Requirement of Checking Cylinders’ Content With Gaseous Systems Leak

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Requirement of Checking Cylinders’ Content With Gaseous Systems Leak

Gaseous extinguishing systems protect urgently important infrastructure against special hazards, fundamental for the safeguarding of critical facilities. Although many in the fire industry work towards meeting better standards, in their experience, Coltraco have numerous concerning anecdotes of non-compliance: systems portrayed and installed by contractors as NOVEC 1230 but filled with sand or water. Room integrity testing with questionable results and with the room integrity remaining un-monitored after testing, liquefied extinguishants being confused by installers with Inert gas systems and service engineers asking how to test the liquid level in powder, obviously the list goes on.

Coupled with these anecdotes, currently the regulations are not extensive enough to deal with the risks presented in gaseous systems.

Maintenance of the Cylinder’s Content

We have explained here the regulations that the storage container contents with liquid level indicator shall be checked at least every six months as follows:

  • Liquefied gases: for halocarbon agents, if a container shows a loss of agent in quantity of more than 5 % or a loss of pressure (adjusted for temperature) of more than 10 %, it shall be refilled or replaced.
  • Non-liquefied gases: for inert gas agents, pressure is an indication of agent quantity. If a container shows a loss of agent quantity or a loss of pressure (adjusted for temperature) of more than 5 %, it shall be refilled or replaced. 
  • Essentially, it is known in regulations that the gaseous systems leak and need to be maintained. Given that the gaseous systems are designed specifically to the individual need of that room or building etc., a 5% loss of agent may mean that they would not fully extinguish the fire.
  • 1.5mm - the accuracy which Portalevel®, ultrasonic liquid level indicator and constant monitoring Permalevel® Multiplex can find the liquid level of agent in cylinders to.
  • 62.5% - Calibration band setting on the Portalevel® Max, found to operate on the broadest range of application to the tightest tolerance of any ultrasonic liquid level indicator in the world.
  • 26 seconds, The average test time to identify the liquid level in any liquid gaseous cylinder using the Portalevel® Max.

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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

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

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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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