0690-0012 - Victor Regulator Mount Check Valve Pair (Oxygen & Fuel)

Victor 0690-0012 CRO/CRF Regulator Mount Check Valve Pair

The Victor 0690-0012 CRO/CRF Check Valve Pair is a fundamental safety component designed for industrial oxy-fuel systems. This set includes two reverse flow check valves: one designated for Oxygen (CRO) and one for Fuel Gas (CRF). These valves are engineered to mount directly onto the outlet bushings of standard gas regulators, providing an immediate barrier against the reverse flow of gases into the regulator body and cylinders. Reverse flow is a primary cause of mixed-gas explosions, and installing check valves at the regulator is a recommended practice to mitigate this risk.

Constructed from high-quality brass, these valves are built to withstand the rigors of daily industrial use. They feature standard B-Size (9/16"-18) threads, ensuring compatibility with the vast majority of industrial regulators and hoses. The internal mechanism utilizes a spring-loaded valve that remains open during normal flow but snaps shut instantly if downstream pressure exceeds upstream pressure, effectively blocking backflow. It is important to note that while these check valves prevent reverse flow, they do not stop a flame front (flashback); for complete protection, they should be used in conjunction with flash arrestors.

The 0690-0012 set is designed for high-flow capacity to minimize pressure drop, ensuring that your torch performance is not compromised while safety is maintained. The valves are clearly marked or color-coded to prevent cross-connection during installation. Regular testing of check valves is recommended to ensure the internal springs and seating surfaces remain functional and free of debris.