An evolution of the proven system for stairwell and escape route protection. The same reliability and response speed, now in an even more compact form.

The iSWAY NX-FC represents the next step in the development of SMAY pressure differential systems for escape route protection. The new generation compact pressurisation unit is particularly well suited to:

• stairwells, fire-protected lobbies, and lift shafts,
• high-rise and tall buildings, as well as large-footprint facilities,
• projects requiring minimal plant space whilst maintaining the highest safety performance.

The iSWAY NX-FC is an enhancement version of the proven iSWAY FC unit – installed in hundreds of high-rise buildings worldwide – and forms part of the complete Safety Way pressure differential system.

Take advantage of our design support, or discuss pricing and lead times – get in touch.

iSWAY NX-FC in The Portal, London

This 120-metre high-rise comprises 350 residential apartments. Escape route protection is provided by a total of 54 iSWAY units, including 27 purpose-designed standby units. This project exemplifies a scheme where scale demanded not only performance, but also system redundancy and absolute reliability.

How to ensure safe evacuation in multi-storey buildings?

In modern high-rise and large-footprint buildings, it is essential to ensure:

• the required overpressure across closed doors,
• the required airflow rate across open doors,
• control of excessive pressure build-up to ensure escape doors can be opened.

Pressure differential systems provide safe evacuation conditions in stairwells and lift shafts during a fire – creating a barrier that smoke cannot cross.

What role does the iSWAY unit play in a pressure differential system?

The iSWAY NX-FC is a key component of the Safety Way pressure differential system. It is responsible for generating and precisely maintaining overpressure in stairwells, fire-protected lobbies, and lift shafts during a fire.

Its functions include:

• Supply of pressurisation air – generates the required overpressure across closed doors.
• Stabilisation of conditions when doors are open – dynamically increases airflow to prevent smoke ingress.
• Control of maximum pressure – prevents excessive pressure build-up that could impede the opening of emergency doors.
• Continuous parameter monitoring – maintains the required values in accordance with the design through differential pressure measurement and inverter control.

In practice, the iSWAY serves as the “heart” of Safety Way the pressure differential system – the effectiveness of stairwell protection in high-rise and large-footprint buildings depends on its response and stability.

As part of the Safety Way system, it works in conjunction with automation, sensors, and the control system to form a complete, scalable smoke protection solution.