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To prevent flashback in flammable gas pipelines, an internal flame-arresting element absorbs the heat from a fire to extinguish the flame. These valves are commonly used in pilot lines connected to waste gas burners.
For technical drawings and 3-D models, click on a part number.
Pipe Size | Max. Pressure | Max. Temperature, °F | End-to-End Lg. | Each | |
Aluminum Body | |||||
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NPT Female | |||||
1/4 | 25 psi @ 176° F | 176° | 3" | 0000000 | 0000000 |
1/2 | 25 psi @ 176° F | 176° | 3 3/4" | 0000000 | 000000 |
3/4 | 25 psi @ 176° F | 176° | 3 3/4" | 0000000 | 000000 |
1 | 25 psi @ 176° F | 176° | 3 3/4" | 0000000 | 000000 |
1 1/2 | 25 psi @ 176° F | 176° | 3 3/4" | 0000000 | 000000 |
2 | 25 psi @ 176° F | 176° | 4 3/4" | 0000000 | 000000 |
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 | |||||||
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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 | European Safety Specification EN730, ISO 5175 Class 1 | 00000000 | 000000 |
Max. Pressure, psi | Male Hose Connection | Female Hose Connection | ||||||||
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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 | European Safety Specification EN730, ISO 5175 Class 1 | 00000000 | 000000 |
Max. Pressure, psi | Male Hose Connection | Female Hose Connection | |||||||||
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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 | European Safety Specification EN730, ISO 5175 Class 1 | 00000000 | 000000 |
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 | European Safety Specification EN730, ISO 5175 Class 1 | 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 | European Safety Specification EN730, ISO 5175 Class 1 | 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 | European Safety Specification EN730, ISO 5175 Class 1 | 00000000 | 000000 |
Minimize fire hazard from flammable vapors. Mount an arrester to your vent pipe to stop flames from traveling back into your tank. If the ambient temperature reaches 165° F, the fusible links melt, and the cover closes to block flames from the arrester. To reuse the arrester, replace the fusible links (sold separately).
For technical drawings and 3-D models, click on a part number.