JB/T 1954-1977 Compression-type straight-through reducer pipe fittings

JB/T 1954-1977 Compression-type straight-through reducer pipe fittings JB/T1954-1977 Standard download decompression password: www.bzxz.net

Standard of the First Machinery Industry Department of the People's Republic of China
Card sleeve type straight-through reducer pipe fittings
JB 195477
This standard applies to the card sleeve type straight-end reducer pipe fittings in the pipeline system with oil and gas as the medium. s
JB1975 77
JB982-77
JB1002-77
JB1981-77
JB1987—77
Marking example: Nominal pressure grade Z, ferrule-type straight-through reducer pipe fitting with pipe outer diameter of 18mm: Pipe fitting
Nominal pressure
kgf/cmzwwW.bzxz.Net
Pipe outer diameter
Nominal diameter
Z18 JB1954—77
M10×1
M18×1.5l
M27×2
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 8th Standardization Institute of the First Machinery Industry Ministry. May 1, 1977. Shanghai Mechanical and Electrical Design Institute, Chongqing Heavy Duty Truck Research Institute and others drafted the Dalian Combined Machine Tool Research Institute.
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