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DESCRIPTION | |
The model 8492 is an ideal choice where stainless steel is desired as the material of construction. It may be used on flammable gases other than those approved by U/L providing the materials of construction are compatible. When installed in a line containing a flammable gas these units will prevent reverse flow, stop, and extinguish a flashback. The unit shuts off the flow of gas in the event of a flashback or reverse flow in excess of 7 psig. Re-setting is automatic when the down stream pressure is relieved. There is no need to open the gas line and no disassembly or special tools are required. | |
FEATURES | |
• U/L listed 23Y5 for: | |
Acetylene @15.0 psig Hydrogen/air @ 50.0 psig LPG @50.0 psig Oxygen @143.0 psig |
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• May be used on compatible corrosive flammable gases. • Reusable – can be reused after a flashback without opening the system or removing from service. • Stainless steel flame barrier positively extinguishes flame within the housing. • Checks reverse flow and provides positive shut-off of reverse flow over 7 psig. • Thermal cut-off. • Built-in 100 micron filter on inlet. • High flow capacity. |
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MATERIALS OF CONSTRUCTION | |
Body: Alloy 360 brass Internals: stainless steel Flame barrier: stainless steel Elastomers: Neoprene |
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WORKING PRESSURE (U/L 23Y5) | |
Gas |
Pressure psig
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Acetylene |
15.0
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Hydrogen/air |
50.0
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Methane/LPG |
50.0
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Oxygen |
143.0
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HOW TO ORDER | ||||||||||||
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FLASHBACK APPROVALS | ||||||||||||||
U/L listed 23Y5 | ||||||||||||||
ISO 5175.BS 6158 | ||||||||||||||
EN 730 (BAM/DIN) | ||||||||||||||
AS 4603 | ||||||||||||||
TYPICAL LEAD-TIME 1-5 DAYS |