Sprinkler head - Revision history

Editor at 07:59, 21 October 2020

2020-10-21T07:59:23Z

← Older revision		Revision as of 07:59, 21 October 2020
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	* Drenchers.		* Drenchers.
	* Fire safety design.		* Fire safety design.
		+	* Leading built environment bodies call for sprinklers in all schools.
	* Overview of automatic sprinkler system design and operation.		* Overview of automatic sprinkler system design and operation.
	* Sprinkler.		* Sprinkler.

Designing Buildings at 06:08, 13 October 2020

2020-10-13T06:08:14Z

Editor at 18:14, 12 October 2020

2020-10-12T18:14:10Z

← Older revision		Revision as of 18:14, 12 October 2020
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−	[[File:SprinklerHead.jpg]]	+	[[File:SprinklerHead.jpg\|link=File:SprinklerHead.jpg]]

	= Introduction =		= Introduction =
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	* Fire safety design.		* Fire safety design.
	* Overview of automatic sprinkler system design and operation.		* Overview of automatic sprinkler system design and operation.
		+	* Sprinkler.
	* The impact of automatic sprinklers on building design.		* The impact of automatic sprinklers on building design.

	[[Category:DCN_Product_Knowledge]] [[Category:Health_and_safety_/_CDM]] [[Category:Products_/_components]]		[[Category:DCN_Product_Knowledge]] [[Category:Health_and_safety_/_CDM]] [[Category:Products_/_components]]

Editor at 18:10, 12 October 2020

2020-10-12T18:10:20Z

← Older revision		Revision as of 18:10, 12 October 2020
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		+	[[File:SprinklerHead.jpg]]
		+
	= Introduction =		= Introduction =

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	Sprinkler heads normally activate at 68°C. Each sprinkler head acts as its own heat detector and only those in the fire area will be activated. An individual sprinkler head typically covers approximately 9m2.		Sprinkler heads normally activate at 68°C. Each sprinkler head acts as its own heat detector and only those in the fire area will be activated. An individual sprinkler head typically covers approximately 9m2.

−	The flow of water from the sprinkler head is distributed by a flower-shaped deflector device directly below the sprinkler. This shape is designed to control the flow of the water so it is evenly distributed in an effective manner ~~for the location~~.	+	The flow of water from the sprinkler head is distributed by a flower-shaped deflector device directly below the sprinkler. This shape is designed to control the flow of the water so it is evenly distributed in an effective manner.
		+
		+	= Sprinkler head variations =

−	~~= Types of~~ sprinkler heads =	+	There are quick response (QR) fire sprinkler heads which have a smaller ampule so they can activate in a shorter period of time. These devices distribute water across the ceiling or down walls as a method of controlling the fire by preventing it from rising.

−	~~There are quick response (~~QR~~) fire~~ sprinkler heads ~~which have a smaller ampule so they can activate quicker. These devices distribute water across the ceiling or down walls as a method of controlling the fire by preventing it from rising. They~~ tend to be used in places where many people may be present and life safety is a priority. Standard response sprinkler heads tend to be used in facilities where the priority is to protect the contents of a building.	+	QR sprinkler heads tend to be used in places where many people may be present and life safety is a priority. Standard response sprinkler heads tend to be used in facilities where the priority is to protect the contents of a building.

	There are several different sprinkler head orientation options. The most common are:		There are several different sprinkler head orientation options. The most common are:
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	* Upright heads spray water upward to a concave deflector, producing a dome-shaped spray pattern.		* Upright heads spray water upward to a concave deflector, producing a dome-shaped spray pattern.
	* Sidewall heads have a semicircular deflector that produces a crescent-shaped spray pattern.		* Sidewall heads have a semicircular deflector that produces a crescent-shaped spray pattern.
−	* Concealed heads are pendant or sidewall sprinkler heads that have been covered with a fire sprinkler cover plate ~~which~~ lowers when a certain temperature has been reached. The fire sprinkler head is then revealed ~~to a position~~ so ~~it can~~ activate.	+	* Concealed heads are pendant or sidewall sprinkler heads that have been covered with a fire sprinkler cover plate. This cover lowers when a certain temperature has been reached. The fire sprinkler head is then revealed and positioned so is is able to activate.

	= Related articles on Designing Buildings Wiki =		= Related articles on Designing Buildings Wiki =

Editor: Created page with "= Introduction = An automatic sprinkler system consists of water supply (tank, pump and valves) and sprinkler installation (pipes and heads). Almost all buildings over 30m high ..."

2020-10-12T18:03:07Z

Created page with "= Introduction = An automatic sprinkler system consists of water supply (tank, pump and valves) and sprinkler installation (pipes and heads). Almost all buildings over 30m high ..."

New page

= Introduction =

An automatic sprinkler system consists of water supply (tank, pump and valves) and sprinkler installation (pipes and heads). Almost all buildings over 30m high must be fitted with a sprinkler system installed in accordance with the appropriate British Standards.

The specifications of the design depend primarily on the hazard classification of the occupancy of the building. The specifications include head spacing dimensions, assumed area of maximum operation (number of heads in-operation), design density (water discharge), water supply period and tank volume.

= How do sprinkler heads work? =

Sprinkler heads are heat sensitive devices that are part of an automatic sprinkler system. A typical sprinkler head consists of a plug, a glass ampule or other trigger mechanism, a deflector, cap and a frame.

The system’s heat sensitive element can be constructed from soldered links or glass bulbs containing various liquids. Some sprinkler head ampules contain a mixture of alcohol and water or glycerin and water. When hot air reaches the ceiling, this liquid expands, causing the container to break and activate the sprinkler head so it can distribute water and ideally extinguish the fire.

Sprinkler heads normally activate at 68°C. Each sprinkler head acts as its own heat detector and only those in the fire area will be activated. An individual sprinkler head typically covers approximately 9m2.

The flow of water from the sprinkler head is distributed by a flower-shaped deflector device directly below the sprinkler. This shape is designed to control the flow of the water so it is evenly distributed in an effective manner for the location.

= Types of sprinkler heads =

There are quick response (QR) fire sprinkler heads which have a smaller ampule so they can activate quicker. These devices distribute water across the ceiling or down walls as a method of controlling the fire by preventing it from rising. They tend to be used in places where many people may be present and life safety is a priority. Standard response sprinkler heads tend to be used in facilities where the priority is to protect the contents of a building.

There are several different sprinkler head orientation options. The most common are:

* Pendant heads use a convex deflector to distribute water in a domed or conical pattern.
* Upright heads spray water upward to a concave deflector, producing a dome-shaped spray pattern.
* Sidewall heads have a semicircular deflector that produces a crescent-shaped spray pattern.
* Concealed heads are pendant or sidewall sprinkler heads that have been covered with a fire sprinkler cover plate which lowers when a certain temperature has been reached. The fire sprinkler head is then revealed to a position so it can activate.

= Related articles on Designing Buildings Wiki =

* Costs of water automatic sprinkler systems.
* Drenchers.
* Fire safety design.
* Overview of automatic sprinkler system design and operation.
* The impact of automatic sprinklers on building design.

[[Category:DCN_Product_Knowledge]] [[Category:Health_and_safety_/_CDM]] [[Category:Products_/_components]]

← Older revision		Revision as of 06:08, 13 October 2020
Line 3:		Line 3:
	= Introduction =		= Introduction =

−	An automatic sprinkler system consists of water supply (tank, pump and valves) and sprinkler installation (pipes and heads). Almost all buildings over 30m high must be fitted with a sprinkler system installed in accordance with the appropriate British Standards.	+	An automatic sprinkler system consists of a water supply (tank, pump and valves) and sprinkler installation (pipes and heads). Almost all buildings over 30m high must be fitted with a sprinkler system installed in accordance with the appropriate British Standards.

−	The ~~specifications~~ of the design ~~depend~~ primarily on the hazard classification of the occupancy of the building. The specifications include head spacing dimensions, assumed area of maximum operation (number of heads in-operation), design density (water discharge), water supply period and tank volume.	+	The specification of the design depends primarily on the hazard classification of the occupancy of the building. The specifications include head spacing dimensions, assumed area of maximum operation (number of heads in-operation), design density (water discharge), water supply period and tank volume.

	= How do sprinkler heads work? =		= How do sprinkler heads work? =

−	Sprinkler heads are heat sensitive devices that ~~are part of an automatic sprinkler system. A typical sprinkler head consists~~ of a plug, a glass ampule or other trigger mechanism, a deflector, cap and a frame.	+	Sprinkler heads are heat sensitive devices that consist of a plug, a glass ampule or other trigger mechanism, deflector, cap and frame.

−	The system’s heat sensitive element can be constructed from soldered links or glass bulbs containing various liquids. Some sprinkler head ampules contain a mixture of alcohol and water or glycerin and water. When hot air reaches the ceiling, this liquid expands, causing the container to break and activate the sprinkler head so it can distribute water and ~~ideally~~ extinguish the fire.	+	The system’s heat sensitive element can be constructed from soldered links or glass bulbs containing various liquids. Some sprinkler head ampules contain a mixture of alcohol and water or glycerin and water. When hot air reaches the ceiling, this liquid expands, causing the container to break and activate the sprinkler head so it can distribute water and extinguish the fire.

−	Sprinkler heads normally activate at 68°C. Each sprinkler head acts as its own heat detector and only those in the ~~fire~~ area will be activated. An individual sprinkler head typically covers ~~approximately 9m2~~.	+	Sprinkler heads normally activate at 68°C. Each sprinkler head acts as its own heat detector and only those in the area of the fire will be activated. An individual sprinkler head typically covers 9m².

−	The flow of water from the sprinkler head is distributed by a flower-shaped deflector device directly below the sprinkler. This shape is designed to control the flow of the water so it is evenly distributed ~~in an effective manner~~.	+	The flow of water from the sprinkler head is generally distributed by a flower-shaped deflector device directly below the sprinkler. This shape is designed to control the flow of the water so it is evenly distributed.

	= Sprinkler head variations =		= Sprinkler head variations =

−	There are quick response (QR) fire sprinkler heads which have a smaller ampule so they can activate in a shorter period of time. These devices distribute water across the ceiling or down walls as a method of controlling ~~the~~ fire by preventing it from rising.	+	There are quick response (QR) fire sprinkler heads which have a smaller ampule so they can activate in a shorter period of time. These devices typically distribute water across the ceiling or down walls as a method of controlling fire by preventing it from rising.

−	QR sprinkler heads tend to be used in places where many people may be present and life safety is a priority. Standard response sprinkler heads tend to be used in facilities where ~~the priority~~ is to protect the contents of a building.	+	QR sprinkler heads tend to be used in places where many people may be present and life safety is a priority.
		+
		+	Standard response sprinkler heads tend to be used in facilities where there is a greater need to protect the contents of a building.

	There are several different sprinkler head orientation options. The most common are:		There are several different sprinkler head orientation options. The most common are:

	* Pendant heads use a convex deflector to distribute water in a domed or conical pattern.		* Pendant heads use a convex deflector to distribute water in a domed or conical pattern.
−	* Upright heads spray water ~~upward~~ to a concave deflector, producing a dome-shaped spray pattern.	+	* Upright heads spray water upwards to a concave deflector, producing a dome-shaped spray pattern.
	* Sidewall heads have a semicircular deflector that produces a crescent-shaped spray pattern.		* Sidewall heads have a semicircular deflector that produces a crescent-shaped spray pattern.
−	* Concealed heads are pendant or sidewall sprinkler heads that have been covered with a fire sprinkler cover plate. This cover lowers when a certain temperature has been reached. The fire sprinkler head is then revealed ~~and positioned~~ so is is able to activate.	+	* Concealed heads are pendant or sidewall sprinkler heads that have been covered with a fire sprinkler cover plate. This cover lowers when a certain temperature has been reached. The fire sprinkler head is then revealed so it is able to activate.

	= Related articles on Designing Buildings Wiki =		= Related articles on Designing Buildings Wiki =