{"id":45439,"date":"2022-12-01T16:05:54","date_gmt":"2022-12-01T09:05:54","guid":{"rendered":"https:\/\/3t-insulation.com\/armaflex-class-1-black-rubber-insulation-roll-type\/"},"modified":"2022-12-01T16:05:54","modified_gmt":"2022-12-01T08:05:54","slug":"armaflex-class-1-black-rubber-insulation-roll-type","status":"publish","type":"product","link":"https:\/\/3t-insulation.com\/en\/product\/armaflex-class-1-black-rubber-insulation-roll-type\/","title":{"rendered":"ArmaFlex Class 1 Black Rubber Insulation Roll Type"},"content":{"rendered":"

Operating temperature of black rubber insulation<\/h3>\n

Air conditioning pipe insulation or Armaflex Class1 black rubber insulation<\/a> is a synthetic NBR rubber insulation with an operating temperature range of -50 to 105 degrees Celsius. With its low temperature operating range, black rubber insulation is commonly used in cooling systems such as air conditioning, cold water pipes, or freezer rooms.<\/p>\n

\"Valves<\/a>

Black rubber insulation is mostly used in refrigeration applications<\/p><\/div>\n

Thermal Conductivity<\/h3>\n

In terms of energy properties, black rubber insulation is globally recognized as an excellent air conditioning pipe insulation, with a very low thermal conductivity of 0.032 – 0.039 [W\/m.K]<\/p>\n

Due to the properties of Armaflex Class 1 NBR rubber material, if you observe the cells of the black rubber, you’ll see that each cell is the same size. This indicates that every cell has the same properties in terms of heat resistance, vapor barrier, flexibility, and even rubber color.<\/p>\n

The thermal conductivity (K-Value) of Armaflex Class1 air conditioning pipe insulation is tested by world-class testing organizations: ASTM (American Society for Testing and Materials), ISO (International Organization for Standardization), and GB (Guobiao)<\/p>\n

Table of thermal conductivity values at different temperatures<\/p>\n\n\n\n\n
Temperature (\u00b0C)<\/td>\n-20<\/td>\n0<\/td>\n20<\/td>\n40<\/td>\n<\/tr>\n
Thermal conductivity (W\/m.K)<\/td>\n0.032<\/td>\n0.034<\/td>\n0.036<\/td>\n0.039<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Water Vapor diffusion resistance<\/h3>\n

The ability to resist water vapor, or simply put, how much water vapor can pass through the insulation material. If a lot of water vapor can penetrate, it will cause moisture inside the rubber and lead to rust, which can further cause problems with Corrosion Under Insulation (CUI).<\/p>\n

\"Pipe<\/a>

Corrosion under insulation damages pipe systems<\/p><\/div>\n

As we know, black rubber insulation has a closed-cell structure that allows very little water vapor to pass through. To confirm this, we rely on testing standards.<\/p>\n

Before we can determine if our insulation is truly effective, we need to understand the “Water Vapor diffusion resistance factor” or “mu value <\/span>“. The higher this value, the less water vapor can pass through the material. For reference, brick has a \u03bc = 14.28, concrete slab has \u03bc = 76, stainless steel sheet has \u03bc = 1000, while Armaflex Class1 black rubber insulation has \u03bc = 10,000<\/p>\n

\"WATER<\/a>

Image showing water vapor resistance of concrete, brick, and black rubber insulation<\/p><\/div>\n

This value is tested by the European Standard (EN) organization using standards DIN EN 13469 (test standard for thermal insulation products for building equipment and industrial installations – determination of water vapor transmission properties of preformed pipe insulation) and DIN EN 12086 (thermal insulating products for building applications – determination of water vapor transmission properties).<\/p>\n

Fire Performance and Approvals<\/h3>\n

BS 476 Part 7<\/h4>\n

Materials used in buildings are quite serious about fire spread. Insulation materials for air conditioning pipes that spread or catch fire are prohibited in large buildings or high-rise structures because fire-spreading materials make fire control difficult and allow fires to spread quickly throughout the building. The most common standard is BS 476 Part 7, which is a standard for testing material fire spread. Thermal insulation materials with a Class 1 code must pass the BS 476 Part 7 standard.<\/p>\n

\"BS476<\/a>

Testing according to BS 476 Part 7 standard Source – Armacell Thailand<\/p><\/div>\n

FM Approval<\/h4>\n

The fire prevention capability of Armaflex Class1 is quite special, as all types of Armacell black rubber insulation are FM Approved. This is a standard for testing air conditioning pipe insulation in real conditions, not just burning material samples.<\/p>\n

FM Approved is created by a group of insurance companies that certify products that pass fire-related tests. For black rubber pipe insulation, FM conducts tests by covering pipes with the insulation and measuring the amount of fire spread. If the fire spread does not exceed the specified range, it passes the FM standard. Another advantage of obtaining FM Approval is reduced insurance premiums. As mentioned, FM is an organization formed by insurance companies, so using FM Approved products results in lower insurance premiums.<\/p>\n

\"ARMACELL<\/a>

FM Approved standard testing Source – Armacell Thailand<\/p><\/div>\n

UL 94<\/h4>\n

The UL 94 standard is used to test plastic materials for flammability and flame spread. It classifies the flammability and flame spread from the lowest level (least flame retardant) to the highest level (most flame retardant) as follows:<\/p>\n