ANSI/ISA-75.08.04:2001(R2025)

ANSI/ISA-75.08.04-2001 (R2025), Face-to-Face Dimensions for Buttweld-End Globe-Style Control Valves (Class 4500), specifies face-to-face dimensions for Class 4500 buttweld-end globe-style control valves ranging from 1/2 inch to 8 inches with top and cage guiding. It aims to provide uniform valve dimensional data to assist users in piping design without favoring any manufacturer.This standard includes a table of nominal valve sizes with corresponding face-to-face dimensions and tolerances, references related to the American Society of Mechanical Engineers (ASME) and ISA standards and an informative annex on metric-sized valve dimensions. It also details the committee members involved in their development and reaffirmation, emphasizes safety and patent considerations and encourages ongoing review and feedback.