0690-0011 - Victor Torch Mount Check Valve Set (Oxygen & Fuel)

Victor 0690-0011 CTO & CTF Torch Mount Check Valve Set

The Victor 0690-0011 CTO/CTF Check Valve Pair Pack is an essential safety component designed for industrial oxy-fuel cutting, welding, and heating applications. These check valves are engineered to prevent the reverse flow of gases from the torch into the hose, a condition that can lead to dangerous gas mixtures and potential equipment failure. The set includes two valves: one designated for oxygen service (CTO) and one for fuel gas service (CTF), ensuring comprehensive protection for both supply lines.

Constructed from high-quality brass, these valves are built to withstand the rigorous demands of industrial environments. They feature a spring-loaded mechanism that remains open during normal gas flow but closes instantly if downstream pressure exceeds upstream pressure, effectively blocking backflow. The valves are designed for Torch Mounting, meaning they install directly onto the inlet connections of the torch handle, placing the safety device as close to the point of use as possible. This configuration is widely preferred for its ability to stop reverse flow before it enters the hose system.

The 0690-0011 set utilizes standard B-Size (9/16"-18) threaded connections, making them compatible with the vast majority of professional cutting torches and welding handles in the North American market. The valves are clearly color-coded—green for oxygen and red for fuel gas (acetylene, propane, etc.)—and marked to facilitate correct installation and prevent cross-connection. While check valves are a critical safety measure, it is important to note that they do not stop a flame front (flashback); for complete protection, they are often used in conjunction with flashback arrestors.

Regular inspection and testing of check valves are recommended to ensure they remain free of debris and function correctly. The Victor 0690-0011 set offers a reliable, low-maintenance solution for maintaining safety standards in metalworking shops, construction sites, and fabrication facilities.