Mueller Co. Model 71 Muessco Check Valve, size 2, is a one-way flow-control valve designed to prevent backflow in piping systems. This device is part of Mueller’s Muessco line, with Model 71 identifying its specific design within that family. A check valve permits flow in the forward direction and automatically seals to block reverse flow when pressure conditions reverse, helping to maintain system integrity by preventing unwanted backflow.
