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.
• Revolution Pulsation Dampener
• New CPVC construction and threaded housings are ideal for corrosive environments
• XP Pulsation Dampener
• Designed for high-pressure applications up to 4000 PSI (276 BAR)
• 2.5 Gal. Aluminum Pulsation Dampener
• Low-cost, high-quality Pulsation Dampener for 2" aluminum air diaphragm pumps
• Socket Weld Series
• Available in PVC and CPVC from 1/2" to 2” connections for hard to seal chemicals like sodium hydrochlorite
• 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