590:; hysterisis issue. "Such flush tank valves as now commonly used are closed against the pressure of water from a source of supply which pressure opposes the movement of the float under rising water level in the tank. This results in a slow or delayed movement of the valve preliminary to its reaching its fully closed position and accordingly develops an objectionable hissing sound due to the discharge of water through the then slightly open valve under full water pressure; this delayed action continuing until the slowed delivery of water to the tank finally raises the water level to a point where the float will be effective in fully closing the valve. This action of the conventional float controlled valves frequently gives rise to a condition where full closing of the valve does not occur with a consequent continuous leakage of water through the valve with a resulting waste of water."
321:(British, cistern) 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.
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435:, which is integrated with the tank’s fill valve and so consumes less space. A later innovation, the floatless fill valve, designed for low-profile, low-flow toilet tanks, uses a pressure-sensing diaphragm mechanism instead of a float to control the inlet valve. Delay valves, which delay the filling until the level has dropped to a low level, avert short-cycling of the water supply.
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Toward 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
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This “anti-siphon” discharge mechanism contrasts with the earlier siphon (British, syphon) valve. This design uses a ballcock attached to a pivoting lever that opens and closes a plunger stem fitted with a washer that seals against a water inlet port. When activated, it creates a siphon that relies
298:, 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
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drain (in the siphon type). Although this does not stop the wastage of water, it prevents the flooding that would otherwise occur after a single-point valve failure. Typically the fill valve is secured by a ballcock shank
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on the weight of the water falling into the toilet to suck more water in from the tank and continues to empty the tank until the water in it falls below the inlet’s intake, breaking the siphon.
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The toilet ballcock, long made of brass and later made of plastic, was superseded by the float cup, pioneered in 1957 by the
Fluidmaster founder
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Saladino GarcĂa, Alberto. El sabio: JosĂ© Antonio Alzate y RamĂrez de
Santillana (Toluca, UAEM, 2001), PP. 42-43.
263:, while avoiding overflow and (in the event of low water pressure) backflow. The modern ballcock was invented by
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583:, Mueller, Paul G., "Ball cock valve mechanism", published 6 January 1955, issued 3 June 1958
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Note: These diagrams represent a configuration typical in the USA, mechanisms may vary in other countries .
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The
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International
Association of Plumbing and Mechanical Officials (IAPMO)
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The flapper has closed, and the tank refills within seconds.
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deal primarily with the United States and do not represent a
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or machine for filling water tanks, such as those found in
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153:. Unsourced material may be challenged and removed.
367:The handle is pressed and the flush cycle begins.
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475:(Volume 10 ed.). London. 1799. pp. 1–5
329:, which prevents leakage from the supply line.
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73:The examples and perspective in this article
53:Learn how and when to remove these messages
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294:. The valve is connected to the incoming
231:Learn how and when to remove this message
213:Learn how and when to remove this message
111:Learn how and when to remove this message
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2545:Plumbing & Drainage Institute (PDI)
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547:"Different Types of Toilet Fill Valves"
521:"Different Types of Toilet Fill Valves"
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1402:History of water supply and sanitation
1288:Sulabh International Museum of Toilets
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336:A traditional U.S. gravity toilet tank
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2495:Mechanical, electrical, and plumbing
151:adding citations to reliable sources
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1457:Workers' right to access the toilet
1407:Human right to water and sanitation
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1039:Toilet-related injuries and deaths
545:Formisano, Bob (2 December 2022).
519:Formisano, Bob (2 December 2022).
14:
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1815:Push-to-pull compression fittings
1253:Madison Museum of Bathroom Tissue
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34:This article has multiple issues.
16:Mechanism for filling water tanks
1417:Infection prevention and control
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265:JosĂ© Antonio de Alzate y RamĂrez
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1005:Privatization of public toilets
575:Introduction to ballcock valves
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269:Gaceta de Literatura MĂ©xicana
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1881:Atmospheric vacuum breaker
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398:. flush valve flapper,
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1706:British Standard Pipe
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1298:Toilet History Museum
1248:Hundertwasser Toilets
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495:"What is a Ballcock?"
314:When the handle of a
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1313:Bryant Park restroom
1161:Urinal (health care)
980:Honeywagon (vehicle)
419:. fill valve shaft,
304:proportional control
147:improve this article
93:create a new article
85:improve this article
2627:Template:Wastewater
2485:Hydrostatic testing
2126:Rooftop water tower
1722:Compression fitting
1412:Improved sanitation
1263:National Poo Museum
1207:Defecation postures
1068:Jobs and activities
970:Bathroom privileges
926:Urine-diverting dry
604:; hysterisis issue.
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2081:Pressure regulator
1976:Double check valve
1951:Concentric reducer
1752:Garden Hose Thread
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1515:Air gap (plumbing)
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1080:Restroom attendant
394:. bowl fill tube,
390:. tank fill tube,
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2617:Template:Sewerage
2564:Health and safety
2540:NSF International
2350:Specialized tools
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2196:Plumbing fixtures
2076:Plug (sanitation)
2061:Nipple (plumbing)
1981:Eccentric reducer
1961:Coupling (piping)
1926:Chemigation valve
1779:Nominal Pipe Size
1742:Ductile iron pipe
1640:Thermal expansion
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703:Toilet seat riser
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273:Edmund Cartwright
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433:Adolf Schoepe
423:. flush tube
422:
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415:. fill line,
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310:Flush Toilets
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261:flush toilets
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164: –
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159:
158:Find sources:
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136:This article
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35:
30:
21:
20:
2500:Pipe marking
2473:and services
2469:Professions,
2417:Strap wrench
2357:Basin wrench
2336:Water heater
2331:Water filter
2244:Flush toilet
2219:Dehumidifier
2161:Trench drain
2141:Street elbow
2131:Safety valve
2116:Relief valve
2056:Needle valve
2041:Grinder pump
2011:Flow limiter
1996:Float switch
1931:Chopper pump
1911:Booster pump
1860:Tube bending
1805:Pipe support
1670:Water hammer
1650:Thermosiphon
1580:Neutral axis
1376:Privy midden
1197:Anal hygiene
1090:Slopping out
1059:Vacuum truck
1034:Toilet plume
1024:
965:Adult diaper
951:Cultural and
835:Incinerating
720:Toilet paper
668:Bidet shower
652:
554:. Retrieved
550:
540:
528:. Retrieved
524:
514:
502:. Retrieved
499:wisegeek.com
498:
489:
477:. Retrieved
471:
465:
456:
442:
439:Siphon valve
430:
420:
416:
412:
408:
404:
400:
395:
391:
387:
386:. lift arm,
383:
379:
375:
335:
323:
316:flush toilet
313:
296:water supply
291:
277:
268:
252:
248:
244:
242:
227:
209:
200:
190:
183:
176:
169:
157:
145:Please help
140:verification
137:
107:
98:
74:
50:
43:
37:
36:Please help
33:
2445:Flow sensor
2433:and control
2431:Measurement
2422:Tap and die
2397:Pipe wrench
2382:Driving cap
2274:Laundry tub
2151:Tap (valve)
2136:Sewage pump
2121:Riser clamp
2066:Pinch valve
2036:Grease trap
2031:Globe valve
2021:Flushometer
2006:Floor drain
2001:Float valve
1921:Check valve
1906:Bleed screw
1680:Water table
1620:Storm sewer
1506:Fundamental
1371:Pail closet
1356:Gong farmer
1341:Close stool
1336:Chamber pot
1283:Shit Museum
936:Vermifilter
840:Intelligent
730:Orientation
693:Flushometer
319:with a tank
253:float valve
2642:Categories
2505:Pipefitter
2392:Pipecutter
2372:Core drill
2259:Humidifier
2224:Dishwasher
2186:Zone valve
2181:Water tank
2026:Gate valve
1901:Ball valve
1874:Components
1694:Technology
1665:Wastewater
1625:Stormwater
1432:Sanitation
1381:Reredorter
1366:Night soil
1202:Defecation
1015:Toilet god
1000:Latrinalia
960:Accessible
916:Telescopic
831:(Scouting)
803:Dual flush
788:Composting
581:US 2837111
551:The Spruce
525:The Spruce
504:5 November
479:5 November
448:References
173:newspapers
162:"Ballcock"
39:improve it
2524:Industry
2510:Pipelayer
2367:Borescope
2362:Blowtorch
2301:Sump pump
1835:Soldering
1800:Pipe dope
1763:Hydronics
1635:Tap water
1600:Sewer gas
1565:Heat trap
1560:Greywater
1530:Corrosion
1351:Garderobe
1278:Rest area
1243:Haewoojae
1227:Scatology
1166:Urination
1146:Sanistand
1100:Toileting
895:Sanisette
850:Low-flush
646:Equipment
595:US 418162
556:3 January
530:3 January
411:. chain,
378:. float,
257:mechanism
203:June 2013
101:June 2015
89:talk page
45:talk page
2590:See also
2576:Scalding
2264:Icemaker
2051:Manifold
1610:Sewerage
1590:Pressure
1545:Fuel gas
1520:Backflow
1508:concepts
1499:Plumbing
1390:See also
1331:Aphedron
1268:Outhouse
1136:Pee curl
880:Portable
855:On-board
818:Freezing
783:Chemical
763:Arborloo
758:Aircraft
653:Ballcock
292:ballcock
245:ballcock
83:You may
2515:Plumber
2471:trades,
2412:Plunger
2321:Washlet
2209:Bathtub
2111:Reducer
1941:Cistern
1845:Swaging
1825:Sealant
1701:Brazing
1346:Dansker
1131:Pissoir
995:Istinja
941:Washlet
921:Treebog
845:Latrine
808:EToilet
778:Cathole
683:Commode
678:Cistern
639:Toilets
302:and of
255:) is a
249:balltap
187:scholar
2602:Piping
2311:Urinal
2279:Shower
1785:O-ring
1758:Gasket
1615:Siphon
1605:Sewage
1236:Places
1151:Urinal
1141:Pollee
931:Vacuum
890:Public
825:(boat)
773:Bucket
710:Toilet
658:Bedpan
601:
587:
327:washer
247:(also
189:
182:
175:
168:
160:
2214:Bidet
2176:Valve
1820:Putty
1790:Oakum
1781:(NPS)
1775:(NPT)
1754:(GHT)
1708:(BSP)
911:Squat
906:Space
885:Potty
813:Flush
768:Blair
751:Types
673:Brush
663:Bidet
288:lever
284:float
280:valve
194:JSTOR
180:books
91:, or
2291:Sink
2096:Pump
1685:Well
1575:Leak
901:Sink
829:Hudo
823:Head
698:Seat
558:2024
532:2024
506:2017
481:2017
166:news
875:Pit
870:Pig
865:Pay
798:Dry
251:or
149:by
2644::
549:.
523:.
497:.
421:12
417:11
413:10
306:.
275:.
243:A
48:.
1491:e
1484:t
1477:v
631:e
624:t
617:v
560:.
534:.
508:.
483:.
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376:1
234:)
228:(
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210:(
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201:(
191:·
184:·
177:·
170:·
143:.
114:)
108:(
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99:(
81:.
55:)
51:(
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
