JB/T 8105.1-1999 The national standard GB 6308.1-86 "Rubber Sealed Vacuum Gauge Joints" was adjusted to the industry standard JB/T 8105.1-95 "Rubber Sealed Vacuum Gauge Joints" in 1995. This standard is a revision of it. Only editorial changes were made during the revision, and the main technical content remained unchanged. This standard specifies the type, structural dimensions and main technical requirements of rubber sealed vacuum gauge joints. This standard applies to rubber sealed measuring gauge joints for vacuum measurement in vacuum systems. This standard was first issued in 1986. JB/T 8105.1-1999 Rubber Sealed Vacuum Gauge Joints JB/T8105.1-1999 Standard download decompression password: www.bzxz.net

ICS 21.160
Machinery Industry Standard of the People's Republic of ChinabzxZ.net
JR/T8105.1~8105.2-1999
Vacuum gauge connections
1999-07-12 Issued
National Bureau of Machinery Industry
2000-01-01 Implementation
—Scope
Machinery Industry Standard of the People's Republic of China
Rubber sealed vacuum gauge connections
Hubbrryralconnection ofvacuumgaugesThis standard specifies the type, structural dimensions and technical requirements of rubber-sealed vacuum gauge connections. This standard is applicable to basic gauge connections with rubber seals for direct air measurement in vacuum systems. 2 Reference standards
JB/8105.1—1909
Reference content R11.1·43
The provisions contained in the underlined standards shall constitute the meaning of this standard in conjunction with their use in this standard. When this standard is revised, the versions shown are valid. All new versions will be revised. When using this standard, the possibility of using the latest version should be explored by using the following reference standards: (T49R2-1985 Tight vacuum quick release flange
GD:T4983—1985 Tight point vacuum quick release flange GB/T60T0—1 995 point hollow flange
3 type and structural dimensions and technical requirements
1 rubber seal true forget load pipe joint type is divided into type 1, type 2, type 4, its structural type suction main structural dimensions see figure"-attached 2 general table! Now,
common diameter
allow: 11 according to the first standard
State Machinery Industry Bureau 1999-07-12 approved H
M40×2
2000-01-0! Implementation
[B105.L1999
Figure 3 type
3.2I-type joint is a quick-connection type, and its quick-connection flange shall comply with the provisions of GB/T4982 and GB/T4983.3II-type joint is a flange connection type, and its flange shall comply with the provisions of GB/T6070. 3.4Button flange is a welding type, and its connection type and pipe length can be selected and determined according to the equipment structure. 3.5Marking example
Quick-connection type pipe joint with a nominal diameter of 16mm is marked as: pipe joint 16-TJB.T8105.1—19993.6After assembly The leakage rate of the joint is not less than 7×10Pa·L5 yuan 3. The requirements for the mold modification of the T-type pipe joint are shown in Appendix A (Appendix to the standard) JB/8105.1-1999
Appendix A
(Appendix to the standard)
The rubber seal for the empty pipe swing head
The rubber seal size is shown in the figure AI. AI
Nominal diameter
A2 The rubber seal ring is self-draining, and there should be no defects such as pores, cracks, and impurities. The seal ring material is made of dirty rubber or bottle rubber. 03
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