JB/T 6381.4-1992 Cone seal welded straight-through cone thread pipe fitting

This standard specifies the classification of cone seal welded straight-through cone thread pipe fittings. JB/T 6381.4-1992 Cone seal welded straight-through cone thread pipe fittings JB/T6381.4-1992 Standard download decompression password: www.bzxz.net

Mechanical Industry Standard of the People's Republic of China
Cone Seal Welded Straight Taper Thread Pipe Fittings 1 Subject Content and Scope of Application
This standard specifies the classification of cone seal welded straight taper thread pipe fittings. JB/T6381.4—92
This standard is applicable to cone seal welded straight taper thread pipe fittings in pipeline systems with oil and gas as the medium, with a nominal pressure of PN ≤ 16MPa and a working temperature of -25~+80℃. 2www.bzxz.net
Cited standards
GB1414
GB2346
GB5865
GB/T12716
JB/T6386
3Product categories
Ordinary thread size series for pipe screw ends Hydraulic and pneumatic systems and components Nominal pressure series Lubrication systems and components Basic parameters
60° tapered pipe thread
Technical conditions for cone-sealed welded pipe fittings
3.1 The types and dimensions of cone-sealed welded straight-through tapered thread pipe fittings shall be in accordance with the requirements of the drawings and tables. Approved by the Ministry of Machinery and Electronics Industry on July 14, 1992 and implemented on July 1, 1993
Outer diameter of pipe
Marking method
Pipe joint
3.3 Marking example:
Z1 1/4
JB/T6381.492
JB/T6381.4
Standard number
Outer diameter of pipe, mm
Product name
Outer diameter of pipe D. Cone seal welded straight-through cone thread pipe joint with a pipe outer diameter of 20 mm: Pipe joint 20JB/T6381.4
Technical conditions
Technical conditions of cone seal welded straight-through cone thread pipe joint shall comply with the provisions of JB/T6386. Additional remarks:
This standard was proposed and submitted by the Xi'an Heavy Machinery Research Institute of the Ministry of Machinery and Electronics Industry. This standard was drafted by Xi'an Heavy Machinery Research Institute of the Ministry of Machinery and Electronics Industry. The main drafter of this standard is Zhao Hongzhang.
O-ring
11.2×1.8
11.8×2.65
23.6×2.65
36.5×2.65
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