AT279370B - Free-wheeling check valve for centrifugal pumps, in particular boiler feed pumps - Google Patents

Free-wheeling check valve for centrifugal pumps, in particular boiler feed pumps

Info

Publication number
AT279370B
AT279370B AT424468A AT424468A AT279370B AT 279370 B AT279370 B AT 279370B AT 424468 A AT424468 A AT 424468A AT 424468 A AT424468 A AT 424468A AT 279370 B AT279370 B AT 279370B
Authority
AT
Austria
Prior art keywords
pumps
wheeling
free
check valve
boiler feed
Prior art date
Application number
AT424468A
Other languages
German (de)
Original Assignee
Schroeder & Co H
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 Schroeder & Co H filed Critical Schroeder & Co H
Application granted granted Critical
Publication of AT279370B publication Critical patent/AT279370B/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
    • F04D15/0005—Control, e.g. regulation, of pumps, pumping installations or systems by using valves
    • F04D15/0011—Control, e.g. regulation, of pumps, pumping installations or systems by using valves by-pass valves
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/2496—Self-proportioning or correlating systems
    • Y10T137/2559—Self-controlled branched flow systems
    • Y10T137/2574—Bypass or relief controlled by main line fluid condition
    • Y10T137/2579—Flow rate responsive
    • Y10T137/2587—Bypass or relief valve biased open
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/2496—Self-proportioning or correlating systems
    • Y10T137/2559—Self-controlled branched flow systems
    • Y10T137/2574—Bypass or relief controlled by main line fluid condition
    • Y10T137/2579—Flow rate responsive
    • Y10T137/2602—Flapper

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Details And Applications Of Rotary Liquid Pumps (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Details Of Reciprocating Pumps (AREA)
  • Check Valves (AREA)
AT424468A 1967-06-01 1968-05-02 Free-wheeling check valve for centrifugal pumps, in particular boiler feed pumps AT279370B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1653778A DE1653778C3 (en) 1967-06-01 1967-06-01 Free-wheeling check valve for centrifugal pumps, especially for boiler feed pumps

Publications (1)

Publication Number Publication Date
AT279370B true AT279370B (en) 1970-03-10

Family

ID=7435874

Family Applications (1)

Application Number Title Priority Date Filing Date
AT424468A AT279370B (en) 1967-06-01 1968-05-02 Free-wheeling check valve for centrifugal pumps, in particular boiler feed pumps

Country Status (5)

Country Link
US (1) US3517687A (en)
AT (1) AT279370B (en)
DE (1) DE1653778C3 (en)
FR (1) FR1605355A (en)
GB (1) GB1228919A (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5075432U (en) * 1973-11-14 1975-07-01
CA1104461A (en) * 1980-02-01 1981-07-07 Heinz K. Hetz Modulating flow control valve assembly
US4768750A (en) * 1987-01-16 1988-09-06 Fisher Controls International, Inc. Valve joint connection
US5333638A (en) * 1993-01-21 1994-08-02 Keystone International Holdings Corp. Automatic recirculation valve
US8215330B2 (en) * 2007-03-30 2012-07-10 Tyco Valves & Controls, LP Adjustable recirculating valve
FR2947608B1 (en) * 2009-07-06 2011-09-02 Rainer Klemm ANTI-RETURN VALVE WITH IMPROVED AUTOMATIC RECIRCULATION
CN104565453A (en) * 2013-10-28 2015-04-29 北京航天动力研究所 Self-controlled reflux valve with rotary valve as bypass structure
CN105626551A (en) * 2016-03-04 2016-06-01 中国五环工程有限公司 Rotary valve type pump protecting device
DE102020003753A1 (en) * 2019-07-12 2021-01-14 KSB SE & Co. KGaA Valve
DE102020003756A1 (en) * 2019-07-12 2021-01-14 KSB SE & Co. KGaA Fitting arrangement

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH204955A (en) * 1938-02-02 1939-05-31 Sulzer Ag Non-return device arranged on the pressure side of centrifugal pumps, in particular boiler feed pumps.
FR1066887A (en) * 1951-07-31 1954-06-10 Shell Refining & Marketing Co Improvements to liquid dispensing devices
DE1108992B (en) * 1958-06-06 1961-06-15 Gerdts Gustav F Kg Procedure to ensure the flow of a minimum amount
GB893102A (en) * 1958-12-19 1962-04-04 G & J Weir Ltd System for controlling the flow of byepass liquid from a centrifugal pump
DE1528782A1 (en) * 1964-08-29 1969-07-10 Wilhelm Odendahl Minimum volume control for boiler feed centrifugal pumps
US3349714A (en) * 1965-10-11 1967-10-31 Ford Motor Co Power steering pump

Also Published As

Publication number Publication date
GB1228919A (en) 1971-04-21
FR1605355A (en) 1974-10-31
DE1653778C3 (en) 1979-08-16
DE1653778B2 (en) 1973-03-01
US3517687A (en) 1970-06-30
DE1653778A1 (en) 1971-09-09

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