Principle of balancing valve
The principle of the balance valve is the counter-regulation in the valve body. When the pressure at the inlet is increased, the diameter is automatically reduced, and the flow rate is reduced, and vice versa. If the connection is reversed, the adjustment system does not work. The purpose is to regulate the predetermined flow rate of each distribution point in the system (such as each building). Balance valve is installed at the entrance of each building to make the total flow of the heating system be properly distributed. Similar to the silent check valve .
Moreover, the regulating valve plate is directional, and the reverse pressure can even reduce or even close the flow. Since the balancing valve is installed for better heating, there is no problem of reverse mounting. The human error will of course be corrected. Is the balancing valve and the flow balancing valve the same thing? What is the static balancing valve and the dynamic balancing valve? The flow balancing valve is installed on the air conditioning water supply pipe or the return pipe. The valve acts as a pressure balance or adjustment by spilling excess pressure.
The flow valve is to change the flow of liquid or gas. The flow valve is installed in the supply system and the gas is installed in the loop system. The purpose of using the balance valve is to enable the heat user to be within a certain range. The heat supply needs to adjust the flow rate. The heating system using the balance valve is a variable flow system. However, most of the heating pipe networks are currently determined according to the basic needs of heating, and the pipe network system is actually difficult to achieve unlimited heating on demand. It is bound to cause hydraulic imbalance in the pipe network system, especially in the heating system where only the balancing valve is installed and the heat meter is not installed. The hydraulic imbalance is particularly serious. The self-operated flow balancing valve is installed at each inlet, which is expensive. Therefore, it is less used. Another way is to set up a self-operated flow balance valve on the branch line. At present, most of the entrances use locked flow balance valves, which requires manual operation in the initial stage of pipe network operation. Initial adjustment work, this work is time-consuming, laborious, more complicated, difficult to adapt to changes in the heating network conditions. But this is an economical measure to ensure the hydraulic balance of the heating pipe network. From: http://
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