Dry riser

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Dry riser
Everything UK Building Owners Should Know About Dry Riser Systems, Servicing, and Compliance
A dry riser system is fitted vertically in the building, and contains an empty pipe, which water is fed to through the dry riser via the inlet which is usually at ground level near to the building entrance.
More Info : https://lebanonhub.app/blogs/1020001/Everything-UK-Building-Owners-Should-Know-About-Dry-Riser-Systems
Where's the Dry Riser?
Eaton Gardens, Hove
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Dry Risers (fire mains) are an important piece of equipment found in tall buildings to help minimise the risk of extensive fire damage. Buildings above 18m will tend to have dry risers fitted. Dry risers can be prone to serious neglect and even vandalism, to ensure that the fire mains are ready for immediate use in an emergency, British Standard 9990:2015 recommends that the system is visually inspected every six months and wet pressure tested annually.
For dry risers this normally entails connecting the inlet to a pump and water supply. The system is then completely charged with water to a pressure of 10 bar measured at the inlet for a period of at least 15 minutes. During this period an inspection is made to ensure that there is no leakage of water at any of the joints or landing valves. Once the pressure test is completed the system must be drained so that it is left ready for immediate use. In the event of system failure due to inability to hold pressure for the recommended 15 minutes at 10 bar (at the inlet), a retest will be required.
Project Installations M&P are proud to have recently completed a range of projects for the following clients: Fairview Homes: Colindale Hospital Brent Works Allum Lane Holtwhites Reservoir Keith Park Road HMS Belfast Norwich Hospital We have also agreed a maintenace contract with Portsmouth Council.