JB/T 8105.2-1999 The national standard GB 6308.2-86 "Metal Sealed Vacuum Gauge Joints" was adjusted to the industry standard JB/T 8105.1-95 "Metal 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 metal sealed vacuum gauge joints. This standard is applicable to metal sealed gauge joints for vacuum measurement in bakeable vacuum systems. This standard was first issued in 1986. JB/T 8105.2-1999 Metal Glue Sealed Vacuum Gauge Joints JB/T8105.2-1999 Standard download decompression password: www.bzxz.net

ICS 21.160
Machinery Industry Standard of the People's Republic of China
JR/T8105.1~8105.2-1999
Vacuum gauge connections
1999-07-12 Issued
State Machinery Industry Bureau
2000-01-01 Implementation
Machinery Industry Standard of the People's Republic of China
Metal seal conmectians of vacuum gauges
Metal seal conmectians of vacuum gauges This standard specifies the type, structural dimensions and technical requirements of metal seal vacuum gauge connections. This standard applies to existing pipe joints with metal end seals in bakeable protective systems. 2 Reference standards
JB/T#15.21999
The provisions contained in the following standards constitute non-technical provisions through standard pressure. This standard is valid for all versions, but may be revised. To ensure the performance of this standard, the following standards should be used: Ultra-high vacuum flange dimensions
CB:E60712-1085
GB/T6071.3-J985
Ultra-high vacuum flange dimensions
YR/T53311993www.bzxz.net
Iron silver aluminum quartz - alloy 4121
Type, structural dimensions and technical requirements
3.1 Type and structural dimensions of metal sealing pipe heads according to the drawing and table! Regulations, y
Figure-type
National Agricultural and Industrial Bureau approved 4
2-01-(implementation
3.2 The use of vacuum gauge pipe joints should comply with the provisions of GB/6071.2 when the enterprise is fully sealed, and its sealing performance complies with the provisions of GB/6071.3
3.1 Marking example
The nominal diameter of the gold-standard vacuum gauge pipe joint is 25mm, and the mark is: Gauge pipe joint 25JB/T8105.2-1999
3.1 The connection case between the method and the table is made in accordance with the 4J29 expansion joint specified in YB Hall 5231-1993. 3.5 The gas single of the gauge pipe joint is not greater than ×10Pa+1/S3.6 The high baking temperature of the pipe head is 450
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