Excellent Engineering Solutions. Solids Handling Pumps. Recessed Vortex Impeller Pumps CLEAR LIQUID

Transcription

1 Solids Handling Pumps Excellent Engineering Solutions Recessed Vortex Impeller Pumps CLEAR LIQUID

2 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 Less chance of pump blockages 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. The WEMCO hydraulics design reduces wear 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. Less Maintenance Simply and robustly designed, the WEMCO pump needs minimum maintenance, no special tools, and no complex adjustments. Impeller Types Cup shape profile 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

3 Type A - Monobloc Pump Horizontal monobloc pump Vertical monobloc pump on support, with elbow type suction pipe. Vertical mounting on support Recessed vortex impeller, curved or flat profile Free passage, equal to DN : 50/80/100/125/150 mm. PN 10 flanges Tangential discharge Stainless Steel 316L Abrasion resistant materials up to 450HB Other options on request : Uranus B6, bronze... Single mechanical seals, with or without lubrication Joints : Nitrile, Butyl, EPDM, Viton, Teflon Direct drive IEC Three-phase motor - 50/60 Hz - IP55 - Class F Standard options Thermal protection & anti condensation heaters Motors to ATEX specification Immersible electric motor Hydraulic or pneumatic motor Motor with integrated speed variator up to 11kW Customized construction on request AB80 AB100 AF100 AF150 A50 Discharge 3 /h

4 Type S - Submersible Pump Submersible monobloc pump - Free standing - B type - Duck foot & guide rail mounted units - R type Dick Foot & Guide rail mounted units Free standing units with optional agitator Recessed impeller, curved profile Free passage equal to DN : 50/80/100 mm. Stainless Steel 316L Abrasion resistant materials up to 450HB Other materials on request Double mechanical seals, oil bath lubrication Joints : Nitrile, Butyl, EPDM, Viton, Teflon Optional seal lubrication moisture detector Direct drive 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 Submersible motor with cooling jacket Customized construction on request S50 S80 SL100 Discharge 3 /h

5 Type WP - Vertical Cantilever Pump Short version Suction tube extension pipe 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 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 High Chrome Iron minimum 600 HB Stainlesse Steel 316L Other materials on request No shaft selaing is required (pump can run dry without damage). Direct drive or via coupling or by pulley / drive belt (depending on model) 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 Motor to ATEX specification External tank mounting Hydraulic or pneumatic motor drive Motor with integrated speed variator up to 11kW Customized construction on request WP50 WP100F WP150F WP80B WP100B WP80A Discharge 3 /h

6 Type F & DL - Horizontal Pump Horizontal pump with base Vertical mounted pump on support, with suction pipe elbow Drive via coupling or by pulley / drive belt 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 Stainless Steel 316L Other materials on request PTFE braided gland packing Single or double mechanical seals, normal or cartridge type Joints : Nitrile, Butyl, EPDM, Viton, Teflon Drive via coupling or by pulley / drive belt Horizontal on a fabricated steel base or vertical mounted IEC Three-phase motor - 50/60 Hz - IP55 - Class F Optional thermal protection and anti condensation heaters Motors to ATEX specification Hydraulic, pneumatic or diesel motor drive Motor with integrated speed variator up to 11 kw Customized construction on request F5 F2 F3 DL4 F4 F6 Discharge 3 /h

7 Type C - Horizontal Pump Horizontal pump also available with fabricated steel base for the heavier duties Overhead vee driven pump 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 High Chrome Iron wetted parts min m 600 bhn Other materials on request PTFE braided gland packing Single or double mechanical seals, normal or cartridge type Joints : Nitrile, Butyl, EPDM, Viton, Teflon Drive via a coupling or by pulley / drive belt Vertical mounted modified unit also available IEC Three-phase motor - 50/60 Hz - IP55 - Class F Optional thermal protection and anti condensation heaters Motors to ATEX specification Hydraulic, pneumatic or diesel motor drive Motor with integrated speed variator up to 11 kw Customized constuction on request C 3C 4C 6C 8C 10C Discharge 3 /h

8 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. Sales branches : UK Office : Lyon Tel : Paris Fax : Bordeaux Nantes Nancy Lille Marseille Casablanca (Morocco) Castres factory (81) Weir Minerals France Europarc du Chêne 11 rue Pascal BRON Cedex FRANCE Tel: Fax: weir@weirminerals.com.fr Excellent Engineering Solutions CLEAR LIQUID WEMCO - G - ENG - 03/08