Applicable occasions of butterfly valve and application condition of

as a result of the butterfly Industrial Valves plate movement with polished, so most of the butterfly valve 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. Butterfly valve structure length and the overall height smaller, opening and closing speed, when fully open, with a small fluid resistance, when open to about 15 & deg; & 70 deg; Between, and can carry on sensitive flow control, the structure principle of butterfly valve is best suited for the production of large diameter valves. Choose butterfly valve under the condition of the following conditions, recommended: (1) for throttling and adjusting control flow; (2) slurry medium and medium containing solid particles; (3) requiring shorter valve structure; (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. Under the condition of the special working condition of throttling or seal strict, or wear, low temperature, Cryogenic) Using a butterfly valve, such as operating conditions need to use special design of triple eccentric metal sealing with conditioning or double eccentric special butterfly valve. Soft sealing butterfly valve is suitable for the ventilation and dust removal pipe two-way opening and closing 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 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 triple eccentric butterfly valve sealing except as large psa gas separation control valve, bidirectional pressure butterfly valve can be widely used in petroleum, chemical industry, metallurgy, electric power, food, medicine, water supply and drainage, gas, transportation and other fields.

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