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CATALOGNUMBER

1150

MARINE CO 2SYSTEM

704 S. 10th St l PO Box 610 l Blue Springs, MO 64013-0610 U.S.A. l (816) 229-3405 l Fax (816) 229-4615 l E-mail: fpssales@fike.com

September, 1999Revised Issue

Architect and Engineering Specification

CO 2 Marine Suppression System

GENERAL DESCRIPTIONThe Fike Marine Carbon Dioxide Extinguishing System isdesigned to be used on offshore applications where singleor two-step manual actuation is required. The Fike MarineCO 2 system utilizes superior engineered products to accom-plish system operation utilizing fewer components whichlowers cost and increases system reliability.

The Fike Marine CO 2 system provides all the flexibility tomeet various marine special hazard applications with a mini-mum of components, increasing reliability and decreasingcosts. Some of the available components include manualpull box, pneumatic actuator, pneumatic time delays, pneu-matic sirens, cable pulleys, and a full range of CO 2 rackingand nozzles.

APPLICATIONSCarbon dioxide has many desirable properties when utilizedas an extinguishing agent. It will not damage cargo or ma-chinery, and leaves no residue after system discharge. Sinceit is a gas, carbon dioxide will penetrate and spread to allparts of the space. It does not conduct electricity, thereforeit can be used on live electrical equipment and it can beeffectively used on most combustible materials.

Typical applications aboard ships for the Fike High Pres-sure CO 2 system include cargo spaces, machinery spaces,pump rooms, paint lockers, enclosed ventilation systemsfor rotating electrical equipment, and chemical store rooms.

SYSTEM OPERATIONThere are three basic system configurations for a Marinehigh pressure CO 2 system. The hardware associated witheach system varies due to the appropriate U.S.C.G. require-ments. The basic system configurations are: Protecting a hazard that requires 300 pounds or

less of CO 2. Protecting a single hazard that requires more

than 300 pounds of CO 2. Protecting more than one hazard with a common

grouping of carbon dioxide cylinders.

Below is an example system that is designed for protectionof a single space that requires more than 300 lbs. (136.1kg) of carbon dioxide. (See system layout drawing)

Cylinder actuation is accomplished pneumatically, with a ni-trogen pilot cylinder. Secondary actuation is accomplishedby a cable pull and a normally closed stop/directional valve.

When the lever on the pneumatic actuator is operated theCO 2 master cylinder valves open and the resulting carbondioxide flows into the system manifold where a pneumatictime delay, pneumatic siren, and pressure switch are lo-cated. This flow will cause the pressure switch to operate,the alarm to sound, and the time delay to begin to cycle.When the time delay finishes cycling, the resulting agentflows to the normally closed stop/directional valve. If thenormally closed stop/directional valve was operated duringsystem actuation then the CO 2 flow would be directed tothe slave cylinders and the system nozzles.

This system includes all cylinders and actuation equipment.Nozzles, bracketing, cable pulleys, and other options arenot shown.

Some of the benefits of a Fike Marine Carbon Dioxide Sys-tem are: Valve construction allows the pneumatic actuator

to connect directly into the valve. No otheractuation components required.

Efficient time delay Low equivalent length timedelay allows the time delay to be installed directlyin the manifold, minimizing the use of separateactuators and valves to control agent flow.

All levers and controls are included with systemcomponents.

A detailed description of the each system configuration islocated in the Fike Marine Carbon Dioxide Fire Extinguish-ing System Manual. Consult the appropriate data sheet fora detailed description of each component.

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