Ningguo Kingcool Import and Export Co., Ltd is a China-based supplier of air-conditioner and refrigeration accessories, combining industry and trade with a focus on metalized polypropylene film capacitors and a broad appliance parts range. Our Air-Conditioner Parts-Insulation tuber Manufacturers range covers PE-jacketed insulation tuber used to protect refrigerant lines, condensate routes and electrical runs in split, window and packaged air-conditioning systems.
What We Supply in the Insulation Tuber Range
Our insulation tuber is a closed-cell or PE-outer-layer tube supplied for air-conditioner copper pipe insulation, condensate drain protection and low-temperature line wrapping. The product is built around a PE outer layer that provides high strength and toughness, resistance to tearing during installation, and a clean surface that accepts tape, clamps and cable ties without cracking.
We supply this category as part of a one-stop appliance parts programme. Buyers working on air-conditioner assembly, after-sales service or refrigeration installation can combine insulation tuber with other items from our Air-Conditioner Parts range, including compressors, motors, sensors and control components, in a single order.
Where Insulation Tuber Fits in Air-Conditioning Systems
Insulation tuber is used wherever a refrigerant or water line must be separated from ambient air, from a wall surface or from another pipe. In split systems it wraps the interconnecting copper pair between indoor and outdoor units. In window and packaged units it protects capillary and suction lines inside the chassis. In refrigeration and cold-room work it limits condensation on low-temperature suction lines.
- Split and multi-split systems: interconnecting pipe insulation, drain hose wrapping, wall-penetration protection.
- Window and portable units: internal line separation, vibration isolation between pipe and cabinet.
- Refrigeration cabinets and cold rooms: suction-line insulation to control condensation and frost.
- Service and repair: replacement insulation for re-piped or re-routed lines during maintenance.
Material and Construction Options
The insulation tuber we offer is built around a PE outer skin over an insulating core. The PE layer is selected for strength and toughness, so the tube resists abrasion when pulled through walls and holds its shape when bent around corners. The core is chosen to match the thermal duty of the line: standard closed-cell foam for normal air-conditioning, and denser or thicker sections where condensation control is critical.
| Construction Element | Typical Choice | Application Fit |
|---|---|---|
| Outer jacket | PE film, high strength and toughness | General HVAC pipe protection, service replacement |
| Insulating core | Closed-cell foam, standard or high density | Condensation control on cold lines |
| Wall thickness | Matched to pipe OD and temperature | Suction lines, liquid lines, drain lines |
| Length and packing | Coil or straight length, bulk or retail pack | OEM lines, distributor stock, service kits |
Specifications That Drive Selection
Insulation tuber is specified by the pipe it must cover and the environment it must survive. The main variables are inner diameter, wall thickness, length, core density and outer jacket grade. For air-conditioning work, the inner diameter is normally matched to the copper tube outside diameter so the insulation grips the pipe without gaps that would allow air movement and condensation.
- Inner diameter: matched to copper tube OD, typically from small capillary sizes up to main suction lines.
- Wall thickness: selected for the temperature difference between line and ambient.
- Core density: affects thermal resistance, compression recovery and weight.
- Outer jacket: PE layer chosen for toughness, UV exposure during storage and handling.
- Temperature range: confirmed against the refrigerant line operating condition.
Installation and Handling Notes
Insulation tuber is installed after the copper line is formed and pressure-tested, so the tube is not damaged by brazing heat or flaring tools. Joints between lengths are sealed with compatible tape or adhesive to keep moisture out of the insulation gap. Where the line passes through a wall, the tuber is sleeved or capped to prevent the PE jacket from being cut by masonry edges.
For outdoor runs, the PE outer layer protects the core from abrasion and handling damage. Clamps and supports should be sized to the insulated outside diameter so the tube is not compressed, which would reduce thermal performance and create a path for condensation.
Quality Control and Order Documentation
Our capacitor production is supported by high-precision slitting and winding equipment and testing equipment, and the same quality discipline is applied to the appliance parts we supply. For insulation tuber orders we confirm the construction, dimensions and packing against the agreed specification before shipment, and we can supply the product data needed for incoming inspection.
Because we operate as an agent for air-conditioner and refrigerator accessories, insulation tuber can be combined with other categories in our PRODUCT range. This reduces the number of suppliers a project team has to coordinate and keeps documentation consistent across the order.
Information We Use to Configure Your Solution
To prepare a suitable insulation tuber proposal, we work from the line data and the commercial requirements of the project. The more precisely the working point is defined, the more accurately we can match the tube to the application.
| Project Input | Why We Need It |
|---|---|
| Copper tube outside diameter | Sets the inner diameter so the tuber grips the pipe correctly |
| Line temperature and ambient | Determines wall thickness and core density |
| Indoor or outdoor routing | Affects jacket grade and UV or abrasion requirements |
| Length per coil or piece | Matches installation method and packing format |
| Order quantity and packing | Bulk, retail or OEM pack, and carton marking |
| Destination and documentation | Export packing, labelling and shipping documents |
Related Air-Conditioner Parts We Supply
Insulation tuber is one item in a wider air-conditioner parts programme. Project teams often combine it with the following categories from our range:
- Compressor units for split, window and packaged systems.
- Indoor And Outdoor Air Conditioning Motor assemblies for fan and blower drives.
- Charging Valve & Capillary & Wave Tube components for refrigerant circuits.
Frequently Asked Questions
What is air-conditioner insulation tuber used for?
It wraps refrigerant lines, condensate drains and other pipework to reduce heat transfer and prevent condensation. The PE outer layer protects the insulating core during installation and service.
How do I choose the right inner diameter?
Match the inner diameter to the copper tube outside diameter. A close fit prevents air gaps that would allow moisture to collect between the pipe and the insulation.
Can insulation tuber be supplied with other air-conditioner parts?
Yes. We supply insulation tuber as part of a one-stop appliance parts range, so it can be ordered together with compressors, motors, sensors and control components.
What information is needed for a quotation?
Pipe outside diameter, line temperature, indoor or outdoor routing, required length per coil, order quantity and packing format. Destination and documentation requirements complete the picture.
Is the insulation tuber suitable for refrigeration lines?
Yes, where the wall thickness and core density are matched to the lower line temperature. For cold-room and cabinet work we confirm the construction against the operating condition before quoting.
