Pre-insulated Duct By Green Foam Insulation Material Co., Ltd.

We are the largest manufacturer of Pre-insulated Duct in China. We also produce Phenolic, PU & PIR Foam insulation materials. Our factory is approved by ISO 9001:2008.
Phenolic Foam Pre-insulated HVAC Duct is an excellent alternative to traditional galvanized Iron(sheet metal) ductwork and is ideal for specifications where space or weight is restricted. Compared with heavy galvanized sheet metal ducting that requires a second step to its installation process to both vapour seal and thermally insulate the ductwork, Phenolic foam air duct offers a high performance, lightweight and robust ductwork system that requires only a single fix installation process. This not only makes it a high speed operation for projects on which time is critical but also provides the advantage of a considerable saving in cost and space. It can make a saving of over 20% on operating cost over a 30 year life.
The duct is fabricated from Phenolic Foam Pre-insulated Duct Panels and Accessories by a set of special tools. The Panels consist of 20mm thickness phenolic foam insulation faced on both sides with 80micron thickness aluminum foil, or inside with 80micron thickness aluminum foil & outside with 200micron thickness galvanized iron(sheet metal). We also supply the full set of Accessories and Tools required to fabricate the duct.