ANSI/ISA-75.08.03:2001(R2025)

ANSI/ISA-75.08.03-2001 (R2025), Face-to-Face Dimensions for Socket Weld-End and Screwed-End Globe-Style Control Valves (Classes 150, 300, 600, 900, 1500, and 2500), specifies the face-to-face dimensions for socket weld-end and screwed-end globe-style control valves across various pressure classes (150 to 2500). It covers valve sizes from 1/2 inch to 4 inches for socket weld ends and up to 2 1/2 inches for screwed ends, providing standardized short and long dimension options to aid piping design while advising confirmation with manufacturers. This standard includes dimensional tables, references to related standards and an informative annex on metric valve sizes. It also details the committee members involved in its development and reaffirmation, emphasizes safety and patent considerations and encourages ongoing review and international unit system integration.