Алюминий изоляцией и неизолированные воздуха Flexib

Single layer and double layer Aluminium Insulated & Non-insulated Air Flexible Ducts are specifically produced for low and medium pressure heating,cooling,ventilation,exhaust and air conditioning systems. flexible duct are produced from multi layer aluminum strengthened with high tension hard steel spring wire. flexible ducts have high elasticity and flexibility, which can be easily fitted to circular, oval and rectangular connectors. flexible duct or PET flexible duct ( polyester, flexible duct) Aluminium flexible duct has various types, flexible with single or double steel; insulated flexible duct; fire-prevention flexible duct; combination flexible duct. They can bear the tempreture from -20 to +80, Fire rated AS 4254 - 1995; Operating pressure: -190 pa to + 1200pa General use: Exhaust and ventilation systems, heating cooling, refrigerated, With different gram thermal rated polyester blanket, Detailed Product Description Operating temperature:-300 +1500C Operating pressure:250mmWG velocity of flow:20m/s units:M