Pneumatic triple-eccentric butterfly valve
It is composed of a piston-type pneumatic actuator and a triple-eccentric metal seal valve body. Its structure is designed using the three-dimensional centering principle. The valve seat adopts a multi-layered structure compatible with hard and soft seals. It is processed with exquisite technology and advanced technology. Pneumatic triple eccentric butterfly valve can be equipped with a pneumatic valve positioner to input a control signal (-D or -D) air source to control the operation. It can also be equipped with a stroke limit switch, a solenoid valve, a triplex and an air source. It can realize switch operation and send two pairs of passive contact signals to indicate the switch of the valve. Pneumatic triple eccentric butterfly valve is composed of valve body, butterfly plate, multi-layer valve seat, valve stem, transmission mechanism and other main components. It is a long-life, energy-saving butterfly valve. Pneumatic triple eccentric butterfly valve is widely used in pipelines with corrosive media such as metallurgy, electric power, petroleum, chemical industry, air, gas, combustible gas, water supply and drainage. Main features of pneumatic triple eccentric butterfly valve
This valve adopts a triple eccentric sealing structure with minimal wear on the valve seat and butterfly plate.
The sealing ring is made of stainless steel and has the dual advantages of metal hard seal and elastic seal. It has excellent sealing performance at both low and high temperatures and has the characteristics of corrosion resistance and long service life.
The sealing surface of the butterfly plate is made of surfacing cobalt-based carbide sealing surface, which is wear-resistant and has a long service life.
The large-diameter butterfly plate adopts a quilted frame structure with high strength, large flow area and small flow resistance.
, Pneumatic triple eccentric butterfly valve
It has a two-way sealing function and is not restricted by the flow direction of the medium or affected by the spatial position when installed. It can be installed in any direction.
The driving device can be installed in multiple stations (rotating or) for the convenience of users.
Main technical parameters of pneumatic triple eccentric butterfly valve
Valve body
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%> Straight-through cast butterfly valve
%> Nominal diameter
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%> Flange type, wafer type
%> Valve cover form
%> One-piece type
%> Gland type
%> Gland Pressure type
%> sealing packing
%> type polytetrafluoroethylene packing, flexible graphite packing
Note: For detailed actuator parameters, please enter the pneumatic actuator page. Check.
Main dimensions of pneumatic triple eccentric butterfly valve
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Qigao pneumatic triple eccentric butterfly valve