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
 |
Double Orifice Air Release Valve | Festures of double air release valve Body is provided with a shock-proof inner tube to protect the float； Lower water pressure can be closed to... |
 |
Cast Steel Gate Valve | Categories: Gate Valve, Gate Valve By Material Tags: Isolation Valve, OS&Y Valve Description of Cast Steel Gate Valve: ZECO cast steel gat... |
 |
Pressure Relief(Sustaining) Valve | Basic informationThis sustaining valveis opened to prevent the pipeline and equipment from being damaged due to overpressure when the pressure in t... |
 |
4 Inch Butterfly Valve | Description of 4 Inch Butterfly Valve: ZECO 4 inch flanged gate valveis made of body, disc, stem, seat, stuffing box, gear etc. ZECO butterfly val... |
 |
Wafer Check Valve | The double plate wafer check valveis used for the pure pipeline, industry, environmental protection, water treatment, high-rise building water supp... |
Same products
 |
Pneumatic Plug Control Valve | 卖方: China MFRS Control Valve Manufacturer Co., Ltd. | Our manufacturing facility excels in producing Pneumatic Actuated Plug Control Valves that are de... |
 |
Electric Actuator Globe Control Valve | 卖方: China MFRS Control Valve Manufacturer Co., Ltd. | Enhance your industrial process with our Multi-Turn Electric Actuator Globe Control Valves, metic... |
 |
3 Way Ball Control Valve | 卖方: China MFRS Control Valve Manufacturer Co., Ltd. | s a leading Three Way Ball Control Valve Supplier, we offer precision-engineered valves in sizes ... |
 |
Ductile Iron Foot Valve Flange End | 卖方: Hebei Leading Metals & Piping Industries Co., Ltd. | A ductile iron foot valveis a kind of energy-saving valve. It is generally installed at the botto... |
 |
Dismantling Joints | 卖方: Hebei Leading Metals & Piping Industries Co., Ltd. | The pipe dismantling jointare double flanged fittings that accommodate up to longitudinal adjustm... |
