Flanged Concentric Butterfly Valve
Basic information
This valve offlanged butterfly valve manufacturersis used in various service and drain lines as truncation and regulating equipment.
Features
1. Bidirectional sealing, no flow direction of the medium;
2. Valve body vulcanized EPDM, reliable sealing;
3. A dial with an opening indication showing the position of the disc switch;
4. Flow characteristics straight line, good regulation performance.
2. Valve body vulcanized EPDM, reliable sealing;
3. A dial with an opening indication showing the position of the disc switch;
4. Flow characteristics straight line, good regulation performance.
Principle
The rotary center of the flanged butterfly disc (that is, the center of the stem) is located on the centerline of the valve body and the sealing surface section of the disc. When the disc is closed, the disc's circular sealing surface squeezes the synthetic rubber seat so that the seat produces elastic deformation and forms the elastic force to seal the butterfly valve. If the remote control is required, different types of electric devices can be equipped according to different working conditions.
Installation and Commissioning
Clean the inner cavity and sealing cover of the valve before installation. This butterfly valve can be installed on the horizontal, vertical and any Angle pipe, and can be used in both directions. The butterfly valve must be in the closed position during installation to ensure that the disc does not collide with the pipe flange. Make sure the flange welding is correct. After the butterfly valve is installed, it is not allowed to weld the flange again, so as not to burn the rubber parts and the anti-corrosion coating. For specific use, please consult ZhengFeng Valve Group.
|
Part |
Material |
Standard |
|
Body |
Ductile Iron |
EN 1563/DIN 1693 |
|
Disc |
Ductile Iron |
EN 1563/DIN 1693 |
|
Seat |
EPDM / NBR |
ISO 4633 |
|
Stem |
Stainless Steel 431 |
EN10088-1/ASTM A959 |
|
Bolt |
Stainless Steel 431 |
EN10088-1/ASTM A959 |
|
Worm Actuator |
Ductile Iron |
EN 1563/DIN 1693 |
|
For the materials options not listed, consult factory. ZhengFeng manufactures valves in more than 50 different alloys. |
||
在线联系供应商
Other supplier products
 |
Floating Ball Valve | Description of Floating Ball Valve: ZECO floating ball valve has two seats supporting the ball. Under medium pressure, the ball can be pressed tigh... |
 |
Metal Seated Ball Valve | As one of the china ball valve manufacturers, ZECO always adhere to exceed customer expectations,to provide customers with more international stand... |
 |
Resilient Gate Valve for Underground 1025 | 6 inch water valveis commonly used with flanged gate valves and various upper valves for water, including dirt separator.Features of ZECO collector... |
 |
Wafer Check Valve | What is a Wafer Check Valve? Wafer check valves are in-line piping valves used to control fluid flow direction and reduce or fully prevent possibl... |
 |
Ductile Iron Gate Valve | Features of ductile iron sluice valve Visual valve switch easily; Quick opening and closing, light torque; Brass nut wear-resistant, long switch... |
Same products
 |
RV-01A Pressure Relief Valve/Hydraulic Valve | 卖方: Greentech International (Zhangqiu) Co., Ltd | Application:1.Usedinringblowerandsuitablebothpressure/vacuumuse.2.Staticpressuresettingeasilyadju... |
 |
right valves | 卖方: Yuanda Valve Group Co.,Ltd. | right valves Selecting the is essential for the efficiency, safety, and reliability of intel... |
 |
Water Valve | 卖方: Yuanda Valve Group Co.,Ltd. | Water Valve are critical components in plumbing systems, industrial pipelines, and water d... |
 |
Water Valve | 卖方: Yuanda Valve Group Co.,Ltd. | Water Valve are critical components in plumbing systems, industrial pipelines, and water d... |
 |
Water Valve | 卖方: Yuanda Valve Group Co.,Ltd. | Water Valve are critical components in plumbing systems, industrial pipelines, and water d... |
