**Abstract:**
Using an automatic pressure differential valve in combination with an electric control valve is an effective solution for achieving balance in an air conditioning water system. When the system pressure fluctuates, the constant pressure differential valve automatically adjusts its flow area to maintain a consistent pressure difference across the electric control valve. This ensures that the CV value of the control valve remains stable, allowing it to operate under optimal conditions. As a result, the actual water flow entering the air conditioning unit is always the required amount at any given time, regardless of pressure changes. This setup enhances system performance and simplifies maintenance. The integration of an automatic pressure differential valve and an electric control valve creates a more efficient and reliable hydraulic balance solution. It eliminates the need for extensive use of balancing valves in stratified control systems, leading to better overall performance and easier maintenance. In a variable flow air conditioning system, this combination plays a crucial role in maintaining hydraulic balance. The use of an automatic proportional integral valve offers numerous benefits, including reduced commissioning time, lower installation costs, improved system stability, and energy efficiency. Additionally, the system remains dynamically balanced, which helps optimize the operation of chillers and pumps, reducing long-term operational costs. The automatic flow balance also minimizes the risk of human error during installation or maintenance, ensuring consistent performance over time.
**Performance Overview of Automatic Pressure Differential Valve + Electric Control Valve**
This combination is widely recognized as an excellent method for achieving hydraulic balance in air conditioning water systems. When the system pressure varies, the constant pressure differential valve adjusts its internal flow area to keep the pressure difference across the electric control valve constant. This ensures that the CV value of the control valve remains unchanged, allowing it to function optimally. As a result, the water flow into the air conditioning unit is always accurate and corresponds to the actual demand, independent of pressure fluctuations. This setup not only improves system efficiency but also makes maintenance simpler and more reliable. By eliminating the need for multiple balancing valves in stratified control systems, the system becomes more robust and easier to manage. The automatic pressure differential valve and electric control valve are key components in a variable flow air conditioning system, ensuring continuous hydraulic balance. Using an automatic proportional integral valve brings additional advantages such as faster commissioning, reduced material and labor costs, and greater flexibility during system modifications. Moreover, the system remains balanced regardless of installation stages or equipment changes, and even after project completion, adjustments in one area won’t disrupt the balance elsewhere. With dynamic equilibrium throughout the system, chillers and pumps can operate at maximum efficiency, significantly lowering energy consumption and maintenance expenses. The automatic nature of the flow balance also reduces the chances of manual errors, making the system more dependable and user-friendly.
**Comparison Between Automatic Proportional Integral Control Valve and Static Balance Valve**
A static balance valve is essentially a manually adjusted valve designed to regulate flow by altering local resistance. It attempts to achieve partial hydraulic balance based on pre-set values. During system commissioning, all valves are initially set to certain positions, and technicians adjust each static balance valve according to a mathematical model. However, since each system has a unique resistance distribution that cannot be precisely measured, static balance valves can only provide approximate and qualitative flow control. In a variable flow system, where water demand and pressure fluctuate unpredictably, static balance valves struggle to maintain consistent flow. Their fixed opening means that changes in pressure will directly affect the flow rate, leading to imbalances. As a result, the system may experience overflows or underflows, compromising efficiency and comfort. Unlike static valves, the automatic proportional integral control valve continuously adjusts to maintain balance, offering a more accurate and responsive solution for modern HVAC systems.
ShenZhen Jakeconn Precision Technology Co., Ltd. , https://www.jakeconn.com