This standard specifies the product classification, technical requirements, test methods, inspection rules, marking, packaging and storage of marine center-type wafer-type butterfly 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, air and crude oil and refined oil with a temperature of t≤70℃. GB/T 3036-1994 Marine Center-Type Butterfly Valve GB/T3036-1994 Standard download decompression password: www.bzxz.net

UDC 629. 12. 061 : 621. 646. 25U 52
National Standard of the People's Republic of China
GB/T 3036—94
Marine center-pivoted batterfly valve
Marine center-pivoted batterfly valve 1994-06-30 Issued
1995-04-01 Implementation
State Administration of Technical Supervision Issued
W.National Standard of the People's Republic of China
Marine center-pivoted batterfly valve
Marine center-pivoted batterfly valve Main content and scope of application
GB/T 3036—94
tReplaced GB 3036-- R2
This standard specifies the product classification, technical requirements, test methods, inspection rules, marking, packaging and storage of marine center-type wafer-type media valves (hereinafter referred to as butterfly valves) with flange connection dimensions according to (GB569, (H2501). The standard is applicable to marine pipeline systems with media such as seawater, fresh water, air and crude oil and finished products at a temperature of 70°C. 2 Reference standards
GB 528-82
Determination of tensile properties of vulcanized rubber
GB 531- 83
Rubber Shore A hardness test method
B 569—65
Ship flange connection dimensions and density
GB60091 General technical conditions for ship pipeline valves (iB1590-82 Test method for liquid resistance of vulcanized rubber GR250189
Ship flange connection dimensions and case cover (four-digit) GH3032—89
GB 3312-- 83
GH 11698—89
3 Product classification
Marking of ship pipeline accessories
Rubber hot air aging test method
Ship flange connection metal valve joint length 3.1 The type of butterfly valve is specified as follows:
BS Type
Flange connection size according to GB569 handle transmission butterfly valve: flange connection size according to G, F, handle extension shaft transmission butterfly valve: flange connection size according to GB569 worm transmission butterfly valve; flange connection size according to GB69 hydraulic butterfly valve; flange connection size according to GR369 pneumatic butterfly valve: flange connection size according to GB2501 handle transmission butterfly valve: flange connection size according to GB2501 hand transmission extension shaft butterfly valve: flange connection size according to GB2501 Flange connection size is in accordance with (B2501 worm drive butterfly valve; flange connection size is in accordance with GB2501 wave media valve: flange connection size is in accordance with GB2501 pneumatic butterfly valve. 3.2 Basic parameters of media valves are in accordance with Table 1.
Approved by the State Administration of Technical Supervision in 199406-30
Implementation in 1995-04-01
W. Plastic
3.3 Basic size of forbidden joints
GB/T 3036 - 94
Nominal HN
3.3.1The structure and basic dimensions of type A butterfly valve shall be in accordance with Figure 1 and Table 2. Figure TA type AS type
Public diameter
Construction average size
Nominal diameter PN
8-~20m
W.GB/T3036-94
3.3.2The structure and basic dimensions of type AS butterfly valve shall be in accordance with Figure 1 and Table 3. Table 3
Nominal diameter
Structural dimensions
3.3. 3B The structure and basic dimensions of butterfly valve shall be in accordance with Figure 2 and Table 1. Figure 2 Type B. BS Type
W. Nominal diameter
........
Structural dimensions
GB/T 3036--94
3.3.43 The structure and basic dimensions of S type butterfly valve shall be in accordance with Figure 2 and Table 5. 138
W. Nominal diameter
Structural dimensions
GB/T3036-94
3.3.5 The structure and basic dimensions of C type butterfly valve shall be in accordance with Figure 3 and Table 6. 160
W. Nominal diameter
GB/T 3036—94
Figure 3c type, Cs type
Drilling average size
3.3.6 (S type butterfly valve structure and basic dimensions according to Figure 3, Table 7, 6
W. Nominal diameter
GB/T303694
Structural dimensions
3. 3. 7 D type butterfly valve structure and basic dimensions according to Figure 1. 8 2
Oil control interface
Figure 4D, DS type
16- 63
W. Gold
Structural dimensions
GB/T 303694
DS type butterfly valve structure and basic dimensions according to Figure 4, Table 9 3. 3.8
1 0-4-
Structural dimensions
The structure and basic dimensions of E-type butterfly valves shall be in accordance with Figure 5 and Table 10.158
1429.58 178.81
1 120- 58183. 84
W. Public class
Structural skin
GB/T 3036—94
Gradient interface
Figure 5E type, ES type
3.3.10The structure and basic dimensions of ES type butterfly valves shall be in accordance with Figure 5 and Table 11. 196
W. Profit
Structural dimensions
GB/T 3036—94
￥ 726.6194.42
3.4 ​​Marking example
Nominal pressure is 1.0MPa, nominal diameter is 150mm, according to the flange connection size and sealing surface of GB569, the marine center type wafer handle transmission butterfly valve:
Butterfly valve A10150GB/T3036-94
Nominal pressure is 1.CMPa, nominal diameter is 150mm, according to the flange connection size and sealing surface of GB 2501 (four-position>) Marine center type wafer handle transmission butterfly valve:
Butterfly valve AS10150GB/T 3036-94
Nominal normal force is 1.0MPa, nominal diameter is 150mm, according to the flange connection size and sealing surface of GB569 for marine center-type worm-driven butterfly valve:
Butterfly valve C10150GB/T 3036-94
Nominal pressure is 1.CMPa+nominal diameter is 150mm, according to the flange connection size and sealing surface (four-position) of GB2501 for marine center-type worm-driven butterfly valve,
Butterfly valve CS10150 GB/T 3036-94
4 Technical requirements
4.1 The technical requirements of butterfly valves shall comply with the provisions of GB600. 4.2 The structural length of the media shall comply with the provisions of GR11698. 4.3 The flange connection size and sealing surface connected to the media valve shall comply with the provisions of GB559 and GB2501 respectively. The materials of the main parts of the butterfly valve shall comply with the provisions of Table 12. 4.4 Parts Name: Butterfly valve body, rubber bushing, butyl rubber, nylon rubber, nylon rubber, rubber body, GB/T 3036—94, QT 460-15, ZQA19-21, HN8-133, SFR423, ZG230 45: 4.5 The physical properties of the nylon rubber bushing of the butterfly valve shall comply with the provisions of Table 13. 13
Physical properties
Hardness (Shore A) degree
Tear strength. N/mm
Elongation at break, in addition
Hot air aging (incC×24h)
Hardness change. degree
Tear strength change, %
Preliminary liquid method
No. 1 standard H (100X2-1h)
Volume change, 100%,
Toughness change. degree
Standard silicon number
GE1348—88
CB 863 --83
C3 703sH6
GB 7040—86bZxz.net
GH 4226 -87
CB772—8G
G31285
Performance Index
When used for gasoline medium, fluororubber bushings and nitrogen rubber materials should be selected. The physical properties of the rubber materials should comply with the requirements of Table 14.4.6
Physical properties
Degree of wear (Shore type)
Breakage rate yN/m
Let new elongation rate, %
Hot air aging (1artx2h)
Silicon degree change
Frequency change.
Liquid resistance test
No. 1 standard will (l00 (2th)
Benji Biochemical
The transmission device of 4.7 butterfly valve is rotated 90° and the working pressure of 4.8 butterfly valve oil is p-2.5MPa. Minimum
Performance index
W.
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