Drenchers
Drenchers are a system of water heads that are used for the fire protection. In contrast to sprinklers which are found internally, drenchers are normally found on the exterior of a building to protect against a fire from a neighbouring building. They tend to be positioned on roofs and over windows and external openings.
Another difference between sprinklers and drenchers is that all nozzles in the drencher system are activated simultaneously, whereas individual nozzles in a sprinkler system open when activated.
A drencher system consists of the follows components:
- Water source.
- Pump unit.
- Distribution piping.
- Control fittings.
- Alarm device.
- Special nozzles or water head.
The water heads are like those of sprinklers and may be sealed or unsealed.
The three main types of drenchers are:
- Roof drenchers: Positioned on the roof ridge and throw a curtain of water upwards.
- Wall or curtain drenchers: Throw a curtain of water over openings or portions of a building most likely to admit fire.
- Window drenchers: Positioned horizontally level with the top of a window so as to protect the opening.
[edit] Related articles on Designing Buildings Wiki
- Business Sprinkler Alliance.
- Case study A for offices to show where automatic sprinklers have the greatest impact.
- Design benefits of automatic sprinkler systems granted under approved document B.
- External fire spread, Supplementary guidance to BR 187 incorporating probabilistic and time-based approaches.
- Fire detection and alarm system.
- Fire in buildings.
- Fire safety design.
- Making the case for sprinklers and dispelling myths.
- Sprinkler.
- Sprinkler head.
- The impact of automatic sprinklers on building design.
Featured articles
Check out some of the best features and news from Designing Buildings as well as key stories from around the web.
Listed structures on the rail network
Heritage interests and operational requirements must be balanced.
Historic England publishes research into embodied carbon when retrofitting traditional buildings.
New Prime Minister delivers on ECA call for cut in electricity costs.
CIOB reacts to the announcement of Andy Burnham as Prime Minister.
Heritage and conservation science workforce survey - Have your say.
England's Suburbs 1820-2020. Book review.
New, more proportionate and targeted approach for higher-risk building assessments.
Government brings British Steel into public ownership.
UKCW Birmingham returns with bold new theme and focus.
New guidance published on competence requirements for self-certification schemes.
Construction Management, 8 July
NEETs crisis drives interest in trades, but apprenticeships barriers remain.
Passive fire protection webinar
MEP services penetration seals.
Comments