SENTINEL Diaphragm Pressure Relief Valves From Blacoh

SENTINEL, Diaphragm, Pressure Relief Valves, Blacoh, Fluid, Control

SENTINEL diaphragm pressure relief valves are designed to protect pumping systems from over pressure damage caused by defective equipment or a blockage in the pump system line. Robust construction ensures reliability in the rigorous service of municipal and industrial applications. Wetted materials include: PVC, CPVC, PP, PVDF, PTFE, 316 SS, A 20 and Hastelloy C. Available sizes: 1/4" - 4" depending on model.

SENTINEL Benefits:

  • High Reliability / Low Cost

  • Compact Size for OEM Applications

  • Adjustable 10 - 250 psi

  • Optional 350 psi Rated Valve

  • 3 Port, 2 Port & 90° Configuration

  • Robust, Machined Construction

  • Vulcanized PTFE/EPDM Diaphragm

  • Wide Range of Materials

SENTINEL diaphragm pressure relief valves operate when the pressure in the pumping system exceeds the preset pressure of the valve. The diaphragm is held against the valve seat by an internal spring. When the preset pressure is exceeded the diaphragm is forced up and the system fluid flows out the relief port, back to the system fluid tank or to the suction side of the pump. The valves are pre-set at 50 psi, however they are field adjustable from 10 - 150 psi, (optional 350 psi) via the adjustment screw. The relief valve should be set approximately 15 psi higher than the system pressure. Installation should be made as close to the pump as possible, without any valves or accessories between the relief valve and the pump. Consult your pump manufacturer for recommendations.

Blacoh General Brochure

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