GO Piston Check Valve 316 Stainless 1/2" to 2" PCS Range



GO Piston Check Valve 316 Stainless 1/2" to 2" PCS Range

BSP Threaded 316 Stainless Steel piston check valve. Can be mounted in any direction due to the piston been held in place by a spring. Rated to 54 BAR (800 PSI) it will prevent back flow by sealing when any pressure/flow comes from the wrong direction. This check valve has a cracking pressure of a few psi (depends upon the size) as it needs to compress the spring enough to allow flow. PTFE seat for temperatures up to 180°C. 

  • Size 1/2" to 2" BSP
  • Body 316 Stainless Steel
  • Seat PTFE
  • Pressure Range 0 to 54 BAR
  • Temperature 0 to 180°C
Model Size DN (mm) Media Pressure Media Temperature
PCS-04 ½” 15 0 to 54 BAR 0°C to 180°C
PCS-05 ¾” 20 0 to 54 BAR 0°C to 180°C
PCS-06 1” 25 0 to 54 BAR 0°C to 180°C
PCS-07 1 ¼” 32 0 to 54 BAR 0°C to 180°C
PCS-08 1 ½” 40 0 to 54 BAR 0°C to 180°C
PCS-09 2” 50 0 to 54 BAR 0°C to 180°C

A check valve, clack valve, non-return valve or one-way valve is a valve that normally allows fluid to flow through it in only one direction.

Check valves are two-port valves, meaning they have two openings in the body, one for fluid to enter and the other for fluid to leave. There are various types of check valves used in a wide variety of applications.  Although they are available in a wide range of sizes and costs, check valves generally are very small, simple, or inexpensive.

Check valves work automatically and most are not controlled by a person or any external control; accordingly, most do not have any valve handle or stem. The bodies (external shells) of most check valves are made of plastic or metal.

An important concept in check valves is the cracking pressure, which is the minimum upstream pressure at which the valve will operate. Typically the check valve is designed for and can therefore be specified for a specific cracking pressure.

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