Wafer Type Butterfly Valve
Wafer type butterfly valve is one butterfly valve with simple structure, small size and light weight. It is mainly composed of body, disc, rotating shaft, seat and transmission device (hand lever, worm gearbox, electric device). Its operation is easy, only rotating 90° could achieve quickly open and close. When the butterfly valve is in the fully open position, the thickness of the butterfly plate is the only resistance when the medium flows through the valve body, so the pressure drop generated by the valve is very small. Such it has better flow control characteristics.
1. Standard
|
Design & manufacturing |
EN593 |
|
Face to face |
EN558-1 |
|
Inspection & testing |
EN12266-1 |
2.Technical Specification
|
Size |
DN50-600 |
|
Working pressure |
PN10 / PN16 |
|
Applicable temperature |
0℃~80℃ |
|
Operation |
Hand lever / Gearbox / Electric actuator |
3. Main parts material
|
Part Name |
Material |
|
Body |
Ductile Iron |
|
Disc |
Ductile Iron/SS304/SS316 |
|
Stem |
SS420/SS410/SS416 |
|
Seat |
EPDM |
|
Fasteners |
Carbon steel/Stainless steel |
4. Features
- Simple and compact construction
- Small in size and light in weight
- Quick 90° on-off operation, low torque
- Good sealing capability, no leakage
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