ABS reports CO2 Systems Leak: Time To Conduct Your Risk Assessments

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ABS reports CO2 Systems Leak: Time To Conduct Your Risk Assessments

ABS have reported multiple cases in which CO2 cylinders in fixed fire systems were found empty and thus would not be able to suppress a fire event. ABS have hence recommended that all shipowners need to conduct a risk assessment of their CO2 systems.

As per the Ministero delle Infrastrutture e dei Trasporti: “In considerazione delle necessità di assicurare la continua funzionalità del richiamato sistema antincendio di tipo fisso e di prevenire un inatteso rilascio di CO2 nell’ambiente di lavoro, si dispone che  - codeste Società eseguano, per le unità gestite che risultano dotate del predetto impianto, una specifica e documentata valutazione del rischio, tesa a delineare eventuali, necessari interventi per la tutela della sicurezza e della salute dei lavoratori..”


Why do CO2 fire system cylinders leak?

  • Approximately 20% of a ship’s CO2 cylinders may have discharged or partially leaked
  • If the contents are not there, they will not extinguish in a fire event
  • A ship’s gaseous extinguishing system typically comprises between 200 and 600 cylinders each containing 45KG of CO2 under high 720 psi/ 49 bar pressure
  • The risk of leaking and discharging is accepted as part of their use because gaseous extinguishing systems are highly pressurised
  • This is shown in IMO SOLAS & FSS Code Chapter - “Means shall be provided for the crew to safely check the quantity of the fire extinguishing medium in the containers.”

What is the solution?

ABS Type Approved Portalevel® MAX Marine ultrasonic liquid level indicator

  • BETTER – most accurate unit on the market +/- 1.5mm & safer as no need to turn off the system or dismantle the cylinders
  • FASTER - combined with the MAX Marine, the Portasteele® CALCULATOR is an advanced app, that converts the liquid level of C02 into the agent weight/mass
  • CHEAPER – just one person needed to test safely and quickly (just 30 seconds per cylinder)


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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