کاتالوگ

Ducts air transfer as an important commodity in the HVAC industry is that over time due to the need for insulation: sound reduction, moisture resistance , increase the efficiency and etc …  of it is created

  This need led to develop this part of the HVAC industry, resulting in the production of pre-insulated products such as ducts or use different insulation on the metal ducts.

Pre-insulated ducts, produce with different matrial , including : polyurethane, phenolic, flexible, fiberglass duct board and etc. can be named.

It should be noted that the duct of compressed fiberglass (FIBER GLASS DUCT) with nearly half a century of experience is longest pre-insulated duct in the world.

  Although appeared, this type of duct is new (in Iran), but more than 50 years ago, was designed and produced for the first time in the United States of amrica and then in other countries, especially in Europe, the growth and spread, and in many  design software such as DUCT SIZER the option to select the duct material was introduced.

  It is worth noting in Iran, these duct 40 years ago by (JM) JOHNS MANVILLE  cooperation with Iran glass wool co. on several projects such as: A.S.P towers, residential towers Khayam, Hafez, Saadi, and as well as Institute for Humanities has been used.

Now, after nearly 40 years this type of pre-insulated air duct re-brand (GREEN DUCT) will be released in Iran.