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1. Structure and Performance
The role of our innovative self-operated flow control valve is to effortlessly maintain a seamless and constant flow through the valve despite any fluctuations in the pressure difference between the inlet and outlet of the valve. This assures a steady flow to the controlled entity (such as a loop, user, or device) that is connected in series. The self-operated flow control valve is known by various other names, including self-operated flow balance valve, fixed flow valve, self-balancing valve, and dynamic flow balance valve Diverse forms of self-operated flow control valves boast distinct structural designs, yet their operating principles remain largely consistent.
2. Structure and Working Principle Structurally
The self-operated flow control valve structure constitutes a dual valve arrangement, which integrates a manual regulating valve assembly alongside an automatic balancing valve assembly, as depicted in Figure 1. The manual regulating valve assembly's role is to preset the desired flow rate, while the automatic balancing valve assembly ensures that this flow rate remains constant.
The self-operated flow control valve features in the manual control valve assembly, where the flow G=P2-P3 type, with Kv representing the flow coefficient of the manual control valve port, and P2-P3 symbolizing the pressure differential across the manual control valve port. Kv's size is contingent on the opening; once the opening is fixed, Kv remains constant. Thus, as long as P2-P3 is stable, the flow G remains unchanged. The constancy of P2-P3 is adeptly managed by the automatic balancing valve assembly. For instance, if the inlet and outlet pressure differential P1-P3 increases, the automatic balancing valve assembly reacts by closing through pressure sensing film and spring action, thereby increasing P1-P2 to maintain P2-P3's consistency; conversely, if P1-P3 decreases, the automatic balancing valve assembly expands, reducing P1-P2 while maintaining P2-P3's constancy.
Every opening of the manual control valve Each group corresponds seamlessly to a specific flow rate, with the relationship between opening and flow rate meticulously calibrated via test bench trials. Boasting a state-of-the-art opening display and an innovative locking device, this system ensures precise control and reliability.
3. Performance and Features
1. Featuring the ability to set flow precisely according to design or operational needs, it automatically neutralizes pressure difference fluctuations within the system, maintaining a stable, unchanged flow.
2. Expertly addresses and resolves issues of uneven system heating and cooling, significantly enhancing the overall quality of thermal regulation.
3. Efficiently and comprehensively tackles the challenge of disparate pressure differences, resolving the issue of large pressure at the close end and minimal pressure at the far end.
4. Remarkably reduces system circulation water, thereby decreasing overall system resistance for improved efficiency.
5. Substantially alleviates design workload by eliminating the need for intricate hydraulic balance calculations within the pipe network.
6. Transforms the complexity of network adjustments into straightforward flow distribution, significantly reducing adjustment difficulty.
7. Seamlessly eliminates the need for flow redistribution when transitioning between different heat sources within a multi-heat source pipe network.
8. Flow display values undergo precise, random calibration on the test bench, with flow rates measured in m3/h, ensuring accuracy and reliability.
4. Technical Parameters
1. Medium temperature range: 0-150ºC. Working pressure difference: 20-600Kpa. Selection can be tailored to match the equal diameter of the pipeline, ensuring optimal compatibility.
2. Selection can also be based on the maximum flow rate and specific flow range of the valve, allowing for tailored and precise operational adaptability..
5. Installation and Commissioning
1. Ensure that the medium's flow direction meticulously aligns with the directional arrow on the valve body; this is crucial for optimal performance.
2. After installation, precisely set the flow rate to meet the specific demands of the series pipeline.
3. Verify that the pressure differential between both ends of the valve falls within the designated working pressure differential range.
4. Strive to avoid operating the valve at the minimum flow state to maintain efficiency and longevity.
5. As there is no blowdown screw on the spring cover, ensure regular blowdown maintenance to uphold functionality.
6. Adhere to the standard
CJ 179-2003 "Self-operated Flow Control Valve" guidelines to ensure compliance and safety.
Huhang Technology Group Co., Ltd. stands as a beacon of excellence and innovation in the multi-specialty supply industry, boasting an illustrious history of over two decades in the field. Based in the vibrant city of Fujian, China, our expansive operations span across the nation with five cutting-edge manufacturing facilities strategically located for optimal production efficiency: one in Shandong, one in Shanghai, and three in Fujian. We pride ourselves on our specialization in the global export of premium water and drainage valves, precision-engineered brass HVAC valves, and a comprehensive range of firefighting solutions, including state-of-the-art fire hydrants and extinguishers. Our unwavering dedication to delivering superior quality products and providing exceptional after-sales service truly distinguishes us in a competitive market, continuously elevating the standards of excellence in our industry.
Unsurpassed Supply Capacity: An impressive 50,000 meters produced daily, catering to your every demand.
Currently, bespoke shipping solutions are being developed for your selected quantity, ensuring reliability and efficiency.
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