This standard specifies the product classification, technical requirements, test methods, marking and packaging of marine external thread bronze drain cocks (hereinafter referred to as cocks). This standard is applicable to marine fresh water, sea water, lubricating oil, fuel oil pipeline systems or oil tanks. GB/T 599-1996 Marine external thread bronze drain cocks GB/T599-1996 Standard download decompression password: www.bzxz.net

ICS 47.020.30
National Standard of the People's Republic of China
GB/T 599—1996
Marine bronze external screwed drow-off cocksPublished on 1996-72-18
Implemented on 1997-08-01
Published by the State Bureau of Technical Supervision
GH/T599—1996
This standard combines the technical specifications of GB599—50 Marine external screwed drow-off cocks and GB1170399 Marine bronze external screwed drow-off cocks. According to the pressure level, the size of the end screw plug is specified. The screw plug with a nominal pressure of less than 1.6MPa can be CH, and the screw plug with a nominal pressure of more than 1.6MPa can be C-56. The screw plug specified in GB599.80 is defined as type A of this standard, and the screw plug specified in GB103-B is defined as type B of this standard. Considering the universalization of manual parts, it is convenient to organize specialized production and users' use. This standard adopts J1SF7390-1080 marine lockable screw plug. From the date of entry into force, this standard will replace GB599-80 and G1173-89. This standard is proposed by China State Shipbuilding Corporation and is under the jurisdiction of China State Shipbuilding Corporation. Drafting units of this standard: Dalian Ship Design Institute, Wuchang Shipyard. The main contributors of this standard are Jinquan, Weng Shigong, and Guo Peixian. This standard is introduced by unified abstract drawings, 1 Scope National Standard of the People's Republic of China Marine external bronze drain plugs Gn/T599·1996 GB 699..-80 G1170389 This standard specifies the product classification, technical requirements, test force, marking and appearance of marine external bronze drain plugs (hereinafter referred to as marine bronze drain plugs). This standard is applicable to marine fresh water, water, lubricating oil, fuel oil system or oil pump. 2 Reference standards
The following standards contain clauses that are referenced in this standard and constitute the reference text of this standard. When this standard is issued, the versions shown are valid: All standards will be revised. Please consider the possibility of using the latest versions of the following standards. G GGG-9] General technical conditions for ship piping fittings GB3032-89 Samples for ship piping accessories
C: 5%-83 Flat-blade screw joints for pipes
CB*B21-84 Low-blade pipe threaded joints
ZB/TV52001B9 Shipbuilding fittings series 3 Product classification
31 The types of spirals are divided into
A--external special pattern with bronze wine release spiral: B--external end right angle bronze can lock leakage efficiency. 3.2 The basic seasons of spirals are specified in Table 1. Table 1 Basic parameters of the plug 3.3 Structure and basic dimensions of the plug Nominal pressure is PN 3.3.1 Structure and basic dimensions of type A plug Figure 1 and Table 2. Approved by the State Technical Commission on December 18, 1996 Public diameter [10-25] Implementation on August 1, 1997 |Public pressure
Public diameterbzxz.net
Station size
GB/r599-1996
1A type condensation
Table 2A type cock push basic size
Day type evening knot basic size according to medical 2 and table 3D
M48×2
Screw joint
Handle 1
115 : . 94
:95 1 1.43
Public low force
Public diameter
3.4 ​​Marking example
CB/T 599—1996
Figure 8 Indigo plug
Table 3 Basic dimensions of type B plug
Hexagonal head
M33×2
Hexagonal opposite side
Nominal pressure is 2.5MPa: External screw-type locking valve plug with nominal diameter of 15mm, A2501 yuan GB/T599—1996
Nominal pressure is 0.1MPa. External screw-type locking valve plug with nominal diameter of 25mm, A2501 yuan GB/T599—1996
Nominal pressure is 0.1MPa. External screw-type locking valve plug with nominal diameter of 25mm, A2501 yuan GB/T595—196
3.5 Technical requirements
3.5.1 The technical requirements for valve plugs shall comply with GB60C. 3.5.2 The main materials for the threaded joints are as follows: the main material is copper, with the grade of 7QSa5-5-5!, standard number CB883-83, 3.5.3 The screw joint dimensions of the screw joints shall comply with the following regulations; the screw joints with PN≤1.6MPa shall comply with CB*321. The screw joints with PN>1.6MPa shall comply with CB:56. 3.5.4 The thickness of the threaded joint body shall comply with 2B/TL5201. 4 Test method GB/T 599. The test method of the test room shall be GBGS. The test results shall be reported in accordance with the test results. 5 Inspection rules 5.1 Sampling 5.1.1 The threaded joints of mass production can be inspected at the production site or in the product warehouse according to 3% of each batch of products, but not less than 3 groups. 5.1.2 The sampled products shall be stamped with appropriate marks to indicate their identity. 5.1.3 The overall test items for the sampled products shall be in accordance with the provisions of Table 4. 5.1.4 If the physical properties and chemical composition do not meet the requirements, the whole batch of products, the main body of the test and the commercial pressure test do not meet the requirements, the sampled products shall be retested; if there are any unqualified products, the whole batch shall be tested group by group. Products that fail the density test shall be retested after being repaired. 5.2 The factory inspection items and requirements of the cast iron are shown in Table 4. Table 4 Inspection items Mechanical properties and chemical properties of castings External inspection Body strength test Pressure gauge 5.3 Each group of parts shall be qualified after the factory inspection before leaving the factory. 6.1 The standard of dryness shall be in accordance with GB3632. 6.2 The packaging of cast iron shall be in accordance with GB 600. 5.2 Comply with GB 600
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