Butterfly Valves have superiority. 1, simple structure, small size, light weight, open and close rapidly, flow resistance coefficient; 2, can be used with suspended solid particles in the medium, based on the strength of the sealing surface can also be used in powder and granular media. Applicable to two-way opening and closing the ventilation pipe and dust regulation, widely used in metallurgy, light industry, power, petrochemical and gas pipeline systems and other waterways. Butterfly Valves disadvantages: 1, flow control is not the scope, when the open up to 30%, the flow will be into more than 95%; 2, the structure of the butterfly valve and sealing material constraints, not for high-temperature, high pressure piping systems. General operating temperature below 300 ℃, PN40 (6 ~ 40) below. 3, the sealing performance relative to the ball valve member of this network for the scouring pump shchangrong published, reproduced must be attached to the address rights reserved.

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