Static balance valve is a mechanical device used in hydraulic systems to achieve precise flow regulation and stability. Its core function is to manually preset the valve opening to allocate or limit the flow of specific branches with fixed resistance characteristics, thereby overcoming the natural imbalance problem caused by uneven pipeline resistance in the system. Static balance valves typically consist of a valve body, valve core, measuring port, and adjusting handle (or screw). During the initial debugging of the system, technicians use specialized instruments to measure the pressure difference before and after the valve, and convert it into a flow value through calculations or charts. By manually rotating the adjustment mechanism, the valve can be set and locked in the desired opening position, providing a constant resistance for the branch. Once set, the valve opening remains unchanged during system operation unless re debugged. Kaiweixi Valve mainly produces static flow balance valves, static pressure balance valves, static internal thread balance valves, stainless steel static balance valves, brass static balance valves, digital locking static balance valves, etc. Static balance valves are mainly used in fixed flow systems or as benchmark flow setting devices for key nodes such as thermal inlets and main lines.

A dynamic balance valve is an intelligent regulating valve that can automatically adapt to changes in system pressure and maintain a constant set flow rate. Its core function is dynamic hydraulic balance, which means that when the system pressure fluctuates, it does not require external power and relies on the mechanical structure inside the valve (such as springs, diaphragms, piston components) to adjust the opening in real time, stabilizing the flow rate of the controlled branch at the design value. This valve usually has a built-in differential pressure regulator. Its working principle is: within the range of working pressure difference, when the system pressure changes and the pressure difference before and after the valve increases or decreases, the sensing mechanism (such as diaphragm) inside the valve drives the valve core to move in the opposite direction, automatically increasing or decreasing the flow resistance, thereby offsetting the flow rate change caused by the pressure difference change, and ultimately achieving a constant flow rate. Kaiweixi Valve Group mainly produces dynamic flow balance valves, dynamic pressure balance valves, dynamic temperature balance valves, electric balance valves, electric dynamic balance valves, and other dynamic balance valves. These dynamic balance valves solve the limitation of static balance valves failing when the system changes working conditions, and are key components for modern HVAC systems to achieve precise on-demand energy supply and improve energy efficiency.

Self operated balancing valve is the most common and representative form of dynamic balancing valve, and its name directly reveals its core feature: relying on the pressure changes of the system's own medium as a power source to achieve automatic and constant flow. It is a fully automatic mechanical flow control device that does not require external power or pneumatic drive. Valves usually integrate differential pressure sensing diaphragms (or pistons), springs, and regulating valve cores. During system operation, when the pressure difference between the front and rear of the valve changes, the force sensed by the diaphragm will be compared with the set force of the spring, thereby driving the valve core to automatically adjust the opening: it will be closed when the pressure difference increases, and opened when the pressure difference decreases. This process continues dynamically and ultimately stabilizes the actual flow through the valve around the preset value. Kaiweixi Valve Group mainly produces self operated differential pressure balance valves, self operated flow balance valves, self operated temperature balance valves, and self operated balance valves with locks. Self operated balance valves are mainly used in variable flow systems for heating or air conditioning, and are installed at the inlet of end devices such as fan coil units and heat exchangers. Its core advantage lies in eliminating complex debugging, effectively solving the problem of system dynamic imbalance, ensuring efficient operation of each end at the designed flow rate, avoiding overheating or underheating, and being a key automation component for achieving system hydraulic balance, reducing energy consumption, and improving comfort.