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1. Structure and Performance
The innovative self-operated flow control valve is ingeniously designed to maintain a seamless and constant flow through the valve even amidst fluctuations in the pressure difference between the inlet and outlet of the valve, ensuring a steady flow of the controlled medium (such as a loop, user, or device) connected in series with it. The self-operated flow control valve is also known by several other names, including self-operated flow balance valve, fixed flow valve, self-balancing valve, and dynamic flow balance valve These versatile self-operated flow control valves boast a variety of structures, yet their core operating principles remain consistently reliable.
2. Structure and Working Principle
In terms of structure, the self-operated flow control valve sare ingeniously crafted with a dual valve system, comprising a manual regulating valve assembly and an automatic balancing valve assembly, as illustrated in Figure 1. The manual regulating valve assembly is tasked with setting the desired flow rate, while the automatic balancing valve assembly ensures the flow rate remains constant.
The self-operated flow control valve incorporates a manual control valve assembly, where flow G = P2-P3 type; Kv is the flow coefficient of the manual control valve port, and P2-P3 denotes the pressure difference across the manual control valve port. With Kv constant due to fixed opening, the flow G remains unchanged as long as P2-P3 is stable. The automatic balancing valve assembly governs the constancy of P2-P3. For instance, if the pressure difference between inlet and outlet P1-P3 rises, the automatic balancing valve assembly adjusts by closing slightly, increasing P1-P2 to keep P2-P3 constant. Conversely, if P1-P3 decreases, the automatic balancing valve assembly opens wider, reducing P1-P2 while maintaining the constancy of P2-P3.
Each manual control valve This group correlates specifically to a precise flow rate, with the relationship between the valve's opening and the flow rate meticulously calibrated through our state-of-the-art test bench trials. Additionally, it features a sophisticated opening display and a secure locking device for enhanced operational ease.
3. Performance and Features
1. The flow rate can be finely adjusted to align with either design specifications or actual system requirements. This capability automatically mitigates pressure differential fluctuations within the system, ensuring a consistently stable flow.
2. It adeptly addresses and resolves the inconsistencies of cold and heat distribution within the system, thereby significantly enhancing the quality of both heating and cooling efficiency.
3. This innovative solution effectively eradicates the common issue of disproportionate pressure differences, typically characterized by a high-pressure differential at the system's near end and a minimal pressure differential at the far end.
4. By optimizing the system's circulation water, it substantially decreases the system's resistance, leading to operational efficiency.
5. It minimizes the design workload by eliminating the need for exhaustive hydraulic balance calculations of the pipe network, offering a streamlined process.
6. Simplifies the intricate process of network adjustment by transforming it into a straightforward flow distribution task, thereby reducing complexity.
7. Effortlessly eliminates the need for flow redistribution tasks whenever the heat source of a multi-source pipe network is switched, ensuring seamless operation.
8. Flow display values are meticulously calibrated on our test bench, providing precise measurements in flow rates (m3/h).
4. Technical Parameters
1. Medium temperature range is from 0-150ºC, with working pressure differences from 20-600Kpa. Selection can be made based on the pipeline's equal diameter.
2. Selections can also be tailored according to the maximum flow rate and the valve's flow range, ensuring optimal compatibility. valve.
5. Installation and Commissioning
1. Ensure the flow direction of the medium aligns perfectly with the designated flow direction indicated by the valve body arrow; this is crucial for optimal performance.
2. After installation, adjust the flow rate meticulously according to your specific series pipeline requirements;
3. Diligently verify whether the pressure differential across both ends of the valve remains within the designated working pressure differential range;
4. Aim to minimize operation of the valve in its minimum flow state to prevent undue stress on the system;
5. Since there is no blowdown screw on the spring cover, ensure regular blowdown maintenance to maintain efficiency.
6. Adhere strictly to the established guidelines outlined in the standard
CJ 179-2003 "Self-operated Flow Control Valve" for assurance of compliance and safety.
Huhang Technology Group Co., Ltd. stands as a beacon of innovation and excellence in the multi-specialty supply sector, proudly boasting an impressive legacy spanning over two decades. Nestled in the vibrant region of Fujian, China, our headquarters is the nerve center of a network that includes 5 state-of-the-art manufacturing facilities strategically positioned across the nation: one in Shandong, one in the bustling metropolis of Shanghai, and three within Fujian itself. With a pronounced focus on the export of top-tier water and drainage valves, premium brass HVAC valves, and cutting-edge firefighting solutions such as fire hydrants and extinguishers, we consistently deliver unparalleled quality. Our unwavering dedication to excellence is further exemplified by our exceptional after-sales service, ensuring that we not only meet but exceed the expectations of our discerning clientele, positioning us as leaders in the industry.
Supply Ability: A remarkable 50,000 Meters per Day, ensuring we meet your demands seamlessly!
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