| Media: | Water |
|---|---|
| Driving Mode: | Electric |
| Connection Form: | Wafer |
| Structure: | Centre Sealing |
| Seal Form: | Force Sealed |
| Work Pressure: | Low Pressure (Pn<1.6mpa) |
| Customization: |
|---|
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Field of Application.
Product Name: D641X Flanged type Pneumatic on/off Butterfly Valve.
Pressure Rating: 1.0-1.6 Mpa.
Nominal Diameter: DN40-1000 mm.
Body Material: Ductile Iron,Steel WCB,304,316.
Standard flanges: DIN, ANSI, JIS.
Main Technical Parameters and Indexes of Performance.
| Valve Structure | Central line type |
| Pneumatic Actuator | Double acting |
| Single acting normally closed | |
| Single acting normally open | |
| Optional accessory | Solenoid valve,limit switch,pressure regulator,positioner,manual device. |
| Name of component | Material of component |
| Body | Ductile Iron,Steel WCB,304,316 |
| Stem | 2Cr13,304,316 |
| Disc | Ductile iron nickel plating, nylon coating, aluminum bronze, 304, 316 316L, 1.452, 2507 |
| Seat | NBR,EPDM |
| |
| DN | H | L | D1 | A | B | C |
| 50 | 120 | 108 | 125 | 163 | 96 | 76 |
| 65 | 130 | 112 | 145 | 195 | 115 | 91 |
| 80 | 145 | 114 | 160 | 195 | 115 | 91 |
| 100 | 156 | 127 | 180 | 217 | 137 | 11 |
| 125 | 170 | 140 | 210 | 258 | 147 | 122 |
| 150 | 188 | 140 | 240 | 299 | 165 | 136 |
| 200 | 205 | 152 | 295 | 349 | 182 | 153 |
| 250 | 235 | 165 | 350/355 | 397 | 199 | 173 |
| 300 | 280 | 178 | 400/410 | 473 | 221 | 192 |
| 350 | 330 | 190 | 460/470 | 560 | 249 | 213 |
| 400 | 320 | 216 | 515/525 | 601 | 280 | 243 |
| 450 | 400 | 222 | 565/585 | 738 | 383 | 356 |
| 500 | 500 | 229 | 620/650 | 738 | 383 | 356 |
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