EP0129187A3 - Running-dry protection device for a diaphragm piston pump - Google Patents

Running-dry protection device for a diaphragm piston pump Download PDF

Info

Publication number
EP0129187A3
EP0129187A3 EP84106687A EP84106687A EP0129187A3 EP 0129187 A3 EP0129187 A3 EP 0129187A3 EP 84106687 A EP84106687 A EP 84106687A EP 84106687 A EP84106687 A EP 84106687A EP 0129187 A3 EP0129187 A3 EP 0129187A3
Authority
EP
European Patent Office
Prior art keywords
running
protection device
piston pump
diaphragm piston
dry protection
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.)
Granted
Application number
EP84106687A
Other languages
German (de)
Other versions
EP0129187B1 (en
EP0129187A2 (en
Inventor
Robert Scheurl
Kay Bodecker
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.)
Ecolab Engineering GmbH
Original Assignee
Lang Apparatebau GmbH
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 Lang Apparatebau GmbH filed Critical Lang Apparatebau GmbH
Priority to AT84106687T priority Critical patent/ATE22484T1/en
Publication of EP0129187A2 publication Critical patent/EP0129187A2/en
Publication of EP0129187A3 publication Critical patent/EP0129187A3/en
Application granted granted Critical
Publication of EP0129187B1 publication Critical patent/EP0129187B1/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B23/00—Pumping installations or systems
    • F04B23/04—Combinations of two or more pumps
    • F04B23/06—Combinations of two or more pumps the pumps being all of reciprocating positive-displacement type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/10—Other safety measures

Abstract

1. Device for protection against dry running of the metering piston of a piston diaphragm pump designed for the conveying of liquid media, characterised by at least one measurement sensor (3, 4), which is integrated into the pump head body (1) in the region of the preliminary conveying chamber (2) above a minimum liquid level (IV) still just quite covering the metering piston (6), with means connected therebehind for preliminary warning of a report of emptiness and/or for switching the pump off.
EP84106687A 1983-06-18 1984-06-12 Protecting device against the running dry of a diaphragm piston pump Expired EP0129187B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84106687T ATE22484T1 (en) 1983-06-18 1984-06-12 DRY RUNNING PROTECTION DEVICE OF A PISTON DIAPHRAGM PUMP.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3321959 1983-06-18
DE3321959A DE3321959A1 (en) 1983-06-18 1983-06-18 DRY RUN PROTECTION OF A PISTON DIAPHRAGM PUMP

Publications (3)

Publication Number Publication Date
EP0129187A2 EP0129187A2 (en) 1984-12-27
EP0129187A3 true EP0129187A3 (en) 1985-04-10
EP0129187B1 EP0129187B1 (en) 1986-09-24

Family

ID=6201751

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84106687A Expired EP0129187B1 (en) 1983-06-18 1984-06-12 Protecting device against the running dry of a diaphragm piston pump

Country Status (3)

Country Link
EP (1) EP0129187B1 (en)
AT (1) ATE22484T1 (en)
DE (2) DE3321959A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29708906U1 (en) 1997-05-21 1997-07-17 Lang Apparatebau Gmbh Piston diaphragm pump with sealless piston-cylinder unit
DE20313289U1 (en) 2003-08-26 2003-11-06 Herborner Pumpenfabrik J H Hof Dry run protection

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH498297A (en) * 1969-05-06 1970-10-31 Jacques Tobler Ag Method and device for monitoring the function of a metering pump and the storage supply of the liquid to be metered
US3862571A (en) * 1973-08-06 1975-01-28 Agridustrial Electronics Multielectrode capacitive liquid level sensing system
DE2651614A1 (en) * 1976-11-12 1978-05-24 Lang Apparatebau Gmbh DOSING PUMP

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH498297A (en) * 1969-05-06 1970-10-31 Jacques Tobler Ag Method and device for monitoring the function of a metering pump and the storage supply of the liquid to be metered
US3862571A (en) * 1973-08-06 1975-01-28 Agridustrial Electronics Multielectrode capacitive liquid level sensing system
DE2651614A1 (en) * 1976-11-12 1978-05-24 Lang Apparatebau Gmbh DOSING PUMP

Also Published As

Publication number Publication date
ATE22484T1 (en) 1986-10-15
EP0129187B1 (en) 1986-09-24
EP0129187A2 (en) 1984-12-27
DE3321959A1 (en) 1984-12-20
DE3460814D1 (en) 1986-10-30

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