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A brief description of the functions, advantages and classification of electric flow valves

A brief description of the functions, advantages and classification of electric flow valves

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  • Time of issue:2021-05-20
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(Summary description)Electric flow valves are suitable for water systems that require flow control, especially for non-corrosive liquid media such as heating and air conditioning. Installed in a water system, the system flow can be automatically and continuously maintained at the desired setpoint after a single adjustment prior to operation. The electric flow valve can automatically eliminate the hydraulic imbalance caused by various factors in the water system, maintain the flow required by the user, overcome the "uneven heating and cooling", improve the room temperature of heating and air conditioning, and improve the energy efficiency of the system to achieve energy saving. Realize "electric flow control valve charging", it is an ideal supporting product for heating and air conditioning system.

A brief description of the functions, advantages and classification of electric flow valves

(Summary description)Electric flow valves are suitable for water systems that require flow control, especially for non-corrosive liquid media such as heating and air conditioning. Installed in a water system, the system flow can be automatically and continuously maintained at the desired setpoint after a single adjustment prior to operation. The electric flow valve can automatically eliminate the hydraulic imbalance caused by various factors in the water system, maintain the flow required by the user, overcome the "uneven heating and cooling", improve the room temperature of heating and air conditioning, and improve the energy efficiency of the system to achieve energy saving. Realize "electric flow control valve charging", it is an ideal supporting product for heating and air conditioning system.

  • Categories:Company News
  • Author:
  • Origin:
  • Time of issue:2021-05-20
  • Views:
Information

Electric flow valves are suitable for water systems that require flow control, especially for non-corrosive liquid media such as heating and air conditioning. Installed in a water system, the system flow can be automatically and continuously maintained at the desired setpoint after a single adjustment prior to operation. The electric flow valve can automatically eliminate the hydraulic imbalance caused by various factors in the water system, maintain the flow required by the user, overcome the "uneven heating and cooling", improve the room temperature of heating and air conditioning, and improve the energy efficiency of the system to achieve energy saving. Realize "electric flow control valve charging", it is an ideal supporting product for heating and air conditioning system.

 

A brief description of the functions, advantages and classification of electric flow valves

 

Electric flow valve function: The function of the electric flow valve is to keep the flow constant when the pressure difference between the inlet and outlet of the valve changes, so as to keep the flow of the controlled object in series constant. Using a flow valve in the pipe network can directly set the flow according to the design. Under the action of water pressure, the valve can automatically eliminate the flow deviation caused by pressure fluctuations and the residual pressure head of the pipeline. There are many names of flow valves, such as self-operated flow constant flow valve, balance valve, dynamic balance valve, etc. The various types of flow valves work in a similar way, although their structures are different.

Electric flow valve classification: Electric flow valve is divided into two types: constant flow valve and lateral flow control valve. The lateral flow regulating valve and constant flow valve are variable resistance devices, which automatically change the resistance coefficient according to the change of the system operating conditions, and use the pressure difference of the fluid as the driving force to keep the flow valve and the lateral flow constant. Balanced delivery and distribution of the entire system flow, thereby eliminating the phenomenon of uneven heating and cooling. When the total flow is sufficient, the system is relatively stable, and the flow changes of each branch will not affect each other.

The difference between the constant flow valve and the constant flow electric flow valve: 1. The constant flow valve has only one disc, which can directly feel the pressure difference between the front and rear of the valve, and perform the action of changing the valve resistance, which can become a "direct-acting rheostat valve" , the flow cannot be adjusted online, and the energy-saving operation of changing the total flow with the constant flow valve cannot be realized; 2. The constant flow electric flow valve is the action of the variable resistance in the compensation mode. It has two discs, one is the control disc, It is used to compensate the pressure difference before and after the orifice, so it can be called "compensating varistor control valve". The principle is: use the pressure difference before and after the orifice as the driving force for compensation, compensate and maintain the stability of the pressure difference before and after the orifice, so as to keep the flow constant, and adjust the size of the orifice to obtain different flow rates. It also keeps the flow constant when the hydraulic conditions of the system change. In the system, not only can the flow of each branch be kept constant to achieve balanced transmission and distribution of flow, but also the flow of each branch can be changed and adjusted at any time to achieve dynamic balance. The adjustment of the constant flow electric flow valve is simple and convenient, but for larger systems, it is still a burden to adjust it twice a year, and the constant flow electric flow valve is expensive, which still has great economic pressure on ordinary users.

 

 

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