JB/T 971-1977 Welded right angle pipe joints
Basic Information
Standard ID:
JB/T 971-1977
Standard Name: Welded right angle pipe joints
Chinese Name:
焊接式直角管接头
Standard category:Machinery Industry Standard (JB)
state:in force
Date of Release1977-01-17
Date of Implementation:1977-05-01
standard classification number
Standard Classification Number:Machinery>>General Parts>>J15 Pipe Accessories
Publication information
other information
Introduction to standards:
JB/T 971-1977 Welded right angle pipe joint JB/T971-1977 Standard download decompression password: www.bzxz.net
Some standard content:
The First Machinery Industry Department of the People's Republic of China Standard Welded Right Angle Pipe Joint
JB971-77 wwW.bzxz.Net
Replaces JB971-67
This standard applies to right angle pipe joints in oil-based pipeline systems, with a nominal pressure of 320kgf/cm2 and a working temperature of -25~80℃.
Marking example:
Tube outer diameter D. 28mm right angle pipe joint: pipe joint 28JB971--77
The First Machinery Industry Department of the People's Republic of China issued the First Machinery Industry Department Standardization Research Institute proposed to implement on May 1, 1977
Jinan Foundry and Forging Machinery Research Institute and others drafted 331
Tube outer diameter milk
Nominal diameter
JB971-77
Standard number
Wrench size
Technical Technical conditions are in accordance with the provisions of JB100377
JB2099-77
JB981-77
GB1235-78
Rubber [-4
M12×1.25
M36×2
M42×2
M52×2
M60×2
The material of the seamless steel pipe is 15, 20 steel, and the precision is ordinary grade. 332
JB989-77
Joint body
Tip: This standard content only shows part of the intercepted content of the complete standard. If you need the complete standard, please go to the top to download the complete standard document for free.