Flange type soft sealing butterfly valve design structure, small overall size, light weight; PVC Butterfly Valve plate adopts double eccentric, quick opening and closing, light operation and effort; no sliding friction between butterfly plate and sealing ring, sealing surface wear resistance, long service life, reliable sealing and easy adjustment.
Structure: vertical plate structure, CPVC Butterfly Valve stem is integral metal hard seal valve Sealing Gasket is flexible graphite plate and stainless steel plate composite structure, installed on the valve body, butterfly plate sealing surface overwelded stainless steel. The sealing ring of the soft sealing valve is nitrile rubber / fluorine rubber, which is installed on the butterfly plate. Body seat welded stainless steel.
Working principle: The metal seal valve is designed to adopt the three-eccentric structure principle, using the inherent cam effect, completely eliminating all the friction between the valve seat and the sealing ring in the 90-degree stroke. Rubber Gasket soft seal butterfly valve is designed to use a single eccentric structure, unlike the midline soft seal, the butterfly plate rotates at about 20 degrees later, and the valve seat and the sealing ring are quickly separated, thus reducing friction.
The butterfly plate of the Stainless steel Handle Wafer Butterfly Valves is installed in the diameter direction of the pipe. In the cylindrical channel of the Stainless Steel Wafer Worm Gear Butterfly Valves body, the disc butterfly plate rotates around the axis, with the rotation Angle being between 0 and 90. When rotating to 90, the valve is fully open.
Features of flange-type soft seal butterfly valve:
1. Novel design structure, small overall size and light weight.
2. The butterfly plate adopts dual eccentric, quick opening and closing, and the operation is light and labor-saving.
3. There is no sliding friction between the butterfly plate and the sealing ring, and the sealing surface is resistant to wear, with long service life, reliable sealing and easy to adjust.
Flange-type hard seal Stainless Steel Butterfly Valves have the following characteristics:
1. Butterfly plateViton Gasket is a soft and hard stacked metal sheet, which has the dual advantages of hard metal sealing and elastic sealing, It has excellent sealing performance in both low temperature and high temperature conditions.
2. The three-dimensional eccentric structure, the valve seat and the butterfly plate have almost no friction, and have the sealing function of the tighter the closure.
3. The sealing surface of the valve body is overwelded stainless steel and cobalt-based carbide, and the sealing surface has wear resistant and long service life.
4. Unique structure, flexible operation, labor-saving, convenient, not affected by the high and low influence of the medium pressure, and reliable sealing performance.