NZ704073A - Check valve - Google Patents

Check valve

Info

Publication number
NZ704073A
NZ704073A NZ704073A NZ70407313A NZ704073A NZ 704073 A NZ704073 A NZ 704073A NZ 704073 A NZ704073 A NZ 704073A NZ 70407313 A NZ70407313 A NZ 70407313A NZ 704073 A NZ704073 A NZ 704073A
Authority
NZ
New Zealand
Prior art keywords
valve
section
downstream side
housing
hole
Prior art date
Application number
NZ704073A
Inventor
Naoki Akaike
Original Assignee
Takahata Prec Japan 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 Takahata Prec Japan Co Ltd filed Critical Takahata Prec Japan Co Ltd
Publication of NZ704073A publication Critical patent/NZ704073A/en

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
    • F16K15/06—Check valves with guided rigid valve members with guided stems
    • 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
    • F16K15/06—Check valves with guided rigid valve members with guided stems
    • F16K15/063—Check valves with guided rigid valve members with guided stems the valve being loaded by a spring
    • 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
    • F16K15/06—Check valves with guided rigid valve members with guided stems
    • F16K15/063—Check valves with guided rigid valve members with guided stems the valve being loaded by a spring
    • F16K15/066—Check valves with guided rigid valve members with guided stems the valve being loaded by a spring with a plurality of valve members

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Check Valves (AREA)

Abstract

Provided is a compact, low-cost check valve that can suppress pressure loss and can securely prevent backflow of a fluid. The check valve is provided with the following: a tubular body that forms part of a flow path through which a fluid flows; a first housing with a first valve hole through which the fluid flows, with a valve seat section formed on the downstream side of the inner circumference surface of the first valve hole; a valve body with a flat section at the peak thereof and comprising a valve head section that expands in diameter in a tapered shape toward the downstream side and a support rod linked to the valve head section; a spring member that impels the valve body toward the valve seat section; and a second housing comprising a connecting section that has a second valve hole, and a cylindrical body that is open to the upstream side and that has a receiving surface on the downstream side for one end of the spring member and a sliding hole in the center section through which the support rod of the valve body slides; wherein the cylindrical body of the second housing decreases in diameter in a tapered shape toward the downstream side and has therein a cutaway section formed in the upper edge opposing one surface in the downstream side of the valve head section of the valve body.
NZ704073A 2012-07-29 2013-07-22 Check valve NZ704073A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2012167852 2012-07-29
PCT/JP2013/069757 WO2014021124A1 (en) 2012-07-29 2013-07-22 Check valve

Publications (1)

Publication Number Publication Date
NZ704073A true NZ704073A (en) 2016-05-27

Family

ID=50027806

Family Applications (1)

Application Number Title Priority Date Filing Date
NZ704073A NZ704073A (en) 2012-07-29 2013-07-22 Check valve

Country Status (6)

Country Link
JP (1) JP5593470B2 (en)
AU (1) AU2013297717B2 (en)
MY (1) MY180878A (en)
NZ (1) NZ704073A (en)
SG (1) SG11201408824UA (en)
WO (1) WO2014021124A1 (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104197050B (en) * 2014-09-02 2016-09-14 章华 Close the low flow resistance axial flow type check valve of latter end band Slow Close defencive function
CN104235441B (en) * 2014-09-03 2016-08-24 黄健山 backflow prevention valve
KR101592187B1 (en) * 2014-10-16 2016-02-11 센서나인(주) Flow control valve
GB2539545B (en) 2016-04-18 2018-01-03 Score (Europe) Ltd An injector
JP2018080767A (en) * 2016-11-17 2018-05-24 株式会社日邦バルブ Check valve
CN107676512B (en) * 2017-09-30 2019-08-30 和县科嘉阀门铸造有限公司 A kind of simple type check-valves
DE102018111811A1 (en) * 2018-05-16 2019-11-21 Otto Egelhof Gmbh & Co. Kg Check valve, in particular for a refrigeration or heat cycle
CN108488445B (en) * 2018-06-26 2023-12-22 盐城市百世达建材有限公司 Fireproof check valve
KR102201975B1 (en) * 2019-07-25 2021-01-12 우성밸브 주식회사 Shock-absorbing check valve
FR3103020B1 (en) 2019-11-12 2022-11-25 Sogefi Air & Cooling Slide valve and motor vehicle comprising same
PT4065508T (en) 2019-11-29 2024-01-26 Elaflex Hiby Gmbh & Co Kg Filling valve with leakage protection device
EP4015882B1 (en) * 2020-12-16 2024-05-01 Danfoss A/S Check-valve
KR102675402B1 (en) * 2022-04-15 2024-06-14 우성밸브 주식회사 Cartridge Type Check Valve

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5937375A (en) * 1982-08-24 1984-02-29 Tabuchi Seisakusho:Kk Cartridge type check valve
JP2590603Y2 (en) * 1993-12-06 1999-02-17 株式会社日邦バルブ Check valve with integrated packing
JP3231178B2 (en) * 1994-04-26 2001-11-19 日信工業株式会社 Check valve
US5921276A (en) * 1995-10-17 1999-07-13 Stream-Flo Industries, Ltd. Piston-type check valve with diffuser
JP2907768B2 (en) * 1995-12-21 1999-06-21 前澤給装工業株式会社 Check valve
JP2001280521A (en) * 2000-03-29 2001-10-10 Toto Ltd Backflow preventing device
JP4269260B2 (en) * 2003-06-05 2009-05-27 三浦工業株式会社 valve
JP2007143918A (en) * 2005-11-29 2007-06-14 Daiichi Jonan Kk Check valve for firefighting equipment, and check valve unit for firefighting equipment
JP5189403B2 (en) * 2008-05-08 2013-04-24 国立大学法人信州大学 Backflow prevention device
US8701693B2 (en) * 2010-12-23 2014-04-22 Curtiss-Wright Flow Control Corp Nozzle check valve

Also Published As

Publication number Publication date
AU2013297717B2 (en) 2016-10-20
MY180878A (en) 2020-12-11
SG11201408824UA (en) 2015-02-27
WO2014021124A1 (en) 2014-02-06
JPWO2014021124A1 (en) 2016-07-21
JP5593470B2 (en) 2014-09-24
AU2013297717A1 (en) 2015-02-12

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