Below are categories for refrigerant pipes, hot and cold water pipes, water tanks, outdoor weather resistant pipes, and high-temperature pipelines, including materials, advantages and disadvantages, applicable locations, and specifications, for your convenience in distinguishing and selecting.

1、 Rubber insulation pipe (B1 grade closed cell rubber, most commonly used for household use)

Belonging to closed cell rubber foam material, versatile for air conditioning and solar water pipes

1. Advantages

The closed cell structure is waterproof and non absorbent, soft and easy to bend, with built-in sound insulation, flame retardant B1, and resistance to -50~105 ℃. It is easy to install and can be directly fitted onto the pipeline in an open style.

2. Disadvantages

Long term outdoor exposure can cause aging and brittleness, so it is necessary to wrap the outer layer with aluminum foil tape; The upper limit of high temperature resistance is generally not suitable for temperatures exceeding 110 ℃.

3. Applicable

Copper pipes for air conditioning, condensate drainage pipes, solar hot and cold water pipes, and outer insulation for heat tracing belts

4. Common thickness

Indoor: 20mm; Outdoor rooftop: 30-40mm; Severe cold anti freezing: 50mm

2、 Polyurethane foam (PU foam, main insulation for water tanks)

Divided into two types: hard prefabricated insulation layer and on-site foaming spray

1. Advantages

The insulation coefficient is top-notch among all materials, with hard compression resistance, waterproofing, and high temperature resistance; Solar thermal storage water tank comes standard with the factory.

2. Disadvantages

The texture is hard and cannot be bent, making it impossible to fit into a bent pipe; The on-site foaming operation is troublesome.

3. Applicable

Solar thermal storage water tank, air energy water tank, large thermal storage water tank; Filling of pipeline joint gaps.

3、 Glass wool (fiberglass wool, central air conditioning ducts, high-temperature pipelines)

Fiberglass filament insulation material

1. Advantages

High temperature resistance up to 300 ℃, affordable price, A-level fire resistance; Suitable for high-temperature hot water pipelines and air ducts.

2. Disadvantages

When encountering water insulation failure or fiber sticking, aluminum foil outer protection must be used; Easy to absorb water and moisture.

3. Applicable

Central air conditioning ducts, large engineering high-temperature hot water pipelines, industrial pipeline insulation, and home decoration and household water pipes are not recommended.

4、 Rock wool insulation pipe shell

Basalt high-temperature refractory insulation material

1. Advantages

A-level fire protection, high temperature resistance up to 600 ℃, with the strongest high temperature resistance performance.

2. Disadvantages

Afraid of water, heavy, and fibrous skin irritation, waterproof shells must be made outdoors.

3. Applicable

High temperature collection circulation pipelines and large commercial solar high-temperature pipelines are not required for ordinary household use.

5、 Pearl cotton (EPE polyethylene foam)

1. Advantages

Soft texture and affordable.

2. Disadvantages

Not resistant to high temperatures, flammable, prone to aging outdoors, and poor insulation performance.

3. Applicable

Only temporary indoor packages are allowed, and long-term use of outdoor, hot water pipes, and air conditioning refrigerant pipes is strictly prohibited.

6、 Outer protective material (essential for all outdoor insulation)

1. Aluminum foil tape

The most commonly used are reflective UV rays, sun protection, waterproof, and fixed insulation pipes. All outdoor rubber insulation outer layers must be fully wrapped and wrapped.

2. Aluminum foil fiberglass cloth

Long distance pipelines on the roof, instead of tape, are wrapped as a whole, with longer aging resistance and lifespan.

3. PVC outer casing

Hard plastic protective pipe, outdoor engineering pipeline, waterproof and anti-collision.

Quick Material Selection Comparison Table

|Thermal insulation material | Temperature resistance | Waterproof | Fireproof | Main uses|

|B1 rubber insulation pipe | -50~105 ℃ | Excellent | B1 flame retardant | Household air conditioning copper pipe, solar cold water pipe|

|Polyurethane foam | -30~120 ℃ | Excellent | B2 | Solar water tank insulation|

|Glass wool | ≤ 300 ℃ | Poor | Grade A | Central air conditioning ducts, engineering high-temperature ducts|

|Rock wool | ≤ 600 ℃ | Poor | Grade A | Commercial high-temperature solar energy circulation pipeline|

Purchase Tips

1. Priority should be given to using closed cell B1 rubber for household use, which is compatible with water pipes and air conditioners;

2. As long as the pipeline is exposed on the roof, the outer insulation layer must be protected with aluminum foil;

3. Water pipes in cold regions: double layered combination of rubber insulation pipe and anti freezing heat tracing tape.

Do you need me to also compile a list of market prices for various materials and key points for avoiding pitfalls in purchasing?

Shandong Huaneng Insulation Materials Co., Ltd. is a pipeline insulation manufacturer in Linyi. As an integrated insulation and decoration manufacturer in Shandong, our main products include integrated insulation and decoration, pipeline insulation, exterior wall insulation materials, extruded polystyrene board, thermosetting polystyrene board, and rubber insulation. If you need it, you can contact us by phone.

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