Medium |
Water |
---|---|
Operation |
Manual |
Fields of application |
Power plant, Pumping stations, Water distribution |
Shell Material |
Cast iron, Cast Steel |
Size (mm) |
DN50, DN65, DN100, DN125, DN150, DN200, DN250, DN300, DN350, DN400, DN450, DN500, DN600 |
Pressure (bar) |
PN10, PN16 |
Wafer Butterfly Valve
(DN: 50 – 600mm, PN: 10 – 16bar)
This type of on-off valves known as flangeless butterfly valves are used to install between a pair of flanges or by the other words in-line installation. The lug-type wafer butterfly valves are used to install at the end of pipeline. These valves have the following advantages and benefits:
- Low pressure drop.
- Centric disk, mounted in three maintenance free-bearing bushes.
- Replaceable rubber sleeve.
- Appropriate sealing at both sides.
- Considering their low price, these valves could be used instead of gate valves atthe engine rooms.
- Easy installation due to low weight.
- Appropriate sealing around the shaft in a way that the fluid inside the valve has no contact with the shaft and its bushing and as a result there will be no sealing problems.
- Capability of installation at any required position (vertical, horizontal and inclined)
- Capable of installing electric, pneumatic or hydraulic actuator
- Final test according to DIN EN12266 or ISO 5208
- Face to face dimension according to DIN EN 558-1, Series20) or ISO 5752
- Designed to accommodate with flanges according to DIN EN 1092-2 (DIN2501) similar with ISO 7005-2.
- Multi turn actuator attachment according to ISO 5210
- Part turn actuator attachment according to ISO 5211
- Gearbox sealing in a way that no fluid can penetrate it even if the gearbox is fully submerged.
- All bolts and nuts in contact with fluid are made of stainless steel
- Coating paint: epoxy powder paint with electrostatic process
Part List and Materials of Wafer Butterfly Valves with Lever:
Part List and Materials of Wafer Butterfly Valves with Gearbox:
Ductile Cast Iron Wafer Butterfly Valves with Lever (DN50…200, PN10…16):
Ductile Cast Iron Wafer Butterfly Valves (DN250…600 - PN10…16):
Part List and Materials of Lug-Type Wafer Butterfly Valves with Lever:
Part List and Materials of Wafer Butterfly Valves with Gearbox:
Lug-Type Wafer Butterfly Valves (DN50…200 - PN10…16):
Wafer Butterfly Valves with Gearbox (DN250…600 - PN10…16):