Clapet anti-retour pare flamme gros débit AD ou PROPANE - EN 730-1

High-flow flashback protection for professional gas installations

In welding, cutting and heating workshops, reliable gas-line protection plays a major role in maintaining a dependable working environment. The LE LORRAIN 900 323 high-flow flashback arrestor check valve is designed for professional installations operating with acetylene or propane.

Its high-flow configuration is suited to installations requiring a substantial gas supply. It is designed for professional gas networks and equipment where strong gas-flow capability must be combined with dedicated protective functions.

Non-return and flame-arresting functions

This device combines two protective functions for combustible-gas circuits:

• Non-return function: helps prevent reverse gas flow within the circuit.
• Flame-arresting function: helps protect the installation against flame propagation towards the upstream gas system.

This combination makes the unit suitable for professionals working with oxy-fuel welding, cutting, brazing and heating equipment supplied with combustible gas.

EN 730-1 compliant

The LE LORRAIN high-flow flashback arrestor is specified as compliant with EN 730-1. This makes it suitable for professional installations requiring equipment designed for the protection of gas circuits used with thermal processes.

Designed for high-flow applications

The high-flow version is aimed at installations requiring sustained gas delivery. It is particularly relevant for industrial workshops, central gas systems and intensive cutting or heating applications involving equipment with higher gas consumption.

When integrated into a correctly sized installation, this flashback arrestor supports gas-line protection while meeting the flow requirements encountered in professional production environments.

Technical specifications

• Product: high-flow flashback arrestor check valve
• Brand: LE LORRAIN
• Manufacturer reference: 900 323
• Gas: acetylene or propane depending on installation
• Version: high flow
• Functions: non-return and flame arresting
• Specified standard: EN 730-1
• Applications: oxy-fuel welding, oxy-fuel cutting, brazing and professional heating

Why choose the LE LORRAIN high-flow flashback arrestor?

In workshops where gas equipment operates every day, each component in the supply line deserves careful selection. The LE LORRAIN 900 323 combines a high-flow design, two protective functions and specified compliance with EN 730-1.

Equip your professional gas installation with a high-flow flashback arrestor designed for demanding applications and order the LE LORRAIN 900 323 from HD SOUDAGE.