Phenolic & Pre-Insulated Duct
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There is a range of advanced and innovative systems of pre-insulated air-distribution ductwork available. The systems are suitable for both new build and refurbishment projects in the residential, commercial, institutional, and industrial and leisure sectors.
It is the answer to economical, technical, and constructive question. Many different material and system such as composite, PVC, etc. had been developed as an alternative to the galvanized sheet metal used traditionally.
Pre-Insulated Duct is the solution. It is a sandwich panel composed of a layer base from good fire retardant rigid polyurethane foam covering both sides with aluminum foil.
Pre-Insulated Duct is the solution. It is a sandwich panel composed of a layer base from good fire retardant rigid polyurethane foam covering both sides with aluminum foil.
Polyurethane pre-insulated duct has been developed and spread around the world. Its application has been gradually extended to all type of air distribution system such as industrial, commercial and civil.
Construction
- Frame: High quality galvanized Iron Sheet of 1.6mm thickness.
- Blades: Interlocking type blades roll formed from 1mm thick galvanized steel.
- Blade Ramp: Formed from 1.6mm thick galvanized steel with a spring holder.
- Springs: 2nos. constant force stainless steel springs.
- Fusible Links: UL listed fusible links which has fire rating of 165° F / 212° F the shorter sides and Slip cleats on the longer sides.
