Explore our top-selling engineering parts and protective insulation materials utilized by leading HVAC brands worldwide.
Within complex heating, ventilation, and air conditioning (HVAC) structures, the integrity of refrigerant piping determines systemic efficiency. Air Conditioner Hose Tape (commonly known as pipeline insulation wrapping tape or non-adhesive PVC tie tape) is not merely a superficial bundling wrap; it serves as a critical engineered layer that shields elastomeric insulation from mechanical, chemical, and atmospheric degradation.
Without high-grade wrapping tape, direct exposure of insulated linesets to ultraviolet (UV) radiation, humidity, ambient ozone, and physical friction leads to rapid material degradation. This results in thermal bridging, moisture ingress, compressor strain, and localized refrigerant leaks. High-performance tape acts as a barrier, extending system lifespans in critical applications.
Ningbo Taojun Refrigeration Equipment Co., Ltd. addresses these industrial hazards. We design and manufacture specialized wrap configurations that offer optimal tensile modulus, heat deflection, and environmental resistance, ensuring full thermal performance from compressors to evaportator coils.
Founded in 1988 as the Xiangshan Refrigeration Accessories Factory of Zhejiang University, Ningbo Taojun Refrigeration Equipment Co., Ltd. has developed over three decades into a leading integrated enterprise. In 2021, Taojun was recognized as a National High-Tech Enterprise, acknowledging our technological innovation in refrigeration parts manufacturing.
Operating out of our advanced plant in Xiangshan, Ningbo, our product range includes copper filter driers, check valves, air conditioning valves, finned-tube condensers, brass connections, and AC hose wrapping ties. By combining our academic roots with industrial manufacturing, we serve major brands like Haier, Midea, Gree, Whirlpool, Electrolux, and Huarui.
We work to ensure that all critical components, including access valves, copper elbows, and wrapping tapes, meet strict performance metrics to withstand demanding service environments.
Our engineering, quality metrics, and global distribution network define our industry status.
We select high-grade plasticizers and UV-stabilizers to manufacture protective wrap systems designed to survive extreme environments.
| Performance Characteristic | Standard Non-Adhesive Wrap Spec | Heavy-Duty Adhesive Shield Spec | Compliance Test Methods |
|---|---|---|---|
| Base Polymer Composition | Premium homopolymer virgin PVC (No recycled fillers) | Cross-linked PE backing with acrylic compound | FTIR Spectrometry Analysis |
| Tensile Strength at Break | ≥ 14.5 MPa | ≥ 18.0 MPa | ASTM D882 Standard |
| Elongation Capacity | ≥ 180% | ≥ 220% | ASTM D882 Standard |
| Thermal Endurance Spectrum | -35°C to +80°C continuous service | -45°C to +105°C continuous service | 500-hour Environmental Chamber Test |
| UV Photodegradation Halflife | No cracking or scaling at 1,000 hours | No cracking at 2,500 hours | ASTM G154 (QUV Accelerated Aging) |
| Moisture Ingress Coefficient | < 0.15 g/m²·24h | < 0.08 g/m²·24h | ASTM E96 Desiccant Protocol |
| Flame Retardancy | Pass (Self-extinguishing in < 3s) | UL 510 Certified Flame Retardant | UL 94 Vertical Burning / UL 510 |
Refrigeration installations must align with local electrical, HVAC, and building safety codes. We manufacture products to meet international certification requirements.
Our wrapping systems are free from restricted phthalates (DEHP, BBP, DBP, DIBP) and SVHCs, meeting the regulatory requirements for public works and multi-family residential projects across EU nations.
For installations utilizing air plenums, our wraps comply with UL 510 and UL 94 standards, minimizing flame progression and toxic smoke generation in high-density building zones.
Our wraps undergo thermal cyclic testing up to +85°C, ensuring stability under intense solar radiation in desert climates and preventing adhesive degradation or vinyl embrittlement.
An HVAC system operates as a unified thermodynamic loop. If any component fails—whether a copper U-bend fitting, a service stop valve, or the protective tape guarding the lineset—overall system efficiency declines. For example, ambient moisture entering split-AC insulation leads to condensation, causing heat leakage that forces the compressor to work harder.
This process speeds up acid formation inside the cooling circuit, which can damage the system. To prevent this, Taojun designs and manufactures high-capacity copper filter driers with 3A molecular sieves to neutralize internal contaminants. At the same time, our weatherproofing wrapping tapes shield the external linesets, preventing early system failure.
By producing both internal flow-control components and external weatherproofing systems, Taojun provides comprehensive protection for the entire HVAC installation.
Our ISO 9001-certified production facility utilizes advanced equipment and automated monitoring to ensure consistent product quality.
We use high-precision calenders to maintain thickness tolerances within ±0.01mm, eliminating structural weak spots that could lead to tearing during high-tension wrapping.
Our quality assurance laboratory conducts thermal shock testing from -35°C to +75°C for over 500 hours, ensuring the vinyl remains flexible without cracking or peeling under stress.
From raw PVC resin compound selection to final roll-cutting and pallet packaging, every batch is logged in our Manufacturing Execution System, providing full traceability for commercial audits.
Our commitment to consistent manufacturing quality is backed by our official ISO registration (No. 41325Q00065R0S). This certification covers the entire scope of our design, production, and testing processes for refrigeration parts and accessories.
To support global supply chains, our factory undergoes yearly audits verified by international registrars. For procurement managers, this ensures structured quality management, reliable deliveries, and a documented resolution process for any issues.
From heavy commercial cooling lines to small automotive air conditioning hookups, our wraps are adapted to meet varying demands.
Provides weatherproofing for external refrigeration line sets, shielding elastomeric foam insulation from avian nesting activity, rodent bites, and UV degradation.
Designed for long-term rooftop exposure. Protects dual-pipe linesets against direct sunlight, temperature variations, and high wind conditions.
Remains flexible at low temperatures down to -35°C, preventing embrittlement, cracking, or peeling in sub-zero industrial storage settings.
For procurement managers at HVAC distributors, high-volume sourcing requires balancing unit economics, quality control, and supply chain reliability.
We provide full batch transparency. Many budget-grade tapes use recycled plasticizers, which can lead to quick embrittlement and peeling when exposed to outdoor conditions. Taojun uses only virgin polymer raw materials with trace stabilizers, maintaining consistent quality across multi-ton orders.
We customize tape thickness (0.11mm to 0.22mm), roll length, width, and color configurations to match specific regional building standards or branding requirements. Standard colors include neutral white, slate grey, and black.
Located near the Ningbo shipping port, we offer efficient cargo consolidation for major accounts. We package products to withstand sea transit, and each shipment is backed by our customer service support.
As green building certifications (like LEED and BREEAM) grow more common, global projects require products with low VOC profiles. Our non-adhesive vinyl wrap designs contain no VOC-emitting solvents, helping projects meet environmental standards.
Find answers to technical and logistical questions about our HVAC wrapping tape systems.
Non-adhesive wrapping tape relies on physical tension and stretch to seal the line, preventing adhesive dry-out in extreme temperatures. Adhesive shield tape provides immediate, stable positioning on complex vertical routes or tight elbows where slippage can happen.
Virgin PVC homopolymer without low-cost chalk or recycled fillers retains its plasticizer compounds longer under solar heat. This prevent the tape from becoming brittle, cracking, or flaking, ensuring long-term protection.
Yes. All raw materials are verified by third-party testing labs to ensure they contain no restricted heavy metals or phthalates, allowing them to meet environmental standards for import into the European Union and North America.
Yes, we provide full OEM and ODM services. We can print logos, custom layout lengths, or color codes on the tape backing or inner paper cores to fit your brand identity.
Standard container orders are typically manufactured, verified, and loaded within 20 to 30 business days, depending on specific customization needs. Our proximity to the Ningbo port helps reduce domestic shipping times.
Browse our extended product line of capillary coiling tubes, stopping service valves, and specialized brazing alloys.
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