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


There are 55,000 ships in the world carrying 95% of all commodities and goods. 25% of these are Tankers, Chemical Carriers & Product Tankers. 40% of these are Bulk Carriers and General Cargo ships. These have a need for vessel integrity and vessel fire safety.

Currently it is well known that the shipping industry has taken a big hit in certain areas. The amount of “urgent” supply requests that increase during one of shipping’s cyclical down-turns is because it is during these times when owners risk vessel detention by not placing safety critical equipment on-board. There are two key aspects to investigate in more detail because they are oft overlooked: the ungoverned spaces of fire safety and watertight integrity. These two areas will be examined through the regulations and technologies used to solve these issues. Looking at the UK as leaders in the shipping industry worldwide with a case study focus on a British designer and manufacturer who is sailing through the tough times.

Engine room fires are often reported but there are many more instances where problems with the fire system may not reach the public eye. In a ship’s fire extinguishing system, there may be 600 x 45kg/100lb cylinders of CO2. The CO2 is a highly effective liquefied gaseous extinguishant designed to displace oxygen and suppress a fire. But they are under high pressure, often more than 50 Bar, and they can leak or accidentally discharge. Common knowledge suggests 20% of marine CO2 cylinders leak. If personnel are around when they discharge fatalities can occur. To inspects cylinder contents, the system is turned off, the cylinders dismantled, weighed and re-installed by certified personnel, which the crew are not. 30 years ago, marine servicing companies used radioactive-sourced level indicators, but these were damaging to health and subject to IATA transportation, licensing and storage requirements. The first handheld liquid level indicator to use ultrasonic technology provided a quick, accurate and safe means for anyone trained - from a marine servicing company, to chief engineer or crew member - to test the cylinder contents. This Portalevel® was designed and manufactured by Coltraco Ultrasonics who have since developed the technology to the 8th generation Portalevel® MAX Marine which can test all common clean agents.


A second key problem area for vessels is the watertight integrity: for example, 33% of cargo claims are due to leaking hatch-covers. Not only hatch-covers suffer seal integrity issues, but also the multiple cable transit areas, cable penetrations between bulkheads or watertight compartment doors. Historically the industry has used high pressure water hoses or chalk compression testing to test the seals.  These methods are messy, inaccurate, time-consuming and the environmental implications of water run-off is costly. They can also only be conducted when the ship is in port or when the cargo holds are empty.  Portascanner™ Watertight was designed by Coltraco Ultrasonics to meet the need for a clean, simple, highly accurate means to achieve watertight integrity in port, with or without cargo in the hold. It is handheld, intuitive to use, with audible and visual displays showing the most mathematically accurate results of its type worldwide.


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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