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    SENTRY Pulsation Dampeners & Surge Suppressors Remove Up To 99% Of System Shock

    Positive Displacement (PD) pumps create pulsation and hydraulic shock due to the reciprocating nature of their stroking action, potentially damaging the entire pumping system.

    Blacoh's SENTRY® Pulsation Dampeners and Surge Suppressors remove virtually all hydraulic shock, enhancing all-around performance and reliability of fluid flow in industrial and chemical transfer applications.


    • Whether a piston, plunger, air diaphragm, peristaltic, gear, or diaphragm metering pump, a SENTRY Pulsation Dampener placed at the pump's discharge will produce a near steady fluid flow up to 99% pulsation and vibration free.
    • Protects pipes, valves, fittings, meters, and in-line instrumentation from destructive pulsations, surges, cavitation, thermal expansion, and water hammer.
    • Creates steady and continuous flow when dosing, blending or proportioning additives
    • Ensures accuracy, longevity, and repeatability of in-line meters
    • Enables uniform application of material in spraying and coating systems
    • Reduces product agitation, foaming, splashing and degradation of product
    • Provides liquid energy storage for emergency valve closure and other equipment shutdown
    • Reduces overall energy cost with continuous flow, rather than start/ stop flow
    • Operates as a reservoir for make-up fluid


    • Sizes available for all positive displacement pumps with discharge sizes from 1/8" (3.18mm) to 6" (152.4mm)
    • Simple, reliable design and quick installation
    • Easy in-line maintenance
    • Pressure ranges up to 4000 PSI (276 BAR) available from stock
    • Temperature ranges from -60°F to +400°F (-51°C to +205°C) available from stock
    • Custom models available up to 100 gallons (378.5L) and 25,000 PSI (1724 BAR)
    • Bodies available in a full range of chemically resistant materials
    • Bladders available for even the most corrosive application