This standard specifies the technical requirements, test methods, inspection rules, marking and packaging of ship pipeline valves and cocks. This standard applies to the design, manufacture and acceptance of general ship valves. Filters and other pipeline accessories should also be used as a reference. GB 600-1991 General Technical Conditions for Ship Pipeline Valves GB600-1991 Standard download decompression password: www.bzxz.net

1m:621.e46
National Standard of the People's Republic of China
General specifications for narine piping valves and fittings
General specifications for narine piping valves and fittings199107-29Promulgated
State Administration of Technical Supervision
Implementation on 1992-04-01
National Standard of the People's Republic of China
General specifications for marine piping valves and fittings1Subject content and scope of application
GB600—91
Generated GA82
This standard refers to the technical requirements, test methods, inspection specifications and packaging of fittings for ships. This standard is applicable to the design, manufacture, acceptance, inspection and handling of accessories such as micro-devices, etc. of general fittings for ships. 2 Reference standards
: H1184 Shape and position tolerances Technical tolerances G1R Valley difference Matching tolerances G33032 Ship pipeline accessories marking
GR1161 Monthly flange connection floor gold wind rate 1 knot tree length 3 Technical requirements
3.1 Straight-through type reading parts inlet and outlet sealing faces should be parallel, right-angle type long inlet and outlet sealing end faces should be perpendicular, and their parallelism or verticality grade shall be in accordance with 1184 two record 12 grade 5-2 tonality: the average reading of the knot is forbidden (report 1Fi8S in Table 2. 3.3 When the net compensation and limit are used, if the outer periphery of the joint is not machined, it is allowed to have non-conforming dimensions as specified in Table 1, table!
Public and private diameters
s: on
0:0~500
allowable weight
3.4 ​​After the packing is pressed, the length of the packing inserted into the material box should be between 1-25 of its own length. 3.5 The assembled parts should meet the following requirements: the operation is smooth, there is no seat phenomenon, the stopper should have the function of lowering; when the net is lifted, the door can be opened and closed by itself when it is 16 meters away from the vertical line. The requirements should be specified separately in the product standards. . The valve closing piece, the center of the core sealing surface must be 3. The technical requirements of the valve seat and the parts must meet their respective material standards, and the specified grades and surface quality should be specified in the specifications. 3.7 The grinding sealing surface of the valve parts is not allowed to have harmful gas marks and other anti-marks. State Administration of Technical Supervision, approved on July 29, 1991, and implemented on April 1, 1992. 3.8 Fluid flow is not allowed to be processed. It is not allowed to run on a mixed model. 3.9 Steel pins are prohibited from being used for parts. The speed is close to the speed of the parts and there is no accumulation of clear path, flow marks, etc. 3.10 All parts The size should meet the sample requirements. The mechanical operation tolerance should meet the minimum tolerance of the table B1801. The polishing is 14 and the hole is H14. The length standard is ±0.514. The final net shape and position tolerance cannot exceed GE1184. The positive deviation of the 311 drawing quality should not exceed 4% of the desired quality. 4 Test method
4.7 Read the strong consideration liquid music test adjustment rule
4.1.1, push-pull test pressure (P is 1. times the nominal pressure or 1.5 times the high working force: but it must be greater than the designed pressure 7MPa. Special requirements should be separately specified in each product standard. 4.1.2 Test time shall be in accordance with the provisions of Table 7.
Main ring diameter
Maintain pressure for a short time during the test
4.1.3 Test time, use a 0.1kg copper rod with a handle length of 30mm to gently hit. The rod shall not drop, and there shall be no visible leakage on the surface of the plug. 4.2 Test rules for sealing performance
4.2.1 The sealing test pressure (P1) is 1.1mm nominal pressure or 1.1mm high working pressure. Special requirements shall be specified in the product standards.
4.2.2 Test time: According to Table 3, the test time should be set according to the public boundary diameter
4.2.3 During the test, check the valve disc, the seat seal, the expansion and expansion allowance, the control spectrum in Table 4, the soft outlet seal parts, the lubrication parts of the lower wheel, the external drop check valve, the open-closed check valve, the tightness
4.3 Test of breast parts
4.3.1 Interval test
The maximum non-return port
Seal the outlet, fill the cavity with water, and apply pressure at the inlet (valve disc) with the concentrated positive test pressure. After the strong variable wave pressure test is passed, the pressure will be reduced to the sealing test pressure (P.), Close the door and open the travel step. Wipe off the remaining water and check the sealing surface.
4.3.2 Stop check test
Perform the weakness test of the check body and the sealing surface seal test according to 4.3.1. After the inspection is qualified, if the pressure is removed, lift the pottery rod. 2
G60091bzxz.net
Seal test force () from the rate (upper) positive force (slope height) The mesh parts with a working pressure higher than .3MPa should be subjected to a test force of 0.MPa. The mesh parts should be tested for the surface of the mesh disk. 4.3.3 Lifting type upper return and rotary vane check first perform the non-plate body strong hydraulic pressure test according to 4.3.1, and then perform the inspection according to 4.3. .2 Carry out the sealing performance test of the sealing ring, 4.3-4 Carry out the strength hydraulic test and flow test of the two bodies according to 4.\. For double sealing, a low-pressure test should also be carried out in the other direction, 4.3.5 Fill the ball and swivel seals at either end with water, apply pressure at the other end with the hydraulic test pressure P, and carry out the strength pressure test of the valve body. After passing the test, reduce the pressure to the flow test pressure (), close the valve, open both ends, and check the sealing performance of the two seals after the water is stored. For the single-seal gate, ball and plug seals, check the inlet and outlet ends. Inspection: For valves with flow in one direction, pressure can be applied from one end, and the other end can be tested for sealing in the other direction after it is qualified. The tightness of each end of the valve should be checked separately. 5 Inspection rules 5. All valves should be inspected by the quality inspection department and their certificates of conformity should be issued. 5.2 Item inspection 5.2.1 Material inspection should comply with the requirements of 3.6 of the contract. Materials that have been submitted to the material report sheet can be used as a control. 5.2.2 Appearance inspection should comply with the requirements of 3.3.3.4.3.6, 3.7 and 3.9 of the contract. 5.2.3 Dimensional inspection should comply with 3. 1, 2.2 and 2. requirements.
5.2.4 Assembly inspection The transformer shall meet the requirements of 3.5,
5-2.5 Reliability inspection shall meet the requirements of 3.9.
5.2.6 Before positive inspection, the transformer shall be subjected to the drive wave pressure inspection and the sealing performance inspection according to Chapter 1. When the pressure wave tends to sleeve, all the gas in the lubrication cavity will be excluded. It is not allowed to use the method of sealing to achieve the isolation of the parts. After being inspected, the water containing rust inhibitor should be changed to fresh water or kerosene. Due to different inspection items, the inspection items for different types of parts should be specified in the product standards: If the user has requirements, non-destructive inspection can be done.
5.3 The ordering party has the right to inspect the products of the food and beverage products. The inspection date should not be determined according to the product specifications. When inspecting the valve parts, except for the internal layer and chemical treatment such as corrosion, the rate and age of the limited parts shall not be full. If the safety of the products is required, the inventory parts can be tested without removal under the condition of the ordering party’s representative. 6.1 The marking of the parts shall be in accordance with GB3032, and shall have the serial number and the manufacturer's mark. 6.2 The machined surfaces of steel and titanium valve parts shall be coated with industrial vaseline before packaging. 6.3 The valve doors shall be closed, the frequency valve disc shall be fixed, the ball valve and the flow case shall be in a perfect position, the flow flange shall be sealed with a flat surface, the core shall be covered with a cover plate, etc. 6.4 The valve parts shall be packed. There shall be a packing list in the box. Indicate the following on the packing list: product name, standard code: CB60091, nominal pressure or maximum pressure Working pressure! , nominal control per box teaching:
d. Product certification code,
the whole ship class must be approved by the parts should have the approval certificate or related photos. 5.5 The product is not allowed to be stored or stacked in the room below the combustion chamber, additional instructions:
5 standard promotes China Shipbuilding Industry Corporation Hong Kong products: This standard promotes the national registration of mechanical standard according to the wind and wind system of the technical committee of the National Technical Committee. This standard is also completed by Dalian Shipbuilding,
this standard is mainly drafted by Qiu Jinzong.
This standard refers to the international standard 15052081982.1. Industry and Attachment 7100.1985 shares use the confirmation and reversal of the case. Civilian Kangli test skin can be the industry standard JISE
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