0657-0002 - Victor Oxygen Quick Connect with Flashback Arrestor (Torch End)

Technical Overview of the Victor 0657-0002 Assembly

The Victor 0657-0002 is a high-performance safety and convenience accessory designed specifically for oxy-fuel welding and cutting applications. This assembly functions as a multi-purpose device, integrating a flashback arrestor, a reverse flow check valve, and a quick-disconnect coupling into a single, compact unit. Engineered for the oxygen supply line, it is typically installed at the torch inlet, providing the operator with immediate protection against the hazards of reverse flow and flashbacks while simultaneously facilitating rapid equipment changes.

Constructed from high-quality brass, the assembly is built to withstand the rigors of industrial environments. The internal flashback arrestor utilizes a sintered metal filter to quench flames before they can travel back into the hose or regulator, a critical safety requirement in heavy-duty cutting operations. The reverse flow check valve acts as a primary defense against the accidental mixing of oxygen and fuel gases in the hose, which is a common precursor to flashbacks. The quick-disconnect mechanism employs a precision-machined locking system that ensures a gas-tight seal when connected and automatically shuts off flow when disconnected, preventing gas wastage and hazardous leaks.

This specific model is keyed and color-coded for Oxygen service (Green/Right-Hand Thread) to comply with industry safety standards and prevent cross-connection with fuel gas lines. The standard 9/16"-18 "B" size fittings ensure compatibility with the vast majority of professional welding torches and hoses. By placing the safety devices at the torch end, the Victor 0657-0002 maximizes protection by arresting flames at the point of ignition, protecting the operator and the downstream equipment.

Specifications and Compliance

The unit is designed to operate efficiently within standard oxygen pressure ranges used in cutting and welding, typically up to 145 PSIG. It meets or exceeds applicable safety standards for gas welding equipment. The flow capacity is engineered to support standard cutting attachments and welding nozzles without causing significant pressure drops that could affect flame stability. Maintenance personnel should regularly inspect the quick-connect seals and the arrestor for signs of wear or carbon buildup to ensure continuous reliable operation.