Cast SteelLiftCheckValve FlangedPN25/40

This lifttype check valve is engineered for heavy industrial usage where durability, highpressure rating and dependable oneway flow are required. With a cast steel body, stainlesssteel disc and spring, and flanged connections rated for PN25/40 service, it is ideal for environments such as steam, utilities, large pumps or chemical plants.

Technical Data:

• Body: Cast steel (e.g., ASME WCB / DIN equivalent) offering high strength under pressure and temperature.
• Disc & Spring: Stainless steel internals for corrosion resistance and long service life.
• End Connections: Flanged, PN25/PN40 rating (approx 25bar / 40bar nominal), full face as per standard (e.g., DIN 3202F1).
• Seat / Gasket: Graphite gasket recommended for high temperature use; metal or metalbacked seats.
• Temperature Range: 20°C to +450°C typical for this class under standard trim.
• Size Range: Common sizes DN50 (2) up to perhaps DN150 (6) in this rating band.
• Flow Direction & Installation: Designed for horizontal flow; vertical installation may be permitted if specified by manufacturer.
• Functionality: The disc lifts off its seat on forward flow; when flow reverses or falls below cracking pressure the disc drops back to seal, preventing backflow.

Highlights:

• Tailored for highduty service with elevated pressure and temperature capability.
• Longlife performance provided by stainless internals and robust body.
• Flanged format facilitates installation in large pipework systems and allows easier maintenance.

Typical Applications:
Large bore pump discharge lines, steam return loops, chemical feed systems or industrial processes where highpressure nonreturn is critical.