DE602005001620D1 - rotary pump - Google Patents

rotary pump

Info

Publication number
DE602005001620D1
DE602005001620D1 DE602005001620T DE602005001620T DE602005001620D1 DE 602005001620 D1 DE602005001620 D1 DE 602005001620D1 DE 602005001620 T DE602005001620 T DE 602005001620T DE 602005001620 T DE602005001620 T DE 602005001620T DE 602005001620 D1 DE602005001620 D1 DE 602005001620D1
Authority
DE
Germany
Prior art keywords
pipe
fluid
outfeed
containment body
infeed
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.)
Active
Application number
DE602005001620T
Other languages
German (de)
Inventor
Silvano Pedrollo
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.)
Pedrollo SpA
Original Assignee
Pedrollo SpA
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 Pedrollo SpA filed Critical Pedrollo SpA
Publication of DE602005001620D1 publication Critical patent/DE602005001620D1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D9/00—Priming; Preventing vapour lock
    • F04D9/004—Priming of not self-priming pumps
    • F04D9/005—Priming of not self-priming pumps by adducting or recycling liquid

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Control Of Non-Positive-Displacement Pumps (AREA)
  • Lubrication Of Internal Combustion Engines (AREA)
  • Reciprocating Pumps (AREA)

Abstract

A centrifugal pump comprises a containment body (2) with an infeed pipe (4) and an outfeed pipe (6); at least one intake stage (9) located in the containment body (2) between the pipes (4, 6), and having at least one impeller (10) for sucking a fluid from the infeed pipe (4) and conveying it towards the outfeed pipe (6); and impeller (10) drive means (7). The pump also has a safety valve (19) located in the containment body (2) and able to switch between an open condition in which it allows fluid to pass from the outfeed pipe (6) to the infeed pipe (4), and a closed condition in which it does not allow the passage of the fluid. The pump also comprises safety valve (19) locking means (26) for keeping the valve (19) in the closed position until the pressure of the fluid in the outfeed pipe (6) exceeds a predetermined pressure value P.
DE602005001620T 2005-05-31 2005-05-31 rotary pump Active DE602005001620D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP05425397A EP1729009B1 (en) 2005-05-31 2005-05-31 Centrifugal pump

Publications (1)

Publication Number Publication Date
DE602005001620D1 true DE602005001620D1 (en) 2007-08-23

Family

ID=34943213

Family Applications (1)

Application Number Title Priority Date Filing Date
DE602005001620T Active DE602005001620D1 (en) 2005-05-31 2005-05-31 rotary pump

Country Status (3)

Country Link
EP (1) EP1729009B1 (en)
AT (1) ATE366878T1 (en)
DE (1) DE602005001620D1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2505842B1 (en) * 2011-03-29 2019-12-25 Grundfos Management a/s Multi stage centrifugal pump system
EP3244066B1 (en) * 2016-05-12 2020-11-18 Grundfos Holding A/S Centrifugal pump
EP3929445A1 (en) * 2020-06-22 2021-12-29 Grundfos Holding A/S Centrifugal pump device
EP4191065B1 (en) * 2021-12-02 2024-01-17 Husqvarna Ab Watering pump

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1913242A1 (en) * 1969-03-15 1970-09-24 Wilfried Niemes Device for keeping the delivery height of centrifugal pumps constant with a variable delivery rate
DE2106852A1 (en) * 1971-02-13 1972-09-14 Sueddeutsche Kuehler Behr Heating circulation pump
IT1257704B (en) * 1991-12-05 1996-02-01 Nocchi Pompe Spa MULTI-FUNCTIONAL WATER PUMP: CENTRIFUGAL, FOR DEEP SUCTION, SELF-PRIMING, CENTRIFUGAL WITH PRESSURE REGULATION, SELF-PRIMING WITH PRESSURE REGULATION, WITH STARTING DEVICE AND / OR AUTOMATIC STOP
DE19709484A1 (en) * 1997-03-07 1998-09-10 Hella Kg Hueck & Co Unit for regulating coolant temperature of internal combustion engine in motor vehicle

Also Published As

Publication number Publication date
ATE366878T1 (en) 2007-08-15
EP1729009A1 (en) 2006-12-06
EP1729009B1 (en) 2007-07-11

Similar Documents

Publication Publication Date Title
BRPI0504777A (en) booster valve and pneumatic transfer system
NO20082457L (en) Suction valve assembly for a water circuit for a drinking machine
ATE453593T1 (en) DEVICE FOR CONVEYING POWDERY MATERIAL THROUGH PIPES
DE502006005819D1 (en) Control valve for systems for raising and lowering a vehicle body
WO2008001179A3 (en) Kit for repairing and inflating inflatable articles
PL1767788T3 (en) Drain pump for home appliances
WO2009158518A3 (en) Improved check valve flap for fluid injector
ATE387602T1 (en) CHECK VALVE
NO20060384L (en) Safety valve for use in an injection well
WO2007076225A3 (en) Bypass valve with blending feature
WO2007020354A3 (en) Fluid flow control assembly for a container blowing machine and machine comprising one such assembly
DE602005001620D1 (en) rotary pump
WO2006105983A3 (en) Shut-off device for a waste-water inspection chamber, comprising a shut-off element with a magnetic lock
WO2012037348A3 (en) Molded and packaged elastomeric check valve
WO2006017781A3 (en) Fluid storage and delivery apparatus
DK2195566T3 (en) ball valve isolator
WO2009117788A8 (en) Minimum pressure valve
DE502006001121D1 (en) diverter
SI1900984T1 (en) Gate valve for pressure pipelines
DK2085670T3 (en) The bypass valve
FI20075913A0 (en) Valve
WO2003082181A3 (en) Container and method of sealing
DE502007002008D1 (en) External filter pump
SE0500575L (en) Device for transporting granular material
ATE387599T1 (en) FLAP VALVE WITH BLOCKING DEVICE

Legal Events

Date Code Title Description
8332 No legal effect for de