coating Removal etc.

  • Full range of high pressure water-jetting accessories

Packaged systems
We manufacture a range of standard packages/systems for specific applications. Our project engineering teams can also work with you to develop bespoke high pressure pump, compressor and vacuum packages that meet your particular needs and project specification.

Our facilities
Based in Worcester, England our professional team of engineers understand the demands of the industries we serve and are ready to assist with your enquiry.

Fluid types
Calder equipment will pump almost any liquid ranging from potable water to liquid butane, light hydrocarbon, condensates, and heavy mud and drill cuttings. If zero leakage is your requirement, we can incorporate the appropriate packing design with monitoring systems. For highly corrosive duties we offer a wide range of wetted parts, which include super duplex stainless steel, 316 SS and nickel aluminium bronze.

Pressure ranges up to 4000 bar (58,000 psi).

Diesel powered
Diesel pump packages suitable for use in ATEX Group II, Cat 3, Gas Group B, T3 hazardous environments are fully compliant with current North Sea legislation. Our diesel powered pump units are fitted with ‘yellow alert’ as standard and comply with the new requirement for ‘unmanned operation’.

Electric powered
Electric powered pump units are suitable for operation in ATEX Group II, Cat 2, Gas Group B, T3 hazardous areas.

Variable speed drives
Our variable speed drive units are available with remote control facilities with full monitoring of flow, pressure etc. AC or DC drives up to 1800 kW (2400HP).

Calder can incorporate your pump package into an acoustic enclosure to comply with your specific requirements including blast case designs.

Water-jetting accessories
A comprehensive range of water-jetting accessories is available from a single source supplier, including PPE, nozzles, guns, hoses and much more…

Reference list
Calder’s extensive reference list includes most major oil & gas companies around the world.


Prescott Drive

+44 (0)1905 759090
+44 (0)1905 759091