1、閥座的密封結構應為彈性有預緊力,上、下游密封座同時密封的結構。閥座與密封物間始終為面對面密封;
2、閥座有自清洗功能,并且在閥門開啟或關閉過程中不受氣流的直接沖刷。閥座應由有潤滑、不磨損材料制成;
3、閥門執行機構的故障不會影響到閥門的其它部分,維修和更換工作能夠在不拆下閥門的情況下進行。
設計規范:JB/T5298
結構長度:JB/T5298
連接法蘭:HG/T 20592
試驗與檢驗:JB/T5298
壓力-溫度:GB/T12224
公稱通徑:DN50~1000mm
公稱壓力:PN1.6~10MPa
適用溫度:-19~121℃
主要材質:WCB、WC6
適用介質:水、油品、蒸汽
公稱壓力(PN) Nominal pressure | DN (mm) | L | D | D1 | D2 | D0 | f | b | H | H1 | Z-φd | |||
DPZ43/543/643/943F | ||||||||||||||
1.6MPa | 50 | 178 | 165 | 125 | 102 | 250 | 2 | 18 | 584 | 80 | 4-18 | |||
65 | 190 | 185 | 145 | 122 | 250 | 2 | 18 | 634 | 95 | 8-18 | ||||
80 | 203 | 200 | 160 | 138 | 250 | 2 | 20 | 688 | 100 | 8-18 | ||||
100 | 229 | 220 | 180 | 158 | 300 | 2 | 20 | 863 | 114 | 8-18 | ||||
125 | 254 | 250 | 210 | 188 | 350 | 2 | 22 | 940 | 132 | 8-18 | ||||
150 | 267 | 285 | 240 | 212 | 350 | 2 | 22 | 1030 | 150 | 8-22 | ||||
200 | 292 | 340 | 295 | 268 | 350 | 2 | 24 | 1277 | 168 | 12-22 | ||||
250 | 330 | 405 | 355 | 320 | 400 | 2 | 26 | 1491 | 203 | 12-26 | ||||
300 | 356 | 460 | 410 | 378 | 450 | 2 | 28 | 1701 | 237 | 12-26 | ||||
350 | 381 | 520 | 470 | 428 | 500 | 2 | 30 | 1875 | 265 | 16-26 | ||||
400 | 406 | 580 | 525 | 490 | 305 | 2 | 32 | 2180 | 300 | 16-30 | ||||
450 | 432 | 640 | 585 | 550 | 305 | 2 | 40 | 2440 | 325 | 20-30 | ||||
500 | 457 | 715 | 650 | 610 | 305 | 2 | 44 | 2860 | 360 | 20-33 | ||||
600 | 508 | 840 | 770 | 725 | 305 | 2 | 54 | 3450 | 425 | 20-36 | ||||
700 | 610 | 910 | 840 | 795 | 305 | 2 | 42 | 3960 | 460 | 24-36 | ||||
800 | 660 | 1025 | 950 | 900 | 305 | 2 | 42 | 4550 | 512 | 24-39 | ||||
900 | 711 | 1125 | 1050 | 1000 | 250 | 2 | 44 | 5250 | 565 | 28-39 | ||||
1000 | 811 | 1255 | 1170 | 1115 | 250 | 2 | 46 | 5870 | 630 | 28-42 | ||||
2.5MPa | 50 | 178 | 165 | 125 | 102 | 250 | 2 | 20 | 584 | 80 | 4-18 | |||
65 | 190 | 185 | 145 | 122 | 300 | 2 | 22 | 634 | 95 | 8-18 | ||||
80 | 203 | 200 | 160 | 138 | 350 | 2 | 24 | 688 | 100 | 8-18 | ||||
100 | 229 | 235 | 190 | 162 | 350 | 2 | 24 | 863 | 114 | 8-22 | ||||
125 | 254 | 270 | 220 | 188 | 350 | 2 | 26 | 940 | 132 | 8-26 | ||||
150 | 267 | 300 | 250 | 218 | 400 | 2 | 28 | 1030 | 150 | 8-26 | ||||
200 | 292 | 360 | 310 | 278 | 450 | 2 | 30 | 1277 | 168 | 12-26 | ||||
250 | 330 | 425 | 370 | 335 | 500 | 2 | 32 | 1491 | 203 | 12-30 | ||||
300 | 356 | 485 | 430 | 395 | 305 | 2 | 34 | 1701 | 237 | 16-30 | ||||
350 | 381 | 555 | 490 | 450 | 305 | 2 | 38 | 1875 | 265 | 16-33 | ||||
400 | 406 | 620 | 550 | 505 | 305 | 2 | 40 | 2180 | 300 | 16-36 | ||||
450 | 432 | 670 | 600 | 555 | 305 | 2 | 46 | 2440 | 325 | 20-36 | ||||
500 | 457 | 730 | 660 | 615 | 305 | 2 | 48 | 2860 | 360 | 20-36 | ||||
600 | 508 | 845 | 770 | 720 | 305 | 2 | 58 | 3450 | 425 | 20-39 | ||||
700 | 610 | 960 | 875 | 820 | 305 | 2 | 50 | 3960 | 460 | 24-42 | ||||
800 | 660 | 1085 | 990 | 930 | 305 | 2 | 54 | 4550 | 512 | 24-48 |
公稱壓力 (PN) Nominal pressure | DN (mm) | L | D | D1 | D2 | Y | D0 | f | f2 | b | H | H1 | Z-φd | |
D P Z 4 3 / 5 4 3 / 6 4 3 / 9 4 3 F | ||||||||||||||
4.0MPa | 50 | 216 | 165 | 125 | 99 | 88 | 250 | 2 | 4 | 20 | 584 | 80 | 4-18 | |
65 | 241 | 185 | 145 | 118 | 110 | 250 | 2 | 4 | 22 | 634 | 95 | 8-18 | ||
80 | 283 | 200 | 160 | 132 | 121 | 250 | 2 | 4 | 24 | 679 | 102 | 8-18 | ||
100 | 305 | 235 | 190 | 156 | 150 | 300 | 2 | 4.5 | 24 | 863 | 115 | 8-22 | ||
125 | 381 | 270 | 220 | 184 | 176 | 350 | 2 | 4.5 | 26 | 940 | 133 | 8-26 | ||
150 | 403 | 300 | 250 | 211 | 204 | 350 | 2 | 4.5 | 28 | 1040 | 152 | 8-26 | ||
200 | 419 | 375 | 320 | 284 | 260 | 350 | 2 | 4.5 | 34 | 1282 | 188 | 12-30 | ||
250 | 457 | 450 | 385 | 345 | 313 | 400 | 2 | 4.5 | 38 | 1495 | 223 | 12-33 | ||
300 | 502 | 515 | 450 | 409 | 364 | 450 | 2 | 4.5 | 42 | 1701 | 250 | 16-33 | ||
350 | 762 | 580 | 510 | 465 | 422 | 500 | 2 | 5 | 46 | 1880 | 280 | 16-36 | ||
400 | 838 | 660 | 585 | 535 | 474 | 305 | 2 | 5 | 50 | 2200 | 310 | 16-39 | ||
450 | 914 | 685 | 610 | 560 | 524 | 305 | 2 | 5 | 57 | 2480 | 335 | 20-39 | ||
500 | 991 | 755 | 670 | 615 | 576 | 305 | 2 | 5 | 57 | 2890 | 380 | 20-42 | ||
600 | 1143 | 890 | 795 | 735 | 678 | 305 | 2 | 6 | 72 | 3460 | 450 | 20-48 | ||
6.4MPa | 50 | 250 | 180 | 135 | 99 | 88 | 250 | 2 | 4 | 26 | 584 | 90 | 4-22 | |
65 | 280 | 205 | 160 | 118 | 110 | 250 | 2 | 4 | 26 | 634 | 105 | 8-22 | ||
80 | 310 | 215 | 170 | 132 | 121 | 250 | 2 | 4 | 28 | 679 | 110 | 8-22 | ||
100 | 350 | 250 | 200 | 156 | 150 | 300 | 2 | 4.5 | 30 | 763 | 130 | 8-26 | ||
125 | 400 | 295 | 240 | 184 | 176 | 350 | 2 | 4.5 | 34 | 970 | 150 | 8-30 | ||
150 | 450 | 345 | 280 | 211 | 204 | 350 | 2 | 4.5 | 36 | 1038 | 175 | 8-33 | ||
200 | 550 | 415 | 345 | 284 | 260 | 350 | 2 | 4.5 | 42 | 1282 | 210 | 12-36 | ||
250 | 650 | 470 | 400 | 345 | 313 | 400 | 2 | 4.5 | 46 | 1495 | 240 | 12-36 | ||
300 | 750 | 530 | 460 | 409 | 364 | 450 | 2 | 4.5 | 52 | 1965 | 270 | 16-36 | ||
350 | 850 | 600 | 525 | 465 | 422 | 500 | 2 | 5 | 56 | 2185 | 300 | 16-39 | ||
400 | 950 | 670 | 585 | 535 | 474 | 305 | 2 | 5 | 60 | 2573 | 335 | 16-42 | ||
10.0MPa | 50 | 292 | 195 | 145 | 99 | 88 | 250 | 2 | 4 | 28 | 590 | 100 | 4-26 | |
65 | 330 | 220 | 170 | 118 | 110 | 250 | 2 | 4 | 30 | 640 | 115 | 8-26 | ||
80 | 356 | 230 | 180 | 132 | 121 | 250 | 2 | 4 | 32 | 680 | 120 | 8-26 | ||
100 | 432 | 265 | 210 | 156 | 150 | 300 | 2 | 4.5 | 36 | 870 | 135 | 8-30 | ||
125 | 508 | 315 | 250 | 284 | 176 | 350 | 2 | 4.5 | 40 | 980 | 155 | 8-33 | ||
150 | 559 | 355 | 290 | 211 | 204 | 350 | 2 | 4.5 | 44 | 1100 | 180 | 12-33 | ||
200 | 660 | 430 | 360 | 284 | 260 | 350 | 2 | 4.5 | 52 | 1315 | 220 | 12-36 | ||
250 | 787 | 505 | 430 | 345 | 313 | 400 | 2 | 4.5 | 60 | 1605 | 255 | 12-39 | ||
300 | 838 | 585 | 500 | 409 | 364 | 450 | 2 | 4.5 | 68 | 1925 | 295 | 16-42 | ||
350 | 889 | 655 | 560 | 465 | 422 | 500 | 2 | 5 | 74 | 2280 | 335 | 16-48 |