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- Ballcock abstract "A ballcock (also balltap or float valve) is a mechanism or machine for filling water tanks, such as those found in flush toilets, while avoiding overflow and (in the event of low water pressure) backflow. The modern ballcock was invented by José Antonio de Alzate y Ramírez, a Mexican priest and scientist, who described the device in 1790 in the Gaceta de Literatura Méxicana. It consists of a valve connected to a hollow sealed float by means of a lever, mounted near the top of the tank. The float is often ball-shaped, hence the name ballcock. The valve is connected to the incoming water supply, and is opened and closed by the lever which has the float mounted on the end. When the water level rises, the float rises with it; once it rises to a pre-set level, the mechanism forces the lever to close the valve and shut off the water flow. This is an example of negative feedback and of proportional control.When a toilet's handle is turned, a discharge mechanism is activated by means of a rod or chain. The mechanism may be a flapper valve, which is designed to sink more slowly than the water, which will exit to the toilet bowl below, so that the tank may empty. As the tank water level drops, the float descends and actuates the fill valve. Water is fed to the tank to replenish its supply, and a smaller flow is directed into the overflow tube to refill the bowl. Once the flapper valve closes, the water flow from the fill valve continues until the tank level again reaches the fill line. Another discharge mechanism, common in the United Kingdom, is a siphon. The rod or chain lifts a piston that pulls an initial charge of water up into the siphon. When the column of water passes over the siphon bend and starts to fall down the exit pipe, the siphon action continues to empty the tank until the water in the tank falls below the siphon intake. Towards the end of the discharge process, the ballcock responds to the drop in water level and refills the tank. Should the float or valve fail and allow the water level to exceed the fill line, the water will pour into the overflow tube and out to the bowl (in the flapper valve type) or to an outside drain (in the siphon type). Although this wastes water, it avoids the flooding that would otherwise occur after a single-point valve failure.These devices are sold at most hardware, plumbing supply, and home improvement stores.".
- Ballcock thumbnail Gravity_toilet_valves_at_rest.svg?width=300.
- Ballcock wikiPageExternalLink ballcock-valve.html.
- Ballcock wikiPageID "1107239".
- Ballcock wikiPageLength "5104".
- Ballcock wikiPageOutDegree "17".
- Ballcock wikiPageRevisionID "670213873".
- Ballcock wikiPageWikiLink Category:Plumbing_valves.
- Ballcock wikiPageWikiLink Category:Toilet_components.
- Ballcock wikiPageWikiLink Float_(liquid_level).
- Ballcock wikiPageWikiLink Flush_toilet.
- Ballcock wikiPageWikiLink Hardware_store.
- Ballcock wikiPageWikiLink José_Antonio_de_Alzate_y_Ramírez.
- Ballcock wikiPageWikiLink Lever.
- Ballcock wikiPageWikiLink Mechanism_(engineering).
- Ballcock wikiPageWikiLink Negative_feedback.
- Ballcock wikiPageWikiLink Plumbing.
- Ballcock wikiPageWikiLink Proportional_control.
- Ballcock wikiPageWikiLink Siphon.
- Ballcock wikiPageWikiLink Valve.
- Ballcock wikiPageWikiLink Water_supply.
- Ballcock wikiPageWikiLink File:Gravity_toilet_valves_at_rest.svg.
- Ballcock wikiPageWikiLink File:Gravity_toilet_valves_handle_down.svg.
- Ballcock wikiPageWikiLink File:Gravity_toilet_valves_handle_released.svg.
- Ballcock wikiPageWikiLinkText "Ballcock".
- Ballcock wikiPageWikiLinkText "Float valve".
- Ballcock wikiPageWikiLinkText "ballcock".
- Ballcock wikiPageWikiLinkText "float proportioning valve".
- Ballcock hasPhotoCollection Ballcock.
- Ballcock wikiPageUsesTemplate Template:Citation.
- Ballcock wikiPageUsesTemplate Template:Citation_needed.
- Ballcock wikiPageUsesTemplate US.
- Ballcock wikiPageUsesTemplate Template:Refimprove.
- Ballcock wikiPageUsesTemplate Template:Reflist.
- Ballcock wikiPageUsesTemplate Template:Toilets.
- Ballcock subject Category:Plumbing_valves.
- Ballcock subject Category:Toilet_components.
- Ballcock hypernym Mechanism.
- Ballcock type Article.
- Ballcock type Organisation.
- Ballcock type Article.
- Ballcock type Component.
- Ballcock comment "A ballcock (also balltap or float valve) is a mechanism or machine for filling water tanks, such as those found in flush toilets, while avoiding overflow and (in the event of low water pressure) backflow. The modern ballcock was invented by José Antonio de Alzate y Ramírez, a Mexican priest and scientist, who described the device in 1790 in the Gaceta de Literatura Méxicana. It consists of a valve connected to a hollow sealed float by means of a lever, mounted near the top of the tank.".
- Ballcock label "Ballcock".
- Ballcock sameAs صمام_عوامة.
- Ballcock sameAs Plovákový_ventil.
- Ballcock sameAs Svømmerventil.
- Ballcock sameAs Schwimmerventil.
- Ballcock sameAs Spłuczka_toaletowa.
- Ballcock sameAs m.046l7g.
- Ballcock sameAs Q694481.
- Ballcock sameAs Q694481.
- Ballcock wasDerivedFrom Ballcock?oldid=670213873.
- Ballcock depiction Gravity_toilet_valves_at_rest.svg.
- Ballcock isPrimaryTopicOf Ballcock.