Ductile Iron/WCB Double Eccentric Butterfly Valve
Basic Info
- Quick opening and closing: The double eccentric flange butterfly valve is controlled by worm gear, the option is an electric actuator or pneumatic actuator.
- Good sealing performance: The double eccentric design keeps the contact surface between the valve seat and the valve plate at one point, effectively avoiding friction and wear between the valve seat and the valve plate, thereby providing excellent sealing performance and preventing medium leakage.
- Corrosion resistance: The valve body and valve plate of the double eccentric flange butterfly valve can be made of corrosion-resistant materials, which can adapt to the requirements of various corrosive media and extend the service life of the valve.
- The center of the valve stem deviates from the center of the valve and the center line of the pipeline, reducing friction during operation. The valve disc can be separated from the valve seat after rotating a certain angle, extending the service life of the valve.
- High reliability: The double eccentric flange butterfly valve adopts mechatronics design. The electric actuator can monitor the position and status of the valve in real time, and has automatic protection and alarm functions, which improves the reliability and safety of the system.
Paraments
| SIZE | H1 | H2 | L | f | ø2 | ø3 | n-ød1 | øX |
|---|---|---|---|---|---|---|---|---|
| DN100 | 178 | 123 | 190 | 3 | 70.0 | 90.00 | 4-10 | 20 |
| DN150 | 217 | 162 | 210 | 3 | 102.0 | 125.00 | 4-12 | 20 |
| DN200 | 250 | 175 | 230 | 3 | 102.0 | 125.00 | 4-12 | 25 |
| DN250 | 281 | 206 | 250 | 3 | 102.00 | 125.00 | 4-12 | 30 |
| DN300 | 306 | 246 | 270 | 4 | 125.00 | 150.00 | 4-14 | 34 |
| DN350 | 334 | 284 | 290 | 4 | 140.0 | 175.00 | 4-18 | 33 |
| DN400 | 374 | 304 | 310 | 4 | 140.0 | 175.00 | 4-18 | 41 |
| DN500 | 433 | 375 | 350 | 4 | 165.0 | 210.00 | 4-22 | 51 |
| DN600 | 493 | 436 | 390 | 5 | 165.0 | 210.00 | 4-22 | 51 |
| DN800 | 581 | 574 | 470 | 5 | 254.0 | 300.00 | 4-18 | 85 |
| DN900 | 692 | 606 | 510 | 5 | 254.0 | 300.00 | 4-18 | 85 |
| DN1000 | 722 | 685 | 550 | 5 | 254.0 | 300.00 | 8-18 | 85 |
| DN1200 | 845 | 796 | 630 | 5 | 298.0 | 350.00 | 8-22 | 105 |
Manufacture Process
Certificates of Zfa Valve
WRAS
CE
ISO 9001
EAC Russia
