US3149574A - Ceramic lined pump - Google Patents

Ceramic lined pump Download PDF

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Publication number
US3149574A
US3149574A US141429A US14142961A US3149574A US 3149574 A US3149574 A US 3149574A US 141429 A US141429 A US 141429A US 14142961 A US14142961 A US 14142961A US 3149574 A US3149574 A US 3149574A
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ceramic
disk
metal
liner
flanges
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US141429A
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Victor J Mill
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Lawrence Pumps Inc
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Lawrence Pumps Inc
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    • 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
    • F04D29/4286—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for liquid pumps inside lining, e.g. rubber

Definitions

  • This invention relates to centrifugal pumps and comprises a new and improved pump of that type adapted by the provision of a ceramic lining and impeller for pumping fluid mixtures containing abrasive solids in suspension, such as cement slurry, tailings in ore reduction plants, grinding and cutting sand in quarries, acid slurries, soda ash and the like.
  • abrasive solids in suspension such as cement slurry, tailings in ore reduction plants, grinding and cutting sand in quarries, acid slurries, soda ash and the like.
  • centrifugal pumps have heretofore been provided with linings and impellers of hard metal and rubber, the results have not been entirely satisfactory from the standpoint of expense of manufacture and wear in use.
  • the present invention eliminates these difliculties and presents additional advantages.
  • the pump of my invention comprises all or several of the following elements, viz. an outer metal casing or shell lined on the inside with a ceramic liner, a metal suction disk lined on the inside with a ceramic liner, a metal hub disk lined on the inside with a ceramic liner, a ceramic impeller fitted with a metal bushing in the hub for securing it on the shaft and conventional shaft, bearings and base.
  • FIG. 1 is a view of the pump unit, the bearing frame being shown in elevation and the pump in longitudinal section,
  • FIG. 2 is a view of the pump in cross section
  • FIG. 3 is a diagrammatic view of the ceramic impeller and adjacent ceramic disk liners
  • FIG. 4 is a view in perspective of the ceramic shell liner.
  • the bearing frame 11 and pump 13 are mounted on a common base 10, the shaft 12 carrying a ceramic impeller 23.
  • the outer casing of the pump is supported from the base by legs or brackets 14 and comprises a fixed bottom section 15 and a detachable upper section 16. These members form a substantially volute metal casing having a tangential outlet 17.
  • the removable section 16 is secured to the fixed section 15 by bolts 17 as shown in FIG. 2.
  • the metal casing also includes an inner or hub disk 18 having a tubular hub 19 containing a stuffing box and gland for the shaft 12 and a peripheral flange, also an outer or suction disk 26 having a flanged inlet passage 27 and an outwardly directed peripheral flange.
  • the metal casing also includes a bracket 20 connecting the bearing frame 11 to the casing of the pump.
  • the inboard end 21 of the shaft 12 is shouldered, reduced in diameter and threaded.
  • a flanged sleeve 22 surrounds the shaft and engages its shoulder.
  • the outboard end of the shaft may be fitted either with flexible coupling for direct connection to motor or engine or with pulley for belt drive.
  • the impeller 23 is formed as a single ceramic unit having a tubular hub formed with an internal thread and in this is fitted a metal bushing 24 externally threaded for connection with the hub of the impeller and having a flange for engaging the end of its hub.
  • epoxy cement is applied to the contacting surfaces for the purpose of making a permanent union between the bushing and the impeller. Epoxy 3,149,574 Patented Sept. 22., 1964 ice cement has been found particularly effective in maintaining a permanent bond at this point.
  • the bushing 24 is also internally threaded to take the thread of the reduced end 21 of the driving shaft.
  • the impeller is also formed with several threaded recesses for the reception of metal plugs 25. These may be inserted or removed or varied in weight in order to secure a static and dynamic balance of the impeller.
  • the impeller 23 may be of conventional design including circular side walls and a series of interposed vanes 28 symmetrically located to produce a balanced rotating unit.
  • the vanes form peripheral outlets for fluid entering by the inlet opening opposite the center of the rotating impeller.
  • the ceramic shell liner 32 which is in one piece is held in place within the outer metal casing 15 and 16 by projecting circumferential flanges as shown in FIG. 1.
  • shell liner 32 and outer shell 15 and 16 are allowed to fill with the liquid being pumped through vairous clearances so that the internal and external pressure on the shell liner is equalized and it is not subjected to any bursting pressure.
  • the ceramic disk liner 30 has a tubular outlet which lines the inlet passage of the pump and it is cemented to disk 26 with epoxy cement with its circumferential edge in flush relation with the peripheral flange of the metal hub disk.
  • the ceramic hub disk liner 31 has a tubular hub which encloses the hub on the impeller 23 and it is cemened to the metal disk 18 with epoxy cement with its circumferential edge in flush relation to the peripheral flange of the hub disk.
  • Shaft 12 is supported by ball or roller bearings within the bearing frame 11, the bearings being lubricated either with grease or oil.
  • the pump 13 and bearing frame 11 are mounted on suitable base 10 for maintaining alignment.
  • the outer casing with liner is first assembled and secured in place as described above.
  • hub disk 18 with liner 31 is secured to the outer casing with suitable studs.
  • impeller 23 is mounted on the threaded end of the shaft.
  • suction disk 26 with liner 30 of the inlet opening is secured to the outer casing with suitable studs.
  • the ceramic impeller and the parts of the ceramic lining may be formed of porcelain or other abrasion resistant ceramics such as Refrax which is a dense bonded silicon carbide especially hard, practically impervious to oxidation or other chemical attack.
  • Refrax which is a dense bonded silicon carbide especially hard, practically impervious to oxidation or other chemical attack.
  • the four ceramic members 23, 30, 31 and 32 as shown in FIGS. 3 and 4 may be formed or cast as separate integral units capable of manufacture at moderate cost and inherently rugged in their construction.
  • metal parts such as metal impeller with ceramic lined casing and disks, metal impeller and metal outer casing with ceramic lined disks, etc.
  • a ceramic impeller having circular side disks and curved intermediate vanes forming peripheral discharge openings in the impeller, the said side disks having smooth inner faces and recesses in their outer faces containing balancing plugs.
  • a ceramic lined pump for handling' abrasive mixtures comprising an outer end disk of metal having an outwardly directed flanged inlet opening and an inwardly directed peripheral shoulder, a corresponding hub disk of metal having a flanged opening for a driving shaft and a peripheral shoulder, flanged ceramic liners for said metal outer end disk and hub disk coinciding in diameter with the peripheral shoulder of its adjacent disk and adhesively secured by cement to the disk with its circumferential edge in flush relation therewith, the flanges on said liners fitting Within said openings, an integral ceramic liner of volute shape having flanges that rest directly upon the peripheral shoulders of the end disks and upon References Cited in the file of this patent UNITED STATES PATENTS 304,809 Esplin 2 Y Sept.

Description

Sept. 22, 1964 3,149,574
V. J. MILL CERAMIC LINED PUMP 2 Sheets-Sheet 1 Filed Sept. 28 1961 INVENTOR.
VI CTOR J. MILL ATTORNEYS- Sept. 22, 1964 Filed Sept. 28, 1961 V. J. MILL CERAMIC LINED PUMP 2 Sheets-Sheet 2 INVENTOR. VICTOR J. MILL symzzi ATTORNEYS United States Patent 3,149,574 CERAMIC LINED PUMP Victor 1. Mill, Andover, Mass, assignor to Lawrence Pumps Inc., Lawrence, Mass, a corporation of Massachusetts Filed Sept. 28, 1961, Ser. No. 141,429 '2 Claims. (Cl. 103-114) This invention relates to centrifugal pumps and comprises a new and improved pump of that type adapted by the provision of a ceramic lining and impeller for pumping fluid mixtures containing abrasive solids in suspension, such as cement slurry, tailings in ore reduction plants, grinding and cutting sand in quarries, acid slurries, soda ash and the like. While centrifugal pumps have heretofore been provided with linings and impellers of hard metal and rubber, the results have not been entirely satisfactory from the standpoint of expense of manufacture and wear in use. The present invention eliminates these difliculties and presents additional advantages.
Going more into detail the pump of my invention comprises all or several of the following elements, viz. an outer metal casing or shell lined on the inside with a ceramic liner, a metal suction disk lined on the inside with a ceramic liner, a metal hub disk lined on the inside with a ceramic liner, a ceramic impeller fitted with a metal bushing in the hub for securing it on the shaft and conventional shaft, bearings and base.
These and other features of the invention will be best understood and appreciated from the following description of a preferred embodiment thereof selected for purposes of illustration and shown in the accompanying drawings, in which:
FIG. 1 is a view of the pump unit, the bearing frame being shown in elevation and the pump in longitudinal section,
FIG. 2 is a view of the pump in cross section,
FIG. 3 is a diagrammatic view of the ceramic impeller and adjacent ceramic disk liners, and
FIG. 4 is a view in perspective of the ceramic shell liner.
As shown in FIG. 1, the bearing frame 11 and pump 13 are mounted on a common base 10, the shaft 12 carrying a ceramic impeller 23. The outer casing of the pump is supported from the base by legs or brackets 14 and comprises a fixed bottom section 15 and a detachable upper section 16. These members form a substantially volute metal casing having a tangential outlet 17. The removable section 16 is secured to the fixed section 15 by bolts 17 as shown in FIG. 2.
The metal casing also includes an inner or hub disk 18 having a tubular hub 19 containing a stuffing box and gland for the shaft 12 and a peripheral flange, also an outer or suction disk 26 having a flanged inlet passage 27 and an outwardly directed peripheral flange. The metal casing also includes a bracket 20 connecting the bearing frame 11 to the casing of the pump.
The inboard end 21 of the shaft 12 is shouldered, reduced in diameter and threaded. A flanged sleeve 22 surrounds the shaft and engages its shoulder.
The outboard end of the shaft may be fitted either with flexible coupling for direct connection to motor or engine or with pulley for belt drive.
The impeller 23 is formed as a single ceramic unit having a tubular hub formed with an internal thread and in this is fitted a metal bushing 24 externally threaded for connection with the hub of the impeller and having a flange for engaging the end of its hub. In addition to the threaded connection between the bushing and the hub of the impeller, epoxy cement is applied to the contacting surfaces for the purpose of making a permanent union between the bushing and the impeller. Epoxy 3,149,574 Patented Sept. 22., 1964 ice cement has been found particularly effective in maintaining a permanent bond at this point. The bushing 24 is also internally threaded to take the thread of the reduced end 21 of the driving shaft. The impeller is also formed with several threaded recesses for the reception of metal plugs 25. These may be inserted or removed or varied in weight in order to secure a static and dynamic balance of the impeller.
The impeller 23 may be of conventional design including circular side walls and a series of interposed vanes 28 symmetrically located to produce a balanced rotating unit. The vanes form peripheral outlets for fluid entering by the inlet opening opposite the center of the rotating impeller.
The ceramic shell liner 32 which is in one piece is held in place within the outer metal casing 15 and 16 by projecting circumferential flanges as shown in FIG. 1.
The space between shell liner 32 and outer shell 15 and 16 is allowed to fill with the liquid being pumped through vairous clearances so that the internal and external pressure on the shell liner is equalized and it is not subjected to any bursting pressure.
It will be apparent that in assembling the pump the lower half of the outer casing 15 will first be put in place then the shell liner 32 will be inserted inside and then the upper half 16 inserted over the liner. The two halves will then be bolted together with bolts 17 The ceramic disk liner 30 has a tubular outlet which lines the inlet passage of the pump and it is cemented to disk 26 with epoxy cement with its circumferential edge in flush relation with the peripheral flange of the metal hub disk.
The ceramic hub disk liner 31 has a tubular hub which encloses the hub on the impeller 23 and it is cemened to the metal disk 18 with epoxy cement with its circumferential edge in flush relation to the peripheral flange of the hub disk.
The cementing of liners to disks with epoxy cement reinforces the liners and has been found particularly effective in maintaining a bond between the disks and the liners. It also permits of renewing the liners readily by application of heat which releases the bond.
Shaft 12 is supported by ball or roller bearings within the bearing frame 11, the bearings being lubricated either with grease or oil.
The pump 13 and bearing frame 11 are mounted on suitable base 10 for maintaining alignment.
In assembling the pump, the outer casing with liner is first assembled and secured in place as described above.
After that, hub disk 18 with liner 31 is secured to the outer casing with suitable studs. Then the impeller 23 is mounted on the threaded end of the shaft. Then the suction disk 26 with liner 30 of the inlet opening is secured to the outer casing with suitable studs.
In disassembling, a reversed process will be followed.
The ceramic impeller and the parts of the ceramic lining may be formed of porcelain or other abrasion resistant ceramics such as Refrax which is a dense bonded silicon carbide especially hard, practically impervious to oxidation or other chemical attack.
The four ceramic members 23, 30, 31 and 32 as shown in FIGS. 3 and 4 may be formed or cast as separate integral units capable of manufacture at moderate cost and inherently rugged in their construction.
No bolts or studs are used for holding the ceramic lining in place which is particularly advantageous because of the fragile character of ceramic materials.
It is also contemplated as part of this invention to utilize these features in different combinations with metal parts such as metal impeller with ceramic lined casing and disks, metal impeller and metal outer casing with ceramic lined disks, etc.
Having thus disclosed my invention and described in detail an illustrative embodiment thereof, what I claim as new and desire to secure by Letters Patent is:
1. In a ceramic lined pump for handling abrasive mix tures, a ceramic impeller having circular side disks and curved intermediate vanes forming peripheral discharge openings in the impeller, the said side disks having smooth inner faces and recesses in their outer faces containing balancing plugs. I
2. A ceramic lined pump for handling' abrasive mixtures, comprising an outer end disk of metal having an outwardly directed flanged inlet opening and an inwardly directed peripheral shoulder, a corresponding hub disk of metal having a flanged opening for a driving shaft and a peripheral shoulder, flanged ceramic liners for said metal outer end disk and hub disk coinciding in diameter with the peripheral shoulder of its adjacent disk and adhesively secured by cement to the disk with its circumferential edge in flush relation therewith, the flanges on said liners fitting Within said openings, an integral ceramic liner of volute shape having flanges that rest directly upon the peripheral shoulders of the end disks and upon References Cited in the file of this patent UNITED STATES PATENTS 304,809 Esplin 2 Y Sept. 19, 1884 914,283 Jackson Mar. 2, 1909 1,172,947 Coppage Feb. 22, 1916 1,897,947 Howell Feb. 14, 1933 1,952,438 Blunt Mar. 27, 1934 1,958,108 Milkowski May 8, 1934 1,970,435 Sharp a Aug. 14, 1934 2,029,333 Miller Feb. 14, 1936 2,107,260 Ihara Feb. 1, 1938 2,433,589 Adams 5. Dec. 30, 1947 2,658,454 Greene NOV. 10, 1953 2,868,441 Reutt Ian. 13, 1959

Claims (1)

  1. 2. A CERAMIC LINED PUMP FOR HANDLING ABRASIVE MIXTURES, COMPRISING AN OUTER END DISK OF METAL HAVING AN OUTWARDLY DIRECTED FLANGED INLET OPENING AND AN INWARDLY DIRECTED PERIPHERAL SHOULDER, A CORRESPONDING HUB DISK OF METAL HAVING A FLANGED OPENING FOR A DRIVING SHAFT AND A PERIPHERAL SHOULDER, FLANGED CERAMIC LINERS FOR SAID METAL OUTER END DISK AND HUB DISK COINCIDING IN DIAMETER WITH THE PERIPHERAL SHOULDER OF ITS ADJACENT DISK AND ADHESIVELY SECURED BY CEMENT TO THE DISK WITH ITS CIRCUMFERENTIAL EDGE IN FLUSH RELATION THEREWITH, THE FLANGES ON SAID LINERS FITTING WITHIN SAID OPENINGS, AN INTEGRAL CERAMIC LINER OF VOLUTE SHAPE HAVING FLANGES THAT REST DIRECTLY UPON THE PERIPHERAL SHOULDERS OF THE END DISKS AND UPON THE FLUSH CIRCUMFERENTIAL EDGE OF THE CERAMIC LINERS OF THE END DISKS, THUS SUPPORTING THE CERAMIC VOLUTE LINER AS A UNIT, AND A SECTIONAL METAL CASING OF VOLUTE FORM HAVING FLANGES FITTING UPON THE FLANGES OF THE CERAMIC VOLUTE LINER AND ENGAGING THE PERIPHERAL SHOULDERS OF SAID END DISC.
US141429A 1961-09-28 1961-09-28 Ceramic lined pump Expired - Lifetime US3149574A (en)

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Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3228236A (en) * 1962-04-19 1966-01-11 Du Pont Apparatus for corrosion-erosion testing
US3656861A (en) * 1970-04-15 1972-04-18 Wilfley & Sons Inc A Centrifugal pump with mating case plate volute halves and constant section impeller
US3871272A (en) * 1971-11-30 1975-03-18 Diemme Snc Intensive wine-making process and the relative plant for carrying it out
US3938908A (en) * 1972-03-16 1976-02-17 N.V. Industrieele Handelscombinatie Holland Pump
US4147468A (en) * 1975-08-21 1979-04-03 Mitsui Mining & Smelting Co., Ltd. Impeller type pump having seal means and protective means
US4212592A (en) * 1978-10-31 1980-07-15 General Electric Company Electromagnetic pump for molten metals
US4526510A (en) * 1983-03-07 1985-07-02 Hoffman Joseph H Double-walled centrifugal fan scroll and system of operation
US4722661A (en) * 1985-10-09 1988-02-02 Ngk Insulators, Ltd. Magnetic-drive centrifugal pump
US4806078A (en) * 1987-01-24 1989-02-21 Klein, Schanzlin & Becker Aktiengesellschaft Device for transmitting torque to brittle impellers of fluid flow machines
US4984966A (en) * 1987-09-15 1991-01-15 Warman International Limited Method of making liner
US6095771A (en) * 1995-12-30 2000-08-01 Robert Bosch Gmbh Fuel-feed unit
US20050095146A1 (en) * 2003-10-31 2005-05-05 Denso Corporation Fuel feed apparatus with reinforcing structure
WO2009149512A1 (en) * 2008-06-13 2009-12-17 Weir Minerals Australia Ltd An adjustable side liner for a pump
CN102927032A (en) * 2012-11-19 2013-02-13 宜兴市灵谷塑料设备有限公司 Centrifugal pump with silicon carbide ceramics lining

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US304809A (en) * 1884-09-09 Method of balancing gears or pulleys
US914283A (en) * 1908-03-30 1909-03-02 Byron Jackson Iron Works Dredger-pump.
US1172947A (en) * 1914-06-17 1916-02-22 Benjamin Denver Coppage Balanced roll for paper-making machines.
US1897947A (en) * 1928-11-10 1933-02-14 Bell & Howell Co Fan structure
US1952488A (en) * 1931-12-11 1934-03-27 American Locomotive Co Railway vehicle wheel
US1958108A (en) * 1930-02-15 1934-05-08 Victor J Milkowski Centrifugal pump
US1970435A (en) * 1932-01-09 1934-08-14 Baldwin Southwark Corp Balanced turbine or pump runner and method of balancing
US2029333A (en) * 1932-07-25 1936-02-04 Johnston Pump Company Turbine well pump
US2107260A (en) * 1936-03-04 1938-02-01 Ngk Insulators Ltd Corrosion resisting pump and blower
US2433589A (en) * 1939-05-25 1947-12-30 Nash Engineering Co Pump
US2658454A (en) * 1948-05-14 1953-11-10 Pfaudler Co Inc Glass-lined pump
US2868441A (en) * 1954-02-24 1959-01-13 Armstrong Siddeley Motors Ltd Plastic blades, particularly for a compressor rotor of a gas turbine engine

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US304809A (en) * 1884-09-09 Method of balancing gears or pulleys
US914283A (en) * 1908-03-30 1909-03-02 Byron Jackson Iron Works Dredger-pump.
US1172947A (en) * 1914-06-17 1916-02-22 Benjamin Denver Coppage Balanced roll for paper-making machines.
US1897947A (en) * 1928-11-10 1933-02-14 Bell & Howell Co Fan structure
US1958108A (en) * 1930-02-15 1934-05-08 Victor J Milkowski Centrifugal pump
US1952488A (en) * 1931-12-11 1934-03-27 American Locomotive Co Railway vehicle wheel
US1970435A (en) * 1932-01-09 1934-08-14 Baldwin Southwark Corp Balanced turbine or pump runner and method of balancing
US2029333A (en) * 1932-07-25 1936-02-04 Johnston Pump Company Turbine well pump
US2107260A (en) * 1936-03-04 1938-02-01 Ngk Insulators Ltd Corrosion resisting pump and blower
US2433589A (en) * 1939-05-25 1947-12-30 Nash Engineering Co Pump
US2658454A (en) * 1948-05-14 1953-11-10 Pfaudler Co Inc Glass-lined pump
US2868441A (en) * 1954-02-24 1959-01-13 Armstrong Siddeley Motors Ltd Plastic blades, particularly for a compressor rotor of a gas turbine engine

Cited By (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3228236A (en) * 1962-04-19 1966-01-11 Du Pont Apparatus for corrosion-erosion testing
US3656861A (en) * 1970-04-15 1972-04-18 Wilfley & Sons Inc A Centrifugal pump with mating case plate volute halves and constant section impeller
US3871272A (en) * 1971-11-30 1975-03-18 Diemme Snc Intensive wine-making process and the relative plant for carrying it out
US3938908A (en) * 1972-03-16 1976-02-17 N.V. Industrieele Handelscombinatie Holland Pump
US4147468A (en) * 1975-08-21 1979-04-03 Mitsui Mining & Smelting Co., Ltd. Impeller type pump having seal means and protective means
US4212592A (en) * 1978-10-31 1980-07-15 General Electric Company Electromagnetic pump for molten metals
US4526510A (en) * 1983-03-07 1985-07-02 Hoffman Joseph H Double-walled centrifugal fan scroll and system of operation
US4722661A (en) * 1985-10-09 1988-02-02 Ngk Insulators, Ltd. Magnetic-drive centrifugal pump
US4806078A (en) * 1987-01-24 1989-02-21 Klein, Schanzlin & Becker Aktiengesellschaft Device for transmitting torque to brittle impellers of fluid flow machines
US4984966A (en) * 1987-09-15 1991-01-15 Warman International Limited Method of making liner
US6095771A (en) * 1995-12-30 2000-08-01 Robert Bosch Gmbh Fuel-feed unit
US7442015B2 (en) * 2003-10-31 2008-10-28 Denso Corporation Fuel feed apparatus with reinforcing structure
US20050095146A1 (en) * 2003-10-31 2005-05-05 Denso Corporation Fuel feed apparatus with reinforcing structure
AU2009257193B2 (en) * 2008-06-13 2013-09-05 Weir Minerals Australia Ltd An adjustable side liner for a pump
AP3711A (en) * 2008-06-13 2016-05-31 Weir Minerals Australia Ltd An adjustable side liner for a pump
US20110142599A1 (en) * 2008-06-13 2011-06-16 Kevin Edward Burgess Adjustable side liner for a pump
US20110164973A1 (en) * 2008-06-13 2011-07-07 Glenn Raymond Smith Pump housing support
US9759224B2 (en) 2008-06-13 2017-09-12 Weir Minerals Australia Ltd. Adjustable side liner for a pump
WO2009149512A1 (en) * 2008-06-13 2009-12-17 Weir Minerals Australia Ltd An adjustable side liner for a pump
AU2009257192B2 (en) * 2008-06-13 2014-05-08 Weir Minerals Australia Ltd A pump housing support
US8790077B2 (en) 2008-06-13 2014-07-29 Weir Minerals Australia Ltd. Adjustable side liner for a pump
CN102066770B (en) * 2008-06-13 2015-02-18 伟尔矿物澳大利亚私人有限公司 An adjustable side liner for a pump
EA023108B1 (en) * 2008-06-13 2016-04-29 Уэйр Минералз Острэйлиа Лтд. An adjustable side liner for a pump
CN102066770A (en) * 2008-06-13 2011-05-18 伟尔矿物澳大利亚私人有限公司 An adjustable side liner for a pump
EA025659B1 (en) * 2008-06-13 2017-01-30 Уэйр Минералз Острэйлиа Лтд. Adjustable side liner for a pump
US9593692B2 (en) * 2008-06-13 2017-03-14 Weir Minerals Australia Ltd. Pump housing support
CN102927032A (en) * 2012-11-19 2013-02-13 宜兴市灵谷塑料设备有限公司 Centrifugal pump with silicon carbide ceramics lining

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