JPS643387A - Tandem piston device for valve - Google Patents

Tandem piston device for valve

Info

Publication number
JPS643387A
JPS643387A JP15528587A JP15528587A JPS643387A JP S643387 A JPS643387 A JP S643387A JP 15528587 A JP15528587 A JP 15528587A JP 15528587 A JP15528587 A JP 15528587A JP S643387 A JPS643387 A JP S643387A
Authority
JP
Japan
Prior art keywords
piston
pressurized air
lower side
valve
pushes
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
JP15528587A
Other languages
Japanese (ja)
Inventor
Takashi Minemura
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.)
NIPPON DAIYABARUBU KK
NIPPON DIAVALVE
Original Assignee
NIPPON DAIYABARUBU KK
NIPPON DIAVALVE
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 NIPPON DAIYABARUBU KK, NIPPON DIAVALVE filed Critical NIPPON DAIYABARUBU KK
Priority to JP15528587A priority Critical patent/JPS643387A/en
Publication of JPS643387A publication Critical patent/JPS643387A/en
Pending legal-status Critical Current

Links

Landscapes

  • Fluid-Driven Valves (AREA)

Abstract

PURPOSE:To supply a pressurized air to upper and lower pistons through a simple machining of a spindle by ventilating the pressurized air supplied to the lower side of the lower piston to the lower side of the upper piston. CONSTITUTION:A pressurized air is introduced directly to the lower side of a lower piston 18a from an air pressure introducing hole 21 of a cylinder 20. The introduced pressurized air pushes up a lower piston 18b, enters a lower connecting hole 19b from the lower face of the lower piston, and then reaches the lower side of the upper piston 18a from an upper connecting hole 19a through upper and lower shaft-holes 35a, 35b of upper and lower spindles 17a, 17b. The pressurized air reached the lower side of the upper piston 18a pushes up the upper piston 18a. Thus, the pressurized air acts upon the lower faces of the upper and lower pistons 18a, 18b.
JP15528587A 1987-06-24 1987-06-24 Tandem piston device for valve Pending JPS643387A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15528587A JPS643387A (en) 1987-06-24 1987-06-24 Tandem piston device for valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15528587A JPS643387A (en) 1987-06-24 1987-06-24 Tandem piston device for valve

Publications (1)

Publication Number Publication Date
JPS643387A true JPS643387A (en) 1989-01-09

Family

ID=15602559

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15528587A Pending JPS643387A (en) 1987-06-24 1987-06-24 Tandem piston device for valve

Country Status (1)

Country Link
JP (1) JPS643387A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH072681U (en) * 1993-06-11 1995-01-13 甲南電機株式会社 Fluid pressure type pressure relief device for relief valve
US6092550A (en) * 1997-02-03 2000-07-25 Swagelok Marketing Co. Diaphragm valve seat arrangement
JP2016223473A (en) * 2015-05-27 2016-12-28 パスカルエンジニアリング株式会社 Pull-type clamp device

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5036485A (en) * 1973-08-02 1975-04-05

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5036485A (en) * 1973-08-02 1975-04-05

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH072681U (en) * 1993-06-11 1995-01-13 甲南電機株式会社 Fluid pressure type pressure relief device for relief valve
US6092550A (en) * 1997-02-03 2000-07-25 Swagelok Marketing Co. Diaphragm valve seat arrangement
US6189861B1 (en) 1997-02-03 2001-02-20 Swagelok Company Diaphragm valve
JP2016223473A (en) * 2015-05-27 2016-12-28 パスカルエンジニアリング株式会社 Pull-type clamp device

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