Back Pressure Valves & Pressure Relief Valves

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SENTINEL™

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หมวดหมู่ : PIPE , FITTING & VALVES BLACOH

แบรนด์ : BLACOH

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Advantages

Unique flow stabilization technology improves flow, extends service life, and eliminates valve chatter.
 
Internal swiveling spring seat ensures spring force is applied evenly over the diaphragm for more consistent and complete valve closure.
 
Both plastic and metal valves feature a separate ring attachment for more uniform clamping load and improved seal performance.
 
Threaded connections on plastic valves eliminate the need for metal fasteners that can corrode.
 
 
Sizes and Materials
 
Sizes from 0.25” up to 2” with multiple port options.

Offered in PVC, Polypropylene, CPVC, PVDF, and 316L Stainless Steel with additional materials available on request.

PTFE diaphragms with EPDM and Viton optional on Pressure Relief Valves.

Spring pressures 5-50 psi, 5-150 psi, 5-250 psi and 50-350 psi.

NPT, BSP, socket weld, union and flange inlet options.

 
Dimensional Drawing

 

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Back pressure valves are designed to enhance pumping system performance by applying a continuous back pressure to the pump, while also acting as an anti-syphon valve.

Diaphragm back pressure valves apply positive discharge pressure to a metering pump system to improve the consistency of dosage rates by shielding the pump from fluctuating downstream pressure. The diaphragm is held against the valve seat by an internal spring. When the preset pressure is exceeded, the diaphragm is forced up and system fluid flows through the valve to the injection point.


Pressure relief valves are designed to protect pumping systems from over pressure damage caused by defective equipment or blockage in the pump system line.

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 of the relief port, back to the system fluid tank or to the suction side of the pump.

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