CB 316-1995 Specification for threaded joints for high pressure pipes CB316-1995 Standard download decompression password: www.bzxz.net

China State Shipbuilding Corporation Department Standard
CB316:95
Specification for threaded joints of high-pressure air pipes
Published on December 19, 1995
Published by China State Shipbuilding Corporation
Implementation on August 1, 1996
1 Scope
1.1 Content of the above topic
China State Shipbuilding Corporation Department Standard
Specification for threaded joints of high-pressure air pipes
C 316-95
Classification number: 1155
Replaces CB316-64
This specification specifies the requirements, quality assurance and delivery preparation for threaded joints (hereinafter referred to as joints) for high-pressure air pipes. 1.2 Scope of application
This specification applies to ship piping systems where the medium is compressed air. 2 Reference documents
GB19781
3 Requirements
Thread eyebrow, shoulder distance, back fold, chamfer
General thread tolerance and fit (shoulder diameter 1~355mm) 3.1 Structure and specification size
3.1.1 The basic parameters of the joint types are as shown in Table 1. Table
Intermediate
Butt joint bzxZ.net
Indirect joint
Type: Inlet joint
China State Shipbuilding Corporation 1995-12-19 Approved by the country
Nominal strength PN Nominal diameter IN
Pipe material
Stainless steel
1996-08-01 Implementation
3.1.3 The structural dimensions of type B joints are as shown in Figure 2 and Table 3, CB 316-95
1-smooth joint (06>, 2-screw-in joint (0%): 3-jacket nut (04):
4-gasket (08), 5-opening joint (07) Table 3
Nominal diameter
Pipe outer diameter
M45×2
Structural dimensions of C-type joints are as shown in Figure 3 and Table 43.1.4
Wrench opening size
1-screw-in joint (05): 2-flat shoulder joint (C613-gasket (09) 32
Nominal diameter
Pipe outer diameter
CB 316—95
M45×2
M50×2
3.1.5The structural dimensions of the D-type joint shall be in accordance with Figure 4 and Table 5. Figure 4
Food Hand Sign
Rule→s
1—Outer Jacket Female (112—Piece (08:3 Flat Open Joint (02 Table 5
Public Diameter
Pipe Outer Diameter
M33×2
Opening Scale
3.1.6The structural dimensions of the E-type joint shall be in accordance with Figure 5 and Table 6.CB 316-95
—Flat shoulder joint (07) = 2 gasket (08): 3—jacket nut ((4) Table 6
International diameter
Nude outer diameter
M45×2
M52×2
3.1.7A, L-type joint jacket nut (01) knot tree size according to Figure 6 dynamic table 7s0t121
wrench opening size
jacket
butt connection outside:
Nude connection
3. 1. 2A type joint structure dimensions according to Figure 1 and Table 2CB 316-95
Continued Table 1
Nominal pressure PN Nominal diameter DN
10--32
1--threaded joint (03); 2—A 1.1 Flat shoulder joint (C2)
Nominal diameter
Outer diameter of pipe
Handle and port dimensions
Tube material
Stainless steel pipe
CB 316-95
2.1.8 Flat shoulder joint (02) of A, I) type joints shall be in accordance with Figure 7 and Table 8. C×45*
CB316--95
3.1.9 Threaded joint (03) of A type joint shall be in accordance with Figure 8 and Table 9. - S (12)
Hexagonal head
3.1.10 Structural dimensions of external nut (04) of B, F type joints shall be in accordance with Figure 9 and Table 10 s(12)
M45×2
M61×2
Angle head
CB316-95
3.1. 11B, Screw-in connector (05) of C-type connector shall be in accordance with Figure 10 and Table 11.95
ME2×?
Big angle
CB31695
2.1.12B. Flat connector (06) of C-type connector shall be in accordance with Figure 11 and Table 12.1X45
Nominal diameter
3. 1. 13B, Flat shoulder connector (07) of E-type connector shall be in accordance with Figure 12 and Table 139.5x15
Nominal common derivative
CB316-95
2.1.14 The structural dimensions of the gasket (08) shall be in accordance with Figure 13 and Table 14.5
Nominal common derivative
Applicable joint
Number of teeth on single side.1
3.2 Marking example:
CB 316-95
Lap-welded intermediate joint with nominal pressure of 25.0MPa and nominal diameter of 1Unum: intermediate joint A25C010CB316-95
Butt-welded intermediate joint with nominal pressure of 25.0MPa and nominal diameter of 1Gmmi: intermediate joint B250010CB316-95
Nominal diameter is 10mm, suitable for lap-welded intermediate joint, lap-welded outer sleeve joint's jacket nut (u1): jacket nut_01-10CB316-95
: Nominal diameter is 10mm, suitable for lap-welded intermediate joint Type 1 gasket: gasket 08-10
3.3 Material
CB316 95
3.3.1 The materials of joint parts shall be as per Table 15.
Part name
B, C, E Flat shoulder joint
AH, D, upper outer screw code
AD Flat start joint
B, C family plug-in joint
A Butterfly joint
Ultra-low carbon stainless steel
Aluminum and copper
High-quality carbon purple steel
QAL9--2
3.3.2 The mechanical properties and chemical composition of ultra-low carbon stainless steel shall meet the following requirements: a. Mechanical properties: -4n0MPa, G650MPa, o,-25%L. Chemical composition: as per Table 16.
Chemical elements
3.4 ​​Properties
Alkaline content ratio·%
2: ~-26
2. 5 --3. 6
3.4.1 Thread tolerance according to 6H/6g of GEI97. 3.4.2 Thread bending and chamfering CB3
Chemical elements
Alkaline content ratio
3.4.3 Annealing treatment is carried out after the sheet is processed. 3.4.4 Strength test is carried out with hydraulic pressure Pe=37.5MPa. The special pressure is 1uinii and no penetration is allowed. Standard
GB4429—84
GH699—88
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