PQ side mounted two way sealed eccentric hemisphere valve

PQ side mounted two-way seal eccentric hemisphere valve is developed on the basis of absorbing the clip type large flow through valve produced by CANALI company of Germany. Its structure adopts the principle of eccentric clamping, and achieves the purpose of valve tightening, adjustment and closing through the transmission mechanism. The seal pair is a metal face ring with hard face seal contact. The double eccentric structure is in the open valve core located in the ball chamber, and the flow section is small When the valve is opened, the surface of the valve core is gradually along the valve seat, which can effectively remove the scaling obstacles and achieve reliable sealing. The first feature is that it is particularly effective for the mixed flow transportation of two-phase mixed flow easy to scale solid precipitation; the second feature is that the hemisphere of the valve is overlaid with different alloys on bimetal and base metal, and the valve seat is also overlaid with corresponding alloy. After special treatment, the sealing surface group is composed of various types such as anti-corrosion, wear resistance, high strength, etc., to meet the needs of different occasions; the third feature is that the sealing is tight, and the transportation of harmful gases can reach the standard No leakage; the fourth feature is that the valve core of the sealing pair has compensation. When the valve seat is worn, it can still be reliably sealed and the service life can be prolonged by turning a little when it is closed. In addition, the compression nut can still be used after being screwed off, adjusted or replaced by the user, which avoids the defects of many existing valve seal failure and whole set scrapping. Therefore, the selection of surfacing different alloy bimetallic seal pairs can be used in different industrial fields that require strict sealing, such as wear resistance, corrosion resistance, high temperature resistance, etc.