JPS57137787A - Valve - Google Patents

Valve

Info

Publication number
JPS57137787A
JPS57137787A JP2353981A JP2353981A JPS57137787A JP S57137787 A JPS57137787 A JP S57137787A JP 2353981 A JP2353981 A JP 2353981A JP 2353981 A JP2353981 A JP 2353981A JP S57137787 A JPS57137787 A JP S57137787A
Authority
JP
Japan
Prior art keywords
downstream
opening
valve body
flow
cavitation
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
JP2353981A
Other languages
Japanese (ja)
Inventor
Tsuneo Kawada
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.)
Kubota Corp
Original Assignee
Kubota Corp
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 Kubota Corp filed Critical Kubota Corp
Priority to JP2353981A priority Critical patent/JPS57137787A/en
Publication of JPS57137787A publication Critical patent/JPS57137787A/en
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K47/00—Means in valves for absorbing fluid energy

Abstract

PURPOSE:To restrict the generation of cavitation in the flow just downstream of a valve body of which opening is set at an intermediate degree by a method wherein a supplying passage for the pressurized fluid is connected to the flow just downstream of the valve body to supply the pressurized fluid. CONSTITUTION:Opening of the pipe just downstream thereof facing to the sheet 4 is opened in such a manner as it is directed toward an area of cavitation generated just downstream of the valve body 2 having a degree of intermediate opening and it is directed toward the crossing at a right angle or a downstream of the flow in respect to the flow passage in the valve casing. Other opening of the downstream is opened to be directed toward an upstream so as to be applied with a direct dynamic pressure of the transporting fluid, thereby the dynamic pressure is supplied to the area generating cavitation at a downstream of the flow under a cooperative action between a negative pressure in the opening in the flow passage just downstream of the valve body 2 and the dynamic pressure in the opening in the flow passage downstream thereof, and thereby a cavitation generated just downstream of the valve body 2 with a degree of intermediate opening is restricted.
JP2353981A 1981-02-18 1981-02-18 Valve Pending JPS57137787A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2353981A JPS57137787A (en) 1981-02-18 1981-02-18 Valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2353981A JPS57137787A (en) 1981-02-18 1981-02-18 Valve

Publications (1)

Publication Number Publication Date
JPS57137787A true JPS57137787A (en) 1982-08-25

Family

ID=12113265

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2353981A Pending JPS57137787A (en) 1981-02-18 1981-02-18 Valve

Country Status (1)

Country Link
JP (1) JPS57137787A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5917089A (en) * 1982-07-20 1984-01-28 石川島播磨重工業株式会社 Device for preventing vibration and noise of piping system
JPS59169475U (en) * 1983-04-28 1984-11-13 前沢工業株式会社 valve
US4739794A (en) * 1986-08-29 1988-04-26 Amsted Industries Incorporated Rotatable valve with anti-cavitation structure
JPH0238784A (en) * 1988-07-26 1990-02-08 Hidekuni Yokota Switching valve device
JP2018204676A (en) * 2017-06-02 2018-12-27 株式会社日弁特殊工業 Butterfly valve

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5360727A (en) * 1976-11-13 1978-05-31 Kubota Ltd Method for controlling flow pressure and device

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5360727A (en) * 1976-11-13 1978-05-31 Kubota Ltd Method for controlling flow pressure and device

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5917089A (en) * 1982-07-20 1984-01-28 石川島播磨重工業株式会社 Device for preventing vibration and noise of piping system
JPS59169475U (en) * 1983-04-28 1984-11-13 前沢工業株式会社 valve
US4739794A (en) * 1986-08-29 1988-04-26 Amsted Industries Incorporated Rotatable valve with anti-cavitation structure
JPH0238784A (en) * 1988-07-26 1990-02-08 Hidekuni Yokota Switching valve device
JP2018204676A (en) * 2017-06-02 2018-12-27 株式会社日弁特殊工業 Butterfly valve

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