Natural Smoke Ventilation
D+H UK
D+H UK use advanced technology and our in-depth understanding of fire / smoke behaviour to create ventilation systems that respond instantly and effectively to fire. They follow a strict policy of providing best practice in the field of life-saving smoke ventilation solutions. D+H UK provide fully certified Natural Smoke and Heat Exhaust Ventilators (NSHEVs) for various solutions.
Have a look at D+H UK NSHEVs here
Tailored smoke ventilation solutions:
+ Stand-alone system or integrated with existing fire alarm interfaces
+ Multi-zone and internal options
+ Optical smoke alarms and heat alarms
+ Data transmission across BUS technology
+ Integration with natural ventilation via automatic vent opening
Without an NSHEV system
Toxic gasses, smoke and heat accumulate in the building
Lives are endangered, rescue work is impaired and property is damaged
With an NSHEV system
Vents and air inlets remove smoke, gas and heat
Smoke is diverted to produce a stable smoke layer boundary
Typical D+H UK staircase system
+ Control panel with call point unit
+ Fire / smoke alarm
+ Call point / break glass unit
+ EN Certified NSHEVs
NSHEV Operation
NSHEVs clear escape routes of smoke, and/ or provide smoke-free space for fire-fighting. They can vent directly via external walls / roofs using windows, louvres and rooflights, or through internal smoke shafts via smoke dampers. NSHEVs can be triggered automatically via smoke detection or fire alarm interfaces, or manually using call point units, opening fully within 60 seconds. NSHEV’s can be reset and closed automatically or manually through the control system.
Take a look at D+H UK NSHEVs here.
