CV-21L - Uniweld CV-21L Torch Check Valve - Fuel Gas B-Fitting

Essential Safety for Oxy-Fuel Operations

The Uniweld CV-21L Torch Check Valve is a critical safety component designed to protect welders and cutting operators from the dangers of reverse gas flow. In oxy-fuel systems, unequal pressures can sometimes cause one gas to back up into the other gas line, creating a volatile mixture within the hose. This check valve effectively blocks that reverse flow at the torch inlet, ensuring that fuel gas remains flowing in the correct direction.

Precision Engineering

Manufactured by Uniweld, a leader in gas equipment, the CV-21L is machined from high-quality brass for durability and corrosion resistance. It features a low opening pressure mechanism, which means it provides maximum safety without significantly restricting the flow of gas or affecting flame performance. The valve is designed with standard "B" size 9/16"-18 Left Hand threads, making it compatible with the vast majority of industrial cutting torches, welding handles, and heating attachments used in North America.

Easy Installation and Identification

Safety equipment is only effective if it is used correctly. The CV-21L is designed for easy installation directly onto the torch inlet fittings. The nut is notched, following the industry standard for fuel gas connections, preventing accidental installation on the oxygen line. Its compact profile adds minimal length and weight to the torch, ensuring that the operator's dexterity and comfort are not compromised during long shifts.

Application

This check valve is rated for use with all common fuel gases, including Acetylene, Propane, Propylene, and Natural Gas. It is an indispensable accessory for any manual oxy-fuel setup, from heavy-duty scrap cutting to precision brazing applications.