A variety of sealing structure, stainless steel butterfly valve is mainly synthetic materials such as stainless steel, rubber, ptfe, rubber and ptfe sealing ring of a class is not suitable for high temperature, high pressure resistance, corrosion resistance and wear resistance. Stainless steel butterfly valve sealing performance is good, also recognized in the industry, so the stainless steel butterfly valve is widely used in many fields in pipeline engineering main function is to control the flow rate and truncation, in chemical, petroleum, metallurgy, water and electricity, etc widely used. Stainless steel butterfly valve sealing ring what benefits: stainless steel sealing ring has the double advantage of elastic seal and metal hard seal, soft multi-layer fold type sealing ring is fixed on the valve plate, with the traditional stainless steel butterfly valve with high temperature resistant, convenient operation, opening and closing without friction, not only have high butterfly valve sealing performance still can prolong service life. Whether in low or high temperature working conditions of use, has good sealing performance and corrosion resistance. Stainless steel butterfly valve is a main product of our company. Let's explain the classification of stainless steel butterfly valves. According to the working stress classification ( 1) The vacuum butterfly valve. Working pressure is lower than the atmosphere of butterfly Industrial Valves. ( 2) Low pressure butterfly valve. Nominal pressure PN< 6 mpa butterfly valve. < 强= ' ” >
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