Douglas Chero Forged Piston Check Valves – ½” to 2”, Class 150 to 2500, A105N/F316L/LF2/F22

Douglas Chero forged piston check valves are precision-engineered for non-return flow protection in high-pressure pipelines. Built in Italy using high-grade forged materials, these valves are designed to prevent reverse flow in process systems handling steam, gas, oil, and corrosive fluids. The piston-type internal design provides tight shut-off and consistent performance under variable pressure conditions. Available in sizes from ½” to 2” and pressure ratings from Class 150 to Class 2500, these valves are manufactured in A105N carbon steel, F316L stainless steel, LF2 for low-temperature applications, and F22 alloy steel for high-temperature and high-pressure service. With Reduced Bore (RD) and Full Bore (FB) options and end connections including Raised Face (RF), Threaded (NPT), and Socket Weld (SW), they meet international standards for performance and reliability. These check valves are ideal for upstream, refining, power generation, and chemical service lines.

Specifications:

– Manufacturer: Douglas Chero, Italy
– Valve Type: Forged Piston Check Valve
– Size Range: ½” to 2”
– Pressure Classes:
 • Class 150
 • Class 300
 • Class 600
 • Class 800
 • Class 1500
 • Class 2500
– Body Materials:
 • A105N – Forged Carbon Steel
 • F316L – Forged Stainless Steel
 • LF2 – Forged Low-Temperature Carbon Steel
 • F22 – Forged Chrome-Moly Alloy Steel
– End Connections:
 • RF – Raised Face Flanged
 • NPT – Threaded (ASME B1.20.1)
 • SW – Socket Weld (ASME B16.11)
– Bore Options:
 • Reduced Bore (RD)
 • Full Bore (FB)
– Design Features:
 • Piston-type non-return mechanism
 • Bolted bonnet construction
 • Renewable seat design
 • Designed for vertical or horizontal installation
– Compliance Standards:
 • API 602
 • ASME B16.34
 • API 598 (Testing)
 • MSS SP-25 (Marking)
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