Thermal Rubber Foam Insulation Tube for HVAC & Refrigeration Equipment
High-density closed cell rubber foam insulation tube specially designed for refrigeration and HVAC piping systems. Featuring low thermal conductivity, excellent waterproof, anti-sweat and flame-retardant performance. Flexible, durable and easy to cut and install, effectively prevents pipe condensation, reduces heat loss and improves energy efficiency for all cooling equipment.
Premium Closed Cell Rubber Foam Insulation Tube for Refrigeration & HVAC Piping
Our insulation tube is made of high-quality NBR/PVC blended rubber foam material with uniform and dense closed-cell structure. It is a professional thermal insulation and anti-condensation accessory widely used in refrigerators, freezers, air conditioners, cold storage and industrial cooling pipeline systems. With stable physical performance and long service life, it has become the preferred insulation solution for global refrigeration aftermarket and OEM supporting projects.
Excellent Thermal Insulation & Energy-Saving Performance
The independent closed-cell structure greatly reduces air and heat convection, effectively blocking external heat transfer and lowering cold loss inside the pipeline. It significantly improves the overall working efficiency of refrigeration and air conditioning systems, reduces compressor operating load, and achieves stable energy-saving effects for long-term continuous operation.
Powerful Anti-Condensation & Waterproof Ability
The foam material features low water absorption and excellent vapor barrier performance. It can completely isolate moisture in the air, prevent copper pipe sweating, dripping and pipeline corrosion caused by temperature difference. It keeps the piping system dry and stable, avoiding equipment failure and water damage in high-humidity working environments.
Flame Retardant & Safe Eco-Friendly Material
This insulation tube adopts enhanced flame-retardant formula with self-extinguishing and non-flame-spreading properties, meeting international HVAC fire safety standards. The material is non-toxic, odorless and environmentally friendly, with no harmful volatiles, suitable for indoor, commercial and enclosed engineering environments.
High Flexibility & Easy Installation
The rubber foam tube is soft, elastic and highly flexible, suitable for straight pipes, bent pipes and irregular pipeline layouts. It is lightweight and easy to cut, slit and wrap, greatly simplifying on-site construction procedures. Standard sizes and customized inner diameter, wall thickness and length are available to match all kinds of refrigeration copper pipes and HVAC pipelines.
Durable & Wide Application
Featuring strong aging resistance, oxidation resistance and structural stability, the insulation tube will not easily harden or deform after long-term use. It is widely applied in household refrigeration equipment, commercial display cabinets, central air conditioning systems, cold storage projects and industrial cooling units, suitable for global wholesale and export supporting.
Product Parameter Table
ID |
T=6mm 1/4’’ |
T=9mm 3/8’’ |
T=13mm 1/2’’ |
T=20mm 3/4’’ |
T=25mm 1’’ |
PC/CTN |
PC/CTN |
PC/CTN |
PC/CTN |
PC/CTN |
|
1/4’’(6mm) |
250 |
168 |
100 |
48 |
30 |
3/8’’(10mm) |
200 |
120 |
90 |
36 |
30 |
1/2’’(13mm) |
168 |
100 |
72 |
30 |
24 |
5/8’’(16mm) |
133 |
90 |
63 |
30 |
20 |
3/4’’(19mm) |
113 |
72 |
56 |
25 |
20 |
7/8’’(22mm) |
80 |
65 |
42 |
24 |
18 |
1’’(22mm) |
70 |
49 |
42 |
20 |
16 |
1-1/8’’(28mm) |
60 |
49 |
36 |
20 |
16 |
1-1/4’’(32mm) |
55 |
42 |
30 |
20 |
15 |
1-3/8’’(35mm) |
50 |
36 |
30 |
16 |
12 |
1-1/2’’(38mm) |
|
34 |
30 |
16 |
12 |
1-5/8’’(42mm) |
/ |
30 |
25 |
16 |
12 |
1-7/8’’(48mm) |
/ |
28 |
20 |
15 |
10 |
2’’(51mm) |
/ |
24 |
20 |
12 |
9 |
2-1/8’’(54mm) |
/ |
20 |
18 |
12 |
9 |
2-1/4’’(57mm) |
/ |
20 |
18 |
12 |
9 |
2-3/8’’（60mm） |
/ |
20 |
15 |
10 |
9 |
2-5/8’’(67mm) |
/ |
18 |
13 |
9 |
8 |
2-7/8’’(73mm) |
/ |
18 |
13 |
9 |
8 |
3’’(76mm) |
/ |
18 |
12 |
8 |
8 |
3-1/8’’(79mm) |
/ |
15 |
12 |
8 |
6 |
3-1/2’’(89mm) |
/ |
15 |
12 |
6 |
6 |
Item |
Unit |
Performance index |
Implemented standard |
|
Surface density |
Kg/mm³ |
≤80 |
GB/T6343 |
|
Burning performance |
—— |
Meet requirement |
GB/T2406 |
|
GB/T8627 | ||||
Grade B |
GB8624 |
|||
Meet requirement |
B1 |
|||
Smoke toxicity |
—— |
ZA₃ |
GB/T20285 |
|
Thermal conductivity |
-20℃ |
W/(m.k) |
≤0.031 |
GB/T10294 |
0℃ |
≤0.034 |
|||
40℃ |
≤0.037 |
|||
Water vapor permeability |
Water vapor permeabllity |
g/(m.s.Pa) |
≤1.96×10’’ |
GB/T17146 |
Moisture resistance |
≥10000 |
|||
Water absorption in vacuum |
％ |
≤8 |
GB/T17794 |
|
Dimension stability(105℃±3℃,7d) |
|
≤10 |
GB/T8811 |
|
Reboundrate after compression comoression rate 50％.72h |
％ |
≥70 |
GB/T16669 |
|
Aging resistance |
—— |
Slightly crumpling,no cracks,no pinholes,not deforming |
GB/16259 |
|
Temperature range |
℃ |
-40~105 |
GB/T17794 |
|
FAQ
Q1: What is insulation tube used for?
A: The closed cell insulation tube is mainly used for thermal preservation, anti-condensation and heat insulation of refrigeration and HVAC copper pipes. It effectively prevents pipe sweating, reduces cold loss and protects pipeline systems from moisture corrosion.
Q2: What material is your insulation tube made of?
A: It is made of high-quality NBR/PVC blended rubber foam with dense closed-cell structure. The material features low thermal conductivity, high flexibility, waterproof and flame-retardant performance for long-term stable use.
Q3: Why use closed cell foam insulation tube for refrigeration pipes?
A: Closed cell structure provides better vapor barrier and lower water absorption than open cell materials. It perfectly avoids condensation dripping and ensures stable heat insulation effect, which is essential for refrigeration and cooling pipeline systems.
Q4: Is the insulation tube flame retardant and safe?
A: Yes. All insulation tubes adopt professional flame-retardant formula with self-extinguishing function. It meets standard fire safety requirements for HVAC and refrigeration engineering, ensuring safe application in commercial and indoor environments.
Q5: Can you customize size, thickness and length?
A: Full customization is supported. We provide various inner diameters, wall thicknesses and tube lengths, and can produce special sizes according to customer pipeline parameters to match different refrigeration and air conditioning equipment.
Q6: Is it easy to install for pipe replacement?
A: Yes. The insulation tube is soft and flexible, easy to cut and slit for wrapping. It fits tightly on copper pipes and bent pipes, requiring no complicated tools, which greatly improves on-site installation efficiency.
Q7: What working temperature can the foam tube withstand?
A: Our rubber foam insulation tube supports wide temperature adaptation, stable for cold pipeline working environments, not easy to crack or deform under low temperature and high humidity conditions.
Q8: What is your packaging and shipping method?
A: Products are packed in standard export cartons with internal protection. Bulk orders adopt pallet reinforcement to prevent extrusion and deformation, suitable for long-distance sea freight and global export transportation.
High Efficiency Bundy Wire Tube Condenser for Refrigeration Cooling System
Thermal Insulation Foam Sheet for Refrigerator & Cooling Equipment
Digital Thermostat Temperature Controller with LED Display for Refrigerator Freezer HVAC Cooling System
Commercial Manual Stainless Steel Refrigerator Freezer Plastic Coated Wire Mesh Shelf and Durable Basket
ONLINE
EN