Bonney Forge Forged Piston Check Valves – ½” to 2”, Class 150 to 2500, A105N/F316L/LF2

Bonney Forge forged piston check valves are engineered for non-return flow control in high-pressure, high-temperature systems where space and performance are critical. Offered in compact ½” to 2” sizes and pressure classes ranging from 150 to 2500, these valves utilize a piston-guided design to provide a more controlled and consistent seating action compared to conventional lift check valves. Manufactured from top-grade forged materials including A105N carbon steel, F316L stainless steel, and LF2 low-temperature carbon steel, these valves are ideal for severe service environments. Bore options include Reduced Bore (RD) and Full Bore (FB), and end connections include RF (Raised Face), NPT (Threaded), SW (Socket Weld), and plain end, offering excellent flexibility for installation. Compliant with international design and testing standards, Bonney Forge piston check valves are widely used in oil & gas, petrochemical, and power generation applications.

Specifications:

– Manufacturer: Bonney Forge, 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
– End Connections:
 • RF – Raised Face Flanged
 • NPT – Threaded (ASME B1.20.1)
 • SW – Socket Weld (ASME B16.11)
 • Plain End – For direct weld fit
– Bore Options:
 • Reduced Bore (RD)
 • Full Bore (FB)
– Design Standards:
 • API 602
 • ASME B16.34
 • API 598 (Testing)
 • MSS SP-25 (Marking)
– Design Features:
 • Piston-guided non-return function
 • Compact forged body
 • Spring-loaded or gravity-assisted closure (design dependent)
 • Vertical or horizontal installation
– Applications:
 • High-pressure process lines
 • Steam, gas, and hydrocarbon systems
 • Refineries
 • Petrochemical plants
 • Power and utility systems
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