Staircase Pressurisation System
For the highest level of safety
Discover Systemair's advanced Staircase Pressurisation System, designed to DIN EN 12101 and VDMA standards. Our technologies provide effective smoke control in escape routes and fire escape staircases, supported by flushing systems.
Rely on our technology for reliable smoke control and protection of human life in your building.
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Safety in case of fire
Pressure systems for smoke control
Smoke is the biggest danger in a fire, and not just for those escaping. They also endanger and hamper the emergency services.
Systemair's advanced electronically controlled pressurisation systems provide reliable and proven safety in the event of a fire. Our systems not only assist in self-rescue, but also provide firefighters with additional protection from fire smoke at high fire temperatures, ensuring clear visibility and faster access to the source of the fire.
Different systems are used to dilute smoke or keep stairwells smoke-free, depending on the requirements.
Explore the Systemair Staircase Pressurisation System
A Systemair Staircase Pressurisation System is used to keep escape and rescue routes such as stairwells, vestibules and fire fighters' lifts smoke-free, for self-rescue and to ensure that the fire fighters can attack the fire.
The principle of operation described here is based on pressurised ventilation with controlled pressure maintenance, i.e. a defined overpressure is built up in the area to be protected. This prevents smoke from entering the protected area. A pressure cascade gradually reduces the pressure level from the refuge area to the areas away from the escape routes.
Click on the different parts of the diagram to find out more about each element of our SCP and to get direct links to specific product information.
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Fresh air intake / weather protection grille
To protect the external exhaust and outside air wall openings from rainwater.
Duct smoke detector (optional)
For detecting smoke in ventilation ducts.
Fresh air intake damper
Control and shut-off damper for ventilation ducts.
Supply air fan
To generate an overpressure in the area to be protected.
Control unit / switch cabinet
The control system and control cabinet are always customised to your system. Our experts will be happy to help you.
Frequency converter and braking resistor
Each for supply and exhaust air. For infinitely variable speed control of three-phase asynchronous motors.
Manual fire alarm button
Smoke exhaust ventilation push-button consisting of a flat metal or plastic housing with door, a lock and replaceable glass impact disc, the HRM-3 smoke exhaust ventilation push-button is used as a manual call point in smoke and heat release systems.
Fire brigade switch
For higher-level operation by the fire brigade.
Reference / zero measurement
Exhaust air pressure measuring point
Flash and Siren (optional)
For visual and acoustic signalling in the event of a fire.
Overflow
Überdruck-Systemeinheit, für die Durchspülung der Vorräume von Sicherheitstreppenräumen auch bei geschlossenen Türen.
Supply air pressure measuring point
Measuring point for pressure detection.
Floor release (window, smoke extraction flap / door)
Smoke exhaust damper as a fire-resistant outflow closure for installation in outflow shafts, for example.
Manual fire alarm button
Smoke exhaust ventilation push-button consisting of a flat metal or plastic housing with door, a lock and replaceable glass impact disc, the HRM-3 smoke exhaust ventilation push-button is used as a manual call point in smoke and heat release systems.
Skylight dome / Air Release
As an air release opening at the stairwell head.
Wind and rain sensor (optional)
For recording and analysing the wind speed or precipitation. This closes the skylight dome in the event of wind, rain or snow.
Smoke exhaust fan F300 / F400
Smoke exhaust fan for overcoming high pressure losses in the air release area.
Differential pressure sensor
For detecting differential pressures in stairwells, fire brigade lifts and shafts.
Pressurised flushing ventilation in stairwells
During purge ventilation, positive pressure is created in the stairwell and the stairwell is also protected by smoke dilution and evacuation. However, smoke in the escape route cannot be reliably prevented.
In these systems, supply air is introduced at the bottom of the staircase and flows through the staircase from bottom to top. The air is released outside at the top of the staircase through automatically opening dampers, skylights or windows.
If all the doors to the staircase are closed, the overpressure will prevent smoke from entering. If a door is opened, smoke gases can enter the stairwell where they are immediately diluted by the airflow and discharged upwards.
This type of system is suitable where the use of the building means that the door to the stairwell is unlikely to be opened, e.g. residential buildings with direct access to the stairwell.
Click on the different parts of the diagram to find out more about each element of our smoke exhaust ventilation and to get direct links to specific product information.
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Fresh air intake / weather protection grille
To protect the external exhaust and outside air wall openings from rainwater.
Duct smoke detector (optional)
For detecting smoke in ventilation ducts.
Fresh air intake damper
Control and shut-off damper for ventilation ducts.
Supply air fan
To generate an overpressure in the area to be protected.
Control system / switch cabinet
The control system and control cabinet are always customised to your system. Our experts will be happy to help you.
Frequency converter and braking resistor
Each for supply and exhaust air. For infinitely variable speed control of three-phase asynchronous motors.
Manual fire alarm button
Smoke exhaust ventilation push-button consisting of a flat metal or plastic housing with door, a lock and replaceable glass impact disc, the HRM-3 smoke exhaust ventilation push-button is used as a manual call point in smoke and heat release systems.
Fire brigade switch
For higher-level operation by the fire brigade.
Reference / zero measurement
Flash and Siren (optional)
For visual and acoustic signalling in the event of a fire.
Supply air pressure measuring point
Measuring point for pressure detection.
Manual fire alarm button
Smoke exhaust ventilation push-button consisting of a flat metal or plastic housing with door, a lock and replaceable glass impact disc, the HRM-3 smoke exhaust ventilation push-button is used as a manual call point in smoke and heat release systems.
Skylight dome / Air Release
As an air release opening at the stairwell head.
Wind and rain sensor (optional)
For recording and analysing the wind speed or precipitation. This closes the skylight dome in the event of wind, rain or snow.
Differential pressure sensor
For detecting differential pressures in stairwells, fire brigade lifts and shafts.
Kits for differential pressure systems
Discover our selection of successfully tested kits for differential pressure systems in accordance with DIN EN 12101-6:2022-11.
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Our kits for staircase pressurisation system
A total of four tested kits are available for different applications.
Contact us
Our team of experts for staircase pressurisation systems can provide advice and support.