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Usage:
¡¡¡¡Bi-directional rubber seated butterfly valve (flange type,¡¡extension
type,¡¡wafer type)were developed by our factory in 1991.With the constant
improvement and replacement, the products have been awarded national
patents(ZL 91216899.4 and ZL 9824210.4). It is widely used to throttle
or adjust medium flow volume in industrial pipeline in the fields
of water supply and drainage, petroleum, power and city construction.
Product standard and specification£º
Design&Manufacture: GB12238¡¢MSS SP-67¡¢MSS SP-68¡¢API 609¡¢BS 5155
Face to face dimension: GB9113¡¢JB79¡¢ANSI B16.5¡¢MSS SP-44¡¢API 605
Pressure test: GB/T13927¡¢ZBJ16-006¡¢ API 598
Technological and performance parameters
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