Supply Wafer Soft Seal Butterfly Valve

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Supply Wafer Soft Seal Butterfly Valve

Information Name:	Supply Wafer Soft Seal Butterfly Valve
Published:	2011-07-26
Validity:	30000
Specifications:	D71X
Quantity:	1.00
Price Description:
Detailed Product Description：	D71X is a clip soft seal butterfly valve model code, the butterfly valve disc mounted on the pipe diameter direction. Cylindrical channel in the valve body, disc-shaped disc around the axis of rotation, rotation angle 0 ° ~ 90 ° between the rotation to 90 °, the valve is fully open state license. New high-life stainless steel butterfly valve characteristics and problems in the course of supply of the soft sealing butterfly clip At present, the soft seal butterfly valve as a piping system used to achieve off and flow control components, has been in the petroleum, chemical industry, metallurgy, water, electricity and many other fields has been very widely used. Already known in the butterfly valve technology, sealing in the form of its multi-sealed structure, the sealing material is rubber, PTFE and so on. As the structural features of the restrictions is not suitable for high temperature, high pressure and corrosion resistance, abrasion resistance and other industries. Present a more advanced triple eccentric butterfly valve is metal seal butterfly valve, valve body and seat components for the piece, the valve seat sealing surface layer welding temperature, corrosion resistant alloy material. Stacked multi-layer soft ring fixed in the valve plate, this butterfly valve compared with the conventional high temperature, easy operation, open and close without friction, closed with the transmission of torque to compensate for increased seal and improve the a valve sealing performance and durability advantages. Supply Wafer Soft Seal Butterfly Valve A, D71X wafer soft seat butterfly valve is still in the course of the following questions: First, as hard and soft layers stacked ring fixed in the valve plate when the valve plate to its normally open state media to form a positive sealing surface erosion, dissection of the soft metal tape by erosion, the direct impact on the sealing performance. Supply Wafer Soft Seal Butterfly Valve Second, by the structural constraints of the structure do not meet the following diameter DN200 valve, because the overall structure of the valve plate thick, large flow resistance. Third, because the principle of three eccentric structure, the valve seat plate sealing surface and the seal between the transmission of torque by the pressure plate to the valve seat. Positive flow state, the higher the pressure medium sealed tight squeeze. When the flow upstream when the media with the media pressure increases between the valve plate and seat unit is less than the pressure medium pressure, the seal started to leak. Supply Wafer Soft Seal Butterfly Valve High-performance soft seal butterfly valve, Characterized in that: as described in T-shaped valve seat ring seal ring from soft stainless steel sheet on both sides of multi-layer composition. Supply Wafer Soft Seal Butterfly Valve Valve plate and valve seat sealing surface for the oblique cone structure, oblique cone surface in the valve plate welding temperature, corrosion resistant alloy material; ring fixed in the regulation of the spring between the plate and the plate assembly on the adjustment bolt together structure. This structure effectively compensate for the tolerance between the sleeve and the valve stem in the medium band and the elastic deformation under pressure to solve the two-way valve in the exchange of media delivery exist in the process of sealing problems. Supply Wafer Soft Seal Butterfly Valve The use of soft stainless steel T-piece multi-layer composition of both sides of the ring, with a hard metal sealing and soft sealing the dual advantages of both low and high temperature, all have zero leakage sealing performance. Test proved positive flow pool status (flow direction and disc rotation in the same direction), the sealing surface pressure is the transmission of torque and pressure on the media's role in the valve plate produced. Positive media pressure plate when the valve seat sealing surface and the oblique cone surface squeezed more tightly, sealing the better. Supply Wafer Soft Seal Butterfly Valve When the upstream state, the valve plate and seat the seal between the torque by the drive pressure to seat the valve plate. With the reverse media pressure, the valve plate and valve seat between the units is less than the pressure medium pressure, the adjustment ring spring under load deformation energy stored in the compensation valve plate and valve seat sealing surface of the tight pressure to play the role of automatic compensation. Therefore, unlike the utility model as the existing technology, software and hardware installed in the valve plate multi-ring, but directly installed on the valve body, the middle seat in the plate and adjust the additional bi-directional ring is a very good way to seal . It can replace the valve, and the supply of ball valves soft-sealed butterfly clip B, D71X wafer soft seat butterfly valve performance of several classification 1, according to the classification structure (1) Center Seal butterfly valve (2) a single eccentric valve seal coal (3) double eccentric butterfly valve seal (4) three eccentric valve seal stamp 2, according to the sealing surface material classification (1) soft sealing butterfly valve. 1) soft non-metallic sealing materials by the soft non-metallic material. 2) sealing the rigid metal soft material on the non-metallic material. (2) metal seal butterfly valve. Sealing materials from metal to metal hard rigid material. 3, classified according to the form enclosed (1) mandatory sealing butterfly valve 1) elastic sealing butterfly valve. Sealing pressure valve is closed by the valve plate extrusion seat, seat or have the flexibility of the valve plate 2) plus the torque seal butterfly valve. Sealing pressure valve shaft by the torque applied to produce (2) filling pressure seal valve. Sealing pressure from the valve seat or valve plate sealing pressurized bomb parts have (3) self-sealing valve. Sealing pressure than the pressure generated automatically by the media. 4, classified according to the working pressure (1) vacuum valve. Working pressure lower than the standard heap atmosphere calendar butterfly. (2) low-pressure valve. Nominal pressure PN <1.6MPa butterfly. (3) medium-pressure valve. Nominal pressure PN is 2.5 - 6.4MPa butterfly. (4) high-pressure disc valve. Nominal pressure PN is 10. 0 - 80.0MPa the butterfly. (5) high pressure valve. Nominal pressure PN> 100MPa the butterfly. 5, according to the temperature classification (1) high temperature valve. t> 450 C of the butterfly (2) temperature disc valve. 120 C

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