GB/T 12221-1989

Abolished

Metal valves for use in flanged pipe systems—Face-to -face and centre-to-face dimensions

法兰连接金属阀门结构长度

Standard Type

GBT

ICS

23.060

CCS

J16

Status

Abolished

Issue Date

1990-01-04

Implementation

1990-12-01

Centralized Committee

N/A

Issuing Authority

N/A

Application Summary AI generated

This standard specifies the face-to-face and centre-to-face dimensions for metal valves used in flanged pipe systems. It is applied in the design, manufacturing, and procurement of industrial valves to ensure interchangeability and proper fit within piping networks. The standard is primarily used in fluid handling industries, such as water supply, oil and gas, and chemical processing, where flanged connections are common.

Related Standards

GB/T 12241-2005 Safety Valves-General Requirements GB/T 12223-2005 Part-turn valve actuator attachments GB/T 12243-2005 Spring loaded safety valves GB/T 12222-2005 Multi-turn valve actuator attachments GB/T 19672-2005 Specification of pipeline valves GB/T 12221-2005 Metal valves-Face to face,end to end,center to face and center to end dimensions GB/T 12242-2005 Performance Test Code-Pressure Relief Devices GB/T 17213.7-1998 Industrial-process control valves--Part 7:Control valve data sheet

Transparency note: The application summary and key sentences on this page were automatically generated by AI from the standard's original text. This content has not been human-verified and should not be used for compliance or regulatory purposes. Always refer to the official standard document from the issuing authority.