This standard serves to inform cylinder valve users, buyers, sellers, manufacturers, and others in the safe and proper use of cylinder valves.
This standard covers cylinder valve design, manufacture, and use including performance requirements such as operating temperature limits, pressure range, and flow capabilities. It also includes requirements such as materials, inlet and outlet connections, cleaning, qualification and production testing, maintenance, and reconditioning.This standard also includes guidelines and requirements for the design, material selection, testing, and marking of cylinder valve protective caps. Except as noted in the last paragraph of this section, this standard is intended for valves for compressed gases packaged in U.S. Department of Transportation (DOT) and Transport Canada (TC) cylinders.