Jun Industrial Valve Group is a professional Check Valve manufacturer. We manufacture stronger and easier-fitting check valve. Our check valves are good of non-return function. They are safe, reliable, and low obstruction of the liquid. They are also built to prevent backward flow and applicable to the medium of oil, and chemical, etc. The sealing is based on the self-weight of disc and the backward flow function. Our check valves can interrupt the medium and force liquid to flow in one direction only.