Marine Flanged Seawater Stop Check Valve – Technical Specifications
Standards Compliance
-
Design & Manufacturing: CB/T 3197-1995 (China Ship Standard)
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Flange Connection: GB/T 2501 & GB/T 569
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Type: Flanged Ends
Marine Stop Check Valve Technical Parameters
| Parameter | Specification |
|---|---|
| Pressure Rating (PN) | 0.6 / 1.0 / 1.6 MPa |
| Nominal Size (DN) | 40mm – 250mm |
| Operation | On-Off & Backflow Prevention |
Material Specifications
| Component | Material Grade |
|---|---|
| Body/Bonnet | ZG230-450 (Cast Carbon Steel) |
| Valve Seat | SS410 / Bronze Composite |
| Stem | SS410 / Brass |
| Disc | SS410 / Bronze Composite |
Sizes:
| PN | DN | Structure dimension | Flange connection dimension | Bolt | |||||||||
| A | B | ||||||||||||
| Mpa | mm | H/mm | L/mm | H/mm | L/mm | L1/mm | D/mm | D1/mm | D2/mm | d0/mm | b/mm | n | Th. |
| 1 | 65 | 310 | 290 | 277 | 115 | 115 | 155 | 123 | 104 | 15 | 14 | 6 | M14 |
| 80 | 345 | 310 | 304 | 125 | 125 | 170 | 138 | 118 | 8 | ||||
| 100 | 374 | 350 | 325 | 150 | 135 | 190 | 158 | 138 | |||||
| 125 | 426 | 400 | 366 | 175 | 155 | 215 | 183 | 164 | 10 | ||||
| 150 | 487 | 480 | 415 | 180 | 160 | 240 | 208 | 190 | 12 | ||||
| 0.6 | 200 | 630 | 600 | 524 | 275 | 225 | 295 | 264 | 247 | 15 | |||
| 250 | 743 | 730 | 612 | 325 | 275 | 365 | 327 | 306 | 17 | 16 | 14 | M16 | |
| 1.6 | 40 | 260 | 200 | 235 | 90 | 90 | 125 | 93 | 74 | 15 | 13 | 6 | M14 |
| 50 | 288 | 230 | 258 | 95 | 95 | 135 | 103 | 84 | |||||
| 65 | 335 | 290 | 301 | 115 | 115 | 170 | 132 | 110 | 17 | 15 | 8 | M16 | |
| 80 | 366 | 310 | 325 | 125 | 125 | 185 | 147 | 126 | 16 | ||||
| 100 | 427 | 350 | 378 | 150 | 135 | 205 | 167 | 146 | 10 | ||||
| 125 | 465 | 400 | 405 | 175 | 155 | 225 | 187 | 168 | 15 | ||||
| 150 | 524 | 480 | 452 | 180 | 160 | 255 | 217 | 196 | 12 | ||||
The description/sizes may be different with goods, please check with us when order.
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