Double leaf natural smoke and heat exhaust ventilator.
Suitable for commercial applications.
The Double Leaf (NSHEV) UDF-50REM Smoke and Heat Exhaust Ventilator is fitted with solid, insulated covers and electric actuation for remote opening and closing.
The kerb is 305 mm in height with integral capflashing, 50 mm polyisocyanurate insulation with a U-value of 0.47 W/m²K, fully-welded at corners, and 114 mm mounting flange with 11 mm holes provided for securing frame to the roof deck.
Features and benefits:
1848 x 1728 mm
L10/490 Roof ventilators
To BS EN 12101-2.
Aerodynamic free area
10,000 when used as a day to day ventilator.
Snow load classification
Low ambient temperature classification
Wind load classification
Overall: 1848 mm; Internal: 1620 mm.
Overall: 1728 mm; Internal:1500 mm.
Control Panel Kit (Control Panel, MCP, and Smoke Detector).
Auto/ manual control switch.
Open/ close smoke vent switch, keyed.
Open/ close smoke vent switch, paddle.
OS2 control panel.
Open/ close switch.
Weatherproof open/ close switch.
MCP with break glass.
Double-skin aluminium, insulated.
3 mm aluminium, 50 mm thickness polyisocyanurate.
Heavy extruded EPDM rubber gasket bonded to the cover interior to ensure a continuous seal when compressed to the top surface of the kerb.
Explosion relief smoke vent
3 mm aluminium with a 100 mm beaded flange with formed reinforcing members. 50 mm thick polyisocyanurate insulation, U-value 0.47 W/m²K.
Maximum live load
Covers reinforced to support a minimum live load of 195 kg/m².
1/150th of the span (maximum).
Two 24VDC, battery backed linear actuators per cover (four actuators total) capable of opening the cover to the fire open position of 90º within 60 s and be capable of closing the covers.
Heavy pintle hinges provided. Curb mounted junction box (2 no.) with terminal blocks enclosed for power cable connection.