- Dry riser
A dry riser is a main vertical pipe intended to distribute water to multiple levels of a building or structure as a component of the fire suppression systems. The pipe is maintained empty of water. The dry riser is the opposite of a "wet riser" or "wet standpipe" system where the pipes are kept full of water for manual or automatic fire fighting operations. Dry risers have to have fire engine access within 18m of the dry riser inlet box. (In the UK they are controlled by the Building (Minimum Standards) Regulations 2000. Dry Risers in occupied buildings have to be within a fire resistant shaft, usually one of a building's fire escape staircase enclosures.) Depending on regional nomenclature, this may refer to a standpipe, intended to provide water to hose connections, or could refer to a vertical main pipe in an automatic dry pipe fire sprinkler system.
A dry standpipe includes a fire department connection which is an external access point at ground level through which water can be pumped from the fire department's fire engine pump to firefighters' hose attachments on each floor.
Dry Pipe Fire Sprinkler System
A dry pipe fire sprinkler system is one in which pipes are filled with pressurized air, rather than water. This air holds a remote valve, known as a dry pipe valve, in a closed position. Located in a heated space, the dry-pipe valve prevents water from entering the pipe until a fire causes one or more sprinklers to operate. Once this happens, the air escapes and the dry pipe valve releases. Water then enters the pipe, flowing through open sprinklers onto the fire.
Wikimedia Foundation. 2010.
Look at other dictionaries:
dry riser — noun A vertical pipe with an outside access through which water can be pumped from the street to the individual floors of a building in the event of a fire • • • Main Entry: ↑dry … Useful english dictionary
dry riser — noun A main vertical pipe, usually kept empty, intended to distribute water to multiple levels of a building in the event of a fire … Wiktionary
Dry Riser (song) — Dry Riser Single by Kerbdog from the album Kerbdog Released January 1994 … Wikipedia
Glossary of firefighting equipment — Note: This list is incomplete. You can help Wikipedia by [http://en.wikipedia.org/w/index.php?title=Glossary of firefighting equipment action=edit adding to it] . 0 9 * 1 3/4 inch hose: see attack hose * 2 1/2 inch hose: see attack hose , supply… … Wikipedia
Standpipe (firefighting) — For other uses, see Standpipe (disambiguation). External access point for fire sprinkler and dry standpipe at a building in San Francisco, United States. In North America, a standpipe is a type of rigid water piping which is built into multi… … Wikipedia
Kerbdog — Infobox musical artist Name = Kerbdog Img capt = A picture of Colin Fennelly, Darragh Butler and Cormac Battle from the back of the Mexican Wave single. Background = group or band Origin = Kilkenny, Ireland Genre = Alternative rock/Grunge Years… … Wikipedia
Dummy Crusher — Single by Kerbdog from the album Kerbdog Released July 1994 … Wikipedia
Mexican Wave (song) — Mexican Wave Single by Kerbdog from the album On the Turn Released March 17 … Wikipedia
Kerbdog — Este artículo o sección necesita una revisión de ortografía y gramática. Puedes colaborar editándolo (lee aquí sugerencias para mejorar tu ortografía). Cuando se haya corregido, borra este aviso por favor … Wikipedia Español
List of architecture topics — This page aims to list all topics related to architecture. This is so that those interested in the subject can monitor changes to the pages by clicking on Related changes in the sidebar. It is also to see the gaps in Wikipedia s coverage of the… … Wikipedia