What is backflow?īackflow occurs when water flows from a structure’s plumbing system in the opposite direction from which it is intended. The owner or manager of the building usually contracts a company, such as LifeSafety Management, to tap into the main and run piping underground to feed the system.Īll of this sprinkler water comes from the same city source that provides water for the structure’s other needs, including toilets, sinks, and water fountains.
Fire sprinkler design flow test manual#
The flow test results are compared with the design calculations to ensure full compliance with the design and the relevant standards.įollowing commissioning the design engineers will provide ‘as fitted’ drawings, which will form part of the O&M manual and/or user’s guide.Image credit: Wikipedia How this important technology keeps public water systems safe – and why you need to have yours inspectedĪ typical building derives its water supply from the city water main adjacent to it, which feeds all of its water needs, including the sprinkler system installed to fight fires. On completion of the installation, system commissioning will be carried out including a full flow test. If any deviations from the design drawings are required during installation, these are noted and forwarded to the design engineers who will make any adjustments that may be required. After approval, a design document will be prepared and forwarded whilst working drawings will be prepared for use by the installation engineers. The design drawings will then be forwarded to the client for approval. Any problematic areas will be discussed with the client to come up with a solution that satisfies both the British Standard and that of the client’s wishes. Our design engineers will, as far as possible, line up the fire sprinklers with the lighting plan. Normally the drawings supplied to us will include the lighting layout for the property. The system water requirements will be noted on the design document. This ensures that all the sprinkler heads in the system will perform in accordance with the British Standard and that the design is the most cost efficient. The sprinkler pipe network is then balanced by changing pipe diameters. This will determine the water flow and pressure required by the system.
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The sprinkler system pipe work is then added to connect the fire sprinkler heads to the supply, which will either be a direct water supply from an incoming mains pipe or a water storage tank with a fire pump set.įull Hydraulic Calculations, (FHC), are then carried out using Canute software. On receipt of suitable drawings of the building to be protected, the design engineers will start by adding fire sprinkler heads in accordance with the requirements of BS9251 and manufacturers recommendations. Designing the Sprinkler System for the BuildingĪll our designs take into account BS9251 and any other relevant technical/guidance documents. This process can take as little as a few hours to several weeks, depending on the size and complexity of the building.
Fire sprinkler design flow test software#
Then the pipe routes need to be worked out along with the diameter of the pipes.Īll this information is fed into software programs where fine tuning is carried to ensure compliance with the relevant standards.
Each sprinkler head must be positioned to ensure that the protected room is covered correctly as well as being sympathetic to the visual look of the ceiling as a whole. The design of a residential sprinkler system is more demanding than it first appears.
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