China Low Thermal Rubber Foam Insulation Pipe Suppliers, Factories

Closed Cell Foam Tube Insulation is manufactured using rubber as the main raw material. It contains no fiber, non-formaldehyde, and non-CFC or other ozone-depleting refrigerants. It can be directly exposed to the air without harming human health.

The standard product is black and is divided into two major categories: rubber foam insulation sheets and insulation pipes. It is widely applied in central air-conditioning system water pipelines, ducts, hot and cold water pipelines, mine pipeline systems, refrigeration systems, and HVAC systems.

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).

Technical Specification

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

Closed Cell Foam Tube Insulation Details 1

Closed Cell Foam Tube Insulation Details 2

Closed Cell Foam Tube Insulation Details 3

Quality Control System

A sound and strict Quality Control System is enforced during production. Every order is meticulously checked from the raw material selection to the final packaged product. To ensure consistent and stable performance, testing standards are established with requirements that exceed standard domestic and international regulations.

Professional Logistics and Shipping

Benefiting from a solid 10-year cooperative relationship with professional forwarders, the shipping process ensures reliable and efficient handling. The most competitive sea freight rates are continuously secured to minimize overall shipping costs.

Frequently Asked Questions (FAQ)

What materials are used to make the Closed Cell Foam Tube Insulation?

The insulation is made using rubber as the primary raw material. It contains no fiber, is non-formaldehyde, and is free of CFCs and other ozone-depleting refrigerants. It can safely be directly exposed to the air.

What are the primary applications for this insulation material?

It is widely used in central air-conditioning water pipelines, air ducts, hot and cold water pipelines, mine pipeline systems, refrigeration systems, and HVAC systems.

What thicknesses and lengths are available for the insulation tubes?

The insulation tubes come in nominal wall thicknesses of 1/4”, 3/8″, 1/2″, 3/4″, 1″, 1-1/4”, 1-1/2″, and 2” (ranging from 6mm to 50mm). The standard length is either 6ft (1.83m) or 6.2ft (2m).

What is the fire rating and temperature limit of this product?

The product has a fire rating of Class 0 & Class 1 (tested under BS 476 Part 6 & 7) and a Flame Spread / Smoke Developed Index of 25/50 (ASTM E 84). It operates within a temperature range of -50°C to 110°C.

How is the quality of the insulation guaranteed during production?

A strict Quality Control System checks every order from raw material selection down to the final product. Internal testing standards are set higher than regular domestic and overseas requirements to maintain consistent high quality.

How are shipping and sea freight costs optimized?

Through a professional forwarding partnership spanning over 10 years, highly competitive sea freight rates are provided to help lower overall shipping and transportation costs.