JPS57120772A - Check valve - Google Patents

Check valve

Info

Publication number
JPS57120772A
JPS57120772A JP736881A JP736881A JPS57120772A JP S57120772 A JPS57120772 A JP S57120772A JP 736881 A JP736881 A JP 736881A JP 736881 A JP736881 A JP 736881A JP S57120772 A JPS57120772 A JP S57120772A
Authority
JP
Japan
Prior art keywords
pipeline
check valve
movable piece
union
coupler
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
JP736881A
Other languages
Japanese (ja)
Inventor
Kosaku Sayo
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 JP736881A priority Critical patent/JPS57120772A/en
Publication of JPS57120772A publication Critical patent/JPS57120772A/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 make easily the maintenance of check valve by using a system in which the check valve is built in the coupler of the pipeline of a refrigerating cycle and the movable piece of the check valve can be taken out to outside by loosening the coupler. CONSTITUTION:A movable piece 18 is slidably fitted into the inner hole 22b of an union 22 connected to the tip of a pipeline 10a, and a flare 10c formed at the end of a pipeline 10b having a sheet 24 inside is then contacted with the sloped portion of the union 22 and screwed and connected by a flare nut 23 and the union 22. A pin 19 serves as a stopper for the movable piece 18, and the sheet 24 is fixed to the pipeline 10b. Thus, the movable piece built in the pipeline can be easily taken out and exchanged with another piece simply by loosening the coupler screwed.
JP736881A 1981-01-20 1981-01-20 Check valve Pending JPS57120772A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP736881A JPS57120772A (en) 1981-01-20 1981-01-20 Check valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP736881A JPS57120772A (en) 1981-01-20 1981-01-20 Check valve

Publications (1)

Publication Number Publication Date
JPS57120772A true JPS57120772A (en) 1982-07-27

Family

ID=11664025

Family Applications (1)

Application Number Title Priority Date Filing Date
JP736881A Pending JPS57120772A (en) 1981-01-20 1981-01-20 Check valve

Country Status (1)

Country Link
JP (1) JPS57120772A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03199U (en) * 1989-05-23 1991-01-07

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03199U (en) * 1989-05-23 1991-01-07

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