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    10 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
    4 340200 psi @ 70° F1.25-20 to 2502 1/2"Horizontal, Vertical125
    		Air, Argon, Helium, Krypton, Neon, Water, XenonBronzeBuna-N
    		5023K440000000
     

    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
    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, WaterBronzeBronze8200T140000000
     

    Flange-Mount Check Valves for Oil and Fuel

    Install these valves between ANSI flanges. ANSI flanges are sold separately. All valves open to allow flow in one direction and close when flow stops or reverses. Body is 316 stainless steel for excellent corrosion resistance.
    316 Stainless Steel Body
    Image of System. Shown with Flanges (Not Included). Front orientation. Contains MultipleImages. Check Valves. Flange-Mount Check Valves for Oil and Fuel.
    Image of Product. Front orientation. Check Valves. Flange-Mount Check Valves for Oil and Fuel.

    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
    Specs. Met
    For Use With
    Disc Material
    Seal Material
    Each
    Flanged × Flanged
    4 291720 psi @ 70° F1.25-20 to 1,0002 7/8"Horizontal, Vertical150, 300
    		API Std 594, API Std 598Butane, Diesel Fuel, Fuel Oil, Gasoline, Kerosene, Natural Gas, Oil, Propane316 Stainless Steel
    		316 Stainless Steel
    		7767K340000000
     

    Compact Flange-Mount Check Valves

    Less than half the end-to-end length of standard flange-mount check valves, these can be installed between ANSI flanges in pipelines with limited clearance. ANSI flanges are sold separately. Valves open to allow flow in one direction and close when flow stops or reverses. All have a 316 stainless steel body for excellent corrosion resistance.
    316 Stainless Steel Body—Spring-Loaded Piston
    Image of System. Shown with Flanges (Not Included). Front orientation. Contains MultipleImages. Check Valves. Compact Flange-Mount Check Valves.
    Image of Product. Front orientation. Check Valves. Compact 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
    Piston Material
    Spring Material
    Seal Material
    Each
    Flanged × Flanged
    4 144720 psi @ 100° F0.5-10 to 4003/8"Any Angle, Horizontal, Vertical150, 300
    		Air, Argon, Helium, Krypton, Neon, Water, Xenon316 Stainless Steel
    		316 Stainless Steel
    		Viton® Fluoroelastomer
    		1969N190000000
     

    Threaded Check Valves for Harsh Chemicals

    These valves open to allow flow in one direction and close when flow stops or reverses.
    PVC Body—Ball
    Image of Product. Front orientation. Check Valves. Threaded Check Valves for Harsh Chemicals, PVC Body—Ball.
    For Drinking Water—Valves for drinking water meet NSF/ANSI 61.
    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
    Color
    End-to-End
    Lg.
    Mounting Position
    Specs.
    Met
    Food Industry
    Std.
    For Use With
    Ball
    Material
    Seal Material
    Each
    NPT Female Inlet × NPT Female Outlet
    4 400150 psi @ 70° F1.535 to 140Dark Gray12 15/16"Horizontal, VerticalASTM D1784NSF/ANSI 61
    		Air, Butane, Carbon Dioxide, Citric Acid, Deionized Water, Diesel Fuel, Drinking Water, Ethanol, Ethylene Glycol, Hydrochloric Acid, Isopropyl Alcohol, Kerosene, Methanol (Methyl Alcohol), Mineral Spirits, Natural Gas, Oil, Oxygen, Phosphoric Acid, Propane, Salt Water, Soap Solutions, Sodium Hydroxide (Caustic Soda), Sodium Hypochlorite (Bleach), WaterPVC
    		Fluoroelastomer
    		4721K230000000
     
    CPVC Body—Ball
    Image of Product. Front orientation. Check Valves. Threaded Check Valves for Harsh Chemicals, CPVC Body—Ball.
    For Drinking Water—Valves for drinking water meet NSF/ANSI 61.
    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
    Color
    End-to-End
    Lg.
    Mounting Position
    Specs.
    Met
    Food Industry
    Std.
    For Use With
    Ball
    Material
    Seal Material
    Each
    NPT Female Inlet × NPT Female Outlet
    4 400150 psi @ 70° F1.535 to 190Dark Gray12 15/16"Horizontal, VerticalASTM D1784NSF/ANSI 61
    		Air, Butane, Carbon Dioxide, Citric Acid, Deionized Water, Diesel Fuel, Drinking Water, Hydrochloric Acid, Isopropyl Alcohol, Kerosene, Mineral Spirits, Natural Gas, Nitric Acid, Oxygen, Phosphoric Acid, Propane, Salt Water, Soap Solutions, Sodium Hydroxide (Caustic Soda), Sodium Hypochlorite (Bleach), Sulfuric Acid, WaterCPVC
    		Fluoroelastomer
    		4721K26000000000
     

    Heavy Duty Threaded Check Valves for Drinking Water

    For more durability than plastic, these valves have a metal body. They meet NSF/ANSI 61 for drinking water service. All open to allow flow in one direction and close when flow stops or reverses.
    Brass Body—Spring-Loaded Piston
    Image of Product. Front orientation. Check Valves. Heavy Duty Threaded Check Valves for Drinking Water.
    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
    Food Industry
    Std.
    For Use With
    Piston
    Material
    Spring Material
    Seal
    Material
    Each
    NPT Female Inlet × NPT Female Outlet
    4 225.4175 psi @ 180° F0.510 to 2105 7/16"Any Angle, Horizontal, VerticalNSF/ANSI 61
    		Drinking WaterPEI302 Stainless Steel
    		Buna-N
    		8517T350000000
     

    Floor Drain Check Valves

    Image of Product. Front orientation. Drain Check Valves.
    Put an end to water damage from backed-up sewers. To install, place a valve into your floor drain pipe and tighten the screws—the rubber collar will expand for proper fit. When water backs up, the rubber float will rise to seal off the drain. When water recedes, the float will drop for normal drainage.
    For Pipe
    Size
    Each
    4
    		2495K14000000

    Plastic Socket-Connect Check Valves

    Also known as backwater valves, these valves prevent backflow of sewage and wastewater in drain, waste, and vent systems. Insert unthreaded pipe into the socket ends and bond with primer and cement to create a permanent, leak-tight connection. Valves open to allow flow in one direction and close when flow stops or reverses. A removable cap provides easy access to internal components for maintenance.
    PVC Body—Swing
    Image of Product. Back orientation. Check Valves. Plastic Socket-Connect Check Valves, PVC Body—Swing.
    Image of Product. Front orientation. Check Valve Flappers. Plastic Socket-Connect Check Valves.

    Replacement

    Flappers

    Check Valves
    Replacement
    Flappers
    Pipe
    Size
    For Pipe
    Schedule
    Max. Pressure
    @ Temp.
    Min. Opening
    Pressure, psi
    Temp. Range,
    ° F
    Color
    End-to-End
    Lg.
    Mounting
    Position
    Features
    For Use
    With
    Pressure
    Class
    Disc
    Material
    Seal
    Material
    Each
    Each
    Socket Connect × Socket Connect
    4 40
    		Not Rated035 to 140White9 3/4"HorizontalRemovable CapWaterNot RatedPVC
    		PVC
    		4670K190000004670K33000000
     
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