This standard specifies the product classification, technical requirements, test methods, inspection rules, marking and packaging of marine flange bronze stop valves (hereinafter referred to as stop valves) with flange connection dimensions in accordance with GB569 and GB2501. This standard is applicable to marine piping systems with media such as seawater, fresh water, lubricating oil, fuel oil and steam with a temperature not exceeding 250°C. GB/T 587-1993 Marine flange bronze stop valve GB/T587-1993 standard download decompression password: www.bzxz.net

UDC 629. 12. 01 : 621.646. 2U 52
National Standard of the People's Republic of China
GB/T 587—93
Marine bronze flanged stop valves
Marine bronze flanged stop valves1993-05-24 Issued
State Bureau of Technical Supervision
1994-01-01 Implementation
W.National Standard of the People's Republic of China
Marine bronze flanged stop valves
Marite bronze flanged stop velves1 Subject content and applicable scope
GB/T 587-93
Find GB387-84
This standard specifies the product classification, technical requirements, test methods, inspection rules, marking and packaging of flange connection size GB569GB2591 for ship hot flange back stop valves (hereinafter referred to as stop valves). This standard is suitable for handling mediums such as water, oil, fuel oil and temperature not exceeding 20 ... Q01
Marine cast valve parts
3 Product classification
3.1 The types of stop valves are as follows:
A type - straight-through stop valve with flange connection dimensions according to GB 6S; B type - right-angle stop valve with flange connection dimensions according to GR559; AS type - right-angle stop valve with flange connection dimensions according to GB 2501. 3.2 Basic parameters of stop valves according to 1.
Public pressure PN
3.3 Structural dimensions of A type and B type stop valves according to Figure 1, Figure 2 and Table 2. National Technical Supervision Commission 1993-05-24 Approved nominal diameter DN
65~150
125~15#
20~-123
15--150
65~-150
15~125
1994-01-01 implementation
W.bzsoso:com nominal
Yizhoutong
Figure 1A type, AS type
Outline size
1.0100350
GB/T 587
2B type, BS Type
4114180
W. Public paste
Lezhou Tong Street
Overall dimensions
GB/T587—93
Continued Table 2
3. 4AS type, BS type stop valve structure dimensions Figure 1, Figure 2 and Table 3. Table 3
Pressure gauge
PN material
Dimensions
ks type
AS type BS type
140112
AS type
W. Enterprise period
1.6100350
125400
32/180
3.5 Marking example
Dimensions
ASRS plastic
366325
GB/T 587—93
Continued Table 3bzxz.net
165125
[AS type IS type
JM20 280
M24280
1110,. 810. 4
46. 4 41. 2
Nominal K force is 2.5MPa, nominal diameter is 40mm. According to the flange connection size of GB569 and the case seal, the marine flange bronze straight-through stop valve:
Stop A25040GB/T587-93
Nominal K force is 1.6MPa, nominal diameter is 125mm, according to the flange connection size of GB2501 and the seal (four-position) marine flange bronze right-angle stop valve:
Overview stop valve BS16125GB/T587-93
4 Technical requirements
4.1 Technical requirements for stop valves are in accordance with GB 600.4.2 The main parts and materials of stop valves are in accordance with Table 4.W. Parts name
GB/T 587—93
Special pot precious copper
Aluminum steel
4.3 The flange connection dimensions of the stop valve shall be in accordance with GB 569 and GB25014.4 The average length of the AS type and BS type stop valve shall be in accordance with GB11698.4.5 The wall thickness of the stop valve shall be in accordance with 2B/TU52001.
5 Test methods and inspection rules
5.1 The test method of the stop valve shall be in accordance with GB 609.5.2 The items of type inspection and factory inspection shall be in accordance with Table 5. Table 5
Chemical differential inspection
Appearance inspection
Strength water strength test
Tightness water pressure test
5.3 Each stop valve shall be inspected item by item in accordance with Table 5 and can only be shipped after passing the inspection. 6 Marking and packaging
6-1 The marking of the stop valve shall be in accordance with GB3032.
6.2 The packaging of the products shall be in accordance with GB 600.
ZQSn 10-2 1 or
ZQSn 5-5-5
QAE 9-2
CB &83
GI 4429
Conform to C13893
Conform to GB 600
W. Additional remarks:
This standard is proposed by China State Shipbuilding Corporation. CB/T 587—93
This standard is proposed by 603 Institute of China State Shipbuilding Corporation. This standard is drafted by Dalian Ship Design Institute, and 603 Institute and 6502 Factory participated. The drafter of this standard is Li Yu'e.
This standard was formulated as national standard GB587-65 in 1965, revised for the first time as GB587-76 in 1976, and revised for the second time as GR 587-84 in 1984.
From the date of implementation of this standard, the original foreign trade standards CBM69-81 (PN6 flange bronze stop valve), CBM72-81 & PN10 flange bronze stop valve), CBM75-81
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