JB/T 1975-1977 Compression-type straight-through reducer body
Basic Information
Standard ID:
JB/T 1975-1977
Standard Name: Compression-type straight-through reducer body
Chinese Name:
卡套式端直通变径接头体
Standard category:Machinery Industry Standard (JB)
state:Abolished
Date of Release1978-10-01
Date of Implementation:1978-10-01
Date of Expiration:2005-04-15
standard classification number
Standard Classification Number:Machinery>>General Parts>>J15 Pipe Accessories
associated standards
Publication information
other information
Introduction to standards:
JB/T 1975-1977 Compression Fittings JB/T1975-1977 Standard download decompression password: www.bzxz.net
Some standard content:
Standard of the First Machinery Industry Ministry of the People's Republic of China
Compression-type end straight-through reducer body
24°±30
JB 1975—77
Rest√4
Marking example: Compression-type end straight-through reducer body with nominal pressure class B and pipe outer diameter of 14mm: Fitting body
Z14JB 1975--77
Nominal pipe
to outer diameter
cm D.
M10×1
M18 × 1.510| 23
M22 x 1.5/14
M27×2
8.510.5821
.822.5|14
M14 ×1.5]
M20 × 1.5
1.2|1.5M22×1.5
27.51641.62
M36×2bzxz.net
The technical conditions shall be in accordance with the provisions of JB1989--77. The First Machinery Industry Ministry of the People's Republic of China issued the First Machinery Industry Ministry Standardization Institute proposed 64
May 1, 1977
Shanghai Mechanical and Electrical Design Institute
Chongqing Heavy Duty Truck Research Institute, etc.
Dalian Modular Machine Tool Research Institute
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