GB/T5744 Marine Quick-closing Valve
Materials of main parts
Body Material: Cast Steel
Disc Material: High-quality Carbon Steel
Stem Material: Stainless Steel
Overview
Application: This GB/T5744 Marine Quick-closing Valve is designed for marine applications involving sea water, fresh water.
Material Specification:
Parts Name | Material Name | Material Grade |
|---|---|---|
Body, Cover | Cast steel | ZG230-450 |
Disc | High-quality Carbon steel | Steel 45 |
Stem, Piston | Stainless steel | 2Cr13 |
Cylinder | Welded stainless steel | H2Cr13 |
Technical Specifications:
Model: GB/T5744 Marine Quick-closing Valve
Type | Nominal Pressure PN (MPa) | Nominal Diameter DN (mm) | Cylinder Working Pressure P (MPa) | Suitable Media |
|---|---|---|---|---|
AS, AQ, ASS, AQS | 0.25 | 20 ~ 150 | 0.3 ~ 0.7 | Lubricating oil, Fuel oil |
BS, BQ, BSS, BQS | 0.25 | 20 ~ 150 | 0.3 ~ 0.7 | Lubricating oil, Fuel oil |
Drawing
AS/BS/AQ/BQ
Nominal Diameter | L | H |
L1 |
L2 |
D |
D1 |
D2 |
b |
d0 |
n | ||
AS | BS | AS | BS | |||||||||
AQ | BQ | AQ | BQ | |||||||||
20 | 150 | 95 | 240 | 320 |
143 |
44 | 95 | 68 | 48 | 11 | 13 | 4 |
25 | 160 | 100 | 242 | 325 | 105 | 73 | 56 | 12 | ||||
32 | 180 | 105 | 245 | 330 | 115 | 83 | 64 | 13 |
15 |
6 | ||
40 | 200 | 115 | 274 | 365 | 48 | 125 | 93 | 74 | ||||
50 | 230 | 125 | 283 | 381 | 49 | 135 | 103 | 84 | ||||
65 | 290 | 145 | 325 | 437 | 155 | 58 | 155 | 123 | 104 |
14 | ||
80 | 310 | 155 | 350 | 466 | 170 | 138 | 118 | 8 | ||||
100 | 350 | 175 | 375 | 500 | 295 | 62 | 190 | 158 | 138 | |||
125 | 400 | 200 | 400 | 540 | 300 | 68 | 215 | 183 | 164 | 10 | ||
150 | 480 | 225 | 430 | 580 | 310 | 75 | 240 | 208 | 190 | 12 | ||
ASS/BSS/AQS/BQS
Nominal Diameter | L | H |
L1 |
L2
|
D |
D1 |
D2 |
b |
d0 |
n | ||
ASS | BSS | ASS | BSS | |||||||||
AQS | BQS | AQS | BQS | |||||||||
20 | 150 | 95 | 240 | 320 |
143 |
44 | 90 | 65 | 50 | 14 | 11 |
14 |
25 | 160 | 100 | 242 | 325 | 100 | 75 | 60 | |||||
32 | 180 | 105 | 245 | 330 | 120 | 90 | 70 |
16 |
14 | |||
40 | 200 | 115 | 274 | 365 | 48 | 130 | 100 | 80 | ||||
50 | 230 | 125 | 283 | 381 | 49 | 140 | 110 | 90 | ||||
65 | 290 | 145 | 325 | 437 | 155 | 58 | 160 | 130 | 110 | |||
80 | 310 | 155 | 350 | 466 | 190 | 150 | 128 | 18 |
18 | |||
100 | 350 | 175 | 375 | 500 | 295 | 62 | 210 | 170 | 148 | |||
125 | 400 | 200 | 400 | 540 | 300 | 68 | 240 | 200 | 178 | 20 | 18 | |
150 | 480 | 225 | 430 | 580 | 310 | 75 | 265 | 225 | 202 | |||
