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About DingSen

Shaoxing DingSen Refrigeration Technology Co., Ltd. founded in 2008, is a China Wholesale Air Conditioning Three Way Valve Supplier and OEM Air Conditioning Three Way Valve Factory, mainly producing refrigeration accessories and auto air-conditioning accessories. Having been established for more than 10 years, the company has since taken "Honesty and Innovation" as its goal, and "Superb Manufacture, Good Virtue, Serious Attitude, and High Quality" as its business philosophy. Guided by high-tech development, it adheres to a sustainable path of growth focused on quality and benefit.
Through continuous innovation and practice, the company has built a solid quality foundation and a guaranteed reputation in the manufacturing industry. Meanwhile, with efficient and high-quality service and a belief in mutual benefit, the company actively cooperates with businesses from all fields, constantly explores the market, and strives to create a better tomorrow.
Dingsen: Refrigeration & auto AC parts since 2008.
Decades of precision manufacturing.
Durable evaporators, condensers, connectors.

shaoxing DingSen Refrigeration Technology Co Ltd.

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Industry knowledge

Air Conditioning Three Way Valve is a valve with three ports in an air conditioning system. Its core function is to switch the refrigerant path, thereby achieving stable switching between cooling and heating modes.

Core Function: It precisely controls the flow direction and flow rate of the refrigerant, integrating on/off and flow-diverting functions. When the system needs cooling, it guides the refrigerant to flow along the cooling cycle path; when switching to heating mode, it quickly and reliably changes the path, ensuring efficient operation of the heat pump system.

Technical Requirements: To achieve reliable switching between cooling and heating modes, the valve must possess extremely high sealing performance and rapid response capabilities. Any minor leakage or delay can lead to decreased system efficiency or even malfunction.

Various Application Scenarios: From Living Rooms to Large Buildings
The air conditioning three-way valve is not just an accessory for a single product; its applications cover various air conditioning systems from small to large:

Residential Air Conditioning: In inverter split units or some heat pump residential units, the air conditioning three-way valve is the fundamental guarantee for achieving dual-use (cooling/heating), ensuring users can enjoy a comfortable indoor environment in different seasons.

Commercial Air Conditioning Systems: In commercial settings with higher environmental control requirements, such as offices and hotels, air conditioning three-way valves ensure independent temperature control for different areas and are an effective tool for achieving precise flow control.

Multi-Split Air Conditioning (VRV/VRF): For multi-split systems, air conditioning three-way valves (or related four-way valves working in conjunction) are key to achieving shared cooling and heating within the system. They are responsible for refrigerant distribution, efficiently delivering cold/heat sources to the indoor units that need them.

Technological Trends: Dual Driven by Reliability and Energy Efficiency Facing increasingly stringent energy efficiency standards, modern air conditioning three-way valves are developing towards higher reliability and higher flow control accuracy:

Material Upgrades: Utilizing corrosion-resistant, high-strength materials to withstand high pressure and refrigerant erosion during long-term operation, extending service life.

Drive Optimization: Employing more advanced electromagnetic or servo drive technology to achieve faster response speeds and more precise position control, reducing energy loss during mode switching and improving the quality of stable switching.

Intelligent Integration: The new generation of valves integrates more diagnostic functions, allowing users and maintenance personnel to monitor the operating status of air conditioning three-way valves and provide early warnings of potential refrigerant path blockages or leaks.

Manufacturer Strength Demonstrated: A Solid Backing for Quality and Efficiency

We understand that providing high-quality air conditioning three-way valves to the high-end market requires strong production and management capabilities. Our company has sufficient production capacity to stably meet large-scale supply demands.

Strict Supply Chain Control: We strictly control the price, quality, and supply of raw materials, which lays a solid foundation for our continuous and stable production of high-standard products.

Efficient Digital Operations: The company has established a comprehensive ERP system, available 24/7, with rapid response speed and short response time, typically completing efficient information processing and instruction issuance every 15-30 minutes.

International Market Standards: We focus on developing high-quality products for the high-end market. All our products meet international standards and have been successfully exported to major markets in Europe, America, Japan, and other parts of the world, earning the trust of the global market.

As a core component ensuring the normal operation of the air conditioning system and achieving efficient cooling and heating switching, the quality and performance of the air conditioning three-way valve cannot be ignored. Choosing a high-quality air conditioning three-way valve is key to enhancing the product's market competitiveness.