Minimum Pressure Check Valves - 419

Minimum Pressure Check Valves - 419 Minimum Pressure Check Valves are control valves typically suitable for application on compressors. Design Minimum pressure check valves are spring loaded pressure control valves with an inbuilt check (non-return) valve. They are usually fitted to the AIR/OIL separator tank. Valve Opening The valve opens when the increasing inlet pressure exceeds the adjusted opening pressure. Further increasing the pressure causes the piston to progressively open until the output of the compressor flows through the valve at the flowing pressure required. The valve size is selected to suit the flow required at the specified flowing pressure and pressure drop. Valve Closing If the demand for air is such that the pressure at the valve inlet decreases to the specified minimum pressure, the valve will close to a position such that the flow through the valve will be equal to the flow produced by the compressor. If there is a back pressure down stream of the valve which is greater than the inlet pressure, the check valve will close. For more information on the Minimum Pressure Check Valves please contact us or visit our website

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