D643H/W pneumatic three eccentric hard seal butterfly valve consists of pneumatic actuator and three eccentric hard seal butterfly valve. Pneumatic three eccentric hard seal butterfly valve has two-way sealing function, opening torque is small, flexible and convenient, energy saving; three-dimensional eccentric structure, so that the butterfly plate is tighter and tighter, and its sealing performance is reliable, to achieve no leakage; in the opening and closing of the valve plate and the valve seat is basically no friction, reduces the wear and tear of the valve seat sealing surface, and improves the service life of the butterfly valve. Seat seal adopts metal hard seal structure, temperature resistance is much higher than soft seal butterfly valve, can be used for high temperature media. Pneumatic actuator driven butterfly valve switch quickly, can be used for rapid cut-off. Equipped with solenoid valve, travel switch accessories, convenient remote control. Electrical valve positioner should be equipped when proportional adjustment control is required.
Product Features
- Butterfly valve adopts three eccentric structure, switching sealing surface wear is small, long service life.
- Metal hard seal structure, can be used for high temperature media.
- The applied torque can be increased to improve sealing and effectively ensure media sealing.
- Pneumatic actuator drive switching is fast and can be used for quick cut-off.
- Can be equipped with solenoid valves, travel switches, convenient remote automatic control.
- Large-size butterfly plate adopts quilted frame structure with high strength, large overflow area and small flow resistance.
- Three eccentric hard seal butterfly valve is resistant to high temperature, low temperature and corrosion.
Application Areas
Widely used in gold, electric power, petrochemical, and water supply and drainage and municipal construction and other industrial pipelines, for regulating the flow and carrier off the fluid use.
Product Parameters
Product Model | D643H-16C |
Valve body material | Cast Steel |
Cylinder Material | Aluminum |
Cylinder type | AT Double Acting |
Nominal pressure | ≤1.6Mpa |
Applicable medium | Water, Steam, Oil, etc. |
Applicable temperature | ≤325°C |
Product Size Reference
Nominal Diameter | L | D | D1 | D2 | b | H | H1 | L1 | L2 | N-D |
DN50 | 108 | 165 | 125 | 99 | 20 | 320 | 85 | 40 | 130 | 4-18 |
DN65 | 112 | 185 | 145 | 118 | 20 | 320 | 90 | 40 | 130 | 4-18 |
DN80 | 114 | 200 | 160 | 132 | 20 | 370 | 100 | 40 | 130 | 8-18 |
DN100 | 127 | 220 | 180 | 156 | 22 | 370 | 125 | 48 | 145 | 8-18 |
DN125 | 140 | 250 | 210 | 184 | 22 | 420 | 135 | 70 | 175 | 8-18 |
DN150 | 140 | 285 | 240 | 211 | 24 | 505 | 172 | 70 | 175 | 8-22 |
DN200 | 152 | 340 | 295 | 266 | 24 | 610 | 240 | 90 | 200 | 12-22 |
DN250 | 165 | 405 | 355 | 319 | 26 | 665 | 265 | 90 | 200 | 12-26 |
DN300 | 178 | 460 | 410 | 370 | 28 | 755 | 295 | 125 | 280 | 12-26 |
DN350 | 190 | 520 | 470 | 429 | 30 | 860 | 330 | 125 | 280 | 16-26 |
DN400 | 216 | 580 | 525 | 480 | 32 | 890 | 370 | 125 | 280 | 16-30 |
苏公网安备32021402002554号
