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    17 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
    260200 psi @ 70° F1.25-20 to 2502 1/8"Horizontal, Vertical125
    		Air, Argon, Helium, Krypton, Neon, Water, XenonBronzeBuna-N
    		5023K31000000
    2 1/2 100200 psi @ 70° F1.25-20 to 2502 1/8"Horizontal, Vertical125
    		Air, Argon, Helium, Krypton, Neon, Water, XenonBronzeBuna-N
    		5023K3200000
    3 170200 psi @ 70° F1.25-20 to 2502 1/4"Horizontal, Vertical125
    		Air, Argon, Helium, Krypton, Neon, Water, XenonBronzeBuna-N
    		5023K33000000
    4 340200 psi @ 70° F1.25-20 to 2502 1/2"Horizontal, Vertical125
    		Air, Argon, Helium, Krypton, Neon, Water, XenonBronzeBuna-N
    		5023K44000000
    5 520200 psi @ 70° F1.25-20 to 2502 3/4"Horizontal, Vertical125
    		Air, Argon, Helium, Krypton, Neon, Water, XenonBronzeBuna-N
    		5023K45000000
    6 850200 psi @ 70° F1.25-20 to 2503"Horizontal, Vertical125
    		Air, Argon, Helium, Krypton, Neon, Water, XenonBronzeBuna-N
    		5023K46000000
    8 1,600200 psi @ 70° F1.25-20 to 2503 3/4"Horizontal, Vertical125
    		Air, Argon, Helium, Krypton, Neon, Water, XenonBronzeBuna-N
    		5023K47000000
    10 2,400200 psi @ 70° F1.25-20 to 2504 1/4"Horizontal, Vertical125
    		Air, Argon, Helium, Krypton, Neon, Water, XenonBronzeBuna-N
    		5023K51000000
     

    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
    2110200 psi @ 70° F125 psi @ 353° F1-20 to 4058"Horizontal6"45/8"4 3/4"NoRemovable CapASTM A126 Class B, MSS SP-71Air, Steam, WaterBronzeBronze8200T110000000
    2 1/2 193200 psi @ 70° F125 psi @ 353° F1-20 to 4058 1/2"Horizontal7"43/4"5 1/2"NoRemovable CapASTM A126 Class B, MSS SP-71Air, Steam, WaterBronzeBronze8200T12000000
    3 292200 psi @ 70° F125 psi @ 353° F1-20 to 4059 1/2"Horizontal7 1/2"43/4"6"NoRemovable CapASTM A126 Class B, MSS SP-71Air, Steam, WaterBronzeBronze8200T13000000
    4 468200 psi @ 70° F125 psi @ 353° F1-20 to 40511 1/2"Horizontal9"83/4"7 1/2"NoRemovable CapASTM A126 Class B, MSS SP-71Air, Steam, WaterBronzeBronze8200T14000000
    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, WaterIronBronze8200T1500000000
    6 1,060200 psi @ 70° F125 psi @ 353° F1-20 to 40514"Horizontal11"87/8"9 1/2"NoRemovable CapASTM A126 Class B, MSS SP-71Air, Steam, WaterIronBronze8200T1600000000
    8 1,880200 psi @ 70° F125 psi @ 353° F1-20 to 40519 1/2"Horizontal13 1/2"83/4"11 3/4"NoRemovable CapASTM A126 Class B, MSS SP-71Air, Steam, WaterIronBronze8200T1700000000
     

    Arresters for Flammable Vapors

    Image of Product. Front orientation. Flame Arresters. Arresters for Flammable Vapors.
    Minimize fire hazard from flammable vapors. Mount an arrester to your vent pipe to stop flames from traveling back into your tank. If the ambient temperature reaches 165° F, the fusible links melt, and the cover closes to block flames from the arrester.
    Replacement Fusible Links—To reuse the arrester, replace the fusible links (sold separately).
    Flame Arresters
    Replacement
    Fusible Links
    Pipe
    Size
    Thread
    Type
    Gender
    Material
    Certification
    Each
    Each
    2
    		NPT
    		FemaleAluminum, Cast IronUL Listed
    		1206K810000000001206K85000000
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