From humans seeking shelter in caves 40,000 years ago to escape the cold, to the invention of air conditioning in 1902, to today's intelligent temperature control, the pursuit of a comfortable indoor environment has never ceased. Today, Heating, Ventilation, and Air Conditioning (HVAC) systems account for up to 50% of building energy consumption, and we spend over 90% of our time indoors. Efficient and precise regulation of HVAC systems is therefore key to enhancing comfort and achieving energy savings. Within the precise network of building automation, various valves act as intelligent switches controlling "water flow" and "air flow," serving as core components that ensure balanced, safe, and efficient system operation.
Today, let's explore the application of several key valves in Hensong's building automation product line within Building Automation Systems (BAS): Electric Ball Valves, Electric Control Valves, Balancing Valves, and Butterfly Valves.
I. DQF Series Electric Ball Valve
The DQF electric ball valve assembly consists of a valve body and an electric actuator. The valve core is a sphere with a flow passage. Controlled by a thermostat, the actuator drives the motor to adjust the valve core's opening, thereby controlling water flow.
Spotlight Product Analysis (DQF-F Series):
Precision Control: Unique tapered inlet design provides excellent equal percentage flow characteristics, where the change in opening has an ideal proportional relationship to the change in flow rate, enabling more precise control.
Stable & Reliable: Simplified flow path design significantly reduces clogging risk; high flow capacity and low resistance loss contribute to energy efficiency; ultra-quiet flow path ensures a silent environment.
Robust & Durable: High shut-off pressure capability and high pressure rating ensure tight sealing and system safety.
Smart & Convenient: Features standard manual override and opening indicator; pre-equipped with pressure sensor and temperature sensor interfaces for system integration.
Core Applications: Water circuit on/off and flow regulation for HVAC terminals (like Fan Coil Units - FCUs) in building automation; fluid shut-off and precise control in central air conditioning, heating, and water treatment systems.
Key Advantages: High-precision flow control, exceptional clogging resistance and reliability, low resistance for energy efficiency, ultra-quiet operation, strong sealing and pressure capacity, smart interface readiness, convenient operation, supports system integration.
II. DDF Series Electric Control Valve
The DDF electric control valve consists of a valve body and an electric actuator, specifically designed for regulating flow in chilled and hot water systems.
Spotlight Product Analysis (DDF-B-X...F Series Stainless Steel Electric Control Valve):
High Flow Efficiency: Optimized diameter design provides significantly greater flow capacity compared to similar products.
Energy-Efficient Actuation: The 2-way valve utilizes a pressure-balanced design, drastically reducing the required driving thrust, saving energy, and reducing consumption.
Smart Response: Paired with the DFQ-S series actuator, it supports combined analog control and analog switching control. Upon receiving analog signals from the Building Automation System (BAS), it can continuously and precisely change the valve core opening for fine regulation of flow/pressure.
Core Applications: Scenarios in building automation requiring precise, dynamic flow control, such as HVAC terminal water circuits, central air conditioning, and heating systems.
Key Advantages: High regulation accuracy, fast response, supports complex control strategies, energy-efficient actuation design, large flow capacity with low resistance.
III. PHF Series Balancing Valve
The PHF Series Balancing Valve integrates dynamic balancing and electric regulation functions, serving as the cornerstone for ensuring hydraulic balance in HVAC systems. Through intelligent modules, it can automatically control the flow and temperature in various circuits, achieving energy savings and comfort.
Spotlight Product Analysis (PHF-DDY...L Series Dynamic Pressure Independent Control Valve - DPICV):
Pressure-Independent Characteristic: A core innovation! Integrates dynamic flow regulation and automatic differential pressure compensation. Regardless of system pressure fluctuations, it automatically offsets the impact, ensuring a constant and 100% controllable water flow through terminal equipment (Air Handling Units - AHUs, Fresh Air Handling Units - FAHUs, Fan Coil Units - FCUs, etc.).
Intelligent Optimization: Combined with a full-stroke electric actuator and intelligent control module, it enables automatic control of flow and temperature in various terminal circuits, maximizing system operational efficiency and energy savings.
Core Applications: Precise temperature and flow control for terminal equipment (AHUs, FAHUs, FCUs, chilled beams, etc.) in HVAC systems.
Key Advantages: Pressure-independent stable flow, dynamic balance ensures system stability, electric regulation for precise control, smart integration promotes energy savings, strongly ensures a comfortable environment.
IV. DFR Series Butterfly Valve
The DFR Series Butterfly Valve has a relatively simple structure; its valve core is a disc-shaped butterfly plate. A 90-degree rotation enables quick opening/closing or regulation.
Core Value: Primarily performs shut-off and throttling tasks in pipelines, especially suitable for low-pressure, large-diameter pipelines.
Core Applications: Water supply and drainage, water and electrical systems in building automation; pipelines transporting corrosive or non-corrosive fluid media for regulating and isolating flow (especially in large diameter scenarios).
Key Advantages: Compact structure with small footprint, lightweight and easy to install, quick open/close with fast response, low flow resistance saving energy, cost-effective and practical.
V. Building an Efficient and Intelligent Fluid Distribution Network
In real-world building HVAC systems, valve selection requires comprehensive consideration of media characteristics, temperature, pressure, flow range, regulation accuracy, and cost budget, among others. The valves mentioned above do not work in isolation but operate in precise coordination and synergy.
Balancing valves establish the foundation for hydraulic stability, electric control valves enable dynamic and precise control, while ball valves and butterfly valves ensure reliable on/off operation. Together, these four types synergistically build an efficient and controllable fluid distribution system. Their proper selection, installation, and maintenance are core aspects of ensuring building environmental comfort, energy-efficient operation, and equipment safety.
VI. A Solid Backing for Building Comfort and Energy Efficiency
Hensong Group, a leading supplier of fluid control solutions for HVAC systems, is renowned for its exceptional manufacturing capabilities and strict quality management system, providing customers with professional and reliable OEM/ODM/JDM services.
The Group is not only a National High-Tech Enterprise but also a primary drafting unit for multiple national/industry standards, such as the "Electric Valves for Air Conditioning Water Systems," leading the industry's technological development. Core products (electric ball valves, electric control valves, balancing valves, etc.), supported by continuous innovation from 145 national patents, play a key role particularly in Building Automation Systems, earning widespread market trust. We possess a CNAS-accredited national laboratory, equipped with high-precision testing equipment such as direct reading spectrometers and mass method hot water flow calibration devices. Every valve undergoes a full range of rigorous tests before leaving the factory, ensuring stable and reliable operation under various complex working conditions.
Hensong Group is committed to leveraging innovative fluid control technology and superior product quality to assist various buildings in achieving stable, reliable, and precise flow distribution, providing core assurance for creating more comfortable, healthy, and energy-efficient building environments.