Wholesale China Suppliers D71X Stainless Steel PTFE Seat Wafer Butterfly Valve Factory - Size DN40-DN600, Pressure PN6-PN16 Suppliers, Factories
Product Description
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Valve Type: |
Wafer butterfly valve |
Structure: |
Concentric |
|
Standard: |
EN593 |
Workmanship: |
Investment casting |
|
Sealing direction: |
Bidirectional |
Sealing grade: |
Zero leakage |
|
Temperature: |
-20°C < T < 120°C |
Operation: |
Handle/Lever |
Four stage sealing structure is adopted, and the sealing surface is equipped with temperature resistant and anti-aging silicone rubber elastic gasket valve seat, which can completely achieve zero leakage of media. For example, the special transition curve at the connection between the shaft head and the butterfly plate circumference and the reasonable interference fit of the valve seat, as well as the use of elastic O-rings and rigid gaskets and elastic rubber pads at the shaft shoulder end face of the shaft head, all contribute to improving the sealing performance.
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🧪Chemical Resistance
PTFE hardly reacts with most chemicals and can resist corrosion from strong acids, bases, and organic solvents. Only molten alkali metals and certain fluorides can degrade it at high temperatures.
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🌡️Temperature Range
It can operate continuously at temperatures ranging from -10°C to 180°C, with a maximum short-term tolerance temperature of approximately 290°C–320°C.
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⚙️Low Friction
The friction coefficient is as low as 0.02–0.10, which can reduce the wear of moving parts and prevent the medium from adhering to the valve.
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🛡️Non Reactive
PTFE does not absorb water or gas, and can remain stable and uncontaminated in humid environments.
