The intelligent use of water for fire fighting applications The SEM-SAFE® high-pressure water system uses water micro-droplets released through the nozzle into protected areas. An ultra fine mist is formed with a two-fold extinguishing effect. In addition to cooling the flames, it simultaneously starves the fire of oxygen. The cooling effect also lowers the risk of re-ignition. This makes high-pressure water mist highly effective in the fight against fire and protects against heat damage. SEM-SAFE® in brief The SEM-SAFE® system comprises a high-pressure modular pump unit, section valves, piping and water mist nozzles. With small pipe dimensions, large coverage and minimal water consumption, SEM-SAFE® high-pressure water mist is a reliable choice to protect data centres against fire. For this project, we supplied a SEM-SAFE® high-pressure water mist pump unit comprising five pumps/motors. There are 14 pre-action valves serving the data halls with 4,000 SEM-SAFE® high-pressure water mist nozzles installed throughout all areas of the data centre. Green technology all the way The SEM-SAFE® system is built with sustainability in mind and uses an ultra-clean technology: pure water. The 100% environmentally- friendly fire safety technology is completely safe for people. Maintenance-free Danfoss pumps The SEM-SAFE® high-pressure water mist system uses high-quality Danfoss PAH high-pressure pumps, which are lubricated by water, making them virtually maintenance-free. Tested & approved The system is designed and installed to meet BS 8489-1:2016: Fixed fire protection systems. Industrial and commercial watermist systems. One fire safety technology covers an entire data centre The SEM-SAFE® high-pressure water mist system is approved to protect all applications in a data centre, including storage rooms, data halls, loading bays, generators and office spaces. Optimum fire protection for people and assets The ultimate goal is to save lives and limit damage to the equipment while keeping the data centre running. High-pressure water mist produces a high level of atomization. That, in combination with the low water consumption of the SEM-SAFE® system, means that water damage is kept to a minimum. A double knock pre-action system is used in LONDON9. The piping system is dry and nozzles are closed (with a bulb). When a fire is detected and confirmed by the fire alarm system, the section valve of the SEM-SAFE® system opens immediately and water flows into the distribution pipe network. Only nozzles with broken bulbs are activated. This means that only the areas affected by fire will be actively sprayed. SEM-SAFE® high-pressure water mist nozzle “Fireworks Fire Protection Limited were delighted to be awarded the water mist fire suppression package at VIRTUS LON9. The specification called for an FM 5560 high-pressure water mist system and the SEM-SAFE® product enabled us to secure the project. With our excellent design, project and installation teams providing the necessary professional technical support to both client and end user, we were able to showcase our skills and expertise installing the SEM-SAFE® high-pressure water mist system in Phases 1, 2 and 3 at LON9. We were very pleased to work together with Danfoss Fire Safety and we look forward to having other exciting Data Centre projects in the future.” Lee Haines Sales Director at Fireworks Fire Protection Ltd. SEM-SAFE® has many advantages for data centre fire safety Minimum downtime Instant cooling in the fire zone Ventilation can be kept running No need to keep the data centre airtight Lower total cost of ownership with no refill cost and maintenance-free pumps About Danfoss Danfoss is a Danish multinational company, that manufactures products and services used in cooling, heating, air conditioning, fire safety, drives, power modules and much more. With over 28,000 employees and operations in over 100 countries, Danfoss is fully committed to developing sustainable and climate friendly solutions for greener cities and more efficient district energy networks. ® Danfoss Fire Safety A/S · Middelfartvej 9 · DK-5000 Odense · Denmark Tel. +45 7488 7800 · E-mail firesafety@danfoss.com · www.semsafe.danfoss.com Any information, including, but not limited to information on selection of product, its application or use, product design, weight, dimensions, capacity or any other technical data in product manuals, catalogues descriptions, advertisements, etc. and whether made available in writing, orally, electronically, online or via download, shall be considered informative, and is only binding if and to the extent, explicit reference is made in a quotation or order confirmation. Danfoss cannot accept any responsibility for possible errors in catalogues, brochures, videos and other material. Danfoss reserves the right to alter its products without notice. This also applies to products ordered but not delivered provided that such alterations can be made without changes to form, fit or function of the product. All trademarks in this material are property of Danfoss A/S or Danfoss group companies. Danfoss and the Danfoss logo are trademarks of Danfoss A/S. All rights reserved. © Copyright Danfoss Fire Safety A/S | 2021.04
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