The EDRV electric dynamic balance valve (commonly known as a Pressure Independent Control Valve or PICV) is a high-efficiency hydraulic control device that integrates dynamic balance and electric regulation functions. Its core structure consists of an electric actuator and a regulating valve body with a built-in automatic differential pressure compensation device, allowing for precise adjustment of media flow according to instructions from an automatic control system. The valve works through a precision mechanical compensation mechanism that offsets network pressure fluctuations in real-time to ensure the flow remains constant at a set opening. This pressure-independent characteristic effectively solves flow interference between terminal devices and dynamic hydraulic imbalance in large-scale HVAC and heating systems. As a critical component of intelligent energy management systems, the EDRV is widely used in central air conditioning HVAC systems, large regional heating projects, and process cooling water systems, providing an ideal solution for refined temperature control and energy conservation.

Product Image of EDRV Electric Dynamic balance Control Valve

Feature

1.Highly integrated functions:Achieves a triple combination of electric regulation, dynamic balance, and flow limitation within a single valve body. This significantly reduces the number of components required for installation, simplifies pipeline layout, and lowers overall investment and maintenance costs.
2.Excellent pressure-independent characteristics:Equipped with a built-in high-sensitivity pressure compensation component that automatically offsets pressure fluctuations caused by other branches switching in the network. Within the rated differential pressure range, flow is only adjusted by the control signal and is not affected by network pressure changes, completely eliminating terminal interference.
3.Extremely high flow control precision:The valve core features a streamlined profile optimized by fluid dynamics to provide excellent linear or equal percentage flow characteristics. Combined with a high-resolution intelligent actuator, it enables continuous and precise proportional fine-tuning of media flow to ensure stable control parameters.
4.Significant energy-saving effect:By dynamically locking the flow of each terminal branch, it effectively eliminates overflow and bypass phenomena, ensuring the circulating water pump always operates in its high-efficiency zone. Compared to traditional balance solutions, it effectively reduces pumping energy consumption and improves the comprehensive efficiency of the thermal system.
5.Simplified and efficient commissioning:During initial operation or expansion of the system, tedious manual hydraulic balance is unnecessary. The system automatically reaches a hydraulic balance state simply by setting actuator parameters according to the design flow, greatly shortening the project delivery cycle.
6.Intelligent drive and real-time feedback:Equipped with an intelligent electronic electric actuator that receives standard control signals and provides precise valve position feedback. It supports fault self-diagnosis and fail-safe protection upon signal interruption, facilitating seamless integration with BAS or DCS systems.
7.Durable materials and stable operation:The valve body is made of high-quality brass, and internal balance components are mostly made of high-strength stainless steel. Precision-machined sealing pairs ensure long-term operational reliability and provide excellent shut-off performance.
8.Modular design for easy maintenance:The compact structure and scientific connection between the actuator and valve body allow for actuator inspection and replacement without dismantling the pipeline. Modular internal wearing parts make routine cleaning and maintenance simple, significantly reducing operating expenses.