New Type Wafer Concentric Butterfly Valve
Basic information
New Type Wafer Concentric Butterfly Valve ofwafer butterfly valve manufacturers can be used as adjusting and intercepting equipment in a variety of corrosive operating conditions.
Features
1. Body jaw adapts to 10bar and 16bar bolt fixation;
2. Special flange for butterfly valve is not required during installation;
3. Disc for spraying nylon, corrosion resistant;
4. No pin structure, no corrosion point.
2. Special flange for butterfly valve is not required during installation;
3. Disc for spraying nylon, corrosion resistant;
4. No pin structure, no corrosion point.
Principle
Because large diameter may have too much torque, the large diameter is recommended to use the turbine for easier manual operation.
Installation and Commissioning
Clean the sealing cover of butterfly valve and dirt in the pipeline, the flange mouth on the pipeline must be right, pressure the rubber sealing ring of concentric butterfly valve, there is no need to use the sealing washer, it is forbidden to install the concentric butterfly valve and weld the flange, otherwise it will burn the rubber sealing ring of butterfly valve. For specific use, please consult ZhengFeng Valve Group.
|
Part |
Material |
Standard |
|
Body |
Ductile Iron |
EN 1563/DIN 1693 |
|
Disc |
Ductile Iron+Nylon |
EN 1563/ISO 4633 |
|
Stem |
Stainless Steel 431 |
EN10088-1/ASTM A959 |
|
Handle |
Ductile Iron |
EN 1563/DIN 1693 |
|
Seat |
EPDM |
ISO 4633 |
|
Bushing |
CuZn39Pb1 / C37000 |
EN12167/ASTM B135 |
|
For the materials options not listed, consult factory. ZhengFeng manufactures valves in more than 50 different alloys. |
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