JPS5565770A - Ball valve - Google Patents

Ball valve

Info

Publication number
JPS5565770A
JPS5565770A JP13673178A JP13673178A JPS5565770A JP S5565770 A JPS5565770 A JP S5565770A JP 13673178 A JP13673178 A JP 13673178A JP 13673178 A JP13673178 A JP 13673178A JP S5565770 A JPS5565770 A JP S5565770A
Authority
JP
Japan
Prior art keywords
valve unit
valve
boss
bush
hydraulic pressure
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
JP13673178A
Other languages
Japanese (ja)
Inventor
Morimichi Shinohara
Tetsuya Teramoto
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 JP13673178A priority Critical patent/JPS5565770A/en
Publication of JPS5565770A publication Critical patent/JPS5565770A/en
Pending legal-status Critical Current

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Abstract

PURPOSE: To make overall shape of the ball valve small in size, with a strength stabilized, by separately arranging the bearing, for supporting a hydraulic pressure acted upon the valve unit, and the stem to apply a rotary operational force to the valve unit.
CONSTITUTION: In both sides of a valve unit 31, built-in provided in a valve barrel 21, is constructed a valve unit boss 32, 33, and the valve unit boss 32, 33 is axially supported by a bush 26, 27 placed in both side parts of the valve barrel 21 respectively. That is, the hydraulic pressure acting upon the valve unit 32 is sefely supported by the valve barrel 21 through the valve unit boss 32, 33 and the bush 26, 27. The bush 26, 27 smoothly makes an operation to guide rotation of the valve unit 31 through the valve unit boss 32, 33. When the hydraulic pressure is acted upon the valve unit 31, though the valve unit makes a displacement to the direction of R3, R4, as shown in the drawing, this displacement is supported by a bearing 28, 29, constituted by ball bearings interposed between the valve unit boss 32, 33a and a cover 22, 24.
COPYRIGHT: (C)1980,JPO&Japio
JP13673178A 1978-11-08 1978-11-08 Ball valve Pending JPS5565770A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13673178A JPS5565770A (en) 1978-11-08 1978-11-08 Ball valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13673178A JPS5565770A (en) 1978-11-08 1978-11-08 Ball valve

Publications (1)

Publication Number Publication Date
JPS5565770A true JPS5565770A (en) 1980-05-17

Family

ID=15182179

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13673178A Pending JPS5565770A (en) 1978-11-08 1978-11-08 Ball valve

Country Status (1)

Country Link
JP (1) JPS5565770A (en)

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