PTFE butterfly valve
Overview
PTFE butterfly valve is designed to adapt to the needs of some corrosive environments with strong acid and alkali, petroleum, chemical industry, food and other special fields. The valve body is made of polytetrafluoroethylene and has a strong anti-corrosion effect. Under normal conditions, it can replace the stainless steel valve body and has a higher cost performance. The butterfly plate of the butterfly valve is installed in the diameter direction of the pipe. 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° and 90°. When it rotates to 90°, the valve is fully open.
Products details
Optional materials
Valve body: ductile iron, cast steel, 304, 316, 316L, etc.
Butterfly plate: ductile graphite plate (QT450), stainless steel plate (304, 316, 316L), rubber lined plate, PTFE lined, nylon plate, copper plate (C954), baked PTFE plate, duplex steel (2507, 2205, 1, 4529) etc.
Valve seat: X1 (natural food rubber), X2 (Hypalon), X3 (ethylene propylene rubber), X4 (chloroprene rubber), , X8 (silicone rubber), X9 (heat-resistant ethylene-propylene rubber), F4 (PTFE rubber), polyurethane rubber, etc.
Valve stem: 45#, 2Cr13, stainless steel (304, 316, 316L), etc.a
Product display
Installation and maintenance
1. During installation, the valve disc should stop in the closed position.
2. The opening position should be determined according to the rotation angle of the butterfly plate.
3. For butterfly valves with a bypass valve, the bypass valve should be opened before opening.
4. Installation should be carried out according to the manufacturer's installation instructions. Butterfly valves with heavy weight should be installed on a solid foundation.
Product details
Flat bottom valve seat
The flat-bottom valve seat prevents dirt accumulation and makes the seal more reliable. It is small in size and light in weight, making it easy to install and maintain.
Corrosion-resistant stainless steel
The internal parts of the valve are made of corrosion-resistant stainless steel and copper alloy materials, which can be used in sewage systems and suitable for harsh working environments.
o-ring seal
The valve stem is sealed with three O-rings, which greatly reduces the friction resistance during switching. The switch is light and does not leak.
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