WELDGAS Fuel Gas In-line Flashback Arrestor (FBA)
The WELDGAS Fuel Gas In-line Flashback Arrestor (FBA) provides reliable protection against dangerous reverse gas flow and flashbacks, ensuring safe welding and cutting operations for fuel gases such as acetylene and propane.
Key Features
Safety Protection: The arrestor combines a flame arrestor (FA), a spring-loaded non-return valve (NV), and a temperature-sensitive cut-off valve (TV) to prevent backflow and extinguish flashbacks before dangerous conditions arise
Standards Compliance: Certified according to DIN EN ISO 5175-1 and BS EN 730-1, ensuring it meets international safety requirements for fuel gas flashback arrestors
Construction: Made from stainless steel, the flame arrestor features a large surface area to safely extinguish flashbacks. A filter at the gas inlet protects the device from contamination, extending service life
Inline Design: Designed for inline installation in gas supply lines, suitable for pipeline outlets, single cylinders, or high-demand users such as gas cutting machines
Fittings and Flow Rates: Typically available with 3/8” BSP fittings, capable of handling fuel gases up to 68 m³/h (free flow) and compatible with acetylene and propane
Operating Conditions: Maximum ambient working temperature ranges from 60–70°C (140–158°F), suitable for typical fabrication and workshop applications
Practical Applications
Widely used in welding, cutting, and brazing setups where flashback prevention is critical.
Protects regulators, hoses, torches, and equipment from potentially explosive reverse gas flow.
Suitable for both professional industrial use and workshop environments, ensuring safety while maintaining efficient gas flow
Installation and Usage Notes
Can be mounted in any position/orientation, but only one piece of equipment should be connected per arrestor
It is recommended to perform annual checks of the non-return valve, body leak-tightness, and flow capacity, with replacements or servicing carried out by qualified personnel
The WELDGAS Fuel Gas FBA In-line is therefore a highly reliable safety device essential for any welding or cutting operation using fuel gases like acetylene or propane, ensuring both operator safety and equipment protection.