Product model: D641W
Nominal diameter: DN50 ~ 2000mm
Pressure range: PN0.25mpa ~ 0.6MPa
Applicable temperature: ≤ 425 ℃
Design standard: JB / T8692-1998
Structure length: GB / T12221-1989
Pressure test: GB / T13927-1992
Connection mode: flange type
Scope of application: metallurgy, environmental protection and chemical industry
Driving mode: pneumatic, regulating valve type and switch type
PRODUCT OVERVIEW
Pneumatic ventilation flange butterfly valve is a valve designed for the ventilation system of various industries. It is mainly assembled by pneumatic actuator and ventilation butterfly valve. The material selection of ventilation butterfly valve is determined according to the high temperature and normal temperature used on site. The valve is mainly applicable to ventilation system pipes in metallurgy, environmental protection, chemical industry, power station, glass and other industries. The compressed air is used as the power to receive the industrial signal command, drive the valve rod to drive the rotation of the disc plate to complete the opening and closing and adjustment of the valve.
PRODUCT FEATURES
1. Novel and reasonable design, unique structure and small operating torque. And the operation is simple, the switch is smart, and the opening and closing is fast.
2. The material of the valve can be selected according to the on-site pressure and temperature to meet the conditions of normal temperature, high temperature and different temperatures.
MAIN PERFORMANCE SPECIFICATIONS
| Nominal diameter | DN（mm） | 50～2000 | ||
|---|---|---|---|---|
| Nominal pressure | PN（MPa） | 0.05 | 0.25 | 0.6 |
| Test pressure | strength test | 0.075 | 0.375 | 0.9 |
| Sealing test | ≤ 1.5% leakage | |||
| Applicable media | Gas, dusty gas, flue gas, etc | |||
| Applicable temperature | -40～+425℃ | |||
MATERIAL OF MAIN PARTS
| Part name | Material Science |
|---|---|
| valve body | Cast steel, stainless steel, chromium nickel molybdenum titanium steel, chromium molybdenum titanium steel and other special materials |
| Disc | Cast steel, stainless steel, chromium nickel molybdenum titanium steel, chromium molybdenum titanium steel and other special materials |
| seal ring | Same as valve body |
| Valve stem | Carbon steel, 2Cr13, stainless steel, chromium nickel molybdenum titanium steel |
| Filler | Fluoroplastics, flexible graphite |
MAIN CONNECTION DIMENSIONS
| Nominal diameter | Structure length | Overall dimension (reference value) | Connection size (standard value) | weight（kg） | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 0.05MPa and 0.25MPa | 0.6MPa | |||||||||||
| mm | inch | L | H | H1 | A | D | D1 | n-d | D | D1 | n-d | |
| 50 | 2 | 108 | 70 | 337 | 180 | 140 | 110 | 4-14 | 140 | 110 | 4-14 | 16 |
| 65 | 2-1/2 | 112 | 80 | 357 | 180 | 160 | 130 | 4-14 | 160 | 130 | 4-14 | 17 |
| 80 | 3 | 114 | 95 | 385 | 180 | 190 | 150 | 4-18 | 190 | 150 | 4-18 | 19 |
| 100 | 4 | 127 | 105 | 405 | 180 | 210 | 170 | 4-18 | 210 | 170 | 4-18 | 22 |
| 125 | 5 | 140 | 120 | 483 | 245 | 240 | 200 | 8-18 | 240 | 200 | 8-18 | 27 |
| 150 | 6 | 140 | 132 | 508 | 245 | 265 | 225 | 8-18 | 265 | 225 | 8-18 | 31 |
| 200 | 8 | 152 | 160 | 566 | 245 | 320 | 280 | 8-18 | 320 | 280 | 8-18 | 47 |
| 250 | 10 | 165 | 187 | 623 | 245 | 375 | 335 | 12-18 | 375 | 335 | 12-18 | 68 |
| 300 | 12 | 178 | 220 | 750 | 355 | 440 | 395 | 12-22 | 440 | 395 | 12-22 | 79 |
| 350 | 14 | 190 | 245 | 803 | 355 | 490 | 445 | 12-22 | 490 | 445 | 12-22 | 130 |
| 400 | 16 | 216 | 270 | 852 | 355 | 540 | 495 | 16-22 | 540 | 495 | 16-22 | 141 |
| 450 | 18 | 222 | 297 | 907 | 355 | 595 | 550 | 16-22 | 595 | 550 | 16-22 | 190 |
| 500 | 20 | 229 | 322 | 960 | 355 | 645 | 600 | 20-22 | 645 | 600 | 20-22 | 225 |
| 600 | 24 | 267 | 377 | 1080 | 550 | 755 | 705 | 20-26 | 755 | 705 | 20-26 | 245 |
| 700 | 28 | 292 | 430 | 1185 | 550 | 860 | 810 | 24-26 | 860 | 810 | 24-26 | 320 |
| 800 | 32 | 318 | 487 | 1300 | 550 | 975 | 920 | 24-30 | 975 | 920 | 24-30 | 405 |
| 900 | 36 | 330 | 537 | 1400 | 550 | 1075 | 1020 | 24-30 | 1075 | 1020 | 24-30 | 500 |
| 1000 | 40 | 410 | 587 | 1500 | 550 | 1175 | 1120 | 28-30 | 1175 | 1120 | 28-30 | 700 |
| 1200 | 48 | 470 | 702 | 1825 | 600 | 1375 | 1320 | 32-30 | 1405 | 1340 | 32-33 | 750 |
