The application of the butterfly valve door occasion and application conditions
Butterfly valve door because of the butterfly valve gate valve door plank of applicable occasions and the application condition of the movement of the wipe with sex, so most of the butterfly valve door can be used in the medium with suspended solids, based on the strength of the seal can also be used for powder and granular media. The structure of the butterfly valve gate length and smaller overall height, opening and closing speed, when fully open, so low fluid resistance, when open to about 15 & deg; & 70 deg; Between, and can carry on sensitive flow control, the structure of butterfly valve door is best suited for production of large diameter valve gate. Under the condition of the following conditions, recommend choosing butterfly valve gate: (1) for throttling and adjusting control flow; (2) slurry medium and medium containing solid particles; (3) requiring valve door structure length short; (4) for opening and closing speed occasions; (5) the differential smaller places. In two position adjustment, reducing channel, low noise, have spirit of hole and gasification phenomenon, a small amount of leakage into the atmosphere, with abrasive medium, can choose butterfly valve gate. Under the condition of the special working condition of throttling or seal strict, or wear, low temperature, Cryogenic) Use of butterfly valve door, such as operating conditions require special design metal sealing belt adjusting device of the three special eccentric or double eccentric butterfly valve gate. Soft sealing butterfly valve is suitable for ventilation and dust removal pipe two-way opening and closing door and regulate, metallurgy, light industry, electric power, petroleum chemical industry system of gas pipeline and channel, etc. Metal to metal wire sealing double eccentric butterfly valve door is suitable for heating, steam, water and gas, oil, acid and alkali, such as line, as regulation and river closure device. Metal to metal surface seal triple eccentric butterfly valve gate except as large psa gas separation control valve gate, two-way pressure butterfly valve door also can be widely used in petroleum, chemical industry, metallurgy, electric power, food, medicine, water supply and drainage, gas, transportation and other fields.