JPS5260412A - Automatic well pump - Google Patents

Automatic well pump

Info

Publication number
JPS5260412A
JPS5260412A JP13621475A JP13621475A JPS5260412A JP S5260412 A JPS5260412 A JP S5260412A JP 13621475 A JP13621475 A JP 13621475A JP 13621475 A JP13621475 A JP 13621475A JP S5260412 A JPS5260412 A JP S5260412A
Authority
JP
Japan
Prior art keywords
pump
well pump
automatic well
pressure
reducing valve
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.)
Pending
Application number
JP13621475A
Other languages
Japanese (ja)
Inventor
Akira Nakasuji
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.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP13621475A priority Critical patent/JPS5260412A/en
Publication of JPS5260412A publication Critical patent/JPS5260412A/en
Pending legal-status Critical Current

Links

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  • Control Of Non-Positive-Displacement Pumps (AREA)

Abstract

PURPOSE: Provision of an automatic well pump having a pressure reducing valve connected between the pump and a pressure tank, said pressure reducing valve providing therein a small hole through which the upperstream and downstream sides are permanently in communication with each other so that the deliverly pressure be kept constant while the pump is adapted to stop its operation when the pumping delivery of water is reduced to zero.
COPYRIGHT: (C)1977,JPO&Japio
JP13621475A 1975-11-14 1975-11-14 Automatic well pump Pending JPS5260412A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13621475A JPS5260412A (en) 1975-11-14 1975-11-14 Automatic well pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13621475A JPS5260412A (en) 1975-11-14 1975-11-14 Automatic well pump

Publications (1)

Publication Number Publication Date
JPS5260412A true JPS5260412A (en) 1977-05-18

Family

ID=15169964

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13621475A Pending JPS5260412A (en) 1975-11-14 1975-11-14 Automatic well pump

Country Status (1)

Country Link
JP (1) JPS5260412A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52153211A (en) * 1976-06-15 1977-12-20 Mitsubishi Electric Corp Automatic pumping device
JPS5452334A (en) * 1977-09-30 1979-04-24 Mitsubishi Electric Corp Valve apparatus with slit

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52153211A (en) * 1976-06-15 1977-12-20 Mitsubishi Electric Corp Automatic pumping device
JPS5452334A (en) * 1977-09-30 1979-04-24 Mitsubishi Electric Corp Valve apparatus with slit

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