產(chǎn)品執(zhí)行標(biāo)準(zhǔn)
類型 | 設(shè)計(jì)與制造 | 結(jié)構(gòu)長度 | 法蘭尺寸 | 壓力 -溫度 | 試驗(yàn) -檢驗(yàn) |
旋啟式止回閥 | ANSI B16.34 | ANSI B16.10 | ANSI B16.15 | ANSI B16.34 | API 598 |
升降式止回閥 | BSI 868 |
產(chǎn)品性能規(guī)范
公稱壓力 | 150 | 300 | 600 | 900 | |
強(qiáng)度試驗(yàn) | MPa | 3.1 | 7.8 | 1513 | 23.1 |
Lbf/in2 | 450 | 1125 | 2225 | 3350 | |
水密封試驗(yàn) | MPa | 2.2 | 5.6 | 11.2 | 16.8 |
Lbf/in2 | 315 | 815 | 1630 | 2440 | |
氣密封試驗(yàn) | MPa | 0.5～0.7 | |||
Lbf/in2 | 60～100 | ||||
主要零件材料
體、蓋、瓣、搖桿、導(dǎo)向套 | 銷軸 | 墊片 | 密封面 | 工作溫度 | 適用介質(zhì) |
WCB | 2Cr13 | 增加柔性石墨 | 13Cr | ≤425 | 水、蒸汽、油 |
WC1 | ≤450 | ||||
WC6 | ≤540 | ||||
WC9 | ≤570 | ||||
C5 C12 | ≤550 | ||||
CF8 | 304 | ≤600 | |||
CF3 | 316 | ||||
CF8M | 304L | ||||
CF3M | 316L |
主要外形和連接尺寸 單位：mm
| NPS | DN | Class150Lb/300Lb/600Lb | WT | ||||||
| in | mm | L | D | D1 | D2 | b | Z-φd | H | |
| 2″ | 50 | 203 | 157 | 120.7 | 92 | 19.50 | 4-19 | 161 | 17 |
| 21/2″ | 65 | 216 | 178 | 139.7 | 105 | 22.5 | 4-19 | 180 | 23 |
| 3″ | 80 | 241 | 190.5 | 152.4 | 127 | 24 | 4-19 | 190 | 33 |
| 4″ | 100 | 292 | 229 | 190.50 | 157.2 | 24 | 8-19 | 220 | 44 |
| 6″ | 150 | 356 | 279 | 241.5 | 216 | 25.5 | 8-22.5 | 257 | 78 |
| 8″ | 200 | 495 | 343 | 298.5 | 270 | 29 | 8-22.5 | 292 | 137 |
| 10″ | 250 | 622 | 406 | 362 | 324 | 30.5 | 12-25 | 350 | 207 |
| 12″ | 300 | 698 | 483 | 432 | 381 | 32 | 12-25 | 398 | 279 |
| 14″ | 350 | 787 | 533 | 47618 | 413 | 35 | 12-29 | 445 | 387 |
| 16″ | 400 | 864 | 597 | 539.8 | 470 | 37 | 16-29 | 490 | 446 |
| 18″ | 450 | 978 | 635 | 577.8 | 533 | 40 | 16-32 | 520 | 621 |
| 20″ | 500 | 978 | 698 | 635 | 584 | 43 | 20-32 | 546 | 770 |
| 24″ | 600 | 1295 | 813 | 749.3 | 692 | 48 | 20-35 | 880 | 970 |
| 2″ | 50 | 267 | 165 | 127 | 92 | 22.5 | 8-19 | 179.5 | 20 |
| 21/2″ | 65 | 292 | 190 | 150 | 105 | 25 | 8-22 | 190 | 24 |
| 3″ | 80 | 318 | 210 | 168 | 127 | 29.0 | 8-22.5 | 212.4 | 40 |
| 4″ | 100 | 356 | 254 | 200 | 157 | 32.0 | 12-22.5 | 246 | 51 |
| 6″ | 150 | 445 | 317.5 | 269.7 | 216 | 37.0 | 12-22.5 | 292 | 90 |
| 8″ | 200 | 533 | 381 | 330 | 270 | 41.5 | 12-25.5 | 328 | 175 |
| 10″ | 250 | 622 | 444.5 | 387 | 324 | 48.0 | 16-28.5 | 378.6 | 210 |
| 12″ | 300 | 71l | 521 | 451 | 381 | 51.0 | 16-32 | 420 | 286 |
| 14″ | 350 | 838 | 584 | 514 | 54 | 54 | 20-32 | 470 | 400 |
| 16″ | 400 | 864 | 648 | 572 | 57 | 57 | 20-35 | 530 | 550 |
| 18″ | 450 | 978 | 711 | 629 | 60 | 60 | 24-35 | 584 | 700 |
| 20″ | 500 | 1016 | 775 | 686 | 64 | 64 | 24-35 | 610 | 860 |
| 24″ | 600 | 1346 | 914 | 813 | 70 | 70 | 24-41 | 860 | 1931 |
| 2″ | 50 | 292 | 165 | 127 | 92 | 25 | 8-19 | 203 | 34 |
| 21/2″ | 65 | 330 | 190 | 150 | 105 | 29 | 8-22 | 229 | 45 |
| 3″ | 80 | 356 | 210 | 168 | 127 | 32 | 8-22 | 235 | 63 |
| 4″ | 100 | 432 | 273 | 216 | 157 | 38 | 8-25 | 286 | 114 |
| 6″ | 150 | 559 | 356 | 292 | 216 | 48 | 8-29 | 330 | 207 |
| 8″ | 200 | 660 | 419 | 349 | 270 | 56 | 12-29 | 381 | 387 |
| 10″ | 250 | 787 | 508 | 432 | 324 | 64 | 12-32 | 457 | 580 |
| 12″ | 300 | 838 | 559 | 489 | 381 | 67 | 16-35 | 584 | 778 |
| 14″ | 350 | 889 | 603 | 527 | 413 | 70 | 20-38 | 635 | 9869 |
| 16″ | 400 | 991 | 686 | 603 | 470 | 76 | 20-41 | 684 | 1380 |
