--- title: RACM | Ultra Efficient | Chemical Resistant Pumps description: Explore RACM self-priming pumps engineered for durability and efficiency, designed for various applications to minimize downtime and maximize performance. image: https://www.crestpumps.co.uk/hubfs/Website/Product%20Images/Other%20Pumps/RACM.webp --- ![Fuel Transfer](https://www.crestpumps.co.uk/hs-fs/hubfs/Banners/Fuel%20Transfer.webp?width=300&name=Fuel%20Transfer.webp) RACM  # Single or multistage side channel self-priming pumps - [Products](https://www.crestpumps.co.uk/pumps) - [Other Pumps](https://www.crestpumps.co.uk/pumps/other-pumps) - [Single or Multistage Side Channel Self-priming Pumps](https://www.crestpumps.co.uk/pumps/other-pumps/racm) RACM single or multistage side-channel self-priming pumps feature radial impellers. Use: RACM pumps are designed to handle clean liquids without suspended solids. They are suitable for boiler feed applications, surge tank systems, liquid conveying systems containing gas, condensate extraction, fuel handling, and more. Maximum flow rate 12 m3/h ![RACM1](https://www.crestpumps.co.uk/hs-fs/hubfs/RACM1.png?width=300&name=RACM1.png) Maximum head 160 m Maximum pressure 16 BAR ![chemical_plant_tint_optimized_950](https://www.crestpumps.co.uk/hs-fs/hubfs/chemical_plant_tint_optimized_950.jpg?width=300&name=chemical_plant_tint_optimized_950.jpg) ## THE CREST PUMPS LIFETIME GUARANTEE **No matter how old your pump becomes, in the unlikely scenario that you have a problem, our engineers will be on hand to diagnose the issue and help you get up and running again. That’s why, with Crest Pumps you’ll never need to worry about unplanned downtime again.   Talk to us now to discuss your chemical pump requirements or book a free site audit to see how much time and money you could save!** [Talk To Us](https://www.crestpumps.co.uk/pumps/other-pumps/racm#talk-to-us) Reliability Redefined ## Built to outlast and outperform Discover the significant savings you can achieve and explore the potential financial benefits that await you. [Cost Calculator](https://www.crestpumps.co.uk/cost-calculator) ![fuel](https://www.crestpumps.co.uk/hs-fs/hubfs/fuel.jpeg?width=300&name=fuel.jpeg) ## Frequently Asked Questions Why are multistage pumps used?** Multistage pumps are centrifugal pumps (often vertically mounted) consisting of a series of impellers and casings mounted one after the other in series so that the discharge of one casing enters directly into the suction of the next. As each stage will only elevate the pressure by a set amount, a multistage pump will increase the pressure in each stage so that a final high pressure comes from the last stage.  For instance, let’s take an example of a 10-stage vertical pump, and each stage can increase the pressure by 0.5 bar. Liquid enters the first stage at atmospheric pressure and is elevated by 0.5 bar to enter the second stage, this then increased the pressure by 0.5 bar to enter the third stage at 1 bar. This is repeated until the liquid exits the final stage at 5 bar pressure. It’s important to realise that only the pressure is increased and not the flow rate as the stages is mounted in series. To increase the flow rate, you would need to mount the pumps in parallel.  ## Trusted By The Best ![Akzonobel2](https://144022160.fs1.hubspotusercontent-eu1.net/hub/144022160/hubfs/Logos/Akzonobel2.jpg?width=142&name=Akzonobel2.jpg) ![Ballard1](https://144022160.fs1.hubspotusercontent-eu1.net/hub/144022160/hubfs/Logos/Ballard1.jpg?width=142&name=Ballard1.jpg) ![biffa2](https://144022160.fs1.hubspotusercontent-eu1.net/hub/144022160/hubfs/Logos/biffa2.jpg?width=142&name=biffa2.jpg) ![Champion X1](https://144022160.fs1.hubspotusercontent-eu1.net/hub/144022160/hubfs/Logos/Champion%20X1.jpg?width=142&name=Champion%20X1.jpg) ![kemira2](https://144022160.fs1.hubspotusercontent-eu1.net/hub/144022160/hubfs/Logos/kemira2.jpg?width=142&name=kemira2.jpg) ![Vynova1](https://144022160.fs1.hubspotusercontent-eu1.net/hub/144022160/hubfs/Logos/Vynova1.jpg?width=142&name=Vynova1.jpg) ![Akzonobel2](https://144022160.fs1.hubspotusercontent-eu1.net/hub/144022160/hubfs/Logos/Akzonobel2.jpg?width=142&name=Akzonobel2.jpg) ![Ballard1](https://144022160.fs1.hubspotusercontent-eu1.net/hub/144022160/hubfs/Logos/Ballard1.jpg?width=142&name=Ballard1.jpg) ![biffa2](https://144022160.fs1.hubspotusercontent-eu1.net/hub/144022160/hubfs/Logos/biffa2.jpg?width=142&name=biffa2.jpg) ![Champion X1](https://144022160.fs1.hubspotusercontent-eu1.net/hub/144022160/hubfs/Logos/Champion%20X1.jpg?width=142&name=Champion%20X1.jpg) ![kemira2](https://144022160.fs1.hubspotusercontent-eu1.net/hub/144022160/hubfs/Logos/kemira2.jpg?width=142&name=kemira2.jpg) ![Vynova1](https://144022160.fs1.hubspotusercontent-eu1.net/hub/144022160/hubfs/Logos/Vynova1.jpg?width=142&name=Vynova1.jpg) ![Akzonobel2](https://144022160.fs1.hubspotusercontent-eu1.net/hub/144022160/hubfs/Logos/Akzonobel2.jpg?width=142&name=Akzonobel2.jpg) ![Ballard1](https://144022160.fs1.hubspotusercontent-eu1.net/hub/144022160/hubfs/Logos/Ballard1.jpg?width=142&name=Ballard1.jpg) ![biffa2](https://144022160.fs1.hubspotusercontent-eu1.net/hub/144022160/hubfs/Logos/biffa2.jpg?width=142&name=biffa2.jpg) ![Champion X1](https://144022160.fs1.hubspotusercontent-eu1.net/hub/144022160/hubfs/Logos/Champion%20X1.jpg?width=142&name=Champion%20X1.jpg) ![kemira2](https://144022160.fs1.hubspotusercontent-eu1.net/hub/144022160/hubfs/Logos/kemira2.jpg?width=142&name=kemira2.jpg) ![Vynova1](https://144022160.fs1.hubspotusercontent-eu1.net/hub/144022160/hubfs/Logos/Vynova1.jpg?width=142&name=Vynova1.jpg) ![Akzonobel2](https://144022160.fs1.hubspotusercontent-eu1.net/hub/144022160/hubfs/Logos/Akzonobel2.jpg?width=142&name=Akzonobel2.jpg) ![Ballard1](https://144022160.fs1.hubspotusercontent-eu1.net/hub/144022160/hubfs/Logos/Ballard1.jpg?width=142&name=Ballard1.jpg) ![biffa2](https://144022160.fs1.hubspotusercontent-eu1.net/hub/144022160/hubfs/Logos/biffa2.jpg?width=142&name=biffa2.jpg) ![Champion X1](https://144022160.fs1.hubspotusercontent-eu1.net/hub/144022160/hubfs/Logos/Champion%20X1.jpg?width=142&name=Champion%20X1.jpg) ![kemira2](https://144022160.fs1.hubspotusercontent-eu1.net/hub/144022160/hubfs/Logos/kemira2.jpg?width=142&name=kemira2.jpg) ![Vynova1](https://144022160.fs1.hubspotusercontent-eu1.net/hub/144022160/hubfs/Logos/Vynova1.jpg?width=142&name=Vynova1.jpg) ![Akzonobel2](https://144022160.fs1.hubspotusercontent-eu1.net/hub/144022160/hubfs/Logos/Akzonobel2.jpg?width=142&name=Akzonobel2.jpg) ![Ballard1](https://144022160.fs1.hubspotusercontent-eu1.net/hub/144022160/hubfs/Logos/Ballard1.jpg?width=142&name=Ballard1.jpg) ![biffa2](https://144022160.fs1.hubspotusercontent-eu1.net/hub/144022160/hubfs/Logos/biffa2.jpg?width=142&name=biffa2.jpg) ![Champion X1](https://144022160.fs1.hubspotusercontent-eu1.net/hub/144022160/hubfs/Logos/Champion%20X1.jpg?width=142&name=Champion%20X1.jpg) ![kemira2](https://144022160.fs1.hubspotusercontent-eu1.net/hub/144022160/hubfs/Logos/kemira2.jpg?width=142&name=kemira2.jpg) ![Vynova1](https://144022160.fs1.hubspotusercontent-eu1.net/hub/144022160/hubfs/Logos/Vynova1.jpg?width=142&name=Vynova1.jpg) ![fuel](https://www.crestpumps.co.uk/hs-fs/hubfs/fuel.jpeg?width=300&name=fuel.jpeg) ## DON’T JUST TAKE OUR WORD FOR IT *Crest answer our questions promptly, and always help us out when we need to source items quickly!* RACHAEL STARTINOzo Innovations ## Talk to us Contact us today for your chemical pump solutions that will minimise downtime and maximise energy efficiency. ```json { "@context" : "https://schema.org", "@type" : "Organization", "address" : { "@type" : "PostalAddress", "addressCountry" : "United Kingdom", "addressLocality" : "New Milton", "addressRegion" : "Hampshire", "postalCode" : "BH25 5NN", "streetAddress" : "7 Queensway" }, "knowsLanguage" : "en_GB", "logo" : { "@type" : "ImageObject", "url" : "https://144022160.fs1.hubspotusercontent-eu1.net/hubfs/144022160/Branding/Crest-Pumps-Logo-Small-2025.png" }, "name" : "Crest Pumps Ltd", "url" : "https://www.crestpumps.co.uk/pumps/other-pumps/racm" } ```