Non-Return Dampers/Gravity Louvres
" AIRTRON" Non- Return are also known as Gravity Dampers/Back Draught Dampers/Pressure Relief Dampers.
The above Dampers are basically air operates, opening or closing dampers for air intake, discharge and or pressure relief vents in Airconditioning and Ventilation system.
SILENT FEATURES
#....Frame is maunufactures for high quality aluminium / galvanised sheet steel of 1.2mm thickness.
#....The blades are manufactured from high quality aluminium sheets of 0.5mm/0.7mm thickness.
#....The blades are fitted with nylon bushes to give rattle free and smooth performance.
#....The nylon bushes are used through galvanised steel rods to main frame for strong and rigid construction for smooth performance during variable air pressure
#....The frame is fitted internally with an aluminium / galvanised sheet steel angle to prevent over movement of the blade.
#....Additional centre Partition shall be provided if L or H dimension is more than 900mm.
AVAILABLE STANDARD SIZES
(any combination of L x H)
Lmm | 150 | 200 | 300 | 400 | 500 | 600 | 700 | 800 | 900 | 1000 |
Hmm | 150 | 200 | 300 | 400 | 500 | 600 | 700 | 800 | 900 | 1000 |
Other "H" sizes are available
in 50mm increments.