Engineered to withstand harsh environments, our premium components integrate directly into Istanbul's maritime, automotive, and commercial HVAC networks.
As the geopolitical and economic bridge between Europe, the Middle East, and Central Asia, Istanbul has established itself as a premier manufacturing and logistics hub for flow control technologies. The Marmara region, centered around Istanbul's heavy industrial zones like Tuzla, Hadımköy, and Dudullu OSB, hosts advanced metallurgical, automotive, and maritime clusters. These sectors command extremely high standards for refrigeration piping, hydraulic machinery, and safety relief systems.
Valves and custom fittings produced for Istanbul's regional market must address severe environment parameters, including maritime salinity in shipyard refrigeration systems and high thermal volatility in automotive assembly lines. Leveraging global supply networks, local factories are increasingly pivoting towards highly optimized, low-leakage refrigeration valves to meet strict EU F-gas regulations and ISO-9001 quality compliance thresholds.
Our copper fittings, capillary coils, and service valves are strictly tested for chemical composition limits, ensuring seamless entry into the European Economic Area (EEA) without compliance roadblocks.
Advanced inverter-compatible PCB control systems modulate refrigerant flow by interacting dynamically with smart electronic expansion valves (EEVs), boosting HVAC system energy ratings by up to 35%.





Founded in 1988 as the Xiangshan Refrigeration Accessories Factory of Zhejiang University, Ningbo Taojun Refrigeration Equipment Co., Ltd. has spent over three decades establishing an unyielding reputation for engineering excellence. Based in Ningbo, a global hub for maritime export, the company operates a state-of-the-art national high-tech enterprise facility that designs, develops, and distributes premium filter driers, check valves, service stop valves, wire-tube condensers, and high-precision copper fittings.
With an academic foundation root in Zhejiang University's cooling research divisions, our engineering core excels at solving fluid dynamics and desiccant efficiency challenges. The "Lingshan" and "Taojun" brand names have become synonyms for robust components that sustain HVAC system lifespans across residential, commercial, and industrial platforms.
Over the years, we have solidified strong OEM and ODM partnerships with leading home appliance manufacturers globally, including Midea, Gree, Haier, Xinfei, Whirlpool, Electrolux, and Huarui. Our distribution network crosses Europe, the Middle East, South America, and Africa, delivering robust cooling components optimized for complex local environments.
Our copper filter driers and service valves are engineered with a specific internal geometry to maximize refrigerant throughput while ensuring total moisture extraction.
Equipped with 3A Molecular Sieve core matrix providing water absorption capacity of ≥20%. Ideal for trapping trace hydrochloric and hydrofluoric acids that cause copper plating in hermetic compressors.
We utilize precision automated argon arc welding systems to fabricate filter shells, ensuring pressure resistance up to 60 Bar and leak-proof performance with high-pressure refrigerants like R410A and R32.
Featuring a dual-layer fine mesh copper screen that traps particulates down to 25 microns without causing noticeable static pressure drops inside the liquid line.





Our commitment to rigorous quality control protocols and advanced research makes us the ideal supply partner for Turkish commercial projects.
Our manufacturing center relies on high-speed CNC punching and extrusion systems directly imported from Germany, yielding component geometries with tolerance precision down to ±0.02mm.
We host a specialized research center staffed by 15 seasoned cooling engineers, including Doctors and Professors from the University of Science and Technology of China (USTC) and Zhejiang University.
Our smart display modules and liquid crystal controllers employ Japanese-imported ITO film (zero thermal shrinkage) and spacers (perfect uniformity) to guarantee performance between -35°C and 75°C.
All finished products are tested for chemical safety under REACH, RoHS, and WEEE directives, featuring 100% recyclable protective materials suitable for strict European supply chains.
We execute 500-hour high/low temperature tests, thermal shock protocols (10°C to 90°C), and 100V high-voltage insulation tests. Vacuum systems undergo automated helium leak detection to guarantee airtight integrity.
Equipped with a comprehensive MES system and real-time ERP inventory management, we support flexible manufacturing with a minimum order quantity (MOQ) of 500 units and rapid shipping lines targeting Istanbul's industrial hubs.
A retrospective look at our technological evolution from local accessories factory to global high-tech smart manufacturer.
Xiangshan Refrigeration Accessories Factory of Zhejiang University is established, initiating specialized research into capillary tube dynamics and desiccant performance models.
We build our first dedicated manufacturing factory site in Ningbo, scaling production lines to satisfy the skyrocketing demand of Chinese domestic appliance brands.
Integration of computerized Manufacturing Execution Systems (MES) for trace-level transparency across machining, brazing, testing, and shipping workflows.
Ningbo Taojun Refrigeration Equipment Co., Ltd. is officially established, creating the "Taojun" and "Lingshan" brands for advanced condensers, service valves, and accumulator filters.
Achieved recognition as a National High-Tech Enterprise in China. Expansion of the automated cleanrooms and development of smart electronic controller manufacturing lines.
Deploying lead-free brass, low-temperature brazing innovations, and smart expansion valves to facilitate low-carbon refrigeration infrastructures globally.
From marine applications in Tuzla to the extreme dry heat of Central Anatolia, our products are customized for diverse mechanical systems.
Istanbul’s marine sector demands high-strength, anti-corrosive copper capillary coils and brass valves. Our components undergo salt spray testing to prevent electrolytic corrosion caused by constant exposure to saline maritime air.
Modern high-rise HVAC infrastructure utilizes variable refrigerant flow (VRF) technology. Our advanced AC Inverter PCBs and split service valves ensure optimal thermal cycling and minimum vibration in high-velocity cooling lines.
Preventing moisture damage is vital in food export channels. Our copper filter driers absorb water and acids to secure refrigeration compressors, preventing cold storage malfunctions during transshipment at Istanbul Airport.





Pre-Sales Technical Consultation: Our sales engineers carry more than 15 years of pump and refrigeration design experience. We offer one-to-one engineering layout evaluation, providing high-fidelity drawing support in CAD/SolidWorks within 24 hours.
Post-Sales Lifecycle Support: We offer a 1-year comprehensive warranty, technical installation training, equipment troubleshooting, and lifetime free technical updates. We maintain consistent feedback loops to continuously refine core component quality.
ISO 9001:2015 Audited: Our manufacturing systems run under official Registration No. 41325Q00065R0S, audited by Zhongci International and certified through China's CNCA agency. This guarantees standardized traceability from basic brass billets up to finished, tested products.
ISO 9001 Main Certificate
Scope of Registration
RoHS Certificate
UL Certification
CE Certification
Explore our high-performance components designed for robust welding, reliable fluid distribution, and tight sealing in refrigeration systems.
In-depth responses resolving technical inquiries surrounding product design, material configurations, and cross-border trade logistics.
Copper alloys exhibit high thermal conductivity (approx. 401 W/m·K) and form a natural protective oxide layer that resists marine corrosion. In contrast, standard steel tubing is prone to rust in damp environments, which can lead to inner-wall scaling and restriction of the capillary orifice, reducing cooling efficiency.
The 3A molecular sieve features a pore structure designed to selectively adsorb moisture molecules (diameter ~2.8Å) while excluding refrigerant molecules like R134a, R32, or R1234yf (diameters >4Å). This configuration avoids chemical reactions or premature breakdown of the refrigerant gas, protecting the compressor system.
Every check valve and split service valve is placed inside a sealed vacuum chamber and pressurized with helium gas. The system detects gas migration down to a leak rate threshold of 10⁻⁷ mbar·l/s, ensuring no micro-fractures exist along the brazed joints or valve seats before shipment.
We customize material thickness (for high-pressure CO₂ or R410A designs), physical dimensions, connecting thread profiles (such as NPT or BSP), and integrated electronic sensors. We can also adapt packaging configurations to integrate directly with automated assembly systems in Turkish home appliance factories.
Get in touch with our design engineers to optimize your refrigeration flow control loops. We offer rapid design iterations, certified quality compliance, and reliable supply chain support.
Send Inquiry Now