Elastomeric roll insulation

Elastomeric roll insulation

Elastomeric rolled insulation (or generally closed-cell flexible insulations) was first introduced 50 years ago. During this time, elastomeric insulation has grown significantly in the variety of provided products. They have operate successfully in preventing the unwanted conversion of gas or steam to liquid and the loss of energy (heat transfer) in vicinity of extreme cold, air conditioning and cold consuming water transmission. Roll insulators are also used in a variety of applications, from hot water transmission to major mechanical equipment such as evaporative cooler, chillers, and air distributing equipment. Also, the after effect of these insulators in saving energy and natural resources is the reduction of greenhouse gases when energy is wasted, which is a very important factor in protecting the environment

General description

Elastomeric roll insulation products are usually made on the basis of a combination of polyvinyl chloride (PVC) and nitrile butadiene rubber (NBR) with a kind of blowing chemical. The main steps in the production process are mixing the base material, extrusion or forming and heating. During the heating phase, the elastomeric part of the product is decomposed with the help of induction welding and on the other hand, a significant amount of nitrogen gases is produced by decomposing the chemical blower

The vast majority of elastomeric products are based on a mixture of PVC / NBR rubber polymer. Standard elastomeric products contain PVC as well as other halogenated materials that increase the flammability of the product. Recently, a new class of elastomeric products has been introduced which are not PVC-based materials and eliminates potential problems with halogen-containing products, such as lethal smoke from burning products. Meanwhile, the available non-halogenated products on the market meet only 50% of the standard ASTM-E84 indicators related to fire-stop equipment function

Features of LINKRAN elastomeric roll insulation

• • Great flexibility
  • Low water vapor transmission (WVT of 0.1 perms) in
  • Heat conductivity (k) similar to other equivalent insulating materials (0.30 BTU-in. /hr.-sq. Ft. F) or less at 75ºF mean temperature
  • Low flammability, which meets the minimum building design requirements

  Other intrinsic properties of this polymer mixture include resistance to oil and ozone and a very good compatibility with adhesive coatings. Also, such insulators can be used in the temperature range of -70° to +120° Celsius

  Although all elastomeric products can share many similar properties, a wide range of alloy addition such as fillers, plasticizers, and preservatives can be added to the mixture in order to enhance the physical properties of the product

  Elastomeric roll insulation products are used as thermal insulation for insulating all types of surfaces such as HVAC’s ducts, tanks and containers, walls of installation devices, pipes of different sizes, internal and external walls of building constructions, etc. LINKRAN thermal insulation is produced in form of: simple, self-adhesive, protect black coated or Aluminum coated. LINKRAN elastomeric insulation adhesive can be used for attaching and installing elastomeric rolled insulation. Click to read and receive engineering information about tubular elastomeric insulation

Executive standards

In recent years, each manufacturer of elastomeric roll insulation has provided installation instruction based on the range of production of their products. The National Association of Insulation (NIA) has provided instructional videos on how to choose the right insulation and how to implement it properly. The American Society of Heating, Refrigerating and Air-Conditioning Engineers  (ASHRAE) and The National Fire Protection Association (NFPA) also provide instruction for using insulation products

Installing Elastomeric roll insulation

Proper installing is very important for proper operation and the entire system should be insulated against inlet and outlet air. Using simple installation techniques, the entire system can be easily insulated. All seams and longitudinal seams should be insulated with either solvent based adhesive, or compression adhesives, or any other method recommended by the manufacturer. Be. The adhesive should be applied to both surfaces, allowed to dry slightly, and then the firmly pressed pieced together. Insulation should also be applied around all nuts, 90° bends, connections, valves, and also at the end of the pipes to prevent entering ambient air into the system

When installing elastomeric roll insulation, the insulation roll should not be stretched. Stretching can cause two problems: first, the reduction in thickness, and second, it can lead to pre-tensioning in the insulation roll. To ensure proper insulation, all connections or joints should not be impacted, and therefore insulation should not be applied to equipment that has a high temperature during installation