●As a fire extinguishing agent. CO2 is noncorrosive and causes no chemical reaction on metals, electrical insula-tions and oil, nor any mechanical damage to applied surfaces. CO2 does not deteriorate with age and can therefore be stored for an indefinite time.●CO2 leaves no residue to be cleaned up after extingui-shment of fire. Therefore the equipment that has not been damaged by fire can be re-used at once.●NOHMI’s unique actuating method using gas pres-sure Actuating cylinder enables simple and reliable actuation of the carbon dioxide extinguishing system. By the use of copper tube for the control lines, the cost of the actuating system is extremely low.●Approved by principal countries’ government autho-rities and ship classification societies in the world. NOHMI carbon dioxide extinguishing systems have been installed over three thousand ships.Engine Room and Pump Room etc. (Total Flooding System)The total flooding system is designed to discharge at least 85% of the total quantity of CO2 required for the protected space within two minutes so that any fires in the space can be extinguished at once. The total flood-ing system is the best method which allows the carbon dioxide extinguishing system to fully exhibit its advan-tages. The semi-total flooding system is also available. The semi-total flooding system is suited for the cargo space loading the self-propelled vehicles, and is capable of discharging two thirds of the total quantity of CO2 required for this particular space within ten minutes.Cargo Holds (Manual Release System)Nature of fires can vary with cargos and possibly range from surface fires to deep-seated ones. The manual release system is designed to individually release the CO2 cylinders one by one or by group in sequence depending upon the state of fires.●CO2は消火剤として腐食性がなく、金属、電気絶縁物、油などに対して化学的変化をおこさず、機械的損害を与えません。また、経年変化に強く、長期的な保存が可能です。●消火後の汚損が全くないので、火による損傷のない機器は直ちに使用できます。●操作はノーミ独自のガス圧操作で簡単確実。操作機構には操作ラインとして銅管を用いるため、きわめてローコストです。●3,000隻以上におよぶ実績と、各国政府・船級の承認を取得しています。エンジンルーム、ポンプ室など《全域放出方式》消火区画全体必要量の85％を2分以内に放出し、室内のいかなる火災も一挙に消火。CO2消火システムの特長を最大限に発揮できる方式で、また、自走式車両搭載区画には、必要量の3分の2を10分以内に放出する、セミトータルフラッディング方式があります。カーゴホールド《個別開放方式》火災は積荷により、燃焼が表面から深部におよぶ可能性があります。火災の状況により、CO2シリンダーを1本ごと、あるいはグループごとに順次マニュアルで開放する方式です。3-way/Distribution valves for Cargo HoldsThe 3-way manifold valve is used as selection valve in the manual release system for the cargo holds. It is also used as manifold valve when the carbon dioxide exting-uishing system is combined with the smoke sampling type fire detection system. In the latter installation, the air sampling intakes installed in the cargo holds are connected with the smoke detection panel through the manifold valves for continuous monitoring of the cargo holds. In case of fire, as the lever on the valve is turned, the air sampling intake (also serving as discharge nozzle) is connected with the CO2 cylinders through the valve so that CO2 can be discharged into the affected zone.Discharge NozzlesDischarge nozzles are installed to develop a uniform concentration of the extinguishing agent in all parts of the protected spaces. Model SA discharge nozzle is used in such areas as engine room and pump room where the total flooding system is installed. Model SM discharge nozzle is used for the manual release system installed in the cargo holds. When used in the Smoke Sampling Type Fire Detection System, Model SM discharge nozzle also serves as air in-take.●船用分配弁/分岐弁CO2 CylindersThe CO2 cylinders used in NOHMI carbon dioxide extinguishing sys-tems passed the inspection pre-scribed by “High-Pressure Gas Control Law”. The approval marks ○TY and are stamped on each cylinder. Cylinders conforming to the standards of other countries (BS, BV, NSI Standards, etc.) are also available. 68L and 82.5L type cylinder can be used.●炭酸ガス容器Model PH 14B Cylinder ValveModel PH 14B cylinder valve is installed on each CO2 cylinder and can quickly be opened by gas pres-sure from the actuating cylinder or by manual operation.●PH14型容器弁Delay Discharge UnitNK, JG, ABS, LR and NV Rules require that an audible evacuation alarm be given for a duration of at least 20 seconds before discharging CO2. The delay discharge unit holds up CO2 discharge for more than 20 seconds after releasing the actuating cylinder.●ガス圧遅延装置●放出ノズルThe Carbon Dioxide Extinguishing System
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