JPS5620871A - Seal mechanism of ball valve type seal ring - Google Patents

Seal mechanism of ball valve type seal ring

Info

Publication number
JPS5620871A
JPS5620871A JP9497979A JP9497979A JPS5620871A JP S5620871 A JPS5620871 A JP S5620871A JP 9497979 A JP9497979 A JP 9497979A JP 9497979 A JP9497979 A JP 9497979A JP S5620871 A JPS5620871 A JP S5620871A
Authority
JP
Japan
Prior art keywords
seal ring
ring
valve body
rubber plate
water
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
JP9497979A
Other languages
Japanese (ja)
Inventor
Tetsuya Teramoto
Yasusuke Watanabe
Takashi Ito
Koichi Arakawa
Juichiro Kawai
Minoru Ohara
Isao Ishigamori
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 JP9497979A priority Critical patent/JPS5620871A/en
Publication of JPS5620871A publication Critical patent/JPS5620871A/en
Pending legal-status Critical Current

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  • Taps Or Cocks (AREA)

Abstract

PURPOSE: To prevent the bulging-out of a packing and further prevent the leakage by a method wherein a packing at the ball valve type seal ring is made of a metal ring lined with a resilient member.
CONSTITUTION: When an opening and closing operation water pressure for the seal ring 6 is fed either at an closing inlet port 12 or an opening inlet port 13 to move the seal ring 6 in a direction of water flow, the operating water pressure is sealed by a close contact surface between a rubber plate 17 and the seal ring 6 as well as a close contact surface between the water seal ring 14 and the guide planes 7, 8 under a resiliency of the rubber plate 17, the seal ring 6 is moved in a direction of acting pressure of the operating water pressure to enable either an opening or closing operation of the valve body 12. When a valve body 1 is bulged out under a high pressure, an outer circumference of the seal ring 14 keeps a water sealing function in response to a bulged out of the valve body 1 under an existence of the slit 15 of the sealing ring 14 and a resiliency at the margin of the rubber plate 17.
COPYRIGHT: (C)1981,JPO&Japio
JP9497979A 1979-07-27 1979-07-27 Seal mechanism of ball valve type seal ring Pending JPS5620871A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9497979A JPS5620871A (en) 1979-07-27 1979-07-27 Seal mechanism of ball valve type seal ring

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9497979A JPS5620871A (en) 1979-07-27 1979-07-27 Seal mechanism of ball valve type seal ring

Publications (1)

Publication Number Publication Date
JPS5620871A true JPS5620871A (en) 1981-02-26

Family

ID=14125014

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9497979A Pending JPS5620871A (en) 1979-07-27 1979-07-27 Seal mechanism of ball valve type seal ring

Country Status (1)

Country Link
JP (1) JPS5620871A (en)

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