Flanged Butterfly Valve Dimensions - Complete Reference Guide

Flanged butterfly valves are essential components in industrial piping systems, offering reliable flow control with compact design and easy installation. These valves feature flanged connections on both ends, allowing them to be bolted directly between pipe flanges for secure, leak-proof operation.

Understanding proper dimensions is critical for successful valve selection and installation. Key dimensional specifications include face-to-face length, flange diameter, bolt circle diameter, and bolt hole patterns. These measurements must comply with industry standards such as ANSI, ASME, and API to ensure compatibility with existing piping systems.

Flanged butterfly valves are available in various pressure classes including Class 150, 300, and 600, each with specific dimensional requirements. The face-to-face length is particularly important as it determines the space needed between pipe flanges during installation.

Below you'll find comprehensive dimensional data, specification charts, and technical resources for flanged butterfly valves across different sizes, pressure ratings, and international standards. Use these references to select the correct valve dimensions for your specific application requirements.