Decoupling Chamber Size Requirements
The decoupling tank, commonly known as the mixed water tank, refers to the situation in hydronic heating systems where due to hydraulic coupling among different circuits, any change in flow rate within a branch or user will affect the flow rates of other branches or users, as well as the boiler's flow rate, thereby disrupting the hydraulic balance of each circulation loop.

1. The structural dimensions of the decoupling tank are required to achieve decoupling between the hydraulic systems. It is crucial to ensure that the fluid's longitudinal flow velocity within the decoupling tank is 1/10 of the system's flow velocity, and it is recommended not to exceed 0.1 m/s under any circumstances. Typically, the flow velocity in the connecting pipes of the decoupling tank ranges from 0.7 to 0.9 m/s. If the diameter of the decoupling tank is three times the connecting diameter, the average flow velocity within the tank will not exceed 0.1 m/s, and the dimensions can also be determined through calculation. 2. Installation of the Decoupling Tank: The installation of the decoupling tank should pay attention to two points: first, it should be installed vertically; secondly, when connecting to the system, the hot pipes (such as water supply pipes) should be connected to the top, while the cold pipes (such as return pipes) should be connected to the bottom. An automatic vent valve is installed at the top of the decoupling tank, and a drain valve at the bottom. The decoupling tank and the system should be insulated together.