Elastomeric Nitrile Rubber

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Product Code : 15

Product Specification

Elastomeric Nitrile Rubber

An elastomeric nitrile rubber foamed insulation that is produced in pre-formed sheet and pipe sections. It does not contain CFC or HCFC gasses and has an ozone depletion potential of zero.

It is a closed cell insulation which means that many thousands of tiny air bubbles are encapsulated within the material, each one complete and separate from the next one. These small cells of stationary air act like a vacuum by preventing convection currents. This means that the closed cells within the material produce a lightweight and flexible insulation with low thermal conductivity a major benefit of AR/Accoflex insulation.

However, the thermal conductivity value of fibrous insulation and partial cell material such as expanded polystyrene, is dependent on density. When the density of these materials is lowered, the ÃÂ¯?ÃÂ¬ÃÂ¯Ã¢âÂ¬ value is increased unlike nitrile rubber, where the value is virtually unaffected by density on account of its closed cell structure.

The efficiency of Nitrile Rubber insulation to prevent condensation and minimise heat gain over a time span, measured in years, is dependent upon the initial thermal conductivity and the effective performance of the vapour barrier - the purpose of which is to minimise the ingress of water vapour into the insulation - so that any change in the thermal conductivity value over a long period is very small.

Description
Flexible elastomeric pipe insulation. Ideal for window ACs, plumbing & Light Commercial use. It is designed for cost effective energy conservation, sweat control and easy installation. AR Accoflex also offers sound-deadening control for HVAC, refrigeration and plumbing applications.

Installation
Suppliesin tube form, and it is easy to snap on or sleeve over pipework for new or existing piping applications.
Technical Data

Average Physical Properties		Test Method
Density	70 to 80 kg/m³
Thermal Conductivity (W/m.K) Mean temp (0Ã‚ÂºC) Mean temp (40Ã‚ÂºC)	0.037 0.041	ASTM C 177 or C 518
Water vapor permeability wet cup perm-in [kg/(m.s.Pa)]	0.17 (2.47 x 10)	ASTM E 96 Procedure A
Flame & Smoke Ratings	25/50	ASTM E 96 Self Extinguishing
Water absorption, % by volume	0.2%	ASTM C 209
Ozone Resistance	Good
Temp. Range	- 40Ã‚ÂºC to +150Ã‚ÂºC
Length of sections, tubular form	6 feet (1.83 mts.)

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