Zhejiang Guoji Fluid Control Co., LTD
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Three eccentric large-diameter hard sealing butterfly valve
Butterfly valve has been widely used in many fields, such as petroleum, chemical, metallurgy, water and electricity, as a part to realize the on-off and flow control of pipeline system. In the known butterfly valve technology, the sealing form of sealing structure, sealing materials for rubber, ptfe and so on. Due to the limitation of structure characteristics, it is not suitable for high temperature, high pressure, corrosion resistance, wear resistance and other industries. There is a more advanced butterfly valve is three eccentric metal hard seal butterfly valve, valve body and valve seat are joined component, valve seat sealing surface layer surfacing welding temperature, corrosion resistant alloy material. Multi-layer soft stack sealing ring fixed on the valve plate, this butterfly valve compared with the traditional butterfly valve has high temperature resistance, light operation, opening and closing without friction, closed with the torque of the transmission mechanism to compensate for the sealing, improve the sealing performance of the butterfly valve and prolong the advantages of service life.
Butterfly valve has been widely used in many fields, such as petroleum, chemical, metallurgy, water and electricity, as a part to realize the on-off and flow control of pipeline system. In the known butterfly valve technology, the sealing form of sealing structure, sealing materials for rubber, ptfe and so on. Due to the limitation of structure characteristics, it is not suitable for high temperature, high pressure, corrosion resistance, wear resistance and other industries.
There is a more advanced butterfly valve is three eccentric metal hard seal butterfly valve, look at the valve body and seat are joined components, seat sealing surface layer surfacing welding temperature, corrosion resistant alloy material. Multi-layer soft stack sealing ring fixed on the valve plate, this butterfly valve compared with the traditional butterfly valve has high temperature resistance, light operation, opening and closing without friction, closed with the torque of the transmission mechanism to compensate for the sealing, improve the sealing performance of the butterfly valve and prolong the advantages of service life. However, the following problems still exist in the use of this butterfly valve:
Mounted metal hard sealing ball valve DYQ340H/Y
Eccentric ball valve using eccentric valve body, eccentric ball and valve seat, stem for rotary motion in the common trajectory of automatic centering, closing the process more and more tight, fully achieve the purpose of good sealing. Ball valve and valve seat completely separated, eliminate the wear of sealing ring, overcome the traditional ball seat and ball sealing surface always wear problem, non-metallic elastic materials are embedded in the metal seat, seat metal surface is well protected. This product is especially suitable for steel industry, aluminum, fiber, small solid particles, pulp, coal ash, petroleum gas and other media.
Full bore hard sealing ball valve
Zhejiang Guoji Fluid Control Co., LTD
Three eccentric large-diameter hard sealing butterfly valve Zhejiang Guoji Fluid Control Co., LTD


Full bore hard sealing ball valve

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