Welding Gas Flashback Arresters For Hydrogen

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13 Products

Welding Gas Flashback Arresters for Regulators

Standard and High Flow

Quick Disconnect

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.

Arresters with right-hand threads are for use with oxygen. Arresters with left-hand threads are for use with acetylene, hydrogen, and propane.

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 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.

Left-Hand Threads—UNF Male × UNF Female

	Max. Pressure, psi
Thread Size	Acetylene	Hydrogen	Propane	Material	Specifications Met		Each
Standard
3/8"-24	15	50	50	Brass	EN 730, ISO 5175	0000000	000000
9/16"-18	15	50	50	Brass	EN 730, ISO 5175	00000000	00000
High Flow
9/16"-18	15	50	50	Brass	EN 730, ISO 5175	00000000	000000
7/8"-14	15	50	50	Brass	EN 730, ISO 5175	00000000	000000
Quick Disconnect
9/16"-18	15	50	50	Brass	EN 561, ISO 7289	00000000	000000

Right-Hand and Left-Hand Threads—UNF Male × UNF Female

	Max. Pressure, psi
Thread Size	Oxygen	Acetylene	Hydrogen	Propane	Material	Specifications Met		Pair
Standard
9/16"-18	143	15	50	50	Brass	EN 730, ISO 5175	00000000	0000000

NPT Female × NPT Female

	Max. Pressure, psi
Pipe Size	Acetylene	Hydrogen	Propane	Material	Specifications Met		Each
Standard
1/4	15	50	50	Brass	EN 730, ISO 5175	00000000	0000000

Welding Gas Flashback Arresters for Torches

Standard and High Flow

Quick Disconnect

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.

Arresters with right-hand threads are for use with oxygen; arresters with left-hand threads are for use with acetylene, hydrogen, and propane.

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 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.

With Left-Hand Threads

Male Hose Connection		Female Hose Connection		Max. Pressure, psi
Thread Size	Thread Type	Thread Size	Thread Type	Acetylene	Hydrogen	Propane	Material	Specifications Met		Each
Standard
9/16"-18	UNF	9/16"-18	UNF	15	50	50	Brass	EN 730, ISO 5175	00000000	000000
High Flow
3/8"-24	UNF	3/8"-24	UNF	15	50	50	Brass	EN 730, ISO 5175	0000000	00000
9/16"-18	UNF	9/16"-18	UNF	15	50	50	Brass	EN 730, ISO 5175	00000000	000000
7/8"-14	UNF	7/8"-14	UNF	15	50	50	Brass	EN 730, ISO 5175	00000000	000000
Quick Disconnect
9/16"-18	UNF	9/16"-18	UNF	15	50	72	Brass	EN 561, ISO 7289	00000000	00000

With Right-Hand and Left-Hand Threads

Male Hose Connection		Female Hose Connection		Max. Pressure, psi
Thread Size	Thread Type	Thread Size	Thread Type	Oxygen	Acetylene	Hydrogen	Propane	Material	Specifications Met		Pair
Standard
9/16"-18	UNF	9/16"-18	UNF	143	15	50	50	Brass	EN 730, ISO 5175	00000000	0000000