Welcome to ClydeUnion Pumps

ClydeUnion Pumps is the culmination of a long and eventful engineering legacy. Through the highly-respected, ground-breaking core companies from which we originate, we are able to claim a 140-year history. Now we are playing an instrumental role in securing the vital energy and water resources that a sustainable society will rely on in the future.

Our engineered-to-order pumping technology is used to carry out all kinds of critical industrial functions. The vast majority of nuclear power plants currently in operation around the world employ our reactor feed pumps. We are also a valued flow control engineering partner to the oil/gas industry - supporting upstream, downstream, transportation and offshore exploration activities. Other key areas we address include marine applications, seawater desalination and waste water treatment.

Combining a wealth of pump and system design knowledge with facilities equipped with the latest design, analytical and pump testing equipment, we provide our customers with exceptional products and service - so as to boost efficiency and ensure prolonged operation. In addition to providing after sales service on all our current products, we also offer continued support on legacy pumps.


The ClydeUnion Pumps team of dedicated after sales personnel are in place worldwide to support our customers in many industry sectors. Depending on your location we will provide either direct engineering service support, field service support or assistance in conjunction with our Approved Service Providers. Whichever option is provided, you can be assured of the best attention from fully qualified and experienced engineers.

ClydeUnion Pumps is committed to providing world class after sales support for all of our legacy brands, as well as new equipment, offering full backup for obsolete products and for third party equipment. Our history and breadth of experience, as well as our geographical coverage and expertise, make us the natural first choice for any pump related enquiry, no matter where the location, the scale of the task or the original manufacturer.

With our extensive experience in design, upgrades, rerates and re-engineering; we are committed to supporting all your centrifugal and reciprocating pumps throughout their operational lifetime, – which can be in excess of 60 years. This means we not only provide customer aftersales services for our current ClydeUnion and Plenty pumps, and our many heritage brands: Allen Gwynnes, David Brown, Girdlestone, Harland, Mather & Platt, Plenty Mirrlees Pumps, Pompes Guinard, S&N Pump, Union Pump, WH Allen, and Weir Pumps but we can also act as your lifecycle partner for all OEM’s.

Our objective is to add value to our customers’ operations and our key services include:

  • OEM warranted parts to original or upgraded specification
  • Rapid Response solution provider on turned and cast items in emergency situations
  • Equipment repair, maintenance, overhaul, re-rates, problem solving and technical support
  • Global presence offering local service facilities in over 40 countries




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Aug 26 - 29

ONS 2024

Location: Hall 2 Booth #2480, Stavanger Forum, Norway

Brands: ClydeUnion Pumps

Description: Join the ClydeUnion Pumps team as we exhibit alongside our partners Nordic Flow AS. The ONS (Offshore Northern Seas) conference and exhibition plays a pivotal role in shaping the energy industry.

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Nov 11 - 14


Location: Stand 4470, Abu Dhabi, United Arab Emirates

Brands: GD Engineering, M&J Valve, ClydeUnion Pumps

Description: We are thrilled to invite you to visit us at Stand 4470, where we will be showcasing our cutting-edge flow technology. Our pump, valve and closure teams are looking forward to meeting you to discuss how our engineering solutions can help you navigate the complexities of carbon reduction.

Where to Buy

Looking for information on quotes, pricing, and servicing? Contact our world class team and find out more.

Find a distributor near you


North America



Middle East

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