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    20 Products

    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

    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.
    Thread
    Size
    Max. Pressure
    for Oxygen, psi
    Material
    Specs. Met
    Each
    Standard Flashback Arresters
    3/8"-24
    		143BrassEN 730, ISO 51750000000000000
    9/16"-18
    		143BrassEN 730, ISO 51750000000000000
     
    High Flow Flashback Arresters
    9/16"-18
    		143BrassEN 730, ISO 517500000000000000
    7/8"-14
    		143BrassEN 730, ISO 517500000000000000
     
    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

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

    High Flow

    Flashback

    Arresters

    Arresters with left-hand threads are for use with acetylene, hydrogen, and propane.
    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.
    Max. Pressure, psi
    Thread
    Size
    Acetylene
    Hydrogen
    Propane
    Material
    Specs. Met
    Each
    Standard Flashback Arresters
    3/8"-24
    		155050BrassEN 730, ISO 51750000000000000
    9/16"-18
    		155050BrassEN 730, ISO 51750000000000000
     
    High Flow Flashback Arresters
    9/16"-18
    		155050BrassEN 730, ISO 517500000000000000
    7/8"-14
    		155050BrassEN 730, ISO 517500000000000000
     
    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 5175000000000000000
     
    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 5175000000000000000
     
    Left-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 left-hand threads are for use with acetylene, hydrogen, and propane.
    Max. Pressure, psi
    Pipe
    Size
    Acetylene
    Hydrogen
    Propane
    Material
    Specs. Met
    Each
    Standard Flashback Arresters
    1/4
    		155050BrassEN 730, ISO 5175000000000000000
     

    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

    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.
    Thread
    Size
    Max. Pressure
    for Oxygen, psi
    Material
    Specs. Met
    Each
    Standard Flashback Arresters
    9/16"-18
    		143BrassEN 730, ISO 517500000000000000
     
    High Flow Flashback Arresters
    3/8"-24
    		143BrassEN 730, ISO 5175000000000000
    9/16"-18
    		143BrassEN 730, ISO 517500000000000000
    7/8"-14
    		143BrassEN 730, ISO 517500000000000000
     
    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

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

    High Flow

    Flashback

    Arresters

    Arresters with left-hand threads are for use with acetylene, hydrogen, and propane.
    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.
    Max. Pressure, psi
    Thread
    Size
    Acetylene
    Hydrogen
    Propane
    Material
    Specs. Met
    Each
    Standard Flashback Arresters
    9/16"-18
    		155050BrassEN 730, ISO 517500000000000000
     
    High Flow Flashback Arresters
    3/8"-24
    		155050BrassEN 730, ISO 5175000000000000
    9/16"-18
    		155050BrassEN 730, ISO 517500000000000000
    7/8"-14
    		155050BrassEN 730, ISO 517500000000000000
     
    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 5175000000000000000
     
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