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 40 Bar, it will prevent back flow by sealing when any pressure/flow comes from the wrong direction. This check valve has a cracking presure 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. 

Model Size DN (mm) Media Pressure Media Temperature
PCS-04 ½” 15 0 to 40 BAR 0°C to 180°C
PCS-05 ¾” 20 0 to 40 BAR 0°C to 180°C
PCS-06 1” 25 0 to 40 BAR 0°C to 180°C
PCS-07 1 ¼” 32 0 to 40 BAR 0°C to 180°C
PCS-08 1 ½” 40 0 to 40 BAR 0°C to 180°C
PCS-09 2” 50 0 to 40 BAR 0°C to 180°C

Stainless Steel Piston Check Valve Operation 

Stainless Steel Piston Check Valve Temperature vs Pressure

Size 1/2" to 2" BSP
Body 316 Stainless Steel
Seat PTFE
Pressure Range 0 to 40 BAR
Temperature 0 to 180°C

Stainless Steel Piston Check Valve

Number Name Material
1 Body ASTM A351 CF8M
2 Nut SS304
3 Spring Washer SS304
4 Washer SS304
5 Seat Ring PTFE
6 Plug SS316
7 Spring SS304
8 Gasket Packing PTFE
9 Cap ASTM A351 CF8M

Stainless Steel Piston Check Valve

Model Size A B C
PCS-04 ½” 65 46 19
PCS-05 ¾” 80 58 23
PCS-06 1” 90 69 27
PCS-07 1 ¼” 105 75 32
PCS-08 1 ½” 120 85 41
PCS-09 2” 140 98 50

All dimensions in mm unless shown otherwise. 

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 40 Bar, it will prevent back flow by sealing when any pressure/flow comes from the wrong direction. This check valve has a cracking presure 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. 

Model Size DN (mm) Media Pressure Media Temperature
PCS-04 ½” 15 0 to 40 BAR 0°C to 180°C
PCS-05 ¾” 20 0 to 40 BAR 0°C to 180°C
PCS-06 1” 25 0 to 40 BAR 0°C to 180°C
PCS-07 1 ¼” 32 0 to 40 BAR 0°C to 180°C
PCS-08 1 ½” 40 0 to 40 BAR 0°C to 180°C
PCS-09 2” 50 0 to 40 BAR 0°C to 180°C

Stainless Steel Piston Check Valve Operation 

Stainless Steel Piston Check Valve Temperature vs Pressure

Size 1/2" to 2" BSP
Body 316 Stainless Steel
Seat PTFE
Pressure Range 0 to 40 BAR
Temperature 0 to 180°C

Stainless Steel Piston Check Valve

Model Size A B C
PCS-04 ½” 65 46 19
PCS-05 ¾” 80 58 23
PCS-06 1” 90 69 27
PCS-07 1 ¼” 105 75 32
PCS-08 1 ½” 120 85 41
PCS-09 2” 140 98 50

All dimensions in mm unless shown otherwise. 

Stainless Steel Piston Check Valve

Number Name Material
1 Body ASTM A351 CF8M
2 Nut SS304
3 Spring Washer SS304
4 Washer SS304
5 Seat Ring PTFE
6 Plug SS316
7 Spring SS304
8 Gasket Packing PTFE
9 Cap ASTM A351 CF8M