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Bronze Swing Check Valve - 840/846M Series

Bronze Swing Check Valve - 840/846M Series

A check valve is used to check the undesired return flow in a system, it allows flow in just one direction.  Cryogenic check valves are available in different sizes for safe and efficient functioning.

840 Series – Bronze Swing Check Valves - Soft Seated, Threaded, Sil Brazed Ends, Back Brazed Pipe Nipples, 400 PSIG Cold Working Pressure

846M Series - Bronze Swing Check Valves - Metal Seated, Threaded, Sil Brazed Ends, Back Brazed Pipe Nipples, 600 PSIG Cold Working Pressure 

Outstanding features :

  • Y pattern design
  • Can be installed in line permanently and serviced from the top
  • Ideal to prevent backflow in cryogenic systems.
  • Bronze body and rugged construction for a longer life
  • Higher CV
  • Size from ½” to 2”
  • Threaded FNPT ends or SBT (Sil brazed Tube)
    • SCH-80: increment from 1” to 6”, threaded back brazed pipe nipples
    • SCH-40: increment from 1” to 6”, threaded back brazed pipe nipples
    • SCH-10 : increment from 1” to 6”, threaded back brazed pipe nipples
  • Temperature ranges : -325°F to +150°F (-196°C to +65°C)
  • Pressure range : 400 PSIG for 840 series,

               600 PSIG for 846 series

Note: Should not be used for reciprocating gas service