WESFA-30 - Western Enterprises FA-30 Regulator-Mount Flashback Arrestor Set

Comprehensive Safety for Oxy-Fuel Systems

The Western Enterprises FA-30 Flashback Arrestor Set is an essential safety component designed for industrial oxy-fuel welding and cutting operations. Engineered to mount directly onto gas regulators, this set provides a critical barrier between the downstream equipment (hoses and torches) and the high-pressure gas supply (regulators and cylinders). By preventing the reverse flow of gases and extinguishing flashbacks, the FA-30 mitigates the risk of catastrophic equipment failure and operator injury.

Dual-Action Protection Mechanism

This set incorporates two distinct safety mechanisms within a compact brass housing. First, internal check valves are designed to prevent the reverse flow of gases. Reverse flow can occur when one gas pressure overpowers the other, potentially creating a volatile mixture within the hose or regulator. Second, the unit features a sintered metal flame arrestor. In the event of a flashback—where a flame travels back up the hose—the arrestor absorbs the heat and extinguishes the flame front before it can ignite the mixed gases in the regulator or cylinder.

High-Performance Specifications

Despite its robust safety features, the FA-30 is engineered to maintain high performance. It supports a maximum cutting capacity of 10 inches, ensuring that gas flow is not significantly restricted during heavy-duty applications. The units are equipped with standard B-Size 9/16"-18 UNF fittings, making them compatible with the vast majority of industrial regulators used in North America. The set includes one arrestor for oxygen service (green, right-hand thread) and one for fuel gas service (red, left-hand thread), adhering to industry-standard color coding to prevent cross-connection.

Regulatory Compliance and Durability

Manufactured in the United States, the FA-30 is UL Listed, meeting rigorous safety and performance standards required for industrial environments. The solid brass construction ensures longevity and resistance to corrosion, while the compact design (7.125 inches in length) minimizes leverage on the regulator outlet. This product is suitable for use with oxygen and a variety of fuel gases, including acetylene, propane, and propylene, making it a versatile choice for diverse welding, laboratory, and fabrication settings.