JB/T 969-1967 T-type attached threaded pipe fitting JB/T969-1967 standard download decompression password: www.bzxz.net

The First Machinery Industry Department of the People's Republic of China Standard T-type Attached Threaded Pipe Fittings
JB969-67
This standard is applicable to hydraulic transmission pipelines of petroleum-based viscous liquid media, and can also be used in lubrication pipelines of similar media. The working temperature is between -25 and +80℃. The working pressure is divided into three levels: Z-medium pressure level, pg=25~80kgf/cm*, Zg-medium and high pressure level, pg=80~160kgf/cmG-high pressure level, pg=160~320kgf/cm2. Wrench size S,
Wrench size S:
Marking example,
Wrench size S, www.bzxz.net
Wrench size S2
Reducing type
Basic type, steel pipe outer diameter Dout = 10mm: T-type attached pipe joint G10JB969-67 Reducing type, steel pipe outer diameter Dout = 28mm, outer diameter dout = 22mm after reduction, number of reducing pipes is 2, medium and high pressure level: T Type attached pipe joint Zg28/22 (2) JB969--67 If zinc or cadmium plating is required, it is G10JB969-67Zn or Zg28/22 (2) JB969-67Cd Casting and Forging Machinery Research Institute proposed
January 1, 1968
Permitted
Working pressure
Outer diameter of steel pipe
Reducing type
M27×2| |tt||M33×2
M42×2
M48×2
M60×2
JB969-67
Weight of each 1000 sets kg~
Part number Part name
Pipe joint
O-ring seal
Pipe joint body
Sealing gasket
Reducing pipe
JB96 9--67
Parts List
Nominal size of parts under various outer diameters of steel pipes 10
D18×1
10/6|14/10
Standard number
333-66
The material of the seamless steel pipe is No. 15 steel, the precision is ordinary grade, and the wall thickness is selected according to the recommendation of the JB/Z95-67 Guiding Technical Document for Seamless Steel Pipes for Hydraulic Systems.
The thread size d of the matching screw hole is in accordance with the provisions of GB196-63, and its manufacturing precision is manufactured according to the 2a grade in GB197-63. The tolerance of the non-verticality of the end face of the screw hole matching the sealing gasket (Part 5) to the center line of the thread d is 0.1. When individual users produce the pipe joint in single pieces or small batches, in order to facilitate their production conditions, slight modifications are allowed in the structure. For details, please refer to the provisions of JB/Z97--67. 328
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