Description
Pnuematic butterfly valve introduction
Pneumatic butterfly valve is combined with pneumatic actuators and central line of butterfly valves. The valve stem drive the valve corn rolling 90 in the body which can realize the full open or full close action. This product can according to the sealing performance into metal seal and soft seal with compact structure?small volume?reliable operation?good sealing?easy maintenance installation convenient and the adoptability is strong advantages. Can be widely used in petroleum?chemical industry?light industry?papermaking industrial?pharmaceutical?car automatic control system on a remote concentrated or local control.
Technical parameters
Body | ASTM A536 65-45-12, WCB, CF8M |
Disc | ASTM A536 65-45-12 Nylon coated, CF8, CF8M, 2507, 1.4462 |
Seat | EPDM,NBR,FRM.PTFE |
Stem | SS420,SS431 |
Body style | wafer |
Nominal diameter | 2? – 80? (DN50mm – DN2000mm) |
Top flange | ISO5211 |
Operating pressure: | 16bar for DN50-DN300, 10bar for DN350-DN2000 |
Temperature range: | -20 °C to + 140 °C (depending on pressure, medium and material) |
Flange accommodation | EN 1092 PN 6/PN10/PN16 ASME Class 150 AS 4087 PN10/ PN16 JIS 5K/10K |
Pneumatic actuator
action | |
Double acting | Failure to maintain |
Single acting normally closed | Failure to close |
Single acting normally open | Failure to open |
Optional accessory | Solenoid valve limit switch box air filter relief pressure valve, E/P positioned manual device. |
Outline size drawing:
DN | Inch | GB standard size(mm) PN10/PN16 | Actuator size | |||||||
L | D1 | D2 | H1 | H2 | n-?d | A | B | C | ||
50 | 2 | 42 | 52.6 | 125 | 142 | 80 | 4-16 | 163 | 96 | 76 |
65 | 2 1/2 | 45 | 64.4 | 145 | 155 | 89 | 4-16 | 195 | 115 | 91 |
80 | 3 | 45 | 78.9 | 160 | 161 | 95 | 8-16 | 195 | 115 | 91 |
100 | 4 | 52 | 104.1 | 180 | 180 | 114 | 8-16 | 217 | 137 | 11 |
125 | 5 | 55 | 123.4 | 210 | 193 | 127 | 8-16 | 258 | 147 | 122 |
150 | 6 | 55 | 155.9 | 240 | 205 | 139 | 8-20 | 299 | 165 | 136 |
200 | 8 | 60 | 202.8 | 295 | 250 | 175 | 8-20/12-20 | 349 | 182 | 153 |
250 | 10 | 66 | 250.8 | 350/355 | 282 | 203 | 12-20/12-24 | 397 | 199 | 173 |
300 | 12 | 76 | 301.9 | 400/410 | 326 | 242 | 12-20/12-24 | 473 | 221 | 192 |
350 | 14 | 76 | 334 | 460/470 | 358 | 267 | 16-20/16-24 | 560 | 249 | 213 |
400 | 16 | 86 | 390 | 515/525 | 380 | 301 | 16-24/16-27 | 601 | 280 | 243 |
450 | 18 | 105 | 441 | 565/585 | 422 | 381 | 20-24/20-27 | 738 | 383 | 356 |
500 | 20 | 130 | 492 | 620/650 | 479 | 387 | 20-24/20-30 | 738 | 383 | 356 |
600 | 24 | 151 | 593 | 725/770 | 562 | 457 | 20-27/20-33 | 940 | 434 | 415 |