0657-0079 - Victor FBHC-ORC High Flow Oxygen Flashback Arrestor, Regulator Mount, C-Size

Technical Overview

The Victor FBHC-ORC High Flow Flamebuster (SKU: 0657-0079) is a specialized safety device engineered for industrial oxy-fuel applications requiring gas flow rates that exceed the capacity of standard flashback arrestors. Part of the FBHC (Flashback High Capacity) series, this unit is specifically configured for Oxygen service and features a Regulator Mount design. A distinguishing technical characteristic of this model is its C-Size (7/8"-14) thread connection, which differentiates it from standard B-Size (9/16"-18) equipment. This larger port size is essential for minimizing pressure drop across the device during high-demand operations such as heavy scarfing, lancing, or heating with large multi-flame nozzles.

Internally, the FBHC-ORC integrates dual safety mechanisms. First, a Reverse Flow Check Valve prevents the backflow of gases, effectively mitigating the risk of mixed-gas explosions in the regulator or supply line. Second, a Sintered Stainless Steel Flame Barrier acts as a heat sink to quench the flame front of a flashback, preventing it from entering the upstream equipment. The device is rated for a maximum inlet pressure of 125 PSIG for Oxygen. The brass body construction ensures mechanical integrity and resistance to deformation under industrial usage conditions. Users must verify that their regulator and hose connections utilize C-Size fittings before installation, as this unit is not compatible with standard light-to-medium duty equipment without adapters.