Positive pressure ventilation (PPV), also known as positive input ventilators (PIV), are ventilation systems that remove smoke from buildings to increase the likelihood of safe evacuations in the event of a fire.
The Smoke Control Association (SCA) regulations dictate that lobby ventilation is required either by natural ventilation or mechanical smoke control systems and how to meet these standards.
How It Works
The system works by driving air into a lobby or stairwell, moving high-pressure air into low-pressure areas, forcing smoke out of the communal areas meaning people can evacuate safely.
The unit is operated by a smoke detector and will continue to run until it is reset.
This reduces the risks during a fire as people will be able to vacate the building safely.
Contact us to discover the best PPV unit for your building.
What a Unit Contains
The PPV unit contains duty and standby fans, duty and standby fire dampers, a smoke detector interface, single phase automatic electrical change over switch, controls, status LED and a volt free contact for 3rd party monitoring.
The primary benefit of the PPV unit is evacuating smoke in the event of a fire meeting safety regulations and ensuring compliance. However, other benefits include: the unit takes up minimal space, are relatively cheap to buy and install causing little disruption to your building and the units can be used for buildings or car parks.
Published in PBC Today, David Mowatt, chairman of the Smoke Control Association (SCA) has written an article on the future of building regulations and touching on competence, compliance and a commitment to change.
Be Safe Direct are pleased to announce a new range of Dampers. Our new damper range has been engineered for optimum performance and have been tested to EN1366-2 & EN1366-10 Fire Damper test standards. Find out more.
If you are a property owner or developer, ensuring that you have the most effective control system in place for your smoke ventilation is vital. When choosing the best control system for smoke ventilation in your building, you will be faced with a number of options, offering different benefits and conflicting advice on each approach. In this article we look at some of the factors you should consider when choosing the controls for your smoke ventilation system.
Smoke Venting Brochure
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"Brilliant piece of kit. Easy to install and perfect for holding keys and fire documents. All delivered within 48 hours."
"Bought as a replacement for an existing unit. Very easy to fix as it only required the main cable to be trimmed and connected. The service from Be Safe Direct was excellent. Delivery was prompt and packaging excellent. Made even better by an extremely keen price."