The BQ7300 electric balancing valve is an intelligent flow control device that integrates a high-precision electric actuator with a hydraulic balancing valve body. Designed for modern HVAC systems and district heating networks, it aims to achieve remote automatic balancing and precise control of water systems. Its operating principle involves receiving standard analog signals (such as 4-20mA) from BAS or DCS systems to accurately adjust the valve plug position, thereby dynamically adjusting pipeline resistance to eliminate hydraulic imbalance among parallel loops. The BQ7300 series not only possesses the differential pressure measurement and pre-setting functions of traditional balancing valves but also enables the on-demand distribution of heating and cooling energy through electric actuation, serving as a core execution component for enhancing system energy efficiency and ensuring indoor comfort.

Product Image of BQ7300 Electric Balancing Valve

Feature

1. High functional integration:Combines the dual functions of an electric control valve and a balancing valve into a single body. This design simplifies pipeline layout, reduces connection points, and significantly lowers engineering installation costs and space requirements.
2.High-precision linear regulation:The valve plug profile is optimized through fluid dynamics to provide excellent linear or equal percentage flow characteristics. Combined with high-resolution electric drive units, it enables continuous and precise proportional regulation of the media flow for stable control parameters.
3.Built-in differential pressure and flow measuring ports:The valve body is equipped with two dedicated measuring nipples for connecting smart balancing instruments. Operators can directly read real-time pressure drops to calculate instantaneous flow, providing accurate data for hydraulic balance analysis.
4.Excellent shut-off sealing performance:Utilizing single-seat or cage-guided structures with finely lapped sealing surfaces, the valve maintains high sealing integrity. It provides reliable shut-off in the fully closed position while performing flow regulation.
5.Intelligent drive and self-diagnosis:Equipped with an intelligent electronic actuator featuring built-in servo control and non-intrusive field settings. It includes stall protection, overload protection, and self-diagnostic functions, with real-time valve position feedback to the control room.
6.Mechanical self-locking and high stability:The transmission mechanism uses worm gears or lead screws with natural self-locking capabilities. Once adjusted, the valve position effectively resists fluid pressure fluctuations, ensuring constant flow settings in complex load environments.
7.Durable materials and wide adaptability:The body is available in high-quality ductile iron, cast steel, or stainless steel with hardened internal parts. It is erosion-resistant and suitable for various media including chilled/hot water, industrial circulating water, and glycol solutions.
8.Convenient maintenance and low operating costs:The compact design and scientific connection between the actuator and body allow for drive component maintenance without dismantling the pipeline. Modular wearing parts make routine inspection and cleaning simple and efficient.