衬氟隔膜阀引用标准:
遵循GB/T12239,BS 5156标准
衬氟隔膜阀结构特点:
1、复合隔膜将阀体下部内腔与阀盖内腔隔开,并与之形成直流通道,使隔膜上部的阀杆、阀瓣等内件与介质完全隔离,省去填料密封结构,介质的内漏和外漏可同时避免。
2、做为执行元件的膜片由于频繁的启闭易产生疲劳断裂,应视工况、介质特性进行定期更换。
3、塑料的防腐性能及推荐使用温度见“阀门及管路附件用塑料衬里性能表”。
衬氟隔膜阀主要零件的材料说明:
序号 | 零件名称 | 灰铸铁 | 铸钢 | 不锈耐酸铸钢 | 超低碳不锈耐酸铸钢 | ||
Z | C | P | R | PL | PL | ||
1 | 阀体/阀盖 | HT250 | WCB | CF8 | CF8M | CF3 | CF3M |
2 | 阀瓣/阀杆 | 35 | 1Cr13 | 1Cr18Ni9Ti | 1Cr18Ni12Mo2Ti | 00Cr18Ni10 | 00Cr17Ni14Mo2 |
3 | 衬里/阀座 | PCTEF(F3)、FEP(F46)、PFA(可溶性F4)、PP、PO | |||||
4 | 隔膜 | PEP(F46)/CR(氯丁橡胶)、PFA(可溶性F4)/FPDM(乙丙橡胶) | |||||
5 | 支架 | PTFE(F4) | CF8 | CF8 | |||
6 | 阀杆螺母 | ZCuAl10Fe3 | ZCuAl10Fe3 | ZCuAl10Fe3 | |||
7 | 紧固螺栓 | 35 | 1Cr17Ni2 | 1Cr18Ni9Ti | |||
8 | 螺母 | 45 | 0Cr18Ni9 | 0Cr18Ni9 | |||
9 | 手轮 | WCB | WCB | WCB |
衬氟隔膜阀主要外形尺寸:
公称通径 | 标准值 | 参考值 | ||||||||||
DN(mm) | NPS(inch) | L | D | D1 | D2 | f | b | Z-φd | W | D0 | H | WT(kg) |
PN0.6MPa | ||||||||||||
15 | 1/2 | 130 | 80 | 55 | 40 | 2 | 12 | 4-φ12 | 120 |
| 80 | 1.6 |
20 | 3/4 | 130 | 90 | 65 | 50 | 2 | 14 | 4-φ12 | 120 |
| 90 | 2.4 |
25 | 1 | 140 | 100 | 75 | 60 | 2 | 14 | 4-φ12 | 160 |
| 100 | 3.4 |
32 | 11/4 | 165 | 120 | 90 | 70 | 2 | 16 | 4-φ14 | 160 |
| 110 | 4.8 |
40 | 11/2 | 165 | 130 | 100 | 80 | 3 | 16 | 4-φ14 | 200 |
| 120 | 6.0 |
50 | 2 | 203 | 140 | 110 | 90 | 3 | 16 | 4-φ14 | 250 |
| 135 | 8.8 |
65 | 21/2 | 222 | 160 | 130 | 110 | 3 | 16 | 4-φ14 | 250 |
| 145 | 11.5 |
80 | 3 | 241 | 185 | 150 | 125 | 3 | 18 | 4-φ18 | 300 |
| 180 | 15.2 |
100 | 4 | 305 | 205 | 170 | 145 | 3 | 18 | 4-φ18 | 300 |
| 195 | 18.8 |
125 | 5 | 356 | 235 | 200 | 175 | 3 | 20 | 8-φ18 | 350 |
| 210 | 22.5 |
150 | 6 | 394 | 260 | 225 | 200 | 3 | 20 | 8-φ18 |
| 200 | 450 | 48 |
200 | 8 | 457 | 315 | 280 | 255 | 3 | 22 | 8-φ18 |
| 200 | 490 | 65 |
250 | 10 | 533 | 370 | 335 | 310 | 3 | 24 | 12-φ18 |
| 240 | 550 | 88 |
300 | 12 | 610 | 435 | 395 | 362 | 4 | 24 | 12-φ23 |
| 280 | 600 | 125 |
350 | 14 | 686 | 485 | 445 | 412 | 4 | 26 | 12-φ23 |
| 280 | 675 | 185 |
400 | 16 | 762 | 535 | 495 | 462 | 4 | 28 | 16-φ23 |
| 320 | 780 | 255 |
450 | 18 | 864 | 590 | 550 | 518 | 4 | 28 | 16-φ23 |
| 360 | 820 | 320 |
500 | 20 | 914 | 640 | 600 | 568 | 4 | 30 | 16-φ23 |
| 360 | 910 | 405 |
公称通径 | 标准值 | 参考值 | ||||||||||
DN(mm) | NPS(inch) | L | D | D1 | D2 | f | b | Z-φd | D0 | H | H1 | WT(kg) |
PN1.0MPa | ||||||||||||
15 | 1/2 | 108 | 95 | 65 | 45 | 2 | 14 | 4-φ14 | 100 | 105 | 110 | 3.5 |
20 | 3/4 | 117 | 105 | 75 | 55 | 2 | 16 | 4-φ14 | 100 | 115 | 125 | 4 |
25 | 1 | 127 | 115 | 85 | 65 | 2 | 16 | 4-φ14 | 120 | 120 | 135 | 5.5 |
32 | 11/4 | 146 | 135 | 100 | 78 | 2 | 18 | 4-φ18 | 120 | 125 | 150 | 8 |
40 | 11/2 | 159 | 145 | 110 | 85 | 3 | 18 | 4-φ18 | 140 | 135 | 175 | 11 |
50 | 2 | 190 | 160 | 125 | 100 | 3 | 20 | 4-φ18 | 140 | 155 | 195 | 14 |
65 | 21/2 | 206 | 180 | 145 | 120 | 3 | 20 | 4-φ18 | 200 | 170 | 200 | 23 |
80 | 3 | 254 | 195 | 160 | 135 | 3 | 22 | 4-φ18 | 200 | 200 | 255 | 29 |
100 | 4 | 305 | 215 | 180 | 155 | 3 | 22 | 8-φ18 | 280 | 270 | 325 | 46 |
125 | 5 | 356 | 245 | 210 | 185 | 3 | 24 | 8-φ18 | 320 | 335 | 405 | 70 |
150 | 6 | 406 | 280 | 240 | 210 | 3 | 24 | 8-φ23 | 320 | 370 | 450 | 95 |
200 | 8 | 521 | 335 | 295 | 265 | 3 | 26 | 8-φ23 | 400 | 480 | 600 | 170 |
250 | 10 | 635 | 390 | 350 | 320 | 3 | 28 | 12-φ23 | 500 | 545 | 620 | 270 |
300 | 12 | 749 | 440 | 400 | 368 | 4 | 28 | 12-φ23 | 500 | 585 | 680 | 320 |