Room Integrity and Compartmentation

Coltraco Commitment To :

  • Through-life maintenance support
  • We still maintain units built 20 years ago
  • Extend trade-in credits - replace old units for new
  • UL listing & ABS type approval - Portalevel™ MAX
  • ABS type approval & RINA approval - Portascanner™
  • Be a life-safety technology partner – Permalevel™
  • Certified OEM calibration & ODA service stations

Coltraco manufacture Ultrasonics That Work

Room Integrity and Compartmentation

Room Integrity is often an overlooked aspect of a clean agent installation whereby it is required that the concentration of the clean agent meets the sufficient “Hold Time” when discharged in a room in order to properly extinguish fires. Achieving this “Hold Time” is largely dependent on the overall leakage in the room otherwise referred to as the “Equivalent Leakage Area” or ELA in the industry. The most common and widely accepted way of determining whether the enclosure achieves the sufficient “Hold Time” for the agent is by carrying a Door Fan Test (DFT). This involves pressurising and depressurising the enclosure to check if it achieves the pass rate and if the enclosure fails the test, the presence of leaks are the common contributors to this failure. The industry introduces various methods to identify these leaks which are then patched up before the DFT is being conducted again. What is an often-neglected fact is that as a buildings age or their internal use is changed, leak sites will begin to develop. If the gas cannot be held in the confined space on discharge during a fire event, the probability of its suppression diminishes in proportion to the size of the leak sites. Clean agents are designed to operate in limited spaces where there is a need for speed of suppression given the asset risk and where the space is occupied by people. They must be easily maintained in-situ, non-flammable and non-toxic. They must comply with ISO 14520 and NFPA 2001 standards demanding fast discharge in 10 seconds and fire extinguishing within 30 seconds, delivering confidence to the operator that it delivers “best fire safety practise”.

Despite DFT being a reliable method to determine the “hold time”, methods to locate the leak sites themselves are inaccurate such as the use of smoke pencils or draught testing using the back of a hand. The limitations of the DFT often lie in the fact that the leakage areas are only identified during installation of the clean agent system and make no acknowledgement to the fact that additional leak sites may develop throughout the lifetime of a building.

In the event of fire, a pencil sized hole between compartments size 6m x 6m x 3m would take just 4 minutes before a person would not be able to see their hand due to smoke. If this compartment was a fire escape, there could be a severe threat to life if people cannot escape. Thus it is clear to see why the maintenance of the integrity of the compartments is essential to genuinely aid the safety to human life. As building age or their internal use is changed leak sites develop and the threat to people becomes high Coltraco Ultrasonics have provided a smart solution for quick and easy assurance of compartmentation and leak detection. The proprietary device known as the Portascanner® 520 ultrasonic leak detector uses ultrasonic technology to not only pinpoint precise leak locations, but to determine their leak apertures as small as 0.06mm with a tolerance of +/-0.02mm, and is by far the most mathematically proven accurate device for this function.


CEO Message

Integrity and Science Key to Our Culture of Performance

Dear Coltraco Customers, Strategic Partners and Distributors,

Integrity is our defining value. Performance is its consequence. We understand that our customers have choices, and how we perform determines whether customers choose us. Coltraco’s Code of Ethics does not merely require compliance with laws. It embodies a Commitment to positive behaviours that build trust, promote respect, operate with distinction, with courtesy and global levels of performance, demonstrating our integrity and delivering customer performance.

We honour our commitments, communicate transparently, and act with honour. Ethics are the foundation of our performance culture and our science-based approach. We lead in specific technologies delivering the watertight integrity monitoring of marine structures and the monitoring of fixed liquefied gaseous fire extinguishing systems and the room integrity of protected space to ensure agent hold-times post-installation. We show this by our understanding of the science in them and the mathematics that explain them.

I would like to thank you for your business and for the relationships with our Customers, Strategic Partners, Distributors and ODAs who we value so highly.

My kindest regards,

Carl Stephen Patrick Hunter BA(Dunelm) Hon DSc FRINA FIMarEST MRAeS
CEO & Managing Director
Coltraco Ultrasonics Limited
46-47 Mount Street, Mayfair, London W1K 2SA
United Kingdom

Tel:  +44 20 7629 8475
Fax: +44 20 7629 8477

Call Now : +44 207 629 8475


References in PDF Format


Underwriters LaboratoriesUnderwriters Laboratories


Reference Alpha Fire UK Portalevel MAX Sept 2012

Reference Portascanner-II CSD MOD Albion and Bulwark





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