Wemco A - AxFlow

Solids Handling Pumps
Recessed Vortex Impeller Pumps
Excellent
Engineering
Solutions
CLEAR LIQUID
The Vortex Principle
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
Characteristics and
Advantages of the Vortex
The WEMCO hydraulics
design reduces wear
Less chance of pump blockages
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.
The 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 life
The 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 Maintenance
Simply and robustly designed, the WEMCO pump
needs minimum maintenance, no special tools,
and no complex adjustments.
Cup shape profile
Impeller Types
Tangential discharge
In order to always offer the best solution to for
each application different types of impellers are
available.
Impeller with
curved vane
Impeller with
radial vanes
Flat impeller
profile
Curved impeller
profile
Type A - Monobloc Pump
INSTALLATION
z Horizontal monobloc pump
z Vertical monobloc pump on support,
with elbow type suction pipe.
Vertical mounting
on support
CONSTRUCTION
DRIVE
z Recessed vortex impeller, curved or flat profile
z Free passage, equal to DN :
50/80/100/125/150 mm.
z PN 10 flanges
z Tangential discharge
z Direct drive
MATERIAL OPTIONS
z FGL250 Cast Iron
z Stainless Steel 316L
z Abrasion resistant materials up to 450HB
z Other options on request : Uranus B6, bronze...
SEALING
z Single mechanical seals, with or without
lubrication
z Joints : Nitrile, Butyl, EPDM, Viton®, Teflon®
POWER UNIT
z IEC Three-phase motor - 50/60 Hz - IP55 - Class F
z Standard options
z Thermal protection & anti condensation heaters
OTHER OPTIONS
z Motors to ATEX specification
z Immersible electric motor
z Hydraulic or pneumatic motor
z Motor with integrated speed variator
up to 11kW
z Customized construction on request
Performance Diagram
HMT
in m
AF100
AF150
AB80
AB100
A50
Discharge in m3/h
Type S - Submersible Pump
INSTALLATION
z Submersible monobloc pump
- Free standing - ‘B’ type
- Duck foot & guide rail mounted units - ‘R’ type
Dick Foot & Guide rail mounted units
CONSTRUCTION
DRIVE
z Recessed impeller, curved profile
z Free passage equal to DN : 50/80/100 mm.
z Direct drive
POWER UNIT
MATERIAL OPTIONS
Free standing units with
optional agitator
z FGL250 Cast Iron
z Stainless Steel 316L
z Abrasion resistant materials up to 450HB
z Other materials on request
z IEC - Three phase motor - Cast Iron housing 50/60 Hz - IP68 - Class F
z Depending on size, D.O.L. or star/delta start up
z Optional thermal protection & heaters
ACCESSORIES
SEALING
z Double mechanical seals, oil bath lubrication
z Joints : Nitrile, Butyl, EPDM, Viton®, Teflon®
z Optional seal lubrication moisture detector
z 10m electric lead and 5 m galvanised steel
chain delivered as standard, additional
lenghts available
z Optional stainless steel electric lead casing
and stainless steel chain
OTHER OPTIONS
z Submersible motor with cooling jacket
z Customized construction on request
Performance Diagram
HMT
in m
S80
SL100
S50
Discharge in m3/h
Type WP - Vertical Cantilever Pump
INSTALLATION
z Vertical mounted pump with no wetted
bearings or support bushes
z Column lengths from 400 to 1900 mm, suction
tube extension pipes for deeper sumps available
CONSTRUCTION
Short version
z Recessed impeller (curved, flat, or cupped
impeller profiles available)
z Free passage equal to DN :
50/80/100/150/200/250 mm
z PN10 flanges
z Tangential discharge
z Raised Cast Iron bearing housing fitted when
column lenght greater than 600 mm
MATERIAL OPTIONS
z FGL250 Cast Iron
z High Chrome Iron minimum 600 HB
z Stainlesse Steel 316L
z Other materials on request
SEALING
Suction tube extension pipe
z No shaft selaing is required (pump can run dry
without damage).
DRIVE
z Direct drive or via coupling or by pulley / drive belt
(depending on model)
POWER UNIT
zIEC Three-phase motor - 50/60 Hz - IP55 - Class F
z Optional thermal protection and
anti condensation heaters
ACCESSORIES
z Discharge pipe, depending on model
z Suction tube adaptator up to 4 m
z Purged bearing protection
OTHER OPTIONS
z Motor to ATEX specification
z External tank mounting
z Hydraulic or pneumatic motor drive
z Motor with integrated speed variator up to 11kW
z Customized construction on request
Performance Diagram
HMT
in m
WP100F
WP150F
WP80B
WP100B
WP80A
WP50
Discharge in m3/h
Type F & DL - Horizontal Pump
INSTALLATION
z Horizontal pump with base
z Vertical mounted pump on support,
with suction pipe elbow
Drive via coupling or by
pulley / drive belt
CONSTRUCTION
DRIVE
z Recessed impeller, flat profile or with cup
shape impeller (DL)
z Free passage, equal to DN :
50/80/100/125/150 mm
z PN10 flanges
z Tangential discharge
z Grease lubricated bearings
z Drive via coupling or by pulley / drive belt
z Horizontal on a fabricated steel base
or vertical mounted
MATERIAL OPTIONS
z FGL250 Cast Iron
z Stainless Steel 316L
z Other materials on request
POWER UNIT
z IEC Three-phase motor - 50/60 Hz - IP55 - Class F
z Optional thermal protection and
anti condensation heaters
OTHER OPTIONS
SEALING
z PTFE braided gland packing
z Single or double mechanical seals, normal
or cartridge type
z Joints : Nitrile, Butyl, EPDM, Viton®, Teflon®
z Motors to ATEX specification
z Hydraulic, pneumatic or diesel motor drive
z Motor with integrated speed variator up to 11 kW
z Customized construction on request
Performance Diagram
HMT
in m
F5
F4
F6
F3
DL4
F2
Discharge in m3/h
Type C - Horizontal Pump
INSTALLATION
z Horizontal pump also available with fabricated
steel base for the heavier duties
CONSTRUCTION
Overhead vee driven pump
DRIVE
z Recessed impeller, cup shaped impeller
or flat profile ‘R’
z Radially split volute casing
z Free passage equal to DN :
50/75/100/150/200/250 mm
z PN10 flanges
z Tangential discharge
z Heavy duty oil lubricated bearing housing
z Drive via a coupling or by pulley / drive belt
z Vertical mounted modified unit also available
POWER UNIT
z IEC Three-phase motor - 50/60 Hz - IP55 - Class F
z Optional thermal protection and
anti condensation heaters
MATERIAL OPTIONS
z High Chrome Iron wetted parts min’m 600 bhn
z FGL250 Cast Iron
z Other materials on request
SEALING
z PTFE braided gland packing
z Single or double mechanical seals, normal or
cartridge type
z Joints : Nitrile, Butyl, EPDM, Viton®, Teflon®
OTHER OPTIONS
z Motors to ATEX specification
z Hydraulic, pneumatic or diesel motor drive
z Motor with integrated speed variator
up to 11 kW
z Customized constuction on request
Performance Diagram
HMT
in m
60
50
40
30
20
15
2C
10
9
8
7
6
5
4
3C
4C
6C
8C
10C
3
2
Discharge
in m3/h
1
1
2
3
4
5 6 7 8 910
15
20
30 40 50 60 80 100 150 200
300 400
600
1000
2000 3000
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.
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
+33 383 54 37 63
+33 320 82 76 93
Marseille
+33 442 11 56 45
Casablanca
(Morocco)
00 212 22 798483
Castres factory (81)
Weir Minerals France
Europarc du Chêne
11 rue Pascal
69673 BRON Cedex
FRANCE
Tel: +33 472 81 72 72
Fax: +33 472 81 76 43
[email protected]
Excellent
Engineering
Solutions
CLEAR LIQUID
WEMCO - G - ENG - 03/08
Nancy
Lille