PAFSS bus and coach systems, certified to UNECE Regulation No.107, provide protection inside the vehicle engine compartment and discharge at the heart of the fire, suppressing quickly and preventing the fire from spreading.

PAFSS Bus and Coach Fire Suppression Systems

PAFSS Bus and Coach Fire Suppression Systems

The Problem

Historically the installation of bus and coach fire suppression has not been a widespread mandatory requirement. The inclusion of such systems has been at the discretion of individual local government transport bodies and vehicle operators. This has now changed, as required by a countries membership of The United Nations Economic Commission for Europe (UNECE). The UNECE sets out norms, standards and conventions, including matters relating to safety of public transport.

With the introduction of The United Nations Economic Commission for Europe (UNECE) Regulation No.107, it has become mandatory on certain new classes of bus and coach to install a fire suppression system complying with the requirements of UNECE Regulation No.107.


The PAFSS Solution

Our system offers peace of mind for customers looking to specify a fully tested, approved and certified solution for fire protection of buses and coaches.

Jactone PAFSS bus and coach fixed fire suppression systems have been specifically designed to protect buses and coaches in accordance with the latest editions of UNECE Regulation No.107. The latest editions of UNECE Regulation No.107 include a fire testing procedure for fire suppression systems for engine compartments of buses and coaches with four distinct fire extinguishing tests.

PAFSS bus and coach systems provide protection inside the engine compartment and discharge at the heart of the fire, extinguishing quickly and preventing the fire from spreading. This can significantly reduce the risk of injury to personnel and vehicle losses, not to mention the operational disruption.

On guard 24 hours a day, 365 days a year


The special detection tubing used in all PAFSS fire suppression systems is UL Listed.

The UL Listing qualifies all Jactone PAFSS detection tube as a ‘Heat-automatic Fire Detectors – Component’, after comprehensive testing in accordance with ANSI / UL 521 – ‘Heat Detectors for Fire Protective Signaling Systems’.

UL Listed PAFSS Detection Tube

The benefits of PAFSS

  • Stored pressure system enables real time system health monitoring.
  • Nitrogen propellant.
  • Fire tested at the preferred bus low temperature of -40°C.
  • Specially developed pressure vessels manufactured in Jactone’s state of the art pressure vessel manufacturing facility in the UK.
  • Pressure vessel volumes and pressures tuned to give effective discharge performance under extremes of vibration and low temperature.
  • Advanced two stage cylinder external corrosion protection.
  • PAFSS uses a specially developed automotive grade detection tube, with enhanced chemical resistance.
  • Temperature range of operation : -20°C to +60°C
  • Uses a high performance ABC Powder extinguishant.


Click on the image to watch a system animation showing the operational principles of Jactone PAFSS® for buses and coaches.

Interested in PAFSS? Get in touch with us

+44 (0)1902 357777


UK Manufacturer


Jactone PAFSS is manufactured in our UK purpose built factory in the heart of the West Midlands.

Technical Expertise

Technical Expertise

At Jactone we have a real root and branch knowledge of the products we manufacture and supply. In fact, we are really passionate about them.



Product development is at the heart of what we do. This ensures we are market leaders in responding to certification, legislation and market changes.

Certified Products

Fully Certified

PAFSS is manufactured under our BS EN ISO 9001 quality system.

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