Premium auxiliary piping, support, and custom assembly line solutions from our ISO 9001-certified factory
Mitigating system acid, moisture, and particulate damage in high-performance thermal loops
Utilizing premium 3A molecular sieves, our copper drier strainers reduce system humidity down to critical threshold limits (less than 10 PPM), preventing expansion valve icing and copper plating processes within the compressor crankcase.
By integrating activated alumina elements within our composite desiccant cores, we actively neutralize organic and inorganic acids generated by lubricating oil degradation and high thermal operational strains.
High-density mechanical filter meshes filter out micro-particles, weld slag, and metallic debris down to 20 microns, shielding capillary expansion ports from downstream clogging and friction damage.
38 Years of Engineered Innovation in HVAC/R Control Valves & Filtration Hardware
Ningbo Taojun Refrigeration Equipment Co., Ltd. is located in Xiangshan, Ningbo, a premier coastal manufacturing hub. Founded in 1988, our predecessor was the Xiangshan Refrigeration Accessories Factory of Zhejiang University. For nearly four decades, we have designed, manufactured, and distributed a comprehensive line of refrigeration parts, including copper filter driers, check valves, air conditioning valves, condensers, brass and copper accessories, and auxiliary piping systems.
In 2021, Taojun was recognized as a National High-Tech Enterprise. Under our domestic brand "Lingshan" and international manufacturing brand "Taojun", we deliver industrial-grade components to appliance giants like Haier, Xinfei, Midea, Gree, Whirlpool, Electrolux, and Huarui. Our global supply network spans across North America, Europe, South America, Southeast Asia, and the Middle East.
Premium materials selected for low environmental impact and high operating pressures
Every drier strainer engineered at Taojun is fabricated using high-purity TP2 copper (minimum 99.9% copper content). TP2 copper guarantees optimal ductility and superior corrosion resistance under continuous vibration and variable heat loads. Our joints and shells undergo high-temperature automatic brazing using precision alloys to achieve zero-leakage joints rated for pressures exceeding 4.2 MPa (R410a, R32 system compatible).
Inside the drier shell, our desiccant core is optimized for the target chemical refrigerant. We utilize 3A molecular sieve beads, featuring custom pore sizes that selectively absorb water molecules while excluding refrigerant molecules, preventing catalyst decomposition.
TP2 Deoxidized Copper (High Purity)
Water absorption capacity ≥ 20%
Auto Argon Arc & Brazing Welds
Stainless Steel (100 to 200 Mesh)
| Model / Size Class | Body OD (mm) | Inlet/Outlet ID (inch) | Overall Length (mm) | Molecular Sieve Qty (g) | Max Pressure (bar) |
|---|---|---|---|---|---|
| TJ-MS-10G | Φ19.0 | 1/4", 5/16" | 110 | 10g | 42 bar |
| TJ-MS-15G | Φ24.0 | 1/4", 3/8" | 125 | 15g | 42 bar |
| TJ-MS-20G | Φ24.0 | 3/8", 1/2" | 140 | 20g | 45 bar |
| TJ-MS-30G | Φ28.5 | 3/8", 1/2" | 160 | 30g | 45 bar |
Rigorous verification procedures guaranteeing zero leakage and component lifecycle durability
Every component class undergoes extreme environment thermal cycle validation between -35°C and +75°C for 500 hours, followed by thermal shock trials from 10°C to 90°C to prove seam stability.
Drier housings and internal molecular sieves are processed inside high-efficiency drying ovens to drive out atmospheric humidity before hermetic seal packaging. This prevents desiccant saturation before installation.
Our automated line integrates helium mass spectrometer leak detectors. We pressurize casings up to test threshold values to eliminate manufacturing faults and micro-porosity at critical braze points.
Our quality management workflow is certified under GB/T19001-2016/ISO9001:2015 (Registration No.: 41325Q00065R0S). This guarantees traceability from raw copper pipe supply through to assembly packaging. We also maintain active UL, RoHS, and REACH environmental declarations, facilitating compliance for global manufacturers.
Customizing filter solutions for different industrial environments and system dimensions
Integrated into home refrigerators, freezers, and beverage dispensers. Optimized for quiet flow dynamics and low refrigerant charges.
Designed for supermarkets, distribution cold warehouses, and deep freeze loops operating continuously with heavy vibration profiles.
Engineered to withstand external engine bay heat, mechanical impact, and dynamic automotive oils (PAG/POE).
High-pressure copper casings built for commercial heat pump loops utilizing modern R32 and eco-friendly R290 refrigerants.
Our ongoing transition to industry 4.0 automated production standards
Expanded our core factory floor and established custom copper machining workshops to increase monthly production capacity.
Deployed the MES intelligent workshop management system, implementing digital monitoring for processing parameters.
Integrated CCD visual detection systems and automated helium mass leak validation across our assembly lines.
Explore our certified fabrication facility, precision testing labs, and assembly workshops
Technical guidance regarding design, installation, and component compatibility
High-grade connection accessories, split valves, and universal support components for commercial cooling systems
Taojun