JB/T 4079-1991
Type and basic parameters of high vacuum butterfly valve (English Version)
- Standard No.
- JB/T 4079-1991
- Language
- Chinese, Available in English version
- Release Date
- 1991
- Published By
- Professional Standard - Machinery
- Status
- 2005-04
- Replace By
- JB/T 6446-2004
- Latest
- JB/T 6446-2004
- Scope
- This standard specifies the type and basic parameters of high vacuum butterfly valves. This standard applies to high vacuum butterfly valves used to open or block air flow in 1.3*10^(-5)~1.0*10^5Pa vacuum systems.
JB/T 4079-1991 history
- 2004 JB/T 6446-2004 Vacuum valves
- 1991 JB/T 4079-1991 Type and basic parameters of high vacuum butterfly valve
JB/T 4079-1991 Type and basic parameters of high vacuum butterfly valve was changed to JB/T 6446-2004 Vacuum valves.
