CB 589-1995 Specification for high pressure air right angle stop valve with mounting plate CB589-1995 Standard download decompression password: www.bzxz.net

China State Shipbuilding Corporation Department Standard
CB589-95
High-pressure air right angle
Stop valve with mounting plate
1995-12-19 Issued
China State Shipbuilding Corporation Issued
199608--01 Implementation
1 Scope
China State Shipbuilding Corporation Department Standard
High-pressure air right angle stop valve with mounting plate Specification CB589 -95
Classification number: U52
Replaces CB589-67
1.1 Subject content
This specification specifies the requirements, quality assurance regulations and delivery preparation for high-pressure air cut-off valves with mounting plates (hereinafter referred to as cut-off valves). 1.2 Scope of application
This specification applies to right-angle cut-off valves for compressed air piping systems with nominal pressures of 20.0MPa and 25.0MPa. 2 Reference documents
GB 6C0—91
GB3C32—89
CE 316—95Www.bzxZ.net
3 Requirements
General technical conditions for ship piping fittings
Marking of ship piping accessories
Specifications for threaded joints of high-pressure air pipes
3.1 Structure and specification dimensions
3.1.1 The basic parameters of the stop valve shall be in accordance with Table 1. Table
Nominal pressure PN
Nominal diameter DN
3, 1.2PN20.0MP The structural dimensions of the stop valve shall be in accordance with Figure 1 and Table 2. China State Shipbuilding Corporation 1995:1219 Approved for manufacture and quality classification
Gaoyu Air
1996—08—01 Implementation
Nominal diameter
Structural dimensions
CE 589-95
Connection size
M39×2
M45×2
M60×2
3.1.3PN25.0MPa end reading structure size according to Figure 1 and Table 3.21
d, for the impact hand wheel
connection size
294250104 187: 84
10816888-92
311206
Note: Table
3.2 marking example
lubricant material is stainless steel
valve body material is nickel brass.
C 589-95
Connection size
[150160
411200160
1Y. 2G 1 9. 16
Nominal pressure is 20.0MPa, nominal diameter is 15mm, valve body material is nickel yellow steel with mounting plate commercial air stop valve: stop valve 2000E5H
CB589. : 95
Nominal positive force is 25.0MPa, nominal diameter is 2Cmm, valve body material is stainless steel with mounting plate high pressure air stop valve: stop valve 25020-
CB589--- 05
Nominal pressure is 25.0MPa, nominal diameter is 20mm. Valve body material is nickel back copper section with mounting plate Commercial pressure air stop valve cut-off valve 25G020-H
3.3 Materials
3. 3. 1 Main parts materials are as shown in Table 4.
Nickel copper
Aluminum bronze
C13589--·05
20MPa,25MPa
HNi56-3
Standard number
GR5232-85
QA110-3-1.5 GB4429-89
Ultra-low magnetic duplex
row stainless steel
stainless steel
bronze
LCr17Ni2
Standard No.
GB122(1—84
QAI19-3-1. 3
GH4429-89
3.3.2 Ultra-low carbon duplex stainless steel material mechanical properties and chemical composition shall meet the following requirements: a. Mechanical properties: 60: =400MP..c≤650MP..8=25%: b. Chemical composition: According to Table 5:
Chemical composition
Contains positive fraction, %
24 ~-26
2. 5--3. 41
Chemical elements
Content percentage, %
≤c. 025
3.4 ​​Performance
3.4.1 The size of the threaded joint shall be in accordance with CB316.
CB 589-95
3.4.2 The main parts of the stop valve must be forged or made of profiles. 3.4.3 Stop valve cover - hydraulic pressure selection strength and material tightness test, the test pressure is 1.5 times the nominal pressure, and there should be no leakage when the positive force lasts for 10 minutes. 3.4.4 The stop valve should be subjected to hydraulic tightness uniformity test. When the stop valve is respectively at a wave pressure of Pm=1.25FV, H and E forces are applied under the valve disc for 10 minutes. The test is repeated twice. There should be no leakage and lubrication when closing and opening. 3.4.5 The stop valve shall be subjected to the gas penetration test: use the air pressure Pm-PV, pressurize from the bottom of the valve, the pressure lasts for 10min, there should be no leakage between the valve disc and the valve seat when the stop valve is closed. When the stop valve is opened, there should be no leakage at the joint between the valve cover and the valve body and the stop stem. 3.5 Appearance
The outer surface of the stop valve shall be smooth and flat, and no defects such as burrs, slag, and pits are allowed. 4 Quality Assurance Provisions
4.1 Inspection Responsibilities
The technical inspection department of the stop valve manufacturer is responsible for the inspection. The stop valves submitted for acceptance must meet the requirements of Chapter 3 and Chapter 5 of the specification.
4.2 Test Methods
4.2.1 The stop valve shall be subjected to the strength wave pressure material tightness test according to the requirements of GB60C and shall meet the requirements of Article 3.4.3. 4.2.2 The stop valve shall be tested for liquid positive and air pressure tightness according to the requirements and divisions of GB600, and shall comply with the provisions of Articles 3.4.4 and 3.4.5.
5 Delivery preparation
5.1 Packaging
Before packaging, the stop valve thread part shall be covered with a sheath. 5.2 Packing
The stop valve shall be packed when leaving the factory, and the packing list shall indicate the following contents: a. Product name, standard code:
b. Nominal pressure, nominal diameter:
c. Number of male boxes:
d. Product certificate number.
5.3 Storage
The product shall be placed in the dry medium room, and it is not allowed to be stored in the open air. 5.4 Marking
The marking of the stop valve shall comply with the requirements of GB2032, and shall have the drawing number, inspection stamp and manufacturer's mark. Additional Notes:
This specification is proposed by the China Shipbuilding Industry Corporation GO1 Institute, and the specification is under the jurisdiction of China Shipbuilding Industry Corporation Wuchang Shipyard. CB 58995
This specification was drafted by the 704th Institute of China Shipbuilding Industry Corporation. The 63rd Institute participated in the drafting. The main drafter of this specification is Liu Zhicheng.
This specification is provided with unified construction drawings.
The project code is 932801.
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