CB/T3955 Stainless Steel Gate Valve
Materials of main parts
Body Material: Cast steel
Disc Material: Cast steel
Stem Material: Stainless steel
Overview
Application: This CB/T3955 Stainless Steel Gate Valve is designed for marine applications involving oil.
Material Specification:
| Parts Name | Material (Name) | Material (Marks) |
|---|---|---|
| Body, Cover | Cast steel | ZG07Cr19Ni9 |
| Stem | Stainless steel | 1Cr17Ni2 |
| Disc | Cast steel | ZG00Cr17Ni14Mo3 |
Technical Specifications:
Model: CB/T3955 Stainless Steel Gate Valve
Nominal pressure(MPa): 0.25, 0.6, 0.4
Nominal diameter(mm): 50~500
| Type | Nominal Pressure PN (MPa) | Nominal Diameter DN (mm) | Available medium |
|---|---|---|---|
| A, AS | 0.6 | 50 ~ 150 | The temperature is not lower than -165 ℃ corrosive medium. |
| A, AS | 0.4 | 175 ~ 300 | |
| AS | 0.25 | 350 ~ 500 |
Drawing:

Dimensions(mm)
Type A:
PN (MPa) | DN (mm) | Structure dimension | flange | |||||
L | H | D | D1 | D2 | d0 | b | ||
0.6 | 50 | 190 | 340 | 135 | 103 | 84 | 15 | 16 |
65 | 200 | 372 | 155 | 123 | 104 | 15 | ||
80 | 220 | 430 | 170 | 138 | 118 | |||
100 | 220 | 460 | 190 | 158 | 138 | |||
125 | 242 | 528 | 215 | 183 | 164 | |||
150 | 248 | 566 | 240 | 208 | 190 | 16 | ||
0.4 | 175 | 268 | 630 | 270 | 238 | 221 | ||
200 | 278 | 685 | 295 | 264 | 247 | |||
250 | 310 | 755 | 365 | 327 | 306 | 17 | 18 | |
300 | 345 | 835 | 430 | 386 | 360 | 21 | 19 | |
Type AS:
PN (MPa) | DN (mm) | Structure dimension | flange | |||||
L | H | D | D1 | D2 | d0 | b | ||
0.6 | 50 | 178 | 340 | 140 | 110 | 90 | 14 | 16 |
65 | 190 | 372 | 160 | 130 | 110 | |||
80 | 203 | 430 | 190 | 150 | 128 | 18 | 18 | |
100 | 229 | 460 | 210 | 170 | 148 | |||
125 | 254 | 528 | 240 | 200 | 178 | 20 | ||
150 | 267 | 566 | 265 | 225 | 202 | |||
0.4 | 175 | 292 | 630 | 295 | 255 | 232 | 22 | |
200 | 292 | 685 | 320 | 280 | 258 | |||
250 | 330 | 755 | 375 | 335 | 312 | 24 | ||
300 | 356 | 835 | 440 | 395 | 365 | 22 | ||
0.25 | 350 | 381 | 968 | 490 | 445 | 415 | 26 | |
400 | 406 | 1050 | 540 | 495 | 465 | 28 | ||
450 | 432 | 1195 | 595 | 550 | 520 | |||
500 | 457 | 1275 | 645 | 600 | 570 | 30 | ||
