This Forged Steel Piston Check Valve (Class 2500LB) combines lift-type disc action and bolted cover construction for critical high-pressure systems requiring zero backflow. Engineered with ASTM A105 forged steel and socket weld ends (ASME B16.11), it delivers:
Ultra-Rapid Closure: Piston-guided lift disc shuts in <0.3 seconds, preventing water hammer in steam/O&G pipelines.
High-Pressure Integrity: Rated for 420 bar (PN420), tested per API 598 Class VI leakage standards.
Maintenance Efficiency: Bolted bonnet allows in-line seat repair.
Socket Weld Advantage: Ideal for compact spaces (refineries, offshore platforms).
Key Applications:
▶️ High-pressure steam turbine bypass lines
▶️ Hydraulic shutoff systems in power generation
▶️ Critical pump discharge in offshore oil rigs