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    2 Products

    Flange-Mount Check Valves

    Sandwich these valves between two ANSI flanges for backflow prevention at a fraction of the weight of flanged check valves and a reduced pipeline footprint. ANSI flanges are sold separately. All valves open to allow flow in one direction and close when flow stops or reverses.
    Cast Iron Body
    Image of System. Shown with Flanges (Not Included). Front orientation. Contains MultipleImages. Check Valves. Flange-Mount Check Valves.
    Image of Product. Front orientation. Check Valves. Flange-Mount Check Valves.

    Shown with Flanges (Not

    Included)

    Flow Coefficient (Cv)—Flow coefficient (Cv) is the amount of water (in gallons per minute) at 60° F that will flow through a fully open valve with a difference of 1 psi between the inlet and the outlet.
    Pipe
    Size
    Flow Coefficient
    (Cv)
    Max. Pressure
    @ Temp.
    Min. Opening
    Pressure, psi
    Temp. Range,
    ° F
    End-to-End
    Lg.
    Mounting Position
    For Flange
    Class
    For Use With
    Disc
    Material
    Seal
    Material
    Each
    Flanged × Flanged
    5 520200 psi @ 70° F1.25-20 to 2502 3/4"Horizontal, Vertical125
    		Air, Argon, Helium, Krypton, Neon, Water, XenonBronzeBuna-N
    		5023K450000000
     

    Flanged Check Valves

    Bolt these valves to ANSI flanges. They open to allow flow in one direction and close when flow stops or reverses. All have a removable cap that provides easy access to internal components for maintenance.
    Cast Iron Body
    Image of Product. Front orientation. Check Valves. Flanged Check Valves.
    Flow Coefficient (Cv)—Flow coefficient (Cv) is the amount of water (in gallons per minute) at 60° F that will flow through a fully open valve with a difference of 1 psi between the inlet and the outlet.
    Pipe
    Size
    Flow Coefficient
    (Cv)
    Max. Pressure
    @ Temp.
    Max. Steam Pressure
    @ Temp.
    Min. Opening
    Pressure, psi
    Temp. Range,
    ° F
    End-to-End
    Lg.
    Mounting
    Position
    Flange
    OD
    No. of Bolt
    Holes
    Bolt Hole
    Size
    Bolt Circle
    Dia.
    Bolts
    Included
    Includes
    Specs. Met
    For Use With
    Disc
    Material
    Seal
    Material
    Each
    Flanged × Flanged—Pressure Class 125
    5 735200 psi @ 70° F125 psi @ 353° F1-20 to 40513"Horizontal10"83/4"8 1/2"NoRemovable CapASTM A126 Class B, MSS SP-71Air, Steam, WaterIronBronze8200T15000000000
     
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