JPS57120771A - Check valve - Google Patents

Check valve

Info

Publication number
JPS57120771A
JPS57120771A JP736781A JP736781A JPS57120771A JP S57120771 A JPS57120771 A JP S57120771A JP 736781 A JP736781 A JP 736781A JP 736781 A JP736781 A JP 736781A JP S57120771 A JPS57120771 A JP S57120771A
Authority
JP
Japan
Prior art keywords
check valve
union
outer cylinder
flare nut
flares
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
JP736781A
Other languages
Japanese (ja)
Inventor
Kosaku Sayo
Toshiaki Ueda
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 JP736781A priority Critical patent/JPS57120771A/en
Publication of JPS57120771A publication Critical patent/JPS57120771A/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
    • F16K15/00—Check valves
    • F16K15/02—Check valves with guided rigid valve members
    • F16K15/021—Check valves with guided rigid valve members the valve member being a movable body around which the medium flows when the valve is open

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Pipe Accessories (AREA)

Abstract

PURPOSE:To obtain a highly reliable and small-size check valve having good maintainability by attaching the check valve by utilizing the coupling part of a pipeline for refrigerating cycle. CONSTITUTION:A movable piece 18 is fitted into the inside of an outer cylinder 16, and its axial moving range is regulated properly by a pin 19 driven into the hole 16e of the outer cylinder 16 from outside. In pipelines 10a and 10b positioned before and behind the check valve, inclined flares 10c and 10d are formed on their ends one of which is provided with a flare nut 23 and the other is provided with an union 22. And, they are screwed and connected by the flare nut 23 and the union 22 to fix the check valve. Thus, assembly and disassembly can be easily performed and repairing can also be performed at low cost.
JP736781A 1981-01-20 1981-01-20 Check valve Pending JPS57120771A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP736781A JPS57120771A (en) 1981-01-20 1981-01-20 Check valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP736781A JPS57120771A (en) 1981-01-20 1981-01-20 Check valve

Publications (1)

Publication Number Publication Date
JPS57120771A true JPS57120771A (en) 1982-07-27

Family

ID=11663995

Family Applications (1)

Application Number Title Priority Date Filing Date
JP736781A Pending JPS57120771A (en) 1981-01-20 1981-01-20 Check valve

Country Status (1)

Country Link
JP (1) JPS57120771A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60134976U (en) * 1984-02-21 1985-09-07 東陶機器株式会社 non-return valve
US5312531A (en) * 1990-10-09 1994-05-17 Nippon Steel Corporation Process for manufacturing galvanized steel sheet by nickel pre-coating method
JP2002147681A (en) * 2000-11-14 2002-05-22 Saginomiya Seisakusho Inc Check valve built in piping and pipe connecting structure and method using the same
JP2022019265A (en) * 2020-07-17 2022-01-27 株式会社鷺宮製作所 Check valve and refrigeration cycle system

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60134976U (en) * 1984-02-21 1985-09-07 東陶機器株式会社 non-return valve
JPH02534Y2 (en) * 1984-02-21 1990-01-09
US5312531A (en) * 1990-10-09 1994-05-17 Nippon Steel Corporation Process for manufacturing galvanized steel sheet by nickel pre-coating method
JP2002147681A (en) * 2000-11-14 2002-05-22 Saginomiya Seisakusho Inc Check valve built in piping and pipe connecting structure and method using the same
JP2022019265A (en) * 2020-07-17 2022-01-27 株式会社鷺宮製作所 Check valve and refrigeration cycle system

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