GB1203169A - Automatic switch and valve device for use with a pump in a water supply - Google Patents

Automatic switch and valve device for use with a pump in a water supply

Info

Publication number
GB1203169A
GB1203169A GB6145268A GB6145268A GB1203169A GB 1203169 A GB1203169 A GB 1203169A GB 6145268 A GB6145268 A GB 6145268A GB 6145268 A GB6145268 A GB 6145268A GB 1203169 A GB1203169 A GB 1203169A
Authority
GB
United Kingdom
Prior art keywords
pump
water
diaphragm
valve device
automatic switch
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB6145268A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Saunier Duval SA
Original Assignee
Saunier Duval SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Saunier Duval SA filed Critical Saunier Duval SA
Publication of GB1203169A publication Critical patent/GB1203169A/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
    • E03B5/00—Use of pumping plants or installations; Layouts thereof
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
    • F04D15/02—Stopping of pumps, or operating valves, on occurrence of unwanted conditions
    • F04D15/0209—Stopping of pumps, or operating valves, on occurrence of unwanted conditions responsive to a condition of the working fluid

Landscapes

  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Public Health (AREA)
  • Water Supply & Treatment (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Reciprocating Pumps (AREA)
  • Feeding And Controlling Fuel (AREA)

Abstract

1,203,169. Valves. SAUNIER DUVAL. 24 Dec., 1968 [28 Dec., 1967], No. 61452/68. Heading F2V. [Also in Divisions F1 and H1] An automatic switch and valve device connectible in flow series with a pump 2, e.g. for use with gas-operated instantaneous water heaters, comprises a water inlet 8 and an outlet. When water is withdrawn from the outlet, e.g. via a tap, the fall in pressure in a chamber 6 causes a diaphragm 9 to move to the right to close a switch 29 and thereby start the driving motor (not shown) of the pump. Operation of the pump rapidly increases the pressure difference across the diaphragm which therefore moves to its limit position wherein a perforated cylinder 13 abuts the adjacent one of a pair of flanges 15. Moreover, a spring-controlled valve 18 opens to permit inlet water to flow to the pump. A safety hole 21 in the valve prevents the creation of a pressure difference across the diaphragm when only a small amount of water is withdrawn, e.g. due to a leaking tap. At least some of the components may be of plastics material.
GB6145268A 1967-12-28 1968-12-24 Automatic switch and valve device for use with a pump in a water supply Expired GB1203169A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR134060 1967-12-28

Publications (1)

Publication Number Publication Date
GB1203169A true GB1203169A (en) 1970-08-26

Family

ID=8643831

Family Applications (1)

Application Number Title Priority Date Filing Date
GB6145268A Expired GB1203169A (en) 1967-12-28 1968-12-24 Automatic switch and valve device for use with a pump in a water supply

Country Status (3)

Country Link
BE (1) BE725391A (en)
FR (1) FR1557126A (en)
GB (1) GB1203169A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2156002A (en) * 1984-03-14 1985-10-02 Copeland Corp Lubricant pump with pressure sensor
GB2197687A (en) * 1986-11-25 1988-05-25 Water Res Centre Operational pump control

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2156002A (en) * 1984-03-14 1985-10-02 Copeland Corp Lubricant pump with pressure sensor
GB2197687A (en) * 1986-11-25 1988-05-25 Water Res Centre Operational pump control
GB2197687B (en) * 1986-11-25 1991-06-26 Water Res Centre Operational pump control

Also Published As

Publication number Publication date
BE725391A (en) 1969-05-16
DE1816123B2 (en) 1976-03-04
DE1816123A1 (en) 1969-07-24
FR1557126A (en) 1969-02-14

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee