GB1322702A - Multistage self-priming centrifugal pumps - Google Patents
Multistage self-priming centrifugal pumpsInfo
- Publication number
- GB1322702A GB1322702A GB1322702DA GB1322702A GB 1322702 A GB1322702 A GB 1322702A GB 1322702D A GB1322702D A GB 1322702DA GB 1322702 A GB1322702 A GB 1322702A
- Authority
- GB
- United Kingdom
- Prior art keywords
- stage
- pump
- valve
- primed
- priming
- 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.)
- Expired
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
- F04D9/00—Priming; Preventing vapour lock
- F04D9/04—Priming; Preventing vapour lock using priming pumps; using booster pumps to prevent vapour-lock
- F04D9/041—Priming; Preventing vapour lock using priming pumps; using booster pumps to prevent vapour-lock the priming pump having evacuating action
- F04D9/042—Priming; Preventing vapour lock using priming pumps; using booster pumps to prevent vapour-lock the priming pump having evacuating action and means for rendering its in operative
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D1/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
- F04D1/06—Multi-stage 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
- F04D9/00—Priming; Preventing vapour lock
- F04D9/04—Priming; Preventing vapour lock using priming pumps; using booster pumps to prevent vapour-lock
- F04D9/044—Means for rendering the priming pump inoperative
- F04D9/045—Means for rendering the priming pump inoperative the means being liquid level sensors
- F04D9/046—Means for rendering the priming pump inoperative the means being liquid level sensors the means being floats
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
1322702 Centrifugal pumps HENRY SYKES Ltd 6 July 1970 [18 April 1969] 19886/69 Heading F1C A multi-stage self-priming centrifugal pump having a first stage 10, Fig. 1, associated with a priming pump 13 connected via conduit 14 with float chamber 15 generally as described in Specification 1048272, has valve assemblies 29 connected to inlet conduits 27 or, as shown, inlet chambers 25, 26 of the second stage 11 and subsequent stages 12 if any. Once the first stage is primed by the pump 13, air downstream thereof becomes compressed and thereby forces its way through the second stage valve assemblies 29 to the atmosphere via bores 36. Thus the second stage is primed and subsequently, in a similar manner, the third stage becomes primed. The consequent filling of chambers 25, 26 with water raises floats 32 of the valve assemblies 29 and thereby closes the bores 36 with the upper end of valve heads 34. Normal pumping proceeds and the water is discharged through a non-return valve 16. Each valve assembly may additionally be connected to chamber 15 and thereby communicate with the priming pump. The stages may comprise individual units, and the first stage may comprise a single entry pump of the kind described in Specification 755249.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1988669 | 1969-04-18 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1322702A true GB1322702A (en) | 1973-07-11 |
Family
ID=10136813
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1322702D Expired GB1322702A (en) | 1969-04-18 | 1969-04-18 | Multistage self-priming centrifugal pumps |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1322702A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1671033A2 (en) * | 2003-09-26 | 2006-06-21 | Steve Pemberton | Pump |
-
1969
- 1969-04-18 GB GB1322702D patent/GB1322702A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1671033A2 (en) * | 2003-09-26 | 2006-06-21 | Steve Pemberton | Pump |
EP1671033A4 (en) * | 2003-09-26 | 2011-03-16 | Steve Pemberton | Pump |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |