JPS5776369A - Change-over valve - Google Patents

Change-over valve

Info

Publication number
JPS5776369A
JPS5776369A JP56135602A JP13560281A JPS5776369A JP S5776369 A JPS5776369 A JP S5776369A JP 56135602 A JP56135602 A JP 56135602A JP 13560281 A JP13560281 A JP 13560281A JP S5776369 A JPS5776369 A JP S5776369A
Authority
JP
Japan
Prior art keywords
packing
annular
peripheral surface
resilient
valve body
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
JP56135602A
Other languages
Japanese (ja)
Other versions
JPS6358312B2 (en
Inventor
Takashi Tsunekawa
Atsushi Tanaka
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.)
SHIYOUKUU KK
SHIYOUWA KUUATSUKI KOGYO KK
SHOWA KUATSUKI CO Ltd
Original Assignee
SHIYOUKUU KK
SHIYOUWA KUUATSUKI KOGYO KK
SHOWA KUATSUKI CO 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 SHIYOUKUU KK, SHIYOUWA KUUATSUKI KOGYO KK, SHOWA KUATSUKI CO Ltd filed Critical SHIYOUKUU KK
Priority to JP56135602A priority Critical patent/JPS5776369A/en
Publication of JPS5776369A publication Critical patent/JPS5776369A/en
Publication of JPS6358312B2 publication Critical patent/JPS6358312B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Sliding Valves (AREA)
  • Multiple-Way Valves (AREA)
  • Sealing With Elastic Sealing Lips (AREA)
  • Sealing Devices (AREA)

Abstract

PURPOSE: To prolong the life of a sealing packing by unrotatably arranging the resilient auxiliary packing having the width less than the groove width in the annular groove of a piston valve body and inserting a hard packing into the outer peripheral annular recess of the said auxiliary packing, thus performing seal between the valve body.
CONSTITUTION: A resilient auxiliary packing 9 is constituted of the annular recess 91 on the outer peripheral surface, the gap forming projection 95 at a plural number of positions on the inner peripheral surface, and the small projection 92 for preventing revolution at the necessary positions on one outer side surface. An annular packing 8 is closely fitted in the annular recess 91, and the outer peripheral surface of the annular packing 8 is contacted under pressure onto the inner peripheral surface of the valve body (a) through the resilience of the resilient auxiliary packing 9, and sealing is performed also in case when pressurized fluid is not applied. Although the resilient auxiliary packing 9 is made of a soft resilient material such as rubber etc., the annular packing 8 is made of harder material such as hard synthetic resin, for example "Duracon" etc.
COPYRIGHT: (C)1982,JPO&Japio
JP56135602A 1981-08-31 1981-08-31 Change-over valve Granted JPS5776369A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56135602A JPS5776369A (en) 1981-08-31 1981-08-31 Change-over valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56135602A JPS5776369A (en) 1981-08-31 1981-08-31 Change-over valve

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
JP4179378A Division JPS54134825A (en) 1978-04-11 1978-04-11 Chaneeover valve

Publications (2)

Publication Number Publication Date
JPS5776369A true JPS5776369A (en) 1982-05-13
JPS6358312B2 JPS6358312B2 (en) 1988-11-15

Family

ID=15155643

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56135602A Granted JPS5776369A (en) 1981-08-31 1981-08-31 Change-over valve

Country Status (1)

Country Link
JP (1) JPS5776369A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0266772U (en) * 1988-11-01 1990-05-21
US5934323A (en) * 1997-03-21 1999-08-10 Smc Corporation Spool

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6463647B2 (en) 2015-02-26 2019-02-06 川崎重工業株式会社 Valve device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0266772U (en) * 1988-11-01 1990-05-21
US5934323A (en) * 1997-03-21 1999-08-10 Smc Corporation Spool

Also Published As

Publication number Publication date
JPS6358312B2 (en) 1988-11-15

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