DN25 Cast Iron wafer Type Lug Manual anti-corrosive Seal Butterfly Valves

The butterfly plate of the wafer butterfly valve is installed in the diameter direction of the pipeline. In the cylindrical
channel of the butterfly valve body, the disc-shaped butterfly plate rotates around the axis, and the rotation angle is between
0°-90°, which can play a role in flow adjustment. When the butterfly plate rotates to 90°, the valve reaches the maximum Opening.
The wafer butterfly valve is simple in structure, small in size and light in weight, and consists of only a few parts. Moreover,
it can be opened and closed quickly by rotating 90°, and the operation is simple. At the same time, the valve has good fluid
control characteristics.

Unique and standardized designNominal diameter DN 150 up to DN 1600Nominal pressure PN 10, PN 16, PN 25 , PN 40Resilient seated according EN 593Face-to-face dimension according EN 558, 14 (F41Flange connection according EN 1092-2Clap disc with closed bearing-eyesBearing of the clap disc and at the body sealed with O-Ring-cagesShaft drive with PolyqonConnection of Polygon without additional security elementsISO-connection for driveRobust, maintenence-free slider crank mechanismSeat of the body: high quality welded or enamelledHigh quality of coating systemsModular drive system

By operating temperature:

(1) high temperature. t> 450 °C butterfly valve.

(2) medium temperature butterfly valve. 120 C< t< 450 ℃ butterfly valve.

(3) normal temperature butterfly valve. A 40 c & lt; t< 120 °C butterfly valve.

(4) low temperature butterfly valve. A 100 & lt; t< A 40 °C butterfly valve.

(5) ultra-low temperature butterfly valve. t< 100 °C butterfly valve.

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