High temperature ball valves is characterized by the fact that the valve seat sealing ring is composed of a plurality of stainless steel sheets on both sides of a flexible T-shaped sealing ring.
The valve plate of the High temperature ball valves
and the sealing surface of the valve seat are oblique conical structure, and temperature
and corrosion-resistance alloy material is welded on the inclined cone surface
of the valve plate. The spring fixed between regulating ring pressure plates is
assembled together with the adaptable bolt on the pressure plate. This
structure efficiently compensates for the tolerance zone between the sleeves
plus the valve body as well as the elastic deformation of the valve stem under
the pressure of the medium, which solves the sealing dilemma of the valve in
the procedure of two-way identical medium transportation.
High temperature ball valves use soft T-shaped
multi-layer stainless steel sheets to form sealing rings. It has the dual
benefit of metal hard sealing as well as soft sealing. Whether in low
temperature or high temperature situations, it has the sealing performance of
zero leakage. Experiments propose that in hopeful flow state (the flow
direction of the medium is the similar as the direction of rotation of the
butterfly plate), the pressure of the sealing surface is caused by the torque
of the transmission as well as the result of the medium pressure on the valve
plate. When the optimistic medium pressure increases, the tighter the squeeze
between the valve plate oblique cone surface and the valve seat sealing surface,
the better the sealing effect!
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