SEM-SAFE® high-pressure water mist system In 2008, an agreement concerning the installation of SEM-SAFE® high-pressure water mist system from Danfoss was signed. The project covers metro lines, public space, electrical equipment rooms and technical rooms. In 2009 all fire tests necessary were passed successfully, proving the reliability of the SEM-SAFE® system. The SEM-SAFE® highpressure water mist acts efficiently in controlling the fire, with minimum water consumption and close to no water damage. In order to ensure the safe evacuation of the people from the train, in case of a fire, micro nozzles were installed at every door opening in the station. Upon activation, dense water is rapidly discharged, forming a “water curtain”, which will keep the smoke inside the train. It offers control over the heat, smoke and toxic gas, thus ensuring safe evacuation of people and easy access for the fire fighting crew. The system will prevent fire from spreading from the train to the platform, while lowering the temperature and scrubbing the smoke. The benefits of SEM-SAFE® The benefits of the SEM-SAFE® high-pressure water mist from Danfoss are immense: • It was recorded to be harmless to electrical equipment, with excellent results during the tests • It is totally safe for human beings • Damage to surrounding equipment is minimal • Release and disposal of water is a simple process • The extinguishing time is reduce due to rapid and dense water discharge • The cooling process is uniform and the smoke and toxic gas is kept under control The benefits provided by the SEM-SAFE® system as well as the fact that it has been proven to be a money saving investment formed the reasons why SEM-SAFE® high-pressure water mist system was chosen as the best solution for fire protection of the Shanghai Metro. Until the end of 2011, a total of approximately 6,000 nozzle heads and 40,000 micro nozzles had been installed in the metro stations in Shanghai in addition to more than 100 pump units. The protection of the metro line is an ongoing process because of the expansions of current line and construction of new ones. SEM-SAFE® pump unit installed in the project site. Micro nozzle Evacuation Access area to the metro protected with Key operation equipment SEM-SAFE®. protected with SEM-SAFE®. The SEM-SAFE® micro nozzle creates a water curtain, which will keep the level of toxic gas under control, while simultaneous cooling. ® Danfoss Fire Safety A/S · Middelfartvej 9 · DK-5000 Odense · Denmark Tel. +45 7488 7800 · E-mail firesafety@danfoss.com · www.semsafe.danfoss.com Danfoss Fire Safety A/S can accept no responsibility for possible errors in catalogues, brochures and other printed material. Danfoss Fire Safety A/S reserves the right to alter its products without notice. This also applies to products already on order provided that such alternations can be made without subsequential changes being necessary in specification already agreed. All trademarks in this material area property of the respective companies. SEM-SAFE® logotype is trademark of Danfoss Fire Safety A/S. Danfoss logotype is trademark of Danfoss A/S. All rights reserved. © Copyright Danfoss Fire Safety A/S | 2019.06
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