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    39 Products

    Easy-Install Threaded Check Valves for Harsh Chemicals

    To reduce installation time and allow for maintenance without detaching pipe connections, these valves have union fittings. The plastic body and fluoroelastomer seal provide excellent chemical resistance. Valves open to allow flow in one direction and close when flow stops or reverses.
    PVC Body—Ball
    Image of Product. Assembled View. Front orientation. Check Valves. Easy-Install Threaded Check Valves for Harsh Chemicals.
    Image of Product. Exploded View. Front orientation. Exploded view. Check Valves. Easy-Install Threaded Check Valves for Harsh Chemicals.

    Assembled View

    Exploded View

    PVC and CPVC valves come with unthreaded socket-connect female fittings in addition to the threaded NPT female fittings.
    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
    BSPP Female × BSPP Female
    1/2 6.3150 psi @ 70° F140 to 140Dark Gray4 1/4"Horizontal, VerticalASTM D1784—Butane, Kerosene, Liquid Carbon Dioxide, Natural Gas, Nitric Acid, Oxygen, Phosphoric Acid, Propane, Salt Water, Soap Solutions, WaterPVC
    		Fluoroelastomer
    		7909K910000000
    1 25150 psi @ 70° F140 to 140Dark Gray5 3/16"Horizontal, VerticalASTM D1784—Butane, Kerosene, Liquid Carbon Dioxide, Natural Gas, Nitric Acid, Oxygen, Phosphoric Acid, Propane, Salt Water, Soap Solutions, WaterPVC
    		Fluoroelastomer
    		7909K93000000
     
    NPT Female × NPT Female
    1/2 4.8150 psi @ 70° F140 to 140Dark Gray4 11/16"Horizontal, VerticalASTM D1784NSF/ANSI 61
    		Citric Acid, Diesel Fuel, Drinking Water, Ethylene Glycol, Hydrochloric Acid, Isopropyl Alcohol, Kerosene, Nitric Acid, Oil, Phosphoric Acid, Salt Water, Sodium Hypochlorite (Bleach), WaterPVC
    		Fluoroelastomer
    		4721K1300000
    3/47.7150 psi @ 70° F140 to 140Dark Gray4 3/4"Horizontal, VerticalASTM D1784NSF/ANSI 61
    		Citric Acid, Diesel Fuel, Drinking Water, Ethylene Glycol, Hydrochloric Acid, Isopropyl Alcohol, Kerosene, Nitric Acid, Oil, Phosphoric Acid, Salt Water, Sodium Hypochlorite (Bleach), WaterPVC
    		Fluoroelastomer
    		4721K1400000
    1 11150 psi @ 70° F140 to 140Dark Gray5 3/8"Horizontal, VerticalASTM D1784NSF/ANSI 61
    		Citric Acid, Diesel Fuel, Drinking Water, Ethylene Glycol, Hydrochloric Acid, Isopropyl Alcohol, Kerosene, Nitric Acid, Oil, Phosphoric Acid, Salt Water, Sodium Hypochlorite (Bleach), WaterPVC
    		Fluoroelastomer
    		4721K1500000
    1 1/4 25150 psi @ 70° F140 to 140Dark Gray6 1/4"Horizontal, VerticalASTM D1784NSF/ANSI 61
    		Citric Acid, Diesel Fuel, Drinking Water, Ethylene Glycol, Hydrochloric Acid, Isopropyl Alcohol, Kerosene, Nitric Acid, Oil, Phosphoric Acid, Salt Water, Sodium Hypochlorite (Bleach), WaterPVC
    		Fluoroelastomer
    		4721K16000000
    1 1/2 45150 psi @ 70° F140 to 140Dark Gray6 3/4"Horizontal, VerticalASTM D1784NSF/ANSI 61
    		Citric Acid, Diesel Fuel, Drinking Water, Ethylene Glycol, Hydrochloric Acid, Isopropyl Alcohol, Kerosene, Nitric Acid, Oil, Phosphoric Acid, Salt Water, Sodium Hypochlorite (Bleach), WaterPVC
    		Fluoroelastomer
    		4721K17000000
    2130150 psi @ 70° F140 to 140Dark Gray8 1/8"Horizontal, VerticalASTM D1784NSF/ANSI 61
    		Citric Acid, Diesel Fuel, Drinking Water, Ethylene Glycol, Hydrochloric Acid, Isopropyl Alcohol, Kerosene, Nitric Acid, Oil, Phosphoric Acid, Salt Water, Sodium Hypochlorite (Bleach), WaterPVC
    		Fluoroelastomer
    		4721K18000000
     
    CPVC Body—Ball
    Image of Product. Assembled View. Front orientation. Check Valves. Easy-Install Threaded Check Valves for Harsh Chemicals.
    Image of Product. Exploded View. Front orientation. Exploded view. Check Valves. Easy-Install Threaded Check Valves for Harsh Chemicals.

    Assembled View

    Exploded View

    PVC and CPVC valves come with unthreaded socket-connect female fittings in addition to the threaded NPT female fittings.
    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 × NPT Female
    1/2 4.8150 psi @ 70° F135 to 190Light Gray4 11/16"Horizontal, VerticalASTM D1784NSF/ANSI 61
    		Citric Acid, Diesel Fuel, Drinking Water, Hydrochloric Acid, Isopropyl Alcohol, Kerosene, Nitric Acid, Phosphoric Acid, Salt Water, Sodium Hypochlorite (Bleach), WaterCPVC
    		Fluoroelastomer
    		4810K31000000
    3/47.7150 psi @ 70° F135 to 190Light Gray4 3/4"Horizontal, VerticalASTM D1784NSF/ANSI 61
    		Citric Acid, Diesel Fuel, Drinking Water, Hydrochloric Acid, Isopropyl Alcohol, Kerosene, Nitric Acid, Phosphoric Acid, Salt Water, Sodium Hypochlorite (Bleach), WaterCPVC
    		Fluoroelastomer
    		4810K32000000
    1 11150 psi @ 70° F135 to 190Light Gray5 3/8"Horizontal, VerticalASTM D1784NSF/ANSI 61
    		Citric Acid, Diesel Fuel, Drinking Water, Hydrochloric Acid, Isopropyl Alcohol, Kerosene, Nitric Acid, Phosphoric Acid, Salt Water, Sodium Hypochlorite (Bleach), WaterCPVC
    		Fluoroelastomer
    		4810K33000000
    1 1/4 25150 psi @ 70° F135 to 190Light Gray6 1/4"Horizontal, VerticalASTM D1784NSF/ANSI 61
    		Citric Acid, Diesel Fuel, Drinking Water, Hydrochloric Acid, Isopropyl Alcohol, Kerosene, Nitric Acid, Phosphoric Acid, Salt Water, Sodium Hypochlorite (Bleach), WaterCPVC
    		Fluoroelastomer
    		4810K34000000
    1 1/2 45150 psi @ 70° F135 to 190Light Gray6 3/4"Horizontal, VerticalASTM D1784NSF/ANSI 61
    		Citric Acid, Diesel Fuel, Drinking Water, Hydrochloric Acid, Isopropyl Alcohol, Kerosene, Nitric Acid, Phosphoric Acid, Salt Water, Sodium Hypochlorite (Bleach), WaterCPVC
    		Fluoroelastomer
    		4810K35000000
    2130150 psi @ 70° F135 to 190Light Gray8 1/8"Horizontal, VerticalASTM D1784NSF/ANSI 61
    		Citric Acid, Diesel Fuel, Drinking Water, Hydrochloric Acid, Isopropyl Alcohol, Kerosene, Nitric Acid, Phosphoric Acid, Salt Water, Sodium Hypochlorite (Bleach), WaterCPVC
    		Fluoroelastomer
    		4810K36000000
     
    Polypropylene Body—Ball
    Image of Product. Assembled View. Front orientation. Check Valves. Easy-Install Threaded Check Valves for Harsh Chemicals.
    Image of Product. Exploded View. Front orientation. Exploded view. Check Valves. Easy-Install Threaded Check Valves for Harsh Chemicals.

    Assembled View

    Exploded View

    Polypropylene valves are more corrosion resistant than PVC or CPVC 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.
    Min. Opening
    Pressure, psi
    Temp. Range,
    ° F
    Color
    End-to-End
    Lg.
    Mounting Position
    Specs.
    Met
    For Use With
    Ball
    Material
    Seal Material
    Each
    NPT Female × NPT Female
    1/2 4.8150 psi @ 70° F135 to 160White4 11/16"Horizontal, VerticalASTM D4101Air, Ammonia, Butane, Carbon Dioxide, Citric Acid, Deionized Water, Ethanol, Ethylene Glycol, Isopropyl Alcohol, Kerosene, Methanol (Methyl Alcohol), Natural Gas, Oil, Oxygen, Phosphoric Acid, Salt Water, Soap Solutions, Sodium Hydroxide (Caustic Soda), WaterPolypropylene
    		Fluoroelastomer
    		4851K410000000
    3/47.7150 psi @ 70° F135 to 160White4 3/4"Horizontal, VerticalASTM D4101Air, Ammonia, Butane, Carbon Dioxide, Citric Acid, Deionized Water, Ethanol, Ethylene Glycol, Isopropyl Alcohol, Kerosene, Methanol (Methyl Alcohol), Natural Gas, Oil, Oxygen, Phosphoric Acid, Salt Water, Soap Solutions, Sodium Hydroxide (Caustic Soda), WaterPolypropylene
    		Fluoroelastomer
    		4851K42000000
    1 11150 psi @ 70° F135 to 160White5 3/8"Horizontal, VerticalASTM D4101Air, Ammonia, Butane, Carbon Dioxide, Citric Acid, Deionized Water, Ethanol, Ethylene Glycol, Isopropyl Alcohol, Kerosene, Methanol (Methyl Alcohol), Natural Gas, Oil, Oxygen, Phosphoric Acid, Salt Water, Soap Solutions, Sodium Hydroxide (Caustic Soda), WaterPolypropylene
    		Fluoroelastomer
    		4851K43000000
    1 1/2 45150 psi @ 70° F135 to 160White6 3/4"Horizontal, VerticalASTM D4101Air, Ammonia, Butane, Carbon Dioxide, Citric Acid, Deionized Water, Ethanol, Ethylene Glycol, Isopropyl Alcohol, Kerosene, Methanol (Methyl Alcohol), Natural Gas, Oil, Oxygen, Phosphoric Acid, Salt Water, Soap Solutions, Sodium Hydroxide (Caustic Soda), WaterPolypropylene
    		Fluoroelastomer
    		4851K44000000
    2130150 psi @ 70° F135 to 160White8 1/8"Horizontal, VerticalASTM D4101Air, Ammonia, Butane, Carbon Dioxide, Citric Acid, Deionized Water, Ethanol, Ethylene Glycol, Isopropyl Alcohol, Kerosene, Methanol (Methyl Alcohol), Natural Gas, Oil, Oxygen, Phosphoric Acid, Salt Water, Soap Solutions, Sodium Hydroxide (Caustic Soda), WaterPolypropylene
    		Fluoroelastomer
    		4851K45000000
     

    Union-Insert Check Valves

    To reduce installation time and allow for maintenance without detaching pipe connections, these valves insert into a union fitting. Union fittings are sold separately. 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—Spring-Loaded Piston
    Image of ProductInUse. Shown with Union Fitting (Sold Separately). Front orientation. Contains MultipleImages. Check Valves. Union-Insert Check Valves.
    Image of Product. Front orientation. Check Valves. Union-Insert Check Valves.

    Shown with Union Fitting

    (Sold Separately)

    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.
    Check Valves
    Valve Union
    Fittings
    Pipe
    Size
    Flow Coefficient
    (Cv)
    Max. Pressure
    @ Temp.
    Min. Opening
    Pressure, psi
    Temp. Range,
    ° F
    End-to-End
    Lg.
    Mounting Position
    Specs.
    Met
    For Use With
    Piston Material
    Spring Material
    Seal Material
    Each
    Each
    NPT Female Inlet × NPT Female Outlet
    1/2 2.31,500 psi @ 70° F0.5-10 to 40013/16"Horizontal, VerticalASTM A479Air, Argon, Helium, Krypton, Neon, Water, Xenon316 Stainless Steel
    		316 Stainless Steel
    		Fluoroelastomer
    		8615T3200000008615T520000000
    1 6.11,500 psi @ 70° F0.5-10 to 4001 1/16"Horizontal, VerticalASTM A479Air, Argon, Helium, Krypton, Neon, Water, Xenon316 Stainless Steel
    		316 Stainless Steel
    		Fluoroelastomer
    		8615T360000008615T56000000
    1 1/2 191,500 psi @ 70° F0.5-10 to 4001 5/16"Horizontal, VerticalASTM A479Air, Argon, Helium, Krypton, Neon, Water, Xenon316 Stainless Steel
    		316 Stainless Steel
    		Fluoroelastomer
    		8615T420000008615T62000000
    233.31,500 psi @ 70° F0.5-10 to 4001 9/16"Horizontal, VerticalASTM A479Air, Argon, Helium, Krypton, Neon, Water, Xenon316 Stainless Steel
    		316 Stainless Steel
    		Fluoroelastomer
    		8615T440000008615T64000000
     

    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
    1/4 1150 psi @ 70° F1.535 to 140Dark Gray3"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
    		4721K11000000
    3/8 3150 psi @ 70° F1.535 to 140Dark Gray3"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
    		4721K1200000
    3 250150 psi @ 70° F1.535 to 140Dark Gray10 9/16"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
    		4721K22000000
    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
    		4721K23000000
     
    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
    3 250150 psi @ 70° F1.535 to 190Dark Gray10 9/16"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
    		4721K250000000
    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
    		4721K2600000000
     

    Threaded Two-Stage Backflow-Prevention Valves for Drinking Water

    Image of Product. Double Union. Front orientation. Contains Annotated. Backflow-Prevention Valves. Threaded Two-Stage Backflow-Prevention Valves for Drinking Water, Double Union, Dual Check.
    Image of Product. Single-Union Female Inlet × Female Outlet. Front orientation. Contains Annotated. Backflow-Prevention Valves. Threaded Two-Stage Backflow-Prevention Valves for Drinking Water, Single Union, Dual Check, Female.

    Double Union

    Single-Union Female Inlet

    × Female Outlet

    Image of Product. Single-Union Male Inlet × Female Outlet. Front orientation. Contains Annotated. Backflow-Prevention Valves. Threaded Two-Stage Backflow-Prevention Valves for Drinking Water, Single Union, Dual Check, Female, Male.

    Single-Union Male Inlet ×

    Female Outlet

    Keep backflow from contaminating your drinking water supply—these valves meet NSF/ANSI 61 for use with drinking water. They consist of a primary check valve and a secondary check valve. If the primary check fails to close when flow stops or reverses, the secondary check valve engages to prevent backflow.
    Double Union—Double-union valves have a union fitting on both ends.
    Single Union—Single-union valves have a union fitting on one end.
    Pipe
    Size
    Max. Pressure
    @ Temp.
    Min. Opening
    Pressure, psi
    Temp. Range,
    ° F
    End-to-End
    Lg.
    Food Industry
    Std.
    For Use With
    Seal
    Material
    Each
    Brass Body—Dual Check, Single Union
     
    NPT Female Inlet × NPT Female Outlet
    3/4
    		175 psi @ 180° F535 to 1803 3/4"NSF/ANSI 61
    		Drinking WaterEPDM
    		49235K81000000
    1
    		175 psi @ 180° F535 to 1803 3/4"NSF/ANSI 61
    		Drinking WaterEPDM
    		49235K8200000
     
    NPT Male Inlet × NPT Female Outlet
    3/4
    		175 psi @ 180° F535 to 1803 3/4"NSF/ANSI 61
    		Drinking WaterEPDM
    		49235K91000000
     
    Brass Body—Dual Check, Double Union
     
    NPT Female Inlet × NPT Female Outlet
    1/2
    		175 psi @ 180° F535 to 1803 3/4"NSF/ANSI 61
    		Drinking WaterEPDM
    		9117K41000000
    3/4
    		175 psi @ 180° F535 to 1803 3/4"NSF/ANSI 61
    		Drinking WaterEPDM
    		9117K4200000
    1
    		175 psi @ 180° F535 to 1804"NSF/ANSI 61
    		Drinking WaterEPDM
    		9117K43000000
     
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