JB/T 1975-1977 Compression-type straight-through reducer body

JB/T 1975-1977 Compression Fittings JB/T1975-1977 Standard download decompression password: www.bzxz.net

Standard of the First Machinery Industry Ministry of the People's Republic of Chinabzxz.net
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
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
M36×2
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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