19_Refractory clad metal air duct |
Rel. 2022-09-25 |
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2022-05-06 12:50:59 |
for any questions send an email to: info@a1classfireproof.com |
Refractory clad metal air duct
The refractory clad metal air duct is filled with 50mm rock wool on the outer surface of the original metal air duct, and covered
with 8mm or 9mm Bohengyi air duct plate. It meets the requirements for the fire resistance limit of ventilation ducts in GB51251-2017
"Technical Standards for Smoke Prevention and Exhaust Systems in Buildings".
Features
Combustion performance A1 grade, high strength and light weight, water and moisture resistance, easy processing.
Application field
Widely used in smoke prevention and exhaust systems of various buildings.
STRUCTURE CHART
TECHNICAL PARAMETERS
PROJECT NAME |
TECHNICAL PARAMETERS FOR 1 & 3 HOURS FIRE RESITENCE LIMIT |
Structure |
Galvanized steel plate + rock wool + Bohengyi refractory duct plate |
Inner layer |
Material |
Galvanized steel |
Core |
Name |
Rock Wool |
Thickness |
50mm |
Outer layer |
Material |
Bohengyi refractory duct board |
Thickness for 1 Hour fire resistance limit |
8mm |
Thickness for 3 Hours fire resistance limit |
9mm |
Link method |
Angle steel flange |
Construction methods |
Air duct hoisting and wrapping secondary construction |
FINISHED PRODUCT EFFECT
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