Butterfly valve - Revision history

Boilingleadbath: + cross section

2009-08-27T22:47:57Z

+ cross section

← Older revision		Revision as of 17:47, 27 August 2009
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			[[Image:Wbutterfly.png\|frame\|Cross-section of butterfly valve; A is barrel, B is seal, C is disk, and D is chamber. Note that sealing geometry is probably inaccurate.]]
	[[Image:Butterfly_valve.jpg\|frame\|A typical butterfly valve]]		[[Image:Butterfly_valve.jpg\|frame\|A typical butterfly valve]]
	A '''Butterfly valve''' is a type of flow control device, used to make a fluid start or stop flowing through a section of pipe. The [[valve]] is similar in operation to a [[ball valve]]. A flat circular plate is positioned in the center of the pipe. The plate has a rod through it connected to a handle on the outside of the valve. Rotating the handle turns the plate either parallel or perpendicular to the flow of water, shutting off the flow. It is a very robust and reliable design. However, unlike the ball valve, the plate does not rotate out of the flow of water, so that a [[pressure]] drop is induced in the flow.		A '''Butterfly valve''' is a type of flow control device, used to make a fluid start or stop flowing through a section of pipe. The [[valve]] is similar in operation to a [[ball valve]]. A flat circular plate is positioned in the center of the pipe. The plate has a rod through it connected to a handle on the outside of the valve. Rotating the handle turns the plate either parallel or perpendicular to the flow of water, shutting off the flow. It is a very robust and reliable design. However, unlike the ball valve, the plate does not rotate out of the flow of water, so that a [[pressure]] drop is induced in the flow.

Benstern: added links

2008-06-01T15:34:52Z

added links

← Older revision		Revision as of 10:34, 1 June 2008
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	[[Image:Butterfly_valve.jpg\|frame\|A typical butterfly valve]]		[[Image:Butterfly_valve.jpg\|frame\|A typical butterfly valve]]
	A '''Butterfly valve''' is a type of flow control device, used to make a fluid start or stop flowing through a section of pipe. The valve is similar in operation to a [[ball valve]]. A flat circular plate is positioned in the center of the pipe. The plate has a rod through it connected to a handle on the outside of the valve. Rotating the handle turns the plate either parallel or perpendicular to the flow of water, shutting off the flow. It is a very robust and reliable design. However, unlike the ball valve, the plate does not rotate out of the flow of water, so that a pressure drop is induced in the flow.		A '''Butterfly valve''' is a type of flow control device, used to make a fluid start or stop flowing through a section of pipe. The [[valve]] is similar in operation to a [[ball valve]]. A flat circular plate is positioned in the center of the pipe. The plate has a rod through it connected to a handle on the outside of the valve. Rotating the handle turns the plate either parallel or perpendicular to the flow of water, shutting off the flow. It is a very robust and reliable design. However, unlike the ball valve, the plate does not rotate out of the flow of water, so that a [[pressure]] drop is induced in the flow.

	These valves are typically used in applications where a very large valve is needed, such as pumpkin chucking and dams, and are available on ebay in sizes from roughly 2" to 10+". These are very cheap, with a 4" metal valve often selling for 50-20$ or less. Unfortunately, most butterfly valves use bolts to attach to the pluming system, requiring one to buy a flanged adapter or use ~~flanged~~ metal pipe.		These valves are typically used in applications where a very large valve is needed, such as pumpkin chucking and dams, and are available on ebay in sizes from roughly 2" to 10+". These are very cheap, with a 4" metal valve often selling for 50-20$ or less. Unfortunately, most butterfly valves use bolts to attach to the pluming system, requiring one to buy a flanged [[adapter]] or use [[flange]]d metal pipe.

	There are three types of butterfly valve:		There are three types of butterfly valve:

70.31.208.207: spelling

2006-03-04T22:39:30Z

spelling

← Older revision		Revision as of 17:39, 4 March 2006
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	A '''Butterfly valve''' is a type of flow control device, used to make a fluid start or stop flowing through a section of pipe. The valve is similar in operation to a [[ball valve]]. A flat circular plate is positioned in the center of the pipe. The plate has a rod through it connected to a handle on the outside of the valve. Rotating the handle turns the plate either parallel or perpendicular to the flow of water, shutting off the flow. It is a very robust and reliable design. However, unlike the ball valve, the plate does not rotate out of the flow of water, so that a pressure drop is induced in the flow.		A '''Butterfly valve''' is a type of flow control device, used to make a fluid start or stop flowing through a section of pipe. The valve is similar in operation to a [[ball valve]]. A flat circular plate is positioned in the center of the pipe. The plate has a rod through it connected to a handle on the outside of the valve. Rotating the handle turns the plate either parallel or perpendicular to the flow of water, shutting off the flow. It is a very robust and reliable design. However, unlike the ball valve, the plate does not rotate out of the flow of water, so that a pressure drop is induced in the flow.

	These valves are ~~typicaly~~ used in applications where a very large valve is needed, such as pumpkin chucking and dams, and are available on ebay in sizes from roughly 2" to 10+". These are very cheap, with a 4" metal valve often selling for 50-20$ or less. ~~Unfortunatly~~, most butterfly valves use bolts to attach to the pluming system, requiring one to buy a flanged adapter or use flanged metal pipe.		These valves are typically used in applications where a very large valve is needed, such as pumpkin chucking and dams, and are available on ebay in sizes from roughly 2" to 10+". These are very cheap, with a 4" metal valve often selling for 50-20$ or less. Unfortunately, most butterfly valves use bolts to attach to the pluming system, requiring one to buy a flanged adapter or use flanged metal pipe.

	There are three types of butterfly valve:		There are three types of butterfly valve:

Boilingleadbath: +unit conversions, pricing info, attachment methods

2006-01-27T23:10:00Z

+unit conversions, pricing info, attachment methods

← Older revision		Revision as of 18:10, 27 January 2006
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	[[Image:~~USPatent6518683~~.~~png~~\|~~right~~\|~~150px~~]]		[[Image:Butterfly_valve.jpg\|frame\|A typical butterfly valve]]
	A '''Butterfly valve''' is a type of flow control device, used to make a fluid start or stop flowing through a section of pipe. The valve is similar in operation to a [[ball valve]]. A flat circular plate is positioned in the center of the pipe. The plate has a rod through it connected to a handle on the outside of the valve. Rotating the handle turns the plate either parallel or perpendicular to the flow of water, shutting off the flow. It is a very robust and reliable design. However, unlike the ball valve, the plate does not rotate out of the flow of water, so that a pressure drop is induced in the flow.		A '''Butterfly valve''' is a type of flow control device, used to make a fluid start or stop flowing through a section of pipe. The valve is similar in operation to a [[ball valve]]. A flat circular plate is positioned in the center of the pipe. The plate has a rod through it connected to a handle on the outside of the valve. Rotating the handle turns the plate either parallel or perpendicular to the flow of water, shutting off the flow. It is a very robust and reliable design. However, unlike the ball valve, the plate does not rotate out of the flow of water, so that a pressure drop is induced in the flow.

			These valves are typicaly used in applications where a very large valve is needed, such as pumpkin chucking and dams, and are available on ebay in sizes from roughly 2" to 10+". These are very cheap, with a 4" metal valve often selling for 50-20$ or less. Unfortunatly, most butterfly valves use bolts to attach to the pluming system, requiring one to buy a flanged adapter or use flanged metal pipe.

	There are three types of butterfly valve:		There are three types of butterfly valve:
	# '''Resilient butterfly valve''' which has a flexible rubber seat. Working pressure up to 1.6 Mpa		# '''Resilient butterfly valve''' which has a flexible rubber seat. Working pressure up to 1.6 Mpa (232 psi)
	# '''High performance butterfly valve''' which is usually double eccentric in design . Working pressure up to 5.0 Mpa		# '''High performance butterfly valve''' which is usually double eccentric in design . Working pressure up to 5.0 Mpa (725 psi)
	# '''Tricentric butterfly valve''' which is usually with metal seated design. Working pressure up to 10.0 Mpa		# '''Tricentric butterfly valve''' which is usually with metal seated design. Working pressure up to 10.0 Mpa (1450 psi)

	== See also ==		== See also ==
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	* [[Globe valve]]		* [[Globe valve]]

	~~{{tech-stub}}~~		[[category:valves]]

	[[~~Category~~:~~Plumbing~~ valves]]

	~~[[de: Drosselklappe]]~~
	~~[[it:Valvola a farfalla~~]]

70.31.208.207: copied from wikipedia

2006-01-27T22:48:07Z

copied from wikipedia

← Older revision		Revision as of 17:48, 27 January 2006
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	~~wats~~ a ~~butterfly~~ valve, and ~~how~~ does ~~its~~ performance ~~realte~~ to a ~~sprinkler valve?~~		[[Image:USPatent6518683.png\|right\|150px]]
			A '''Butterfly valve''' is a type of flow control device, used to make a fluid start or stop flowing through a section of pipe. The valve is similar in operation to a [[ball valve]]. A flat circular plate is positioned in the center of the pipe. The plate has a rod through it connected to a handle on the outside of the valve. Rotating the handle turns the plate either parallel or perpendicular to the flow of water, shutting off the flow. It is a very robust and reliable design. However, unlike the ball valve, the plate does not rotate out of the flow of water, so that a pressure drop is induced in the flow.

			There are three types of butterfly valve:
			# '''Resilient butterfly valve''' which has a flexible rubber seat. Working pressure up to 1.6 Mpa
			# '''High performance butterfly valve''' which is usually double eccentric in design . Working pressure up to 5.0 Mpa
			# '''Tricentric butterfly valve''' which is usually with metal seated design. Working pressure up to 10.0 Mpa

			== See also ==
			* [[Ball valve]]
			* [[Gate valve]]
			* [[Globe valve]]

			{{tech-stub}}

			[[Category:Plumbing valves]]

			[[de: Drosselklappe]]
			[[it:Valvola a farfalla]]

64.187.34.123 at 05:11, 27 January 2006

2006-01-27T05:11:31Z

New page

wats a butterfly valve, and how does its performance realte to a sprinkler valve?