JB/T 5278.2-1991 Copper wire sealed bakeable vacuum flange

This standard specifies the structural dimensions and technical requirements of wire-sealed vacuum flanges. This standard applies to the vacuum flange connection types specified in JB 5278.1. JB/T 5278.2-1991 Copper wire-sealed bakeable vacuum flanges JB/T5278.2-1991 Standard download decompression password: www.bzxz.net

Mechanical Industry Standard of the People's Republic of China
Copper wire sealed bakeable vacuum flange
Flange structure dimensions
Subject content and scope of application
This standard specifies the structure dimensions and technical requirements of copper wire sealed vacuum flanges. This standard applies to the vacuum flange connection type specified in JB5278.1. Reference standards
GB1220
Technical conditions for stainless acid-resistant steelwwW.bzxz.Net
Nominal diameter of vacuum flange
Copper wire sealed bakeable vacuum flange
3 Flange structure and dimensions
Flange structure and dimensions are specified in the following figure and table. Technical requirements
Connection type
The nominal diameter of the flange shall comply with the provisions of GB6070.1. 4.1
4.2 The knife-edge sealing surface of the flange shall not have scratches, marks or other defects that affect the sealing performance. 4.3 The flange is made of 1Cr18Ni9Ti stainless steel specified in GB1220. The Ministry of Machinery and Electronics Industry approved JB5278.2-91 on January 1, 1991. Implemented on July 1, 1991. T-type flange. C uniform distribution. A-type flange. JB 5278.2—91
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