In addition to widespread utilization in upstream and midstream applications, our flow control solutions feature very heavily in downstream applications too. Our pumps, valves and flitration systems are incorporated into the sulfur recover units (SRUs) that are used within modern refinery processes, in the equipment needed for condensate removal and in the fractionation of gas compounds (ethane, butane and propane) from NGLs. Our technology is also at the heart of gas processing and separation procedures.


Today’s complex refinery processes demand specialised pumping solutions. Extremes of temperature, high-pressure and the ability to handle volatile fluids, calls for highly engineered pumps that can perform reliably in such arduous conditions. ClydeUnion Pumps has many years of worldwide experience in supplying process pumps to the refinery industry and is committed in providing its customers with solutions for the most complex of pumping requirements.

The broad range of refinery applications demand the widest spectrum of pump types of any industry. Due to the careful amalgamation of our heritage brands, we have a pump product to meet every refinery process. A recent intensive product review and product enhancement process has ensured that, not only does ClydeUnion Pumps have machines suitable for all refinery processes, but that our products also incorporate the latest advancements in materials, bearing and sealing technology.

ClydeUnion Pumps has been extremely successful with its patented ‘saphite’ coating system in minimising pump erosion on the problematical catalytic cracker, considerably extending the period between overhaul.


The process and transferring of petrochemicals demands a high level of pumping reliability and with our ClydeUnion Pumps having a reputation for supplying reliable pumps installed and working all over the world in the most aggressive applications, we are the ideal partner to choose. Reliability has always been a benchmark for ClydeUnion Pumps products and notable features have recently been introduced to enhance reliability well above market levels. One specific example is improved bearing arrangements extending bearing operating life beyond specification requirements and customer expectations.

ClydeUnion Pumps is proving that ‘attention to detail’ in design and manufacture can extend mean time between failure (MTBF) above what has been recognised as acceptable in the past.

We recognise current environmental regulations limiting toxic emissions and have reacted positively by introducing the patented CP system. This system is capable of providing product pump sealing with ‘zero’ emissions to the atmosphere. The CP system also contributes to health and safety by reducing the risk of contact with hazardous liquids.

Gas Treatment + Processing

Treating and processing gas requires engineered pump solutions to ensure safe, efficient handling. Our ClydeUnion Pumps product range covers simple Glycol Dehydration reciprocating pumps through to high powered CUP-BB3 and CUP-BB5 pumps used on gas scrubbing services. ClydeUnion Pumps are also at the forefront of product development for cryogenic applications. Our CUP-OH5 and CUP-VS6 ranges have the capability of operating down to minus 180°C with ‘zero’ emission to the atmosphere using our patented CP systems. Over 1,000 units are installed worldwide with safety and reliability being key factors when customers select our products for these highly demanding services.

The removal of CO2 (carbon dioxide) and H2S (hydrogen sulphide), commonly referred to as Amine gas sweetening, is a further area where ClydeUnion Pumps has 50 years of operational experience. Many smaller process plants are equipped with our high pressure reciprocating pump range whilst our multi-stage CUP-BB3 and CUP-BB5 ranges are installed in major gas plants in the Middle East, Russia, China, South America and a number of floating production units. These pumps can be custom engineered with impellers designed for optimum NPSH performance, high integrity bearing arrangements and condition monitoring instrumentation.

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