SIZE : DN100-1200
Pressure :150LB
Flanged End : ASME B16.5/ ASME B16.47-150LB
Face to Face: API609/ ASME B16.10/AWWA C504
Top Flange : ISO5211
Tightness :ISO5208/API598/EN1266-1
Material:
No. |
Part Name |
Material |
1 |
Body |
GGG50 | A536 | A395 | WCB | CF8 (304) | CF8M (316) |
2 |
Disc |
GGG50 | A536 | A395 | WCB | CF8 (304) | CF8M (316) |
3 |
Seat |
Buna-N(NBR) | EPDM | Nature Rubber | Silicon Rubber | VITON |
4 |
Stem |
AISI 304 | AISI 420(2Cr13) | 1.4462 | Monel | 17-4PH |
5 |
Bushing |
PTFE/Lubricating |
6 |
Operated |
Hand Lever | Worm Gear | Pneumatic | Electrical |
Features:
The double eccentric butterfly valve is further improved on the basis of the single eccentric butterfly valve. Its structural feature is that the axis of the valve stem is both separated from the center of the butterfly plate and replaces the center of the body. The double eccentric effect enables the butterfly plate to quickly leave the valve seat after the valve is opened, eliminating unnecessary excessive extrusion and scratching between the butterfly plate and the valve seat, weakening the opening resistance, reducing wear, and improving The valve seat is worn. The scraped sail is reduced, and at the same time, the double eccentric butterfly valve can also use a metal valve seat, which improves the application of the butterfly valve in high temperature fields.
1. The electric double eccentric flange butterfly valve is controlled by an electric actuator, which is simple and convenient to operate. It can achieve fast opening and closing actions and improve operating efficiency.
2. The electric double eccentric flange butterfly valve can be fine-tuned as needed, to accurately control flow and pressure, and is suitable for certain systems that require operating accuracy.
3. 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.
4. The valve body and valve plate of the electric 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.
5. Due to the characteristics of the double eccentric design, the valve plate of the electric double eccentric flange butterfly valve will not cause friction with the valve seat during the opening process, and can provide a large flow capacity and is suitable for systems requiring large flow rates.
6. The electric 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.