Free smoke

Natural Smoke and Heat Exhaust Ventilator

NSHEV Free Smoke is a patented and compact system consisting of an aluminum frame with a sealing gasket, aluminum hinges, galvanized steel rivets and fittings, and an opening device with a three-stage pneumatic cylinder operating with a mixed gas of CO2/OIL, pivotally mounted between two parallel brackets. It also includes a CO2 cylinder, a thermal fuse ampoule (with various available calibrations), and a thermal valve.

The presence of an additional latch cylinder ensures the possibility to open the sash for periodic maintenance and cleaning activities.

The device can be connected to a remote pneumatic opening without any additional accessories.

The NSHEV Free Smoke is a device designed for emergency opening only and requires manual closing from the roof.

COMPACT SYSTEM
EXCLUSIVE TECNOCUPOLE PATENT
CONTROLLED THRUST UP TO FULL OPENING
PERFORMANCE CLASSES IN DoP

PERFORMANCE CLASSES IN DoP

PRODUCT DESCRIPTION Free Smoke LOW ENVIRONMENTAL TEMPERATURE T-25° C
SERIAL NUMBER ######### WIND LOAD WL 1500
OPERATION automatic/automatic + manual HEAT RESISTANCE B 300
TEMPERATURE OF THERMAL START-UP 68°C / 93°C / 141°C / 181°C FIRE REACTION OF THE INFILL MATERIAL B-s1, d0 for polycarbonate
EFFECTIVE AERODYNAMIC SURFACE AREA Aa variable according to device size SPOILER RESISTANCE Not present
RELIABILITY RE 50    
OPENING UNDER LOAD

SL 1000 if the geometric surface area is less than or equal to 3m2
SL 500 if the geometric surface area is greater than or equal to 3m2

   
CYLINDER SIZE WHEN OPENING

CYLINDER SIZE WHEN OPENING

H (mm) Net A-light (mm)
400 ≤ 860
440 > 860/ < 1400
620 ≤ 1400
Natural smoke extraction
Natural lighting