Engineered for absolute reliability, compatibility, and high mechanical protection in demanding HVAC/R cooling loops.
Analyzing the modern refrigeration paradigm and the critical role of filtration components.
In modern commercial and industrial refrigeration, the stability of the refrigeration cycle is paramount. A drier strainer (commonly called a filter drier) functions as the key protection unit for compressors and expansion valves. The global market is witnessing an unprecedented transition due to the phasing down of high-GWP (Global Warming Potential) synthetic refrigerants under the Kigali Amendment, paving the way for HFC alternatives and natural refrigerants like R-290 (propane), R-744 (CO₂), and R-600a (isobutane).
These new systems run at significantly higher operating pressures and feature oils (such as polyolester or POE) that are highly hygroscopic compared to traditional mineral oils. Moisture ingress reacts with POE oil to trigger hydrolysis, creating organic acids that erode motor windings and cause catastrophic compressor failures. Thus, global OEMs require ultra-high-efficiency drier strainers capable of simultaneously capturing particulate debris and desorbing trace moisture below critical PPM levels.
Ningbo Taojun Refrigeration Equipment Co., Ltd. has spent over three decades mastering these operational variables. Originating in 1988 as the Xiangshan Refrigeration Accessories Factory of Zhejiang University, our engineering approach focuses on mechanical refinement to match these evolving chemical dynamics.
High-purity metallurgy meets precision chemical engineering for structural integrity.
Fabricated using deoxidized high-phosphorus copper (C12200). This provides excellent corrosion resistance, superior thermal transfer stability, and ease of brazing on system assembly lines. The physical casing stands up to extreme cycle expansion loads and exhibits zero stress corrosion cracking over multi-decade operational cycles.
Incorporates premium 3A (three-angstrom) molecular sieve matrices. Unlike 4A desiccants which tend to co-adsorb refrigerant molecules and cause premature breakdown of the core, the 3A desiccant selectively captures water molecules (kinetic diameter ~2.6 Å) while ignoring refrigerant compounds. Water absorption capacity exceeds 20% by weight.
Designed with glass fiber pads and polyester mesh dividers that filter out micron-scale wear particles, flux residues, and carbon deposits down to 25 microns. The shell assembly utilizes precision automated argon arc welding, ensuring complete hermetic closure, zero leakage under high system discharge pressures, and minimal thermal stress.
Ningbo Taojun Refrigeration Equipment Co., Ltd. is located in Xiangshan, Ningbo, a scenic coastal hub in China. Founded in 1988, the company's technical roots trace back to the Xiangshan Refrigeration Accessories Factory of Zhejiang University. Our product scope covers: filter driers, check valves, air conditioning valves, condensers, brass and copper accessories, air conditioning cable ties, and specialized HVAC components.
Through 30+ years of process optimization, Taojun has evolved into a national high-tech enterprise (certified in 2021) integrating industrial R&D, advanced manufacturing, and direct global export channels. Operating under our domestic brand "Lingshan" and global trademark "Taojun", we focus on engineering quality to achieve reliable refrigeration cycles.
Our technical edge is built upon automation, raw material integrity, and automated process tracking.
Our core production equipment is imported directly from Germany, providing precise mechanical tolerances within ±0.02mm for aluminum and copper extrusion processes. In 2008, the factory integrated a digital MES (Manufacturing Execution System) to track the production cycle of each component, from raw extrusion to final helium-leak verification, ensuring batch-level traceability.
Innovation remains the core driver of our growth. Our R&D center is staffed by 15 specialist engineers, including doctoral graduates and professors from the University of Science and Technology of China (USTC). This academic foundation enables us to simulate thermodynamic heat exchange, analyze chemical interactions between refrigerants and molecular sieves, and develop custom HVAC accessories.
From domestic appliances to heavy industrial refrigeration loops, our products maintain stable operation under various conditions.
Designed for compact, low-charge hermetic systems. Our miniature copper filter driers (10g, 15g, 20g configurations) offer moisture absorption and particulate filtration, preventing capillary tube freeze-ups and prolonging domestic appliance service life.
Engineered for high-volume supermarkets, display cases, walk-in coolers, and commercial ice machines. These systems operate continuously under varying heat loads, requiring larger capacity solid-core molecular sieve driers to manage moisture over extended run times.
Engineered for automotive air conditioning systems and chillers subject to mechanical vibration. Our mechanical connections and brazing alloys are formulated to withstand high pressure, thermal cycling, and mechanical stress without developing fatigue micro-cracks.
We support global HVAC/R distributors and OEMs with verified quality processes and dedicated technical support.
Our manufacturing plant operates under GB/T19001-2016 / ISO9001:2015 registration (No. 41325Q00065R0S), certified through CNCA. This guarantees that from raw copper sourcing to vacuum sealing and packaging, all processes follow strict documentation and quality audits. We maintain RoHS, REACH, and WEEE compliance to meet strict European environmental regulations.
Answers to common industry questions regarding drier strainer specifications, material selection, and system integration.
Premium HVAC hardware, brazing accessories, electrical controls, and specialized fittings.
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