MSS SP-70 CLASS 250 NRS CAST IRON GATE VALVE
TECHNICAL REQUIREMENT:
- Design and Manufacture: Conform to MSS SP-70
- Flange dimensions: Conform to ANSI B16.1
- Face to Face dimensions: Conform to ANSI B16.10
- Testing: Conform to MSS SP-70
MATERIALS OF PARTS
Fig No.: GAV101-250
| NO. | PART NAME | MATERIAL |
|---|---|---|
| 1 | BODY | ASTM A126 B |
| 2 | SEAT RING | ASTM B62 |
| 3 | WEDGE RING | ASTM B62 |
| 4 | WEDGE | ASTM A126 B |
| 5 | STEM | ASTM B16 HG/CR13 |
| 6 | STEM NUT | MN-BRASS |
| 7 | BOLT | CARBON STEEL |
| 8 | NUT | CARBON STEEL |
| 9 | BONNET GASKET | GRAPHITE+STEEL |
| 10 | BONNET | ASTM A126 B |
| 11 | STUFFING BOX | ASTM A126 B |
| 12 | BOLT | CARBON STEEL |
| 13 | NUT | CARBON STEEL |
| 14 | PACKING GLAND | ASTM A126 B |
| 15 | HANDWHEEL | DUCTILE IRON |
| 16 | NUT | CARBON STEEL |
| 17 | WASHER | CARBON STEEL |
| 18 | PACKING | GRAPHITE |
| 19 | WASHER | GRAPHITE+STEEL |
| 20 | BOLT | CARBON STEEL |
| 21 | NUT | CARBON STEEL |
DIMENSIONS DATA (MM)
| NPS | 2 | 2 1/2 | 3 | 4 | 5 | 6 | 8 | 10 | 12 |
|---|---|---|---|---|---|---|---|---|---|
| Dn | 51 | 63.5 | 76 | 102 | 127 | 152 | 203 | 254 | 305 |
| L | 216 | 241 | 283 | 305 | 381 | 403 | 419 | 459 | 502 |
| D | 165 | 191 | 210 | 254 | 279 | 318 | 381 | 445 | 521 |
| D1 | 127 | 149 | 168 | 200 | 235 | 270 | 337 | 387 | 451 |
| b | 22.3 | 23.4 | 25.4 | 28.6 | 31.8 | 35 | 36.6 | 41.3 | 50.8 |
| n-d | 8-19 | 8-22 | 8-22 | 8-22 | 8-22 | 12-22 | 12-25 | 16-29 | 16-32 |
| H | 332 | 378 | 421 | 463 | 529 | 603 | 723 | 810 | 879 |
| W | 200 | 200 | 255 | 300 | 306 | 360 | 406 | 450 | 508 |
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