Pneumatic rubber-lined butterfly valve D671J, D671X is a pneumatic actuator that can be equipped with any type of 90°swing by vulcanizing the rubber and the valve body in the butterfly valve through high temperature into one. With corrosion resistance, wear resistance, long service life, and non-toxic, antibacterial, anti-mold and other characteristics. Rubber-lined pneumatic butterfly valve connection is divided into flange type and clamp type; sealing structure has full rubber lining and half rubber lining.
| Pneumatic Rubber-lined butterfly valve | ||||
| Nominal diameter | DN (mm) | 50～2000 | ||
| Nominal pressure | PN (MPa) | 0.6 | 1 | 1.6 |
| Test Pressure | Strength test | 0.9 | 1.5 | 2.4 |
| Sealing test | 0.66 | 1.1 | 1.76 | |
| Air seal test | 0.6 | 0.6 | 0.6 | |
| Medium Usage | Air, water, sewage, stram, gas, oil, etc. | |||
| Actuator Type | AT、GT、AW、G series | |||
| Gas Pressure | 0.4-0.7MPa | |||
| Spare part | Material | |||
| Valve body | ductile iron, cast steel, alloy steel, stainless steel | |||
| Butterfly plate material | cast iron, stainless steel, special material | |||
| Seal ring | types of rubber, polytetrafluoroethylene | |||
| Valve stem | 2Cr13, stainless steel, etc | |||
| Filler | O-ring, flexible graphite O, etc | |||
| Q671X Pneumatic Rubber-lined butterfly valve main external and connection size 0.6~1.0MPa | |||||||||
| Nominal Diameter DN | L | H | Ho | A | B | Do | n-￠d | Do | n-￠d |
| 0.6MPa | 1.0MPa | ||||||||
| 50 | 43 | 63 | 315 | 180 | 65 | 110 | 4-￠18 | 125 | 4-￠18 |
| 65 | 46 | 70 | 330 | 180 | 65 | 130 | 4-￠18 | 145 | 4-￠18 |
| 80 | 46 | 83 | 390 | 245 | 72 | 150 | 8-￠18 | 160 | 8-￠18 |
| 100 | 52 | 105 | 431 | 240 | 72 | 170 | 8-￠18 | 180 | 8-￠18 |
| 125 | 56 | 115 | 455 | 240 | 72 | 200 | 8-￠18 | 210 | 8-￠18 |
| 150 | 56 | 137 | 626 | 350 | 93 | 225 | 8-￠22 | 240 | 8-￠22 |
| 200 | 60 | 164 | 720 | 350 | 93 | 280 | 8-￠22 | 295 | 12-￠22 |
| 250 | 68 | 206 | 800 | 550 | 350 | 335 | 12-￠22 | 355 | 12-￠26 |
| 300 | 78 | 230 | 860 | 600 | 350 | 395 | 12-￠22 | 410 | 12-￠26 |
| 350 | 78 | 248 | 883 | 600 | 350 | 445 | 16-￠22 | 470 | 16-￠26 |
| 400 | 102 | 289 | 972 | 600 | 350 | 495 | 16-￠26 | 525 | 16-￠30 |
| 450 | 114 | 320 | 1043 | 750 | 380 | 550 | 20-￠26 | 585 | 20-￠30 |
| 500 | 127 | 343 | 1098 | 750 | 380 | 600 | 20-￠26 | 650 | 20-￠33 |
| 600 | 154 | 413 | 1236 | 750 | 380 | 705 | 20-￠30 | 770 | 20-￠36 |
| 700 | 165 | 478 | 1431 | 750 | 380 | 810 | 24-￠30 | 840 | 24-￠36 |
| 800 | 190 | 525 | 1488 | 750 | 380 | 920 | 24-￠33 | 950 | 24-￠39 |
| 900 | 203 | 620 | 1615 | 1250 | 380 | 1020 | 28-￠33 | 1050 | 28-￠39 |
| 1000 | 216 | 725 | 1765 | 1500 | 580 | 1120 | 28-￠36 | 1170 | 28-￠42 |
| 1200 | 254 | 780 | 1976 | 1500 | 580 | 1340 | 32-￠39 | 1390 | 32-￠48 |
