wafer type butterfly valves are widely used in water conservancy projects, urban water supply and drainage, sewage treatment, electric power, petroleum, petrochemical, heating, shipbuilding, pharmaceutical, metallurgical and other industries. it is a device used to adjust or cut off the media in the pipe.
butterfly valve is mainly consisted of body, stem, disc, seat and driver(lever, gearbox, pneumatic and electric actuator) and so on.
on off and controlling flow of valve are made by turning stem and disc together.
1. small size, light weight and easy to maintain. it can be installed wherever needed.
2. simple and compact structure, fast 90 degree switch operation
3. the disc has a two-way bearing, which is perfectly sealed and has no leakage under pressure test.
4. the flow curve tends to be straight. excellent adjustment performance.
5. a variety of materials for different media.
6. strong cleaning and brush resistance, can adapt to harsh working conditions.
7. center plate structure, small opening and closing torque.
8. long service life. experienced the test of thousands of opening and closing exams.
9. can be used to cut and adjust the media.
1. normal diameter
2. normal pressure
3. suitable medium
corrosive environment, oil, gas, water
4. suitable temperature
-29℃ - 180℃
5. port type
6. connection ends
rf / npt / bw / sw
7. body / cover material
stainless steel / cast steel / cast iron
8. disc material
stainless steel / duplex steel / cast iron / bronze
9. seat material
epdm / nbr / viton / ptfe / nylon
10. stem material
stainless steel / duplex steel / cast steel
lever, gear, electric, pnewmatic
Anti static, small fluid resistance, good sealing performance of the valve seat, and small friction loss with the ball , prolong the service life of the ball valve.