Wholesale Industrial Rubber Foam Insulation Pipe Manufacturer, Factory

Product Description

Kingflex thermal insulation pipe/tube uses NBR(nitrile-butadiene rubber) as main raw material for foaming and become a fully closed cell of flexible rubber insulation material , without any fiber material like HCHO and CFCs which are bad for ozonosphere. Suitable for thermal insulation of various pipes and equipment (-50℃-110℃).

  • 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)
Kingflex Technical Data
Property Unit Value Test Method
Temperature range °C (-50 - 110) GB/T 17794-1999
Density range Kg/m3 45-65Kg/m3 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) ASTM C 518
≤0.032 (0°C)
≤0.036 (40°C)
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 21
Ozone resistance Good GB/T 7762-1987
Resistance to U.V. and weather Good ASTM G23
Kingflex insulation pipe product
Kingflex insulation pipe close up

Excellent performance

Kingflex insulation pipe is made of NBR and PVC. It doesn't contain fibrous dust, benzaldehyde and chlorofluorocarbons. Moreover, it has low conductivity & heat conductivity, good moisture resistance, and fireproof.

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Widely used

The insulated pipe can be widely used in cooling unit and equipment of central air conditioning, freezing water pipe, condensing water pipe, air ducts, hot-water pipe and so on.

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Easily to be installed

The insulated pipe not only can be easily installed with the new pipeline, but also can be used in the existing pipeline. The only thing you need to do is to cut it, then glue it. Moreover, it doesn't have negative influence on the performance of the insulated pipe.

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Delivery on time

The products are in stock and the quantity of supplying is large.

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Personal service

We can offer the service according to the customers' requests.

Kingflex insulation installation
Kingflex technical specification
Kingflex product storage
Frequently Asked Questions
What materials are used in Kingflex thermal insulation pipes?
Kingflex insulation pipes use NBR (nitrile-butadiene rubber) and PVC as the main raw materials, which are foamed to create a fully closed-cell flexible rubber structure. They contain no fibrous dust, HCHO, or CFCs.
What is the working temperature range for this insulation?
This insulation material is highly durable and suitable for various pipes and equipment operating at temperature ranges from -50℃ to 110℃.
Are Kingflex insulation pipes fire-resistant?
Yes, they are fireproof. They achieve Class 0 & Class 1 fire ratings according to BS 476 Part 6 & Part 7, and have a Flame Spread and Smoke Developed Index of 25/50 under ASTM E 84 testing.
Is this product easy to install on existing pipe setups?
Absolutely. The insulation pipe can be easily installed on both new and existing pipelines. You simply need to cut and glue it, which does not negatively affect the thermal performance of the pipe.
What sizes and thicknesses are available?
They are available in nominal wall thicknesses of 1/4”, 3/8″, 1/2″, 3/4″, 1″, 1-1/4”, 1-1/2″, and 2” (6mm up to 50mm) and standard lengths of 6ft (1.83m) or 6.2ft (2m).

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