Blacoh J2420ND-AB Pulsation Dampener

Blacoh J2420ND-AB Pulsation Dampener is a Blacoh Industries device designed to absorb the energy of pulsating flow from positive-displacement pumps and to mitigate hydraulic shocks in piping networks. The model is listed as J2420ND-AB (MFR # J2420ND-AB) and distributor listings identify it as discontinued. Blacoh dampeners are engineered to suppress pulsation, vibration, and pressure spikes while preserving smooth flow, helping protect pumps, valves, and instrumentation in municipal and industrial pumping applications. This dampener appears within Blacoh’s SENTRY family of pulsation dampeners, which offers a range of bladder materials—Aflas, Buna-N, EPDM, Hypalon, Neoprene, PTFE, Santoprene, Silicone (Food Grade), Viton—and, where applicable, Series 2420 variants that utilize stainless-steel bellows for compatibility with demanding fluids and higher-temperature service. Dampeners in this lineage support various air-control configurations, including automatic and adjustable options, as part of Blacoh’s surge-management approach to reduce start-stop shocks and extend pump life in challenging industrial environments.