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Surge Suppressors for Pumps

Due to the reciprocating nature of their stroking action, air operated double diaphragm (AODD) pumps often create pulsation and hydraulic shock that can damage the entire fluid transfer system. Surge suppressors help smooth product flow and reduce the "hammer" effect that AODD pumps are known for. By reducing this effect, you can greatly increase the life of your pump. Pumping Solutions Inc. offers an array of surge suppressors to fit most AODD pumps. If you’re not sure which surge suppressor model is right for your application, feel free to contact us. Our expert team will help you select a surge suppressor that matches your unique requirements. Find the surge suppressor you need using the configurator below, or request a quote

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We offer Blacoh surge suppressors in a range of sizes, materials, and capacities to meet your needs. Designed to remove hydraulic shock and vibration, these surge suppressors enhance all-around pump performance and reliability in all fluid flow applications.

  • Available in sizes ranging from 0.38” (10mm) to 3” (80mm) inlet size
  • Stainless steel, aluminum, or polypropylene housings
  • Buna-N, PTFE, or polypropylene seals
  • Available in capacities from 10 in.3 (0.16 L3) to 1,155 in.3 (18.93 L3)
  • Adjustable or automatic air controls
  • Max. pressure up to 150 psi (10.3 bar); varies by model

Blacoh Sentry Surge Suppressors

Blacoh’s Sentry line of surge suppressors are designed to minimize or eliminate hydraulic shock and significantly improve the overall performance and reliability of your system.
No matter what type of pump you use—air diaphragm, diaphragm metering, gear, piston, plunger, peristaltic—a Sentry surge suppressor can create a near steady fluid flow (up to 99% pulsation and vibration free). Pumps and other system components will perform more efficiently and last longer with a surge suppressor installed.
Sentry surge suppressors feature simple, reliable designs for quick installation and easy in-line maintenance. Automatic or manually adjustable air controls. See individual product listings for full specifications.

Benefits of A Surge Suppressor

  • Reduces or eliminates potentially destructive pulsations, surges, cavitation, thermal expansion, and water hammer than can damage pipes, valves, fittings, and inline instrumentation.
  • Removes hose motion that can abrade and shorten hose life.
  • Protects inlet components from vibration and fatigue.
  • Helps maintain a steady, continuous flow for dosing, blending, or proportioning additives.
  • Ensures the accuracy and repeatability of inline meters; extends working life.
  • Enables more uniform application of material when used in spraying/coating systems.
  • Reduces agitation, foaming, and splashing that can lead to fluid degradation.
  • Provides liquid energy storage in the event of emergency valve closure or other equipment shutdown.
  • Continuous flow uses considerably less energy compared to start-stop flow.
  • Can operate as a reservoir for makeup fluid.

Request a quote or order the surge suppressor you need today. Contact Pumping Solutions for more information.


Not all items are stocked in a local warehouse and may ship directly from the factory.

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