Cast Iron Check Valve Flanged PN16 EPDM Seat Lever & Weight

This variant of the cast iron PN16 check valve adds a lever-and-weight mechanism to the swing disc, providing more reliable closure under low flow or return conditions. Ideal for systems where backflow must be strictly prevented and where flow velocity may vary.

Technical Data

• Body Material: Cast iron (ENGJL series)
• Seat Material: EPDM seal ring for water and mild fluid compatibility
• End Connection: PN16 flanged ends conforming to ISO/EN flange standards
• Temperature Range: 10°C to +120°C (typical for EPDM)
• Pressure Rating: PN16 ( 16 bar )
• Mechanism: Swing disc operated by lever and weight assembly, ensuring disc closes quickly even at low reverse pressure
• Sizes: Generally available DN50 to DN300 depending on lever size

Key Features

• Lever & weight assist ensures dependable closure in sluggish or lowvelocity flow conditions.
• EPDM seat offers reliable sealing in water and HVAC services.
• Cast iron body keeps cost manageable for large pipe applications.
• Flanged PN16 installation supports standard utility piping systems.

Typical Applications

• Systems where return flow might be slow or intermittent (e.g., pumping systems, sump return lines).
• Large waterdistribution or HVAC loops where nonreturn protection must be assured.
• Institutional or industrial piping where minimal maintenance is desired.