Thread Direction Thread Direction |
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Component Component |
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REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration,Evaluation, Authorization and Restriction of Chemicals) |
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RoHS (Restriction of Hazardous Substances) RoHS (Restriction ofHazardous Substances) |
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DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement) |
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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.
Arresters with right-hand threads are for use with oxygen; arresters with left-hand threads are for use with acetylene, hydrogen, and propane.
Male Hose Connection | Female Hose Connection | |||||||
---|---|---|---|---|---|---|---|---|
Max. Pressure for Oxygen, psi | Thread Size | Thread Type | Thread Size | Thread Type | Material | Specifications Met | Each | |
143 | 9/16"-18 | UNF | 9/16"-18 | UNF | Brass | EN 730, ISO 5175 | 00000000 | 000000 |
Max. Pressure, psi | Male Hose Connection | Female Hose Connection | ||||||||
---|---|---|---|---|---|---|---|---|---|---|
Acetylene | Hydrogen | Propane | Thread Size | Thread Type | Thread Size | Thread Type | Material | Specifications Met | Each | |
15 | 50 | 50 | 9/16"-18 | UNF | 9/16"-18 | UNF | Brass | EN 730, ISO 5175 | 00000000 | 000000 |
Max. Pressure, psi | Male Hose Connection | Female Hose Connection | |||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
Oxygen | Acetylene | Hydrogen | Propane | Thread Size | Thread Type | Thread Size | Thread Type | Material | Specifications Met | Pair | |
143 | 15 | 50 | 50 | 9/16"-18 | UNF | 9/16"-18 | UNF | Brass | EN 730, ISO 5175 | 00000000 | 000000 |
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.
Arresters with right-hand threads are for use with oxygen; arresters with left-hand threads are for use with acetylene, hydrogen, and propane.
Male Hose Connection | Female Hose Connection | |||||||
---|---|---|---|---|---|---|---|---|
Max. Pressure for Oxygen, psi | Thread Size | Thread Type | Thread Size | Thread Type | Material | Specifications Met | Each | |
143 | 9/16"-18 | UNF | 9/16"-18 | UNF | Brass | EN 730, ISO 5175 | 00000000 | 000000 |
Max. Pressure, psi | Male Hose Connection | Female Hose Connection | ||||||||
---|---|---|---|---|---|---|---|---|---|---|
Acetylene | Hydrogen | Propane | Thread Size | Thread Type | Thread Size | Thread Type | Material | Specifications Met | Each | |
15 | 50 | 50 | 9/16"-18 | UNF | 9/16"-18 | UNF | Brass | EN 730, ISO 5175 | 00000000 | 000000 |
Max. Pressure, psi | Male Hose Connection | Female Hose Connection | |||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
Oxygen | Acetylene | Hydrogen | Propane | Thread Size | Thread Type | Thread Size | Thread Type | Material | Specifications Met | Pair | |
143 | 15 | 50 | 50 | 9/16"-18 | UNF | 9/16"-18 | UNF | Brass | EN 730, ISO 5175 | 00000000 | 000000 |
Welding Gas Check Valves for Torches

Stop the reverse flow of gas in your torch. Check valves do not stop flashbacks.
Max. Pressure, psi | Male Hose Connection | Female Hose Connection | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Oxygen | Acetylene | Hydrogen | Propane | Thread Direction | Thread Size | Thread Type | Thread Direction | Thread Size | Thread Type | Material | Each | |
125 | __ | __ | __ | Right Hand | 3/8"-24 | UNF | Right Hand | 3/8"-24 | UNF | Brass | 000000 | 000000 |
125 | __ | __ | __ | Right Hand | 9/16"-18 | UNF | Right Hand | 9/16"-18 | UNF | Brass | 000000 | 00000 |
__ | 50 | 50 | 50 | Left Hand | 3/8"-24 | UNF | Left Hand | 3/8"-24 | UNF | Brass | 000000 | 00000 |
__ | 50 | 50 | 50 | Left Hand | 9/16"-18 | UNF | Left Hand | 9/16"-18 | UNF | Brass | 000000 | 00000 |
Welding Gas Check Valves for Regulators

Stop the reverse flow of gas in your regulator. Check valves do not stop flashbacks.