JPS57134074A - Check valve - Google Patents

Check valve

Info

Publication number
JPS57134074A
JPS57134074A JP1734781A JP1734781A JPS57134074A JP S57134074 A JPS57134074 A JP S57134074A JP 1734781 A JP1734781 A JP 1734781A JP 1734781 A JP1734781 A JP 1734781A JP S57134074 A JPS57134074 A JP S57134074A
Authority
JP
Japan
Prior art keywords
check valve
union
joint part
elastic members
piping
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
JP1734781A
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 JP1734781A priority Critical patent/JPS57134074A/en
Publication of JPS57134074A publication Critical patent/JPS57134074A/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 high reliable check valve to perform its maintenance work further in small size, by utilizing the joint part of a piping line in a refrigerating cycle and mounting the check valve. CONSTITUTION:When a check valve 14 is built in a joint part 21, elastic members 28a, 28b made of rubber material or the like are firstly fitted to two root parts 16g, 16h of a crest part 16g in the check valve 14, and then there are internally peripherally fitted one side of an outer cylinder 16 of the check valve 14 to a pipe 10e while the other side to a union 22. Thereafter, a flared nut 23 is tightened to the union 22 to complete the joint part 21. The check valve is fixed to a piping by holding the crest part 16g together with a flange part 10i between the flared nut 23 and the union 22, further air-tightness processing means for the above is performed by arranging the elastic members 28a, 28b in a deformed state respectively with screw tightening force.
JP1734781A 1981-02-06 1981-02-06 Check valve Pending JPS57134074A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1734781A JPS57134074A (en) 1981-02-06 1981-02-06 Check valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1734781A JPS57134074A (en) 1981-02-06 1981-02-06 Check valve

Publications (1)

Publication Number Publication Date
JPS57134074A true JPS57134074A (en) 1982-08-19

Family

ID=11941508

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1734781A Pending JPS57134074A (en) 1981-02-06 1981-02-06 Check valve

Country Status (1)

Country Link
JP (1) JPS57134074A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59158794U (en) * 1983-04-12 1984-10-24 大江　順次 constant water supply equipment
JPS6021089U (en) * 1983-07-22 1985-02-13 真壁　哲治 Water metering device
JP2017009026A (en) * 2015-06-22 2017-01-12 株式会社日邦バルブ Check valve

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59158794U (en) * 1983-04-12 1984-10-24 大江　順次 constant water supply equipment
JPS6021089U (en) * 1983-07-22 1985-02-13 真壁　哲治 Water metering device
JP2017009026A (en) * 2015-06-22 2017-01-12 株式会社日邦バルブ Check valve

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