Fire-fighting elastic-seat encolsed gate valve
The paremaeter of encolsed gate valve :
| 1 Main Technique Number | |||||||
| Nominal pressure | 1 | 1.6 | 2.5 | ||||
| Test pressure (MPa) | Shell strength | 1.5 | 2.4 | 2.8 | |||
| Sealing performance | 1.1 | 1.76 | 3.8 | ||||
| Working temperature | -10~80 | ||||||
| Applicable medium | Clean-waterSlopsoilAir | ||||||
| 2Material For Main Parts | |||||||
| Name of parts | Material | ||||||
| BodyBonnet | Ductile Iron | ||||||
| Disc | (EPDM MBR)Ductile lron | ||||||
| Stem | Stainless steel | ||||||
| Nut | Bronze | ||||||
| Hand wheel | Ductile Iron | ||||||
| 3 Main Exteranl Dimensions PN10/PN16 | |||||||
| L | D | D1 | N-φd | b | Hmin | Hmax | |
| 50 | 178 | 160 | 125 | 4-18 | 20 | 322 | 374 |
| 65 | 190 | 180 | 145 | 4-18 | 20 | 332 | 398 |
| 80 | 203 | 195 | 160 | 4-18 | 21 | 350 | 429 |
| 100 | 229 | 215 | 180 | 4-18 | 21 | 420 | 524 |
| 125 | 254 | 245 | 210 | 4-18 | 22 | 581 | 721 |
| 150 | 267 | 285 | 240 | 4-18 | 22 | 581 | 736 |
| 200 | 292 | 335 | 295 | 8-23/12-23 | 23 | 736 | 942 |
| 250 | 330 | 390/405 | 350/355 | 12-23/12-25 | 24 | 882 | 1013 |
| 300 | 356 | 440/460 | 400/410 | 12-23/12-25 | 5 | 1009 | 1117 |
| 350 | 381 | 500/520 | 460/470 | 16-28/16-25 | 26 | 1300 | 1655 |
| 400 | 406 | 565/580 | 515/525 | 16-25/16-30 | 40 | 1380 | 1805 |
| 450 | 432 | 615/640 | 565/585 | 20-25/20-30 | 44 | 1470 | 2020 |
| 500 | 457 | 670/705 | 620/650 | 20-25/20-34 | 46 | 1600 | 2240 |
| 600 | 508 | 780/840 | 725/770 | 20-30/20-41 | 54 | 1705 | 2500 |
