FC-RLD-HP Bubble-tight Air Tight Dampers are designed to provide high level tightness at extremely high pressure, up to 100KPa differential pressure and can stand pressure difference up to 180KPa without permanent deformation which may affect its tightness performance. Therefore, this product is capable to tackle the most critical situations for key buildings or systems such as NBC filtering system of hardened shelters, control room of nuclear power plant and control buildings of OGP industry.
Frame
material: Galvanized steel/Nickel coated steel/SS304/SS316
Blade
material: Galvanized steel/Nickel coated steel/SS304/SS316
Working pressure: 180KPa
Zero-leakage pressure: 100KPa
Sealing type: Fluoro rubber
[Leakage rating]
Standards Test method Rating by criteria EN1751:2014 Ventilation for buildings. Air terminal devices. Aerodynamic test. FIGURE 1 (Blade) Class 4 FIGURE 2 (Casing) <0,25 dm3/h AMCA 500D-18 Laboratory Methods of Testing Dampers for Rating FIGURE 5.8 Bubble-tight (Zero Leakage) at 100KPa KTA 3601-2017 Ventilation Systems in Nuclear Power Plants Class 1
Note:
The leakage test was done after the specimen had been under 180KPa
differential pressure with blade closed.
Refer to lealfet
Product is certified by ERUOFINS EXPERT SERVICES, Finland. Test report available upon request.