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进口气动薄膜调节阀美国阿卡迪亚品牌

进口气动薄膜调节阀Product description:

The valve body comprises a valve body, a valve core, a valve stem and a valve cover. The valve body comprises a lower chamber and an upper chamber. The valve cover is arranged on the valve body. The valve stem moves through the valve cover and is fixedly connected with the valve core in the same axis. The flow part of the upper chamber and the lower chamber of the valve body is provided with a pressure reducing element. The connection part between the valve body and the pressure reducing element is provided with a valve seat. The valve core and the valve seat are sealed with conical surfaces The setting of medium pressure reducing parts helps to reduce the strong scouring of the valve core and valve seat of the control valve by the medium under small flow conditions, so as to effectively control the pressure reduction of small flow and extend the service life.

进口气动薄膜调节阀characteristic:

The pneumatic membrane regulating valve is a regulating device in the combination instrument of the pneumatic unit, and is one of the important devices in the automatic regulating system of the production process. It receives the output signal of the regulating instrument to close and open the valve, so as to achieve the automatic regulation of parameters such as pressure, temperature, flow and liquid level. It can be widely used in the automatic regulation and remote control of chemical, petroleum, metallurgy, electric power, and light textile industries. However, the pneumatic membrane control valve at this stage is difficult to be used for the pressure reduction control of small flow, mainly because the medium pressure flowing through the valve body is too large, and the closure surface of the valve core and valve seat is scoured, leading to the increase of the closure area, which makes it impossible to regulate and control the small flow

进口气动薄膜调节阀Principle:

The valve core is cylindrical, with an inclined cone adjusting surface and a buffer zone. The greater the pressure signal received by the regulating valve, the greater the relative displacement between the sealing surface of the valve core and the sealing surface of the valve seat, that is, the larger the intercepting area between the inclined cone regulating surface of the valve core and the valve seat flow passage; On the contrary, the smaller the pressure signal is, the smaller the relative displacement between the sealing surface of the valve core and the sealing surface of the valve seat is, that is, the smaller the intercepting area between the inclined cone adjusting surface of the valve core and the valve seat flow passage is; A certain pressure signal corresponds to a certain valve opening, thereby realizing the precise control of the regulating valve on the small flow.

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