Large size Class A fire window
Large-size Class A fireproof windows (viewing windows) such as subway and mechanical and electrical rooms 3000mm x 2000mm
Hengbao Large-size Class A fireproof windows, the frame adopts 2.0mm thick high temperature resistant carbon steel, double-sided fireproof board on both sides of the frame and 1.0mm veneer, fireproof glass configuration. It introduced from European high quality FPOS 35mmA1.50 fireproof glass. The glass structure is four layers of 5mm tempered glass and three-layer 5mm FPOS fireproof glue, which are high transparency, good weather resistance, good heat insulation effect. The average temperature of the back surface is less than 140 °C when the fire surface is as high as 1000 °C (only 48° when testing C), and no yellowing, no whitishness, stable and reliable for more than 10 years. The certified size of the single layer glass is 3,000mm in width and 2000mm in height. The whole window meets Class A fire protection requirements of fire integrity and fire and heat insulation for 1.5 hours. It is the largest Class A insulation fireproof that China has obtained the national inspection report and CCC mandatory certification. After two decades of hard work, Heshan Hengbao has taken the lead in solving the problem of legalization of the super-class fire safety observation window of the subway high-speed rail fire control room.