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    46 Products

    Threaded Check Valves for Harsh Chemicals

    These valves open to allow flow in one direction and close when flow stops or reverses.
    PVDF Body—Spring-Loaded Ball
    Image of Product. Front orientation. Check Valves. Threaded Check Valves for Harsh Chemicals, PVDF Body—Spring-Loaded Ball.
    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
    For Use With
    Ball Material
    Spring Material
    Seal Material
    Each
    NPT Male Inlet × NPT Male Outlet
    1/8 Not Rated220 psi @ 70° F2.540 to 180White1"Any Angle, Horizontal, VerticalAir, Ammonia, Butane, Carbon Dioxide, Chlorine, Citric Acid, Deionized Water, Diesel Fuel, Ethylene Glycol, Fuel Oil, Gasoline, Hydrochloric Acid, Isopropyl Alcohol, Kerosene, Natural Gas, Nitric Acid, Oil, Oxygen, Phosphoric Acid, Propane, Salt Water, Sodium Hydroxide (Caustic Soda), Toluene (Methylbenzene), Water, Xylene316 Stainless Steel
    		316 Stainless Steel
    		Fluoroelastomer
    		46505K21000000
    1/4 Not Rated220 psi @ 70° F2.540 to 180White1 7/16"Any Angle, Horizontal, VerticalAir, Ammonia, Butane, Carbon Dioxide, Chlorine, Citric Acid, Deionized Water, Diesel Fuel, Ethylene Glycol, Fuel Oil, Gasoline, Hydrochloric Acid, Isopropyl Alcohol, Kerosene, Natural Gas, Nitric Acid, Oil, Oxygen, Phosphoric Acid, Propane, Salt Water, Sodium Hydroxide (Caustic Soda), Toluene (Methylbenzene), Water, Xylene316 Stainless Steel
    		316 Stainless Steel
    		Fluoroelastomer
    		46505K3100000
    3/8 Not Rated220 psi @ 70° F2.540 to 180White1 1/2"Any Angle, Horizontal, VerticalAir, Ammonia, Butane, Carbon Dioxide, Chlorine, Citric Acid, Deionized Water, Diesel Fuel, Ethylene Glycol, Fuel Oil, Gasoline, Hydrochloric Acid, Isopropyl Alcohol, Kerosene, Natural Gas, Nitric Acid, Oil, Oxygen, Phosphoric Acid, Propane, Salt Water, Sodium Hydroxide (Caustic Soda), Toluene (Methylbenzene), Water, Xylene316 Stainless Steel
    		316 Stainless Steel
    		Fluoroelastomer
    		46505K3300000
    1/2 Not Rated220 psi @ 70° F2.540 to 180White1 13/16"Any Angle, Horizontal, VerticalAir, Ammonia, Butane, Carbon Dioxide, Chlorine, Citric Acid, Deionized Water, Diesel Fuel, Ethylene Glycol, Fuel Oil, Gasoline, Hydrochloric Acid, Isopropyl Alcohol, Kerosene, Natural Gas, Nitric Acid, Oil, Oxygen, Phosphoric Acid, Propane, Salt Water, Sodium Hydroxide (Caustic Soda), Toluene (Methylbenzene), Water, Xylene316 Stainless Steel
    		316 Stainless Steel
    		Fluoroelastomer
    		46505K3500000
     
    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
     

    Check Valves with Push-to-Connect Fittings for Harsh Chemicals

    Image of Product. Back orientation. Check Valves. Check Valves with Push-to-Connect Fittings for Harsh Chemicals.
    Connect your inlet tubing into the push-to-connect fittings—no heat, solder, or flux required. These valves have a PVDF body and a fluoroelastomer seal for excellent chemical resistance. They open to allow flow in one direction and close when flow stops or reverses.
    For Tube
    OD
    Pipe
    Size
    Max. Pressure
    @ Temp.
    Min. Opening
    Pressure, psi
    Temp. Range,
    ° F
    Color
    End-to-End
    Lg.
    For Use With
    Piston
    Material
    Spring
    Material
    Seal Material
    Each
    PVDF Body
     
    Push-to-Connect Inlet × NPTF Male Outlet
    3/8"1/4
    		300 psi @ 70° F0.50 to 250Black1 3/8"Air, Argon, Butane, Carbon Dioxide, Chlorine, Citric Acid, Deionized Water, Diesel Fuel, Ethanol, Ethylene Glycol, Gasoline, Helium, Hydrochloric Acid, Isopropyl Alcohol, Kerosene, Krypton, Mineral Spirits, Natural Gas, Neon, Nitric Acid, Nitrogen, Oil, Oxygen, Phosphoric Acid, Propane, Salt Water, Soap Solutions, Sodium Hypochlorite (Bleach), Sulfuric Acid, Toluene (Methylbenzene), Water, Xenon, XylenePVDF
    		Stainless Steel
    		Fluoroelastomer
    		2048N11000000
     

    Ultra-Chemical-Resistant Threaded Check Valves

    The most chemical-resistant check valves in our offering, these have a PFA body to withstand methyl ethyl ketone, sodium hypochlorite, and other extremely harsh chemicals. They open to allow flow in one direction and close when flow stops or reverses.
    PFA Body—Spring-Loaded Piston
    Image of Product. Female × Female. Front orientation. Contains Annotated. Check Valves. Ultra-Chemical-Resistant Threaded Check Valves, PFA Body—Spring-Loaded Piston, Female.
    Image of Product. Female × Male. Front orientation. Contains Annotated. Check Valves. Ultra-Chemical-Resistant Threaded Check Valves, PFA Body—Spring-Loaded Piston, Female, Male.

    Female × Female

    Female × Male

    Image of Product. Male × Female. Front orientation. Contains Annotated. Check Valves. Ultra-Chemical-Resistant Threaded Check Valves, PFA Body—Spring-Loaded Piston, Male, Female.
    Image of Product. Male × Male. Front orientation. Contains Annotated. Check Valves. Ultra-Chemical-Resistant Threaded Check Valves, PFA Body—Spring-Loaded Piston, Male.

    Male × Female

    Male × Male

    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
    For Use With
    Piston
    Material
    Spring
    Material
    Each
    NPT Female Inlet × NPT Female Outlet
    1/4 0.75125 psi @ 150° F10 to 210Semi-Clear White2 3/8"Any Angle, Horizontal, VerticalAcetone, Ammonia, Butane, Carbon Dioxide, Citric Acid, Diesel Fuel, Ethylene Glycol, Fuel Oil, Gasoline, Hydrochloric Acid, Isopropyl Alcohol, Kerosene, Methanol (Methyl Alcohol), Methyl Ethyl Ketone (MEK), Mineral Spirits, Natural Gas, Nitric Acid, Nitrogen, Oil, Oxygen, Phosphoric Acid, Propane, Salt Water, Soap Solutions, Sodium Hydroxide (Caustic Soda), Sodium Hypochlorite (Bleach), Sulfuric Acid, Toluene (Methylbenzene), Water, XylenePTFE
    		PTFE
    		47155K710000000
    1/2 4100 psi @ 150° F10 to 210Semi-Clear White3 3/8"Any Angle, Horizontal, VerticalAcetone, Ammonia, Butane, Carbon Dioxide, Citric Acid, Diesel Fuel, Ethylene Glycol, Fuel Oil, Gasoline, Hydrochloric Acid, Isopropyl Alcohol, Kerosene, Methanol (Methyl Alcohol), Methyl Ethyl Ketone (MEK), Mineral Spirits, Natural Gas, Nitric Acid, Nitrogen, Oil, Oxygen, Phosphoric Acid, Propane, Salt Water, Soap Solutions, Sodium Hydroxide (Caustic Soda), Sodium Hypochlorite (Bleach), Sulfuric Acid, Toluene (Methylbenzene), Water, XylenePTFE
    		PTFE
    		47155K73000000
     
    NPT Female Inlet × NPT Male Outlet
    1/4 0.75125 psi @ 150° F10 to 210Semi-Clear White2 7/16"Any Angle, Horizontal, VerticalAcetone, Ammonia, Butane, Carbon Dioxide, Citric Acid, Diesel Fuel, Ethylene Glycol, Fuel Oil, Gasoline, Hydrochloric Acid, Isopropyl Alcohol, Kerosene, Methanol (Methyl Alcohol), Methyl Ethyl Ketone (MEK), Mineral Spirits, Natural Gas, Nitric Acid, Nitrogen, Oil, Oxygen, Phosphoric Acid, Propane, Salt Water, Soap Solutions, Sodium Hydroxide (Caustic Soda), Sodium Hypochlorite (Bleach), Sulfuric Acid, Toluene (Methylbenzene), Water, XylenePTFE
    		PTFE
    		47155K74000000
     
    NPT Male Inlet × NPT Female Outlet
    1/4 0.75125 psi @ 150° F10 to 210Semi-Clear White2 1/16"Any Angle, Horizontal, VerticalAcetone, Ammonia, Butane, Carbon Dioxide, Citric Acid, Diesel Fuel, Ethylene Glycol, Fuel Oil, Gasoline, Hydrochloric Acid, Isopropyl Alcohol, Kerosene, Methanol (Methyl Alcohol), Methyl Ethyl Ketone (MEK), Mineral Spirits, Natural Gas, Nitric Acid, Nitrogen, Oil, Oxygen, Phosphoric Acid, Propane, Salt Water, Soap Solutions, Sodium Hydroxide (Caustic Soda), Sodium Hypochlorite (Bleach), Sulfuric Acid, Toluene (Methylbenzene), Water, XylenePTFE
    		PTFE
    		47155K76000000
     
    NPT Male Inlet × NPT Male Outlet
    1/4 0.75125 psi @ 150° F10 to 210Semi-Clear White2 7/16"Any Angle, Horizontal, VerticalAcetone, Ammonia, Butane, Carbon Dioxide, Citric Acid, Diesel Fuel, Ethylene Glycol, Fuel Oil, Gasoline, Hydrochloric Acid, Isopropyl Alcohol, Kerosene, Methanol (Methyl Alcohol), Methyl Ethyl Ketone (MEK), Mineral Spirits, Natural Gas, Nitric Acid, Nitrogen, Oil, Oxygen, Phosphoric Acid, Propane, Salt Water, Soap Solutions, Sodium Hydroxide (Caustic Soda), Sodium Hypochlorite (Bleach), Sulfuric Acid, Toluene (Methylbenzene), Water, XylenePTFE
    		PTFE
    		47155K75000000
     

    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.
    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
    BSPP Female × BSPP Female
    1/2 6.3150 psi @ 70° F140 to 140Dark Gray4 1/4"Horizontal, VerticalASTM D1784Butane, 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 D1784Butane, Kerosene, Liquid Carbon Dioxide, Natural Gas, Nitric Acid, Oxygen, Phosphoric Acid, Propane, Salt Water, Soap Solutions, WaterPVC
    		Fluoroelastomer
    		7909K93000000
     
    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
     

    Vacuum Breakers for Chemicals

    A plastic body withstands pH neutralizing, cleaning, and plating solutions containing sodium hydroxide, methyl ethyl ketone, and other harsh chemicals. Also known as vacuum-breaking valves, these valves have vents that open when pressure drops to relieve vacuum conditions and prevent backward suction from drawing liquid into upstream piping.
    Diaphragm Check Valve
    Image of Product. Front orientation. Vacuum Breakers. Vacuum Breakers for Chemicals.
    Material
    CPVC Body
    PVC Body
    Inlet Pipe
    Size
    Outlet
    Pipe SIze
    For Pipe
    Schedule
    Flow Coefficient
    (Cv)
    Max. Pressure
    @ Temp.
    Min. Opening
    Pressure, psi
    End-to-End
    Lg.
    Seal
    DIaphragm
    For Use With
    Temp. Range,
    ° F
    Color
    Each
    Temp. Range,
    ° F
    Color
    Each
    NPT Female Inlet × NPT Female Outlet
    1/2
    		1/2
    		80
    		Not Rated100 psi @ 75° F14 5/16"Fluoroelastomer
    		Fluoroelastomer
    		Beverage, Food, Air, Ammonia, Argon, Carbon Dioxide, Chlorinated Water, Diesel Fuel, Drinking Water, Ethylene Glycol, Helium, Hydrochloric Acid, Kerosene, Krypton, Liquid Carbon Dioxide, Methanol (Methyl Alcohol), Methyl Ethyl Ketone (MEK), Mineral Spirits, Natural Gas, Neon, Nitric Acid, Nitrogen, Oil, Oxygen, Soap Solutions, Sodium Hydroxide (Caustic Soda), Sodium Hypochlorite (Bleach), Water, Xenon40 to 180Light Gray1868N13000000040 to 140Gray1868N10000000
    3/4
    		3/4
    		80
    		Not Rated100 psi @ 75° F14 5/8"Fluoroelastomer
    		Fluoroelastomer
    		Beverage, Food, Air, Ammonia, Argon, Carbon Dioxide, Chlorinated Water, Diesel Fuel, Drinking Water, Ethylene Glycol, Helium, Hydrochloric Acid, Kerosene, Krypton, Liquid Carbon Dioxide, Methanol (Methyl Alcohol), Methyl Ethyl Ketone (MEK), Mineral Spirits, Natural Gas, Neon, Nitric Acid, Nitrogen, Oil, Oxygen, Soap Solutions, Sodium Hydroxide (Caustic Soda), Sodium Hypochlorite (Bleach), Water, Xenon40 to 180Light Gray1868N1400000040 to 140Gray1868N11000000
    1
    		1
    		80
    		Not Rated100 psi @ 75° F15 1/8"Fluoroelastomer
    		Fluoroelastomer
    		Beverage, Food, Air, Ammonia, Argon, Carbon Dioxide, Chlorinated Water, Diesel Fuel, Drinking Water, Ethylene Glycol, Helium, Hydrochloric Acid, Kerosene, Krypton, Liquid Carbon Dioxide, Methanol (Methyl Alcohol), Methyl Ethyl Ketone (MEK), Mineral Spirits, Natural Gas, Neon, Nitric Acid, Nitrogen, Oil, Oxygen, Soap Solutions, Sodium Hydroxide (Caustic Soda), Sodium Hypochlorite (Bleach), Water, Xenon40 to 180Light Gray1868N1500000040 to 140Gray1868N12000000
     
    Spring-Loaded Piston Check Valve
    Image of Product. Front orientation. Vacuum Breakers. Vacuum Breakers for Chemicals.
    Material
    CPVC Body
    PVC Body
    Inlet Pipe
    Size
    Outlet
    Pipe SIze
    For Pipe
    Schedule
    Flow Coefficient
    (Cv)
    Max. Pressure
    @ Temp.
    Min. Opening
    Pressure, psi
    End-to-End
    Lg.
    Seal
    Piston
    Spring
    For Use With
    Temp. Range,
    ° F
    Color
    Each
    Temp. Range,
    ° F
    Color
    Each
    NPT Female Inlet × NPT Female Outlet
    1 1/2
    		1 1/2
    		80
    		Not Rated100 psi @ 75° F17 15/16"Fluoroelastomer
    		CPVC
    		PolymerBeverage, Food, Air, Ammonia, Argon, Carbon Dioxide, Chlorinated Water, Diesel Fuel, Drinking Water, Ethylene Glycol, Helium, Hydrochloric Acid, Kerosene, Krypton, Liquid Carbon Dioxide, Methanol (Methyl Alcohol), Methyl Ethyl Ketone (MEK), Mineral Spirits, Natural Gas, Neon, Nitric Acid, Nitrogen, Oil, Oxygen, Soap Solutions, Sodium Hydroxide (Caustic Soda), Sodium Hypochlorite (Bleach), Water, Xenon40 to 180Light Gray1868N180000000—————0
    2
    		2
    		80
    		Not Rated100 psi @ 75° F18 1/2"Fluoroelastomer
    		PVC
    		PolymerBeverage, Food, Air, Ammonia, Argon, Carbon Dioxide, Chlorinated Water, Diesel Fuel, Drinking Water, Ethylene Glycol, Helium, Hydrochloric Acid, Kerosene, Krypton, Liquid Carbon Dioxide, Methanol (Methyl Alcohol), Methyl Ethyl Ketone (MEK), Mineral Spirits, Natural Gas, Neon, Nitric Acid, Nitrogen, Oil, Oxygen, Soap Solutions, Sodium Hydroxide (Caustic Soda), Sodium Hypochlorite (Bleach), Water, Xenon—————040 to 140Gray1868N170000000
     

    Welding Gas Flashback Arresters for Regulators

    Attach these arresters to the outlet connection of a regulator on a torch that cuts steel up to 11" thick. Arresters extinguish flames and have a check valve to stop reverse gas flow. They are reusable; resetting is not required after flashback.
    Right-Hand Threads—UNF Male × UNF Female
    Image of Product. Front orientation. Welding Gas Flashback Arresters. Welding Gas Flashback Arresters for Regulators, Standard Flashback Arresters.

    Standard

    Flashback

    Arresters

    Image of Product. Front orientation. Welding Gas Flashback Arresters. Welding Gas Flashback Arresters for Regulators, High Flow Flashback Arresters.

    High Flow

    Flashback

    Arresters

    Image of Product. Front orientation. Welding Gas Flashback Arresters. Welding Gas Flashback Arresters for Regulators, Quick Disconnect Flashback Arresters.

    Quick Disconnect

    Flashback Arresters

    Arresters with right-hand threads are for use with oxygen.
    High Flow Flashback Arresters—High-flow arresters give you twice the airflow rate compared to standard flashback arresters when they’re used at the same inlet pressure. They are often used with larger torch tips.
    Quick Disconnect Flashback Arresters—Quick-disconnect arresters have a fitting that connects and disconnects them from your torch, so you don't have to thread these arresters on and off with a wrench.
    Thread
    Size
    Max. Pressure
    for Oxygen, psi
    Material
    Specs. Met
    Each
    Standard Flashback Arresters
    3/8"-24
    		143BrassEN 730, ISO 51757942A51000000
    9/16"-18
    		143BrassEN 730, ISO 517578335A6700000
     
    High Flow Flashback Arresters
    9/16"-18
    		143BrassEN 730, ISO 517578335A36000000
    7/8"-14
    		143BrassEN 730, ISO 517578335A52000000
     
    Quick Disconnect Flashback Arresters
    9/16"-18
    		143BrassEN 561, ISO 728978335A56000000
     
    Right-Hand and Left-Hand Threads—UNF Male × UNF Female
    Image of Product. Front orientation. Welding Gas Flashback Arresters. Welding Gas Flashback Arresters for Regulators, Standard Flashback Arresters.

    Standard

    Flashback

    Arresters

    Arresters with right-hand threads are for use with oxygen.
    Arresters with left-hand threads are for use with acetylene, hydrogen, and propane.
    Max. Pressure, psi
    Thread
    Size
    Oxygen
    Acetylene
    Hydrogen
    Propane
    Material
    Specs. Met
    Pair
    Standard Flashback Arresters
    9/16"-18
    		143155050BrassEN 730, ISO 517578335A430000000
     
    Right-Hand Threads—NPT Female × NPT Female
    Image of Product. Front orientation. Welding Gas Flashback Arresters. Welding Gas Flashback Arresters for Regulators, Female, Standard Flashback Arresters.

    Standard

    Flashback

    Arresters

    Arresters with right-hand threads are for use with oxygen.
    Pipe
    Size
    Max. Pressure
    for Oxygen, psi
    Material
    Specs. Met
    Each
    Standard Flashback Arresters
    1/4
    		143BrassEN 730, ISO 517578335A530000000
     

    Welding Gas Check Valves for Regulators

    Image of Product. Front orientation. Check Valves. Welding Gas Check Valves for Regulators.
    Stop the reverse flow of gas in your regulator. Check valves do not stop flashbacks.
    Male Hose
    Connection
    Male Pipe
    Connection
    Max. Pressure
    for Oxygen, psi
    Thread
    Direction
    Thread
    Size
    Thread
    Type
    Thread
    Direction
    Pipe
    Size
    Thread
    Type
    Material
    Each
    125Right Hand9/16"-18
    		UNF
    		Right Hand1/4
    		NPT
    		Brass7957A3000000

    Welding Gas Flashback Arresters for Torches

    These arresters attach directly to torches that cut steel up to 8" thick. They extinguish flames and have a check valve to stop reverse gas flow. They are reusable; resetting is not required after flashback.
    Right-Hand Threads—UNF Male × UNF Female
    Image of Product. Front orientation. Welding Gas Flashback Arresters. Welding Gas Flashback Arresters for Torches, Standard Flashback Arresters.

    Standard

    Flashback

    Arresters

    Image of Product. Front orientation. Welding Gas Flashback Arresters. Welding Gas Flashback Arresters for Torches, High Flow Flashback Arresters.

    High Flow

    Flashback

    Arresters

    Image of Product. Front orientation. Welding Gas Flashback Arresters. Welding Gas Flashback Arresters for Torches, Quick Disconnect Flashback Arresters.

    Quick Disconnect

    Flashback Arresters

    Arresters with right-hand threads are for use with oxygen.
    High Flow Flashback Arresters—High-flow arresters give you twice the airflow rate compared to standard flashback arresters when they’re used at the same inlet pressure. They are often used with larger torch tips.
    Quick Disconnect Flashback Arresters—Quick-disconnect arresters have a fitting that connects and disconnects them from your torch, so you don't have to thread these arresters on and off with a wrench.
    Thread
    Size
    Max. Pressure
    for Oxygen, psi
    Material
    Specs. Met
    Each
    Standard Flashback Arresters
    9/16"-18
    		143BrassEN 730, ISO 517578335A31000000
     
    High Flow Flashback Arresters
    3/8"-24
    		143BrassEN 730, ISO 51757942A1100000
    9/16"-18
    		143BrassEN 730, ISO 517578335A47000000
    7/8"-14
    		143BrassEN 730, ISO 517578335A49000000
     
    Quick Disconnect Flashback Arresters
    9/16"-18
    		143BrassEN 561, ISO 728978335A6500000
     
    Right-Hand and Left-Hand Threads—UNF Male × UNF Female
    Image of Product. Front orientation. Welding Gas Flashback Arresters. Welding Gas Flashback Arresters for Torches, Standard Flashback Arresters.

    Standard

    Flashback

    Arresters

    Arresters with right-hand threads are for use with oxygen.
    Arresters with left-hand threads are for use with acetylene, hydrogen, and propane.
    Max. Pressure, psi
    Thread
    Size
    Oxygen
    Acetylene
    Hydrogen
    Propane
    Material
    Specs. Met
    Pair
    Standard Flashback Arresters
    9/16"-18
    		143155050BrassEN 730, ISO 517578335A410000000
     

    Welding Gas Check Valves for Torches

    Image of Product. Front orientation. Check Valves. Welding Gas Check Valves for Torches.
    Stop the reverse flow of gas in your torch. Check valves do not stop flashbacks.
    Male Hose
    Connection
    Female Hose
    Connection
    Max. Pressure
    for Oxygen, psi
    Thread
    Direction
    Thread
    Size
    Thread
    Type
    Thread
    Direction
    Thread
    Size
    Thread
    Type
    Material
    Each
    125Right Hand9/16"-18
    		UNF
    		Right Hand
    		9/16"-18
    		UNF
    		Brass7957A1000000
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