Side Mounted Two-way Sealing Eccentric Hemispherical Valve

Product overview

PQ Side-mounted bidirectional sealing eccentric hemisphere valve is developed on the basis of absorbing and digesting (Maxiflub-stellventile) produced by CANALI Company of Germany. Its structure adopts eccentric tightening principle to achieve the purpose of gate tightening, regul-ation and closure through transmission mechanism. The sealing pair is a seal with hard contact of metal face ring, and the valve core of double eccentric structure is located in storage when opening. In the ballroom, the flow section is large, and the valve is not washed, the spool is not washed when closed, and the spherical surface of the spool is asymptotic along the valve seat when opened, which effectively removes the scaling obstacle and realizes reliable sealing. The first feature is that it is especially effective for mixed flow transportation of two-phase mixed flow and easy scaling solids precipitation; The second feature is that the hemisphere of the valve is bimetal, the base metal is surfaced with different alloys, and the valve seat is also surfaced with special treatment. The sealing surface is combined into various types such as anticorrosive, wear-resistant and high strength to meet the needs of different occasions; The third feature is tightly sealed, which can convey harmful gases. Zero leakage; The fourth feature is that the spool of the sealing pair retains compensation. When the seat wears out (hardness of the seat is lower than the spool), it rotates a little when it closes, which can still seal reliably and prolong its service life. In addition, the user will screw off the tightening nut, adjust or replace the seat can still be used, to avoid the existing valve seal failure of the whole scrap malpractice. Therefore, the selection of different alloy (or combination ball) bimetallic seals for surfacing can be used in different industrial fields such as wear resistance,corrosion resistance, high temperature resistance and strict sealing.