Fluorine-butterfly butterfly pneumatic valve using the problems existing in the 2)

lining adjustment problems of pneumatic valve in use?
in the first place, soft, hard fold type sealing ring fixed on the pneumatic valve plate, when the pneumatic valve plate normally open state media form, before the sealing surface erosion of sandwich with soft seal directly affect the sealing performance of coating metal plate.
second, the structure of the structural constraints do not comply with the following DN pneumatic valve diameter, thick because of CD, the overall structure of the flow resistance is big.
third, due to the principle of rubber lining butterfly pneumatic valve, pneumatic pneumatic seat sealing surface of valve plate and seal on the torque transmission between the pneumatic valve board seats. The lining is flow state, pneumatic valve, pneumatic valve, pneumatic valve, exhaust medium pressure, the higher the squeezed tight seal. With medium pressure pneumatic valve plate and seat unit pressure shelter-forest flow ratio between the medium pressure, sealing began to leak.
4, high-performance lining butterfly pneumatic valve, whose character is: the soft t-shaped sealing ring ring pneumatic seat description of multi-layer stainless steel piece on both sides.
pneumatic valve plate and for the oblique cone structure, pneumatic valve seat sealing surface, in the pneumatic valve plate oblique cone surface welding heat resistance, corrosion resistant alloy material; Between the ring plate and the adjusting screw fixed leaf spring assembly structure adjustment. This structure effectively compensation between the collar and pneumatic valve stem in the central and elastic deformation under pressure, to solve the sealing problems in communication in the process of the transmission medium of two ventilation valve tolerance.
in both by the T - Soft stainless steel plate of polycyclic, with metal sealing and soft sealing both low and high temperature under the condition of double advantage, both sides with zero leakage sealing performance. Trials show that pool is flow state ( The medium flow direction at the same rotating direction) , the sealing surface pressure is medium pressure and torque transmission effect of pneumatic valve plate. Positive media pressure pneumatic valve plate oblique cone surface and pneumatic valve seat sealing surface squeezed tight, sealing the better the results.
when counter state, pneumatic valve plate and seat between the drive torque of pneumatic valve plate to the pneumatic seat tightness. With reverse medium pressure, pneumatic valve plate and seat, the unit is less than the pressure of medium pressure between the colloid filter adjustable ring emulsifier can under the load of deformation in pneumatic valve plate and tight pressure compensation pneumatic valve seat sealing surface storage less automatic compensation effect in the spring.
so the utility model is not like the existing technology, in the pneumatic valve plate installed on the hard and soft multi-layer sealing ring, but is installed directly on the body, in the middle of the clamp and pneumatic seat add adjustable ring is a two-way sealed very good method. Keywords:

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