China Foam Rubber Foam Insulation Tube Suppliers, Factories

Kingflex NBR/PVC INSULATION TUBE are used for the heat-insulating and heat-preservation of shell of big tanks and piping in the construction,business and industry,heat insulation of air ducts of central air conditioners, heat insulation of joint pipes of household air conditioners and automobile air conditioners. ●nominal wall thicknesses of 1/4”, 3/8″, 1/2″, 3/4″,1″, 1-1/4”, 1-1/2″ and 2” (6, 9, 13, 19, 25 , 32, 40 and 50mm) ●Standard Length with 6ft (1.83m) or 6.2ft(2m).

Product Description

Technical Data
Property Unit Value Test Method
Temperature range °C -50 to 110 GB/T 17794-1999
Density range Kg/m³ 45-65 ASTM D1667
Water vapor permeability Kg/(m.s.pa) ≤0.91×10⁻¹³ DIN 52 615 / BS 4370 Part 2 1973
μ - ≥10000 -
Thermal Conductivity W/(m.k) ≤0.030 (-20°C)
≤0.032 (0°C)
≤0.036 (40°C)
ASTM C 518
Fire Rating - Class 0 & Class 1 BS 476 Part 6 & Part 7
Flame Spread and Smoke Developed Index - 25/50 ASTM E 84
Oxygen Index - ≥36 GB/T 2406, ISO4589
Water Absorption, % by Volume % 20% ASTM C 209
Dimension Stability - ≤5 ASTM C534
Fungi resistance - Good ASTM G21
Ozone resistance - Good GB/T 7762-1987
Resistance to U.V. and weather - Good ASTM G23

Excellent Performance

The insulated pipe is made of NBR and PVC. It does not contain fibrous dust, benzaldehyde, and chlorofluorocarbons. Moreover, it features low conductivity, good moisture resistance, and is fireproof.

Widely Used

Perfect for cooling units and central air conditioning equipment, freezing water pipes, condensing water pipes, air ducts, and hot-water pipes.

Easily Installed

Can be easily installed on both new and existing pipelines. Simply cut and glue them. Installation does not affect the performance of the insulated pipe.

Complete Models

Available wall thicknesses range from 9mm to 50mm, and inside diameters range from 6mm to 89mm, satisfying diverse project requirements.

Delivery On Time

Products are kept in stock with a large supplying capability, ensuring prompt dispatch and delivery for your project deadlines.

Personal Service

We offer customized and dedicated services tailored exactly to customer requests and specific project specifications.

Thermal insulation pipe production and quality control
Global Exhibition Presence

We have attended domestic and international exhibitions, including CR exhibitions in Beijing and Shanghai annually, as well as Canton Fairs and industry exhibitions in America, Brazil, Austria, Singapore, Korea, India, Japan, and Kazakhstan (Almaty). We connect directly with clients to offer professional insights and customized technical advice.

Exhibition stand displaying insulation products
Customer discussions at the global exhibition
Frequently Asked Questions (FAQ)
What materials are the insulated pipes made of?

The insulation pipes are constructed from high-quality NBR (Nitrile Butadiene Rubber) and PVC (Polyvinyl Chloride). They are free from fibrous dust, benzaldehyde, and chlorofluorocarbons.

What is the temperature range for these insulated pipes?

The operational temperature range for our insulated pipes spans from -50°C to 110°C, tested in compliance with the GB/T 17794-1999 standard.

What are the fire safety ratings of this insulation material?

The material is highly fire-resistant, carrying a Class 0 & Class 1 Fire Rating evaluated under BS 476 Part 6 & 7. Additionally, it has a Flame Spread and Smoke Developed Index of 25/50 according to ASTM E 84.

Where can these insulated pipes be applied?

They are designed for a variety of cooling and heating systems, including central air conditioning units, freezing water pipes, condensing water pipes, air ducts, and hot-water pipelines.

What specifications and sizes are available for purchase?

We supply insulated pipes in wall thicknesses ranging from 9mm to 50mm, and with inside diameters ranging from 6mm to 89mm to accommodate various standard piping systems.

Is the installation process complex?

No, the installation is straightforward. The pipes can be cut to fit and glued directly onto new or existing configurations without degrading the material's thermal and moisture insulation performance.

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