JB/T 5211-1991 Gate valve seat
Basic Information
Standard ID:
JB/T 5211-1991
Standard Name: Gate valve seat
Chinese Name:
闸阀阀座
Standard category:Machinery Industry Standard (JB)
state:Abolished
Date of Release1991-07-22
Date of Implementation:1992-07-01
Date of Expiration:2008-07-01
standard classification number
Standard Classification Number:Machinery>>General Parts>>J16 Valve
Publication information
publishing house:Mechanical Industry Press
Publication date:1992-07-01
other information
drafter:Lu Peiwen, Zhang Huayou, Hong Miancheng, Wang Jingxin
Drafting unit:Hefei General Machinery Research Institute and Beijing Valve Research Institute of the Ministry of Machinery and Electronics Industry
Focal point unit:Hefei General Machinery Research Institute, Ministry of Machinery and Electronics Industry
Proposing unit:Hefei General Machinery Research Institute, Ministry of Machinery and Electronics Industry
Publishing department:Machinery Industry Electronics Industry Ministry
Introduction to standards:
This standard specifies the structural type, size and technical requirements of gate valve seats. This standard is applicable to cast steel gate valves with nominal pressure pN1.6~6.4MPa and nominal diameter DN50~300mm. JB/T 5211-1991 Gate Valve Seat JB/T5211-1991 Standard download decompression password: www.bzxz.net
Some standard content:
Mechanical Industry Standard of the People's Republic of China
Gate valve seat
Subject content and scope of application
This standard specifies the structural type, dimensions and technical requirements of the gate valve seat. This standard is applicable to cast steel gate valves with nominal pressure plus 1.6~6.4MPa and nominal diameter D50~300mm. 2 Reference standards
GB1804
3 Types and dimensions
Technical conditions for high-quality carbon structural steel
Tolerances and fits Limit deviations of dimensions without tolerances The structural type of the gate valve seat is shown in the figure, and the dimensions are as specified in the table. 'D
Spray welding iron-based powder
1×45°
Approved by the Ministry of Machinery and Electronics Industry on July 23, 1991D
D, (f9)
JB5211—91
Implemented on July 1, 1992www.bzxz.net
Nominal pressure part
Technical requirements
1.6, 2.5
4.1Material is 25, technical requirements are in accordance with GB699. JB5211—91
4.2Tolerance grade of dimensions without tolerance is in accordance with IT14 specified in GB1804. Additional remarks:
This standard is proposed and managed by the Hefei General Machinery Research Institute of the Ministry of Machinery and Electronics Industry. 58
This standard is drafted by the Hefei General Machinery Research Institute of the Ministry of Machinery and Electronics Industry and the Beijing Valve Research Institute. The main drafters of this standard are Lu Peiwen, Zhang Huayou, Hong Miancheng and Wang Jingxi.
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