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
 |
Butterfly Valve | ZECO Valve Group, founded in 1991 with focus on manufacturing china water valve, including control valves, balancing valves, gate valve, butterfly ... |
 |
Backflow Preventers | Basic informationThis valve is installed at the outlet of the water pump. It can prevent the backflow of the medium, linked with the water pump, an... |
 |
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... |
 |
Electric Ball Valve | Description of Electric Ball Valve: ZECOelectrically operated valveis named after the combination of electric actuator and ball valve. It is usual... |
 |
Resilient Gate Valve for Underground | Basic informationThis underground gate valveis used as a two-way closed circuit device.Features1. No need for sluice Wells, which reduces the amoun... |
Same products
 |
Dry Ash Gate Valve | 卖方: China Valve Industry Co., Ltd. | The dry ash gate valve is designed for both inlet and outlet pipelines. It features... |
 |
China factory High temperature double head bolt 2""-8UN Steam Turbine RSV N for power station | 卖方: DONGFANG YOYIK (DEYANG) ENGNIEERING CO; LTD | "China factory High temperature double head bolt 2""-8UN Steam Turbine RSV N for power stationOur... |
 |
Male Thread Nickel Plated Brass Butterfly Ball Valve | 卖方: Zhejiang Huibo Valve Technology Co., Ltd. | Male Thread Nickel Plated Brass Butterfly Ball Valve Material: Brass Body, Brass Bonnet, brass ba... |
 |
4800030000 For daewoo,evobus,mercedes-benz,paccar foot brake valve | 卖方: Zhuji Oubote Auto Parts Co., Ltd. | 4800030000 foot brake valve are attached to the brake pedal. This isthe valve that actually start... |
 |
Aluminum Gas Valve | 卖方: Dong Guan ABYDA Gas Valve Co., Ltd | Product Specification:1. Raw Material: Al Alloy + solid brass + Mild steel;2. Applicable for LPG,... |
