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Solids Handling Pumps
CLEAR LIQUID
ExcellentEngineeringSolutions
Recessed Vortex Impeller Pumps
The WEMCO hydraulics
design reduces wear
The Vortex Principle
Impeller Types
Characteristics and
Advantages of the Vortex
The WEMCO recessed impeller has a curved
profile, which directs solids away from the volute
walls and on through the discharge, thereby
considerably reducing wear.
This exclusive concept, when associated with
tangential discharge, provides unequalled
resistance qualities and thus greatly reduces the
risk of choking.
Impeller with
curved vane
Impeller with
radial vanes
Tangential dischargeCup shape profile
Curved impeller
profile
Flat impeller
profile
In order to always offer the best solution to for
each application different types of impellers are
available.
The VORTEX technique developed by WEMCO is based on the principle of a whirlpool : a vortex is
created by the rotating recessed impeller, extending into the suction line, drawing the liquid / solids
into the pump and then quickly through the discharge whilst minimising fluid / solids contact with the
impeller and the volute.
This provides the WEMCO pump with a gentle pumping action and good resistance against wear with little
risk of plugging
Less chance of pump blockagesThe WEMCO vortex pumps are designed with the
impeller fully recessed in the volute casing
providing an unobstructed passage way between
suction and discharge allowing suction size solids,
whether soft, hard or fibrous to pass through the
pump without choking.
Extending pump lifeThe WEMCO pump has no close tolerances or
wear rings in the pump chamber and because the
majority of particles do not touch the impeller or
the volute, wear is reduced to a minimum. In
addition, with different material options available
the working life of the product can be further
extended.
Less MaintenanceSimply and robustly designed, the WEMCO pump
needs minimum maintenance, no special tools,
and no complex adjustments.
Type A - Monobloc Pump
INSTALLATION
Horizontal monobloc pump
Vertical monobloc pump on support,
with elbow type suction pipe.
CONSTRUCTION
Recessed vortex impeller, curved or flat profile
Free passage, equal to DN :
50/80/100/125/150 mm.
PN 10 flanges
Tangential discharge
MATERIAL OPTIONS
FGL250 Cast Iron
Stainless Steel 316L
Abrasion resistant materials up to 450HB
Other options on request : Uranus B6, bronze...
SEALING
Single mechanical seals, with or without
lubrication
Joints : Nitrile, Butyl, EPDM, Viton®, Teflon®
DRIVE
Direct drive
POWER UNIT
IEC Three-phase motor - 50/60 Hz - IP55 - Class F
Standard options
Thermal protection & anti condensation heaters
OTHER OPTIONS
Motors to ATEX specification
Immersible electric motor
Hydraulic or pneumatic motor
Motor with integrated speed variator
up to 11kW
Customized construction on request
Performance Diagram
Vertical mounting
on support
Discharge in m3/h
A50
AB80
AB100
AF100
AF150
HMT
in m
Type S - Submersible Pump
Performance Diagram
INSTALLATION
Submersible monobloc pump
- Free standing - ‘B’ type
- Duck foot & guide rail mounted units - ‘R’ type
CONSTRUCTION
Recessed impeller, curved profile
Free passage equal to DN : 50/80/100 mm.
MATERIAL OPTIONS
FGL250 Cast Iron
Stainless Steel 316L
Abrasion resistant materials up to 450HB
Other materials on request
SEALING
Double mechanical seals, oil bath lubrication
Joints : Nitrile, Butyl, EPDM, Viton®, Teflon®
Optional seal lubrication moisture detector
DRIVE
Direct drive
POWER UNIT
IEC - Three phase motor - Cast Iron housing -
50/60 Hz - IP68 - Class F
Depending on size, D.O.L. or star/delta start up
Optional thermal protection & heaters
ACCESSORIES
10m electric lead and 5 m galvanised steel
chain delivered as standard, additional
lenghts available
Optional stainless steel electric lead casing
and stainless steel chain
OTHER OPTIONS
Submersible motor with cooling jacket
Customized construction on request
Dick Foot & Guide rail mounted units
Free standing units with
optional agitator
Discharge in m3/h
HMT
in m
S50
S80
SL100
Type WP - Vertical Cantilever Pump
Performance Diagram
INSTALLATION
Vertical mounted pump with no wetted
bearings or support bushes
Column lengths from 400 to 1900 mm, suction
tube extension pipes for deeper sumps available
CONSTRUCTION
Recessed impeller (curved, flat, or cupped
impeller profiles available)
Free passage equal to DN :
50/80/100/150/200/250 mm
PN10 flanges
Tangential discharge
Raised Cast Iron bearing housing fitted when
column lenght greater than 600 mm
MATERIAL OPTIONS
FGL250 Cast Iron
High Chrome Iron minimum 600 HB
Stainlesse Steel 316L
Other materials on request
SEALING
No shaft selaing is required (pump can run dry
without damage).
DRIVE
Direct drive or via coupling or by pulley / drive belt
(depending on model)
POWER UNIT
IEC Three-phase motor - 50/60 Hz - IP55 - Class F
Optional thermal protection and
anti condensation heaters
ACCESSORIES
Discharge pipe, depending on model
Suction tube adaptator up to 4 m
Purged bearing protection
OTHER OPTIONS
Motor to ATEX specification
External tank mounting
Hydraulic or pneumatic motor drive
Motor with integrated speed variator up to 11kW
Customized construction on requestSuction tube extension pipe
Short version
Discharge in m3/h
HMT
in m
WP50WP80A
WP80BWP100B
WP100F
WP150F
Type F & DL - Horizontal Pump
Performance Diagram
INSTALLATION
Horizontal pump with base
Vertical mounted pump on support,
with suction pipe elbow
CONSTRUCTION
Recessed impeller, flat profile or with cup
shape impeller (DL)
Free passage, equal to DN :
50/80/100/125/150 mm
PN10 flanges
Tangential discharge
Grease lubricated bearings
MATERIAL OPTIONS
FGL250 Cast Iron
Stainless Steel 316L
Other materials on request
SEALING
PTFE braided gland packing
Single or double mechanical seals, normal
or cartridge type
Joints : Nitrile, Butyl, EPDM, Viton®, Teflon®
DRIVE
Drive via coupling or by pulley / drive belt
Horizontal on a fabricated steel base
or vertical mounted
POWER UNIT
IEC Three-phase motor - 50/60 Hz - IP55 - Class F
Optional thermal protection and
anti condensation heaters
OTHER OPTIONS
Motors to ATEX specification
Hydraulic, pneumatic or diesel motor drive
Motor with integrated speed variator up to 11 kW
Customized construction on request
Drive via coupling or by
pulley / drive belt
Discharge in m3/h
HMT
in m
F4
F6
F5
F3
DL4F2
Type C - Horizontal Pump
Performance Diagram
INSTALLATION
Horizontal pump also available with fabricated
steel base for the heavier duties
CONSTRUCTION
Recessed impeller, cup shaped impeller
or flat profile ‘R’
Radially split volute casing
Free passage equal to DN :
50/75/100/150/200/250 mm
PN10 flanges
Tangential discharge
Heavy duty oil lubricated bearing housing
MATERIAL OPTIONS
High Chrome Iron wetted parts min’m 600 bhn
FGL250 Cast Iron
Other materials on request
SEALING
PTFE braided gland packing
Single or double mechanical seals, normal or
cartridge type
Joints : Nitrile, Butyl, EPDM, Viton®, Teflon®
DRIVE
Drive via a coupling or by pulley / drive belt
Vertical mounted modified unit also available
POWER UNIT
IEC Three-phase motor - 50/60 Hz - IP55 - Class F
Optional thermal protection and
anti condensation heaters
OTHER OPTIONS
Motors to ATEX specification
Hydraulic, pneumatic or diesel motor drive
Motor with integrated speed variator
up to 11 kW
Customized constuction on request
Overhead vee driven pump
Discharge
in m3/h
HMT
in m
2C
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20
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WARMAN®
Centrifugal Slurry Pumps
GEHO®
Positive Displacement Slurry Pumps
CAVEX®
Hydrocyclones
ISOGATE®
Slurry Valves
VULCO®
Wear Resistant Linings
Weir Minerals France manufactures WEMCO vortex pumps in its factory in Castres.
For further information concerning our products and services, please contact your nearest branch.
www.weirminerals.com
Sales branches : UK Office :
Lyon +33 472 81 06 36 Tel : +44 115 9328300
Paris +33 160 70 88 14 Fax : +44 115 9328360
Bordeaux +33 556 57 03 33
Nantes +33 240 72 89 82
Nancy +33 383 54 37 63
Lille +33 320 82 76 93
Marseille +33 442 11 56 45
Casablanca 00 212 22 798483(Morocco)
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ExcellentEngineeringSolutions
Weir Minerals France
Weir Minerals has an advanced product range incorporating market leading brands covering virtually any application in any environment.
Our global leadership in slurry pumps is combined with innovative designs in complementary products such as mill liners,
hydrocyclones and slurry valves.
Europarc du Chêne
11 rue Pascal
69673 BRON Cedex
FRANCE
Tel: +33 472 81 72 72
Fax: +33 472 81 76 43
WEM
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Castres factory (81)