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JPS5569366A - Water seal for gate valve - Google Patents

Water seal for gate valve

Info

Publication number
JPS5569366A
JPS5569366A JP14097378A JP14097378A JPS5569366A JP S5569366 A JPS5569366 A JP S5569366A JP 14097378 A JP14097378 A JP 14097378A JP 14097378 A JP14097378 A JP 14097378A JP S5569366 A JPS5569366 A JP S5569366A
Authority
JP
Japan
Prior art keywords
ring
seal
outer diameter
increase
gate 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.)
Granted
Application number
JP14097378A
Other languages
Japanese (ja)
Other versions
JPS5922110B2 (en
Inventor
Tetsuya Teramoto
Morimichi Shinohara
Yasusuke Watanabe
Takashi Ito
Isao Ishigamori
Juichiro Kawai
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 JP14097378A priority Critical patent/JPS5922110B2/en
Publication of JPS5569366A publication Critical patent/JPS5569366A/en
Publication of JPS5922110B2 publication Critical patent/JPS5922110B2/en
Expired legal-status Critical Current

Links

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  • Taps Or Cocks (AREA)

Abstract

PURPOSE: To smooth the sliding action of a seal ring, by making the outer diameter of the ring on the water side larger than that on the other side for inhibiting any increase in contact pressure at the moment the seal is closed.
CONSTITUTION: The outer diameter D1 on the liquid side of a seal ring 20 is larger than the outer diameter D3 on the other side. This can increase the pressure receiving area of the ring on the liquid side to provide the ring with self-operated control and to inhibit any increase in contact pressure with a valve seat 14A at the moment the seal is closed. Thus water is duely sealed and the slide action of the seal ring 20 is kept smooth.
COPYRIGHT: (C)1980,JPO&Japio
JP14097378A 1978-11-17 1978-11-17 Water control valve water sealing device Expired JPS5922110B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14097378A JPS5922110B2 (en) 1978-11-17 1978-11-17 Water control valve water sealing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14097378A JPS5922110B2 (en) 1978-11-17 1978-11-17 Water control valve water sealing device

Publications (2)

Publication Number Publication Date
JPS5569366A true JPS5569366A (en) 1980-05-24
JPS5922110B2 JPS5922110B2 (en) 1984-05-24

Family

ID=15281136

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14097378A Expired JPS5922110B2 (en) 1978-11-17 1978-11-17 Water control valve water sealing device

Country Status (1)

Country Link
JP (1) JPS5922110B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5810697A (en) * 1981-07-10 1983-01-21 株式会社日立製作所 Decay heat estimating device
US5101853A (en) * 1989-03-06 1992-04-07 Paul Wurth S.A. Device for shutting of pipelines for transport of bulk products
FR2940828A1 (en) * 2009-01-05 2010-07-09 D2Fc Valve for connecting upstream conduit to downstream conduit, has supply units respectively emerging from chambers while being connected outside body to actuate mobile seat and apply mobile seat against fixed seat or release mobile seat

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5810697A (en) * 1981-07-10 1983-01-21 株式会社日立製作所 Decay heat estimating device
JPH0338559B2 (en) * 1981-07-10 1991-06-11 Hitachi Ltd
US5101853A (en) * 1989-03-06 1992-04-07 Paul Wurth S.A. Device for shutting of pipelines for transport of bulk products
FR2940828A1 (en) * 2009-01-05 2010-07-09 D2Fc Valve for connecting upstream conduit to downstream conduit, has supply units respectively emerging from chambers while being connected outside body to actuate mobile seat and apply mobile seat against fixed seat or release mobile seat

Also Published As

Publication number Publication date
JPS5922110B2 (en) 1984-05-24

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