JPS56159581A - Pressure tank type water feeding device - Google Patents

Pressure tank type water feeding device

Info

Publication number
JPS56159581A
JPS56159581A JP6064880A JP6064880A JPS56159581A JP S56159581 A JPS56159581 A JP S56159581A JP 6064880 A JP6064880 A JP 6064880A JP 6064880 A JP6064880 A JP 6064880A JP S56159581 A JPS56159581 A JP S56159581A
Authority
JP
Japan
Prior art keywords
pump
water
pressure
throttle
pressure tank
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
JP6064880A
Other languages
Japanese (ja)
Inventor
Koichi Sato
Yasuhiro Mita
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 JP6064880A priority Critical patent/JPS56159581A/en
Publication of JPS56159581A publication Critical patent/JPS56159581A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To increase the setting and stopping pressures of a pump and make it possible to operate the pump up to a small quantity of water by providing a throttle pressure detection switch in a water feed route, in a water feeding device for feeding water to a pressure tank by automatic starting and stopping of the pump.
CONSTITUTION: The pressure within a pressure tank 4 increases with the reduction in the quantity of water used, and the quantity of water passing a throttle 5 decreases. At this time, a contact PS-2 of a pressure difference detection switch 7 is opened by the difference between pressures before and after the throttle 5 at the exhaustion side of a pump 1, and actuation of a driving switch M of the pump 1 is released, and the pump 1 comes to a stop. In this manner, since the pump 1 detects the difference between pressures before and after the throttle 5 and sets the stop pressure highly to stop the pump 1, no change is introduced in the water feed quantity upon stopping the pump 1 even when the characteristic of the pump is deteriorated.
COPYRIGHT: (C)1981,JPO&Japio
JP6064880A 1980-05-09 1980-05-09 Pressure tank type water feeding device Pending JPS56159581A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6064880A JPS56159581A (en) 1980-05-09 1980-05-09 Pressure tank type water feeding device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6064880A JPS56159581A (en) 1980-05-09 1980-05-09 Pressure tank type water feeding device

Publications (1)

Publication Number Publication Date
JPS56159581A true JPS56159581A (en) 1981-12-08

Family

ID=13148356

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6064880A Pending JPS56159581A (en) 1980-05-09 1980-05-09 Pressure tank type water feeding device

Country Status (1)

Country Link
JP (1) JPS56159581A (en)

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