EP0907029A3 - Centrifugal pump assembly - Google Patents

Centrifugal pump assembly Download PDF

Info

Publication number
EP0907029A3
EP0907029A3 EP98118524A EP98118524A EP0907029A3 EP 0907029 A3 EP0907029 A3 EP 0907029A3 EP 98118524 A EP98118524 A EP 98118524A EP 98118524 A EP98118524 A EP 98118524A EP 0907029 A3 EP0907029 A3 EP 0907029A3
Authority
EP
European Patent Office
Prior art keywords
flange
centrifugal pump
piece
sealing
pump assembly
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
EP98118524A
Other languages
German (de)
French (fr)
Other versions
EP0907029A2 (en
EP0907029B1 (en
Inventor
Niels Due Jensen
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.)
Grundfos AS
Original Assignee
Grundfos AS
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 Grundfos AS filed Critical Grundfos AS
Publication of EP0907029A2 publication Critical patent/EP0907029A2/en
Publication of EP0907029A3 publication Critical patent/EP0907029A3/en
Application granted granted Critical
Publication of EP0907029B1 publication Critical patent/EP0907029B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/406—Casings; Connections of working fluid especially adapted for liquid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/426—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for liquid pumps
    • F04D29/4293—Details of fluid inlet or outlet

Abstract

Das Kreiselpumpenaggregat weist mindestens eine Pumpenstufe, einen Antriebsmotor sowie einen Saug- und einen Druckanschluß (5 und 6) auf, wobei mindestens ein Anschlußstutzen in Form eines Anschlußflansches ausgebildet ist. Der Anschlußflansch besteht aus einem Dichtflansch (8) mit einer stirnseitigen Dichtfläche (11) und einem diesen umgebenden einteiligen Befestigungsflansch (9) zum Anbringen von Befestigungsmitteln. Dichtflansch (8) und Befestigungsflansch (9) sind mittels eines einteiligen Halterings (10) formschlüssig miteinander verbunden, der in einer umlaufenden Ausnehmung (13) zwischen Dichtflansch (8) und Befestigungsflansch (9) eingegliedert ist.

Figure 00000001
The centrifugal pump unit has at least one pump stage, a drive motor and a suction and a pressure connection (5 and 6), at least one connecting piece being designed in the form of a connecting flange. The connecting flange consists of a sealing flange (8) with an end sealing surface (11) and a one-piece fastening flange (9) surrounding it for attaching fasteners. Sealing flange (8) and fastening flange (9) are positively connected to one another by means of a one-piece retaining ring (10) which is incorporated in a circumferential recess (13) between the sealing flange (8) and fastening flange (9).
Figure 00000001
EP98118524A 1997-10-04 1998-09-30 Centrifugal pump assembly Expired - Lifetime EP0907029B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19743833 1997-10-04
DE19743833A DE19743833A1 (en) 1997-10-04 1997-10-04 Centrifugal pump unit

Publications (3)

Publication Number Publication Date
EP0907029A2 EP0907029A2 (en) 1999-04-07
EP0907029A3 true EP0907029A3 (en) 1999-10-13
EP0907029B1 EP0907029B1 (en) 2003-09-10

Family

ID=7844555

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98118524A Expired - Lifetime EP0907029B1 (en) 1997-10-04 1998-09-30 Centrifugal pump assembly

Country Status (2)

Country Link
EP (1) EP0907029B1 (en)
DE (2) DE19743833A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITPD20050240A1 (en) * 2005-07-29 2007-01-30 Dab Pumps Spa HYDRAULIC PUMP STRUCTURE
EP2112380A1 (en) * 2008-04-21 2009-10-28 DP Industries B.V. Multi-stage centrifugal pump of the in line-type
IT201600072971A1 (en) * 2016-07-13 2018-01-13 Calpeda A Spa PUMP PROVIDED WITH PERFECT FLANGES
CN109751266A (en) * 2018-12-10 2019-05-14 贵州电网有限责任公司 A kind of substation's fired power generating unit desulphurization system oxidation fan
CN110469732A (en) * 2019-09-12 2019-11-19 德帕姆(杭州)泵业科技有限公司 Speed tears type screw pushing rod type pump valve mounting structure open
CN113217468A (en) * 2021-06-23 2021-08-06 山东泰星新材料股份有限公司 Inlet and outlet connecting structure of centrifugal pump and using method

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2812959A (en) * 1953-08-21 1957-11-12 Westinghouse Air Brake Co Flange union fitting with gland expandible into an opening
DE1650116B1 (en) * 1966-05-24 1970-09-03 Mannesmann Ag Flange connection for pressure pipes
US3966234A (en) * 1974-02-22 1976-06-29 Goran Vilhelm Sundholm Flange joint
US4877372A (en) * 1987-09-04 1989-10-31 Grundfos International A/S Multi-stage rotary pump
WO1995033948A1 (en) * 1994-06-06 1995-12-14 Certainteed Corporation Mechanical joint pipe adapter

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2911239A (en) 1959-05-18 1959-11-03 Sr George B Marzolf Multiple piece pipe flange
US3895883A (en) 1973-10-29 1975-07-22 James Miller Pedersen Propeller pitch indicator

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2812959A (en) * 1953-08-21 1957-11-12 Westinghouse Air Brake Co Flange union fitting with gland expandible into an opening
DE1650116B1 (en) * 1966-05-24 1970-09-03 Mannesmann Ag Flange connection for pressure pipes
US3966234A (en) * 1974-02-22 1976-06-29 Goran Vilhelm Sundholm Flange joint
US4877372A (en) * 1987-09-04 1989-10-31 Grundfos International A/S Multi-stage rotary pump
WO1995033948A1 (en) * 1994-06-06 1995-12-14 Certainteed Corporation Mechanical joint pipe adapter

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
WOY A L ET AL: "NON-WELD HYDRAULIC PIPING SYSTEM IN REPUBLIC'S CAST-ROLL PROCESS", IRON AND STEEL ENGINEER, vol. 74, no. 4, 1 April 1997 (1997-04-01), pages 39 - 41, XP000690190, ISSN: 0021-1559 *

Also Published As

Publication number Publication date
EP0907029A2 (en) 1999-04-07
DE19743833A1 (en) 1999-04-15
EP0907029B1 (en) 2003-09-10
DE59809550D1 (en) 2003-10-16

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