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1. Overview
Introducing the SP45F and SP15F digital locking balancing valve,which represent a breakthrough in adjustment valve technology with their cutting-edge digital locking functionality. These valves boast a sophisticated direct current valve body structure, expertly designed to deliver superior flow characteristics and facilitate the optimal distribution of flow. These valvesolutions effectively tackle the challenges of uneven temperature distribution in heating and air conditioning systems. Additionally, they offer precise adjustments of pressure drop and flow to significantly enhance liquid flow within pipeline systems, thereby fulfilling objectives of fluid balance and energy efficiency.
The SP45F and SP15F digital locking balancing valvedesigns come equipped with an opening degree indicator, an opening locking device, and an integrated pressure measuring valve for accurate flow measurement. By installing these balancing valvesolutions at strategic points such as each branch and user entrance, and securing them post-adjustment with a specialized intelligent instrument, the total water volume of the system is meticulously controlled within an optimal range, thus countering inefficiencies like 'large flow, small temperature difference'. These SP45F and SP15F balancing valveoptions are the ultimate choice for heating system installations. They are versatile for use on both supply and return pipes, although installation on return pipes is generally preferred for high-temperature loops. This ensures ease of adjustment and system efficiency. Notably, when supply or return pipelines are fitted with these balancing valvesystems, there is no need for additional shut-off valveinstallations.
2. Product Characteristics
This advanced valve functions as a state-of-the-art balancing valve, ideally suited for diverse liquid pipeline systems, cementing itself as an innovative energy-saving valve. Equipped with a precision-calibrated digital display, this valve enables intuitive adjustment to any setting and can be securely locked in place. This valve finds its primary application in the heating pipeline systems of industrial and civil buildings. Many pipeline systems currently face hydraulic imbalances, but balancing valvetechnology provides a robust solution. By precisely adjusting pressure drop and flow rates, these valves improve the liquid flow conditions, achieving a harmonious balance and energy efficiency in pipeline systems. Even in the renovation of dual-pipe network projects, the deployment of this valve technology results in remarkable energy savings and enhanced outcomes.
3. Main Technical Parameters
| Nominal Pressure (MPa) |
Applicable temperature |
Body Test Pressure (MPa) |
Characteristic Curve |
Applicable medium |
Installation range |
| 1.0 | ≤120ºC | 2.5 | Equal Percentage |
Water, oil and other non-corrosiveErosive liquid | Pipe network system trunk,branch trunk, indoor water supply trunk, branch risers andmultiple boilers |
| 1.6 | 1.4 |
4. Product Standards
Designed and manufactured in compliance with the BS7350-1990 standard; Inspection test standard in accordance with BS7350;
Flange connection adheres to GB/T17241.6-2008 standard for 'integral cast iron flange';
Structure length is standardized according to GB/T12221-05 for 'Metal valve structure length';
Wire connection follows GB/T7306.1-7306.2 standards.
5. The Main Parts Material
6. Main Connection Sizes
The chart to the right illustrates the flow characteristic curve of this remarkable valve,manufactured expertly to provide valveswith equal percentage characteristics. As depicted, with an equal rate of change in opening, the flow rate changes equally, demonstrating a high flow rate with larger openings and a reduced flow rate with smaller openings. This design is optimal for engineering applications where high flow is essential, making the equal percentage valve the perfect choice. This characteristic allows for precise flow rate settings (unlike quick opening valvesand linear valves), providing the ability to adapt and adjust for ideal performance.
7. Comprehensive Flow Coefficient KV Value Table
9. Transportation and Storage
1) The valves must be securely packed to prevent collisions, tip-overs, pressure, and exposure to rain or snow during transit and storage.
2) Ensure that the valves are stored in an environment that is clean, dry, fireproof, and well-ventilated, free from corrosive gases.
3) When handling packed valves, use pallets for gentle handling. Forklifts or cranes should not apply direct pressure to the valve body.
4) Static Balance Valves must be transported and stored with the spool just leaving the seat open; closing is strictly prohibited.
5) Static Balance Valves must be handled carefully during transportation and storage. If the valve seat or spool is coated with lubricating oil, avoid using alcohol, gasoline, or other chemical solvents for cleaning.
10. Installation
1) Static Balancing Valve Before and after the Valve ensure that the branch pipe section is sufficiently long to maintain the rated flow output.
2) Confirm the installation position of the static balance valve by referring to the drawing. It is recommended to install the static balance valve on the return pipe of the HVAC system. Simultaneously, verify the pipeline's water flow direction and install the static balance valve in strict accordance with the direction of the water flow arrow on the valve body.
3) Prior to installing the static balance valve, ensure the pipeline is free from debris. Avoid leaving welding slag, branches, stones, or similar debris to prevent damage to the valve;
4) Ensure that the pipe flange welding does not cause excessive deformation and that the welding angle does not compromise the sealing surface's flatness.
5) After installing the static balancing valve , fully open the valve to allow thorough pipeline flushing until it is clean. Avoid closing the valve repeatedly during flushing to prevent damage.
6) Once flushed, toggle the static balance valve on and off several times. Check that the counter reads "zero" when closed. Each valve is rigorously
tested before leaving the factory, ensuring the counter is "zero" when closed. For replacement parts, contact the customer service at Shanghai Airlines.
11. Debugging and Maintenance
1) The debugging of the balance valve is part of the system debugging. Users should contact Shanghai Airlines customer service for assistance with debugging.
2) The Balance valve is designed for life balance, requiring no maintenance under normal conditions due to the absence of wearing parts.
3) After years of use, the rubber sealing components of the balance valve may exhibit damage or aging, necessitating rubber seat replacement.
4) When the ambient temperature falls below freezing in winter, implement anti-freezing measures to protect the valve body.
12. Typical Installation Diagram
Quality and Inspection:
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