Mueller Model 58 stem specialty Butterfly Valve

Mueller Steam Specialty Butterfly Valves are designed for ANSI Class 125/150 flanges and in compliance with MSS-SP-25, MSS-SP-67, API-609 and MIL-V-22122C ships, Type 1, Classes A-D. MSS Butterfly Valves are also approved by the American Bureau of Shipping (ABS).

The Mueller Steam Specialty Butterfly Valve offers numerous features, such as blow out proof stems, primary and secondary stem seals and multiple combinations of materials and configurations.