Industrial Fittings. General Purpose Metal Butterfly Valves

This technical specification addresses the fundamental requirements for metal butterfly valves utilized across various industrial applications. It establishes comprehensive criteria regarding dimensional specifications, pressure ratings, and material compatibility essential for ensuring operational reliability and safety in fluid control systems. The document outlines detailed performance metrics including leakage rates, torque requirements, and testing procedures necessary for quality assurance. It covers design considerations for both lug and wafer styles, specifying parameters for the valve body, disc assembly, and actuator interface. The standard provides guidance on surface treatment and coating requirements to enhance durability in diverse operating environments. It serves as a reference for manufacturers and users to achieve interchangeability and consistent performance in piping networks. By adhering to these guidelines, stakeholders can ensure that selected valve assemblies meet rigorous industry benchmarks for functionality and longevity.