Acetylene valves are mostly used in the industries of gas and liquid, specifically where controlling the flow in a detailed way is necessary. Sherwood's acetylene valves are exact and accurate. These products allow for the users to be in complete control. Acetylene valves have several uses: welding, cutting, and heat treatment, to chemical and polyethylene production. For the safety of employees in the aforementioned industries, working cylinders need to remain compressed in a consistent manner. This is where acetylene valves come in. CGV sells wrench operated and handwheel acetylene valves, as well as all accompanying accessories our customers may need. Do not open any acetylene cylinder valve more than 1.5 turns. Let the acetylene flow naturally & close off quickly in case of an emergency.