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Maximum Protection with Flashback arrestor valves
Discover LE LORRAIN flashback arrestor valves, designed to offer maximum safety for the user and the installation. Meeting EN 730-1 and ISO 5175-1 standards, these devices are essential for preventing flame flashbacks and gas leaks. They are equipped with advanced technology such as sintered metal valves and fusible parts.


Flashback arrestor valves THERMOSTOP Innovation for Increased Safety
The unique LE LORRAIN THERMOSTOP valve system integrates additional thermal safety, by stopping gas and flame in the case of flame return, thanks to a fusible metal part which melts at a critical temperature. This double protection guarantees automatic gas supply cut-off, establishing a new standard in welding safety.
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Adaptability and Reliability
Our valves are equally suited to installation at the torch inlets or at regulator outlets, and are designed for flexible, safe installation. Their manufacturing quality ensures they are durable and reliable, even in the toughest conditions.

Why choose LE LORRAIN valves?
By choosing LE LORRAIN flashback arrestor valves, you are choosing protection against welding dangers. Our commitment to safety, innovation and meeting international standards ensures stress-free, efficient operations.