GB11691-1989 Cast steel suction sea valve (four-position)

This standard specifies the product classification and technical requirements of cast steel suction sea valves (four-position). This standard is applicable to fresh and seawater ship piping systems. GB11691-1989 Cast steel suction sea valves (four-position) GB11691-1989 Standard download decompression password: www.bzxz.net

UDC629.12.061121.646
National Standard of the People's Republic of China
GB 11691-11692—89
Cast steel and bronze suction sea valves
(four-position)
Cast steel and hronze suction sea valves198910-14 Issued
State Technical Supervision Bureau
1990-05-01 ImplementationwwW.bzxz.Net
National Standard of the People's Republic of China
Cast steel suction
Man-through sea valve
position)
Cudt steel suction sta vilvesGB11691.89
This standard allows reference to 1S02084-19741-general purpose pipe flange (metric size 3.2441-1975g-general purpose flange overall type and size, the length of the station transmission refers to the structural length of the gold exhibition network in the flange pipeline system 1S05752-1982>. Main inner cellar and circulation sore enclosure
This standard specifies the product classification and technical requirements of cast steel suction chest (west position) (hereinafter referred to as general test). This standard is applicable to fresh and seawater ship piping systems. 2 Reference standards
Flange Connection size and sealing surface (called advance) GB2501 GB11698 Structural length of flange connection valves GB600 General technical conditions for pipe cross-over parts G3032 Marking center of measuring arm accessories 3 Product classification 5.7 General basic coefficients are in accordance with Table 1. Nominal, 3.2 Structural dimensions with different coefficients are in accordance with Figures 1 and 2, approved by the State Administration of Technical Supervision on October 14, 1989 and implemented on May 1, 1990 Product length GB 11691.-89 3.3 International record CB 11691
Purchase pressure is 0.1MPa, nominal diameter 6mm cast steel plate suitable for sea access (net entry is: Tongyan 41116989
4 Technical requirements and test methods for sea access
4.1 Technical requirements for sea access (H600
4.2 Sea access valves must be made of the same material as shown in Table 3.
Customer parts thread
body, plate
fat beef noodles
45 Sea access net delivery blue press (12501
Stack fast
4. Test rules and methods for through-valve according to G
Inspection rules
5.1 Type inspection
5-1. Type inspection should be carried out when there is a series of memories.
2G2G-I
zASn10-2
After the new product is officially put into production, if the structure, material, and process have changed significantly, it may affect the product performance; regular production: after a certain amount of production, it should be inspected periodically! The requirements for type inspection proposed by the State Quality Inspection Supervision: The quality of type inspection should be in accordance with Table 1.
5.2 Factory inspection
Appearance inspection
The physical and chemical properties of the parts shall be inspected and tested before use! 5.2.1 The parts shall be inspected and tested before use! 5.2.2 Factory inspection Item 3 is as shown in Table 4.
CB77270
CE 883h#
GB 4429—81
GB142—4
Comply with GB600
2Conform to (R77)
Conform to OC's regulations
E marking and packaging
6.1Sea markings are in accordance with G83032
Commercial brand packaging is in accordance with 6H600
Additional instructions:
This standard is proposed by China State Shipbuilding Corporation. This standard is drafted by Dalian Shipbuilding Industry Corporation. This standard is mainly drafted by Ma Heng,
This standard is provided by the drawings of the general implementation.
GB11691-89
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