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Pneumatic flow valve related content introduction

Pneumatic flow valve related content introduction

(Summary description)The pneumatic flow valve utilizes the change in the pressure difference between the inlet and outlet caused by the change of the fluid volume, and adjusts the orifice area between the valve core and the valve body and the local resistance it generates for feedback adjustment, and automatically eliminates the remaining pressure head and pressure of the pipeline. deviations caused by fluctuations.

Pneumatic flow valve related content introduction

(Summary description)The pneumatic flow valve utilizes the change in the pressure difference between the inlet and outlet caused by the change of the fluid volume, and adjusts the orifice area between the valve core and the valve body and the local resistance it generates for feedback adjustment, and automatically eliminates the remaining pressure head and pressure of the pipeline. deviations caused by fluctuations.

Information

The pneumatic flow valve utilizes the change in the pressure difference between the inlet and outlet caused by the change of the fluid volume, and adjusts the orifice area between the valve core and the valve body and the local resistance it generates for feedback adjustment, and automatically eliminates the remaining pressure head and pressure of the pipeline. deviations caused by fluctuations. This kind of valve can dynamically keep the amount of fluid passing through it constant, and is especially suitable for the control of non-corrosive liquid media such as heating and air conditioning.

Pneumatic flow valve related content introduction

 

  

The pneumatic flow valve can be set according to the requirements. During operation, the valve can eliminate the residual pressure head of the pipeline and the fluctuation caused by the pressure fluctuation, maintain the medium measurement required by the user, overcome the feeling of "uneven heat and cold", and improve the heating, The energy efficiency of the air-conditioning system is an ideal supporting product for the heating and air-conditioning pipe network to achieve "metering and charging".

There is a manual regulating valve group and an automatic balancing valve group inside the pneumatic flow valve. The setting of the fluid volume is realized by the regulating valve group, and the constant operation is completed by the automatic balancing valve group. Before the pipe network is put into operation, a joint adjustment is carried out for each valve as required, so as to keep the system metering automatically constant at the required set value.

The working principle is to use the pressure difference generated before and after the liquid flows through the orifice to drive the action mechanism to maintain the stability of the pressure difference before and after the orifice, and then maintain a constant heat/cooling capacity. Simply change the size of the orifice if needed. Therefore, it is mostly used to maintain the balance of each branch in the system to realize the balanced transmission and distribution of heat or cooling capacity.

According to the different needs during the early cold and severe cold periods, the energy-saving operation mode of "change the metering adjustment in stages" can be realized by changing and adjusting the valves of each branch to improve the user experience.

After the product arrives, it should be stored in a dry place to avoid wind and rain. Do not install it backwards during installation. You can refer to the water flow direction shown by the arrow on the valve body. There is no restriction on the installation direction of the pipe, and it can be installed vertically or horizontally. Changing the preset value is also very simple, just open the protection screw, and then use a special wrench to rotate the valve stem to the set value, and the adjustment process can refer to the scale line. The design should pay attention to another shut-off valve if the shut-off function is required.

The maximum allowable operating temperature of the pneumatic flow valve is 120°C and the pressure is 1.6Mpa. Once the preset is completed, the pressure fluctuation in the pipeline can be automatically eliminated, the contradiction between the large pressure difference at the near end and the small pressure difference at the far end can be completely solved, the fluid volume can be maintained constant, the uneven cooling and heating of the system can be overcome, and the Heating (cooling) quality. It can also reduce the required amount of circulating water and reduce resistance. It reduces the design workload of the pipe network, eliminates the tedious hydraulic balance calculation, and simplifies the complex network adjustment work into a simple dynamic allocation. Eliminate the metering redistribution work when the heat source of the multi-heat source pipe network is switched.

  

 

 

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