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1. Structure and Performance
At the heart of Huhang Technology Group Co., Ltd.'s offering, the High-Quality Flow Control Valve: Pneumatic Control Valve for Ductile Iron, lies the self-operated flow control valve . Its primary function is to ensure a constant flow rate through the valve , even amidst fluctuating pressure differences between the inlet and outlet of the valve. This guarantees the steady flow of the connected systems-be it a loop, user, or device. The self-operated flow control valve is known by several names, including self-operated flow balance valve, fixed flow valve, and self-balancing valve, as well as dynamic flow balance valve . Despite the variety in types, these self-operated flow control valves share fundamental working principles, though their structural designs may differ.
2. Structure and Working Principle Structurally
The self-operated flow control valve structure is ingeniously configured as a double valve system. It combines a manual regulating valve group with an automatic balancing valve group, as depicted in Figure 1. The manual regulating valve group allows users to set desired flow rates, while the automatic balancing valve group ensures those flow rates remain consistent.
For the self-operated flow control valve , the manual control valve group employs the flow equation G=P2-P3, with Kv representing the manual control valve 's flow coefficient, and P2-P3 denoting the pressure variance across the manual control valve . With a fixed Kv, keeping P2-P3 constant ensures unvarying flow G. This stability is meticulously maintained by the automatic balancing valve group. For instance, if the pressure difference from inlet to outlet, P1-P3, increases, the automatic balancing valve group responds by adjusting the pressure sensing mechanism, raising P1-P2 to uphold P2-P3's consistency. Conversely, if P1-P3 decreases, the automatic balancing valve group expands, adjusting P1-P2 downward to preserve the steadiness of P2-P3.
Every setting within the manual control valve Each group corresponds to a distinct flow rate. The correlation between the valve opening and flow rate is precisely calibrated through rigorous test bench testing. Additionally, it is equipped with both a display to show the current opening and a locking device to secure the settings.
3. Performance and Features
1. Tailor the flow to match either design specifications or real-world needs. This valve automatically compensates for any pressure difference fluctuations in your system, ensuring a steady flow remains constant and reliable.
2. Overcome inconsistencies in temperature distribution throughout your system, enhancing the overall quality and efficiency of both heating and cooling operations.
3. Effectively address and resolve the imbalance between high pressure differences at the near end and low pressure differences at the far end, ensuring consistent system performance.
4. Minimize the system's circulation water volume, thereby reducing overall system resistance and improving efficiency.
5. Decrease the design workload by eliminating the need for complex hydraulic balance calculations within the pipe network, streamlining the entire process.
6. Simplify the intricate task of network adjustment by transforming it into a straightforward flow distribution process, significantly easing operational burdens.
7. Remove the necessity for flow redistribution tasks when switching the heat source in multi-heat source pipe networks, enhancing operational flexibility and efficiency.
8. Flow display values are meticulously calibrated on the test bench to ensure accuracy, with the flow measured in cubic meters per hour (m3/h).
4. Technical Parameters
1. Medium temperature ranges from 0 to 150ºC. 2. Working pressure difference spans from 20 to 600 Kpa. Selection criteria 1: Choose based on the pipeline's equal diameter, ensuring compatibility and optimal performance.
2. Alternatively, select based on the valve's maximum flow rate and corresponding flow range, ensuring it meets your specific system requirements. Valve.
5. Installation and Commissioning
1. Ensure that the flow direction of the medium aligns perfectly with the flow direction indicated by the valve body arrow; this guarantees optimal operation.
2. Post-installation, calibrate the flow rate meticulously to meet the precise demands of its series pipeline;
3. Verify with utmost accuracy that the pressure differential at both ends of the valve falls within the designated working pressure difference range;
4. Strive diligently to prevent the valve from operating in the absolute minimum flow state as much as possible;
5. Note that the spring cover lacks a blowdown screw, necessitating regular and conscientious blowdown maintenance.
6. Adhere strictly to the standard
CJ 179-2003 "Self-operated Flow Control Valve" to ensure compliance and reliability.
Huhang Technology Group Co., Ltd. proudly stands as a premier name in the world of multi-specialty supply, boasting an impressive legacy of over two decades of unmatched professional expertise. Strategically headquartered in the vibrant province of Fujian, China, our operational prowess spans across 5 state-of-the-art manufacturing hubs located nationwide: one in the industrious region of Shandong, one in the bustling metropolis of Shanghai, and three within the heart of Fujian itself. Our core specialization lies in the global export of an extensive array of premium water and drainage valves, precision-engineered brass HVAC valves, robust fire hydrants, state-of-the-art extinguishers, and cutting-edge firefighting equipment. What truly distinguishes us from our competitors is our unwavering dedication to delivering superior quality coupled with an unparalleled commitment to impeccable after-sales service, ensuring our esteemed clientele always receive the best.
Supply Ability: Capable of producing up to 50,000 meters each day, ensuring a steady supply for all your needs.
Currently, tailored shipping solutions for your specified quantity are not available. Please contact us for personalized options.
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