Exporting to over 90 countries worldwide.

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

Permalevel Fixed Fire Systems 24/7 Monitoring Interview Feature - International Fire Buyer Sept/Oct 2013 Issue

Coltraco were interviewed in August and it has been released in this month’s issue of International Fire Buyer pages 70-73.

It is the first editorial feature we have had for some time. We did not ask for the interview. It is clear that it is the characteristics of the Permalevel™ Multiplex design, which has taken 3 years to develop was its driver.

International Fire Buyer has a circulation of 32,000 and is the most authoritative UK technical title in fire safety in the UK. Although the article is principally about our new fixed monitoring system, it provides an insight to our strategy in fire safety management - which is to transform how a fire suppression system is managed.

Our Marketing Director, Clare Hunter comments :

“For nearly 100 years fire systems have been installed with little or any thought being given to whether the gaseous suppressants actually exist. Because they are stored under pressure they may have accidentally discharged or been subject to slow and sustained leakage. Because the gases are odorless and colorless they are highly difficult to detect. Discharges occurring at night-time or in unmanned spaces will clear within a few minutes without any residue or signs of discharge.

When a fire system is designed the fire engineer calculates the amount of gaseous suppressant required to extinguish or suppress a fire for a period of time. If the contents do not exist or are deficient in quantity the risk of the system failing increases exponentially. Current industry practice relies almost exclusively on an annual inspection & certification that it does. But what happens for the other 364 days a year ?

Some monitoring systems have evolved to meet this need. They either focus on weighing contents or monitoring pressure. Pressure might be maintained despite loss of some contents. Permanent load weigh systems are a huge mechanical interference and difficult to retrofit. For new-build installations they take up space, are expensive and have very little networking, monitoring or data interface capabilities. A high rise tower block in Dubai might have up to 700 x FM-200™ cylinders across 60+ storeys. Each cylinder is between 3-6’ (approx 1000- 1800mm) in height and can each weigh up to 100 KG.

Permalevel™ Multiplex offers contents accuracy of +/- 1.5mm (1/8th of an inch) and data-logs all contents readings in each cylinder every second 24/7. It is modular and can be networked. Each module monitors 10-16 cylinder level points and offers both local green/red LED local indication displays plus 4-20 mA relays to trigger alarms or klaxons in the event of content loss. Through the RS232/485 computer interfaces all contents readings can be linked to a central alarm monitoring station, and from the central monitor each cylinder’s readings can then be interrogated by the maintenance team, enabling the readings from, for example, cylinder number 529 to be displayed.

Any cylinder content alarms can immediately be verified by the maintenance teams using the Portalevel™ MAX portable units.

Any cylinder found to be at fault can then be safely isolated and replaced.

Please contact me on This email address is being protected from spambots. You need JavaScript enabled to view it. for further details”.

Download PDF Here


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

News Updates

  • September 2013
    Permalevel Fixed Fire Systems 24/7 Monitoring Interview Feature
  • August 2013
    The Membership Committee of The Institute of Marine Engineering
  • May 2011
    Launching of new Website & Micro Site
  • April 2011
    Off to visit Hamburg
  • March 2011
    Leading European Bulk Carrier opts for the Portascanner II
  • November 2010
    Travelling back out to Singapore
  • August 2010
    Commissioning of the Next Generation of Technical Support from Coltraco Limited

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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