A simple pump solution for difficult pumping applications

RP2 Peristaltic Hose Pump and RP Mini Pump

Excellent Minerals Solutions

ENVIROTECH®

Peristaltic Pumps

The heavy duty Envirotech® RP2 peristaltic hose pump has a distinct advantage. Each pump is equipped with heavy duty bearings and shaft to carry the radial force from the rotor. This design protects the gear box from any transmitted stress and drastically increases its life. There is no need for a coupling, and motor alignment is no longer required. Along with a planetary gearbox, minimum footprint is achieved.

Instead of using a cast iron construction, the rugged pump and bearing frame are constructed of high tensile strength ductile iron. The Envirotech® RP2 peristaltic hose pump fulfills the industry’s needs by providing high quality performance and long working life.

The Weir Group has manufactured peristaltic hose pumps for over twenty years. The Envirotech® RP2 peristaltic hose pump is superbly simple and is ideal for pumping chemicals, slurries, sludges and other difficult corrosive and abrasive materials.

Simple to maintain and operate

• No seals or flush water

• No valves

• Runs dry

• Rugged, heavy duty, ductile iron construction

Whatever your industry… it is the pump for:

• Pilot plants

• High density/concentration fluids

• High viscosity media

• Shear sensitive fluids

• Stringy material

• Corrosives

• Abrasives

• Crystallizing products

• Dosing

• Self-priming

• High maintenance applications

• Dry running

• Operating without mechanical seals or flush water

The Envirotech® RP2 peristaltic hose pump is one of the most simple and reliable positive displacement pumps available in the industry

Suction DischargeTransfer

How the pump works

As the rotor turns, the hose is alternately compressed by two specially contoured shoes attached to the rotor which causes intermittent aspiration. This action draws the product into the hose where it is then pushed forward within the hose by the next rotating shoe until the product is discharged from the pump. The hose recovers its original shape immediately after the passage of each shoe, aided by an interactive vacuum system if required. Constant lubrication and cooling is provided by a specially formulated lubricant within the pump housing.

Cement transfer

1-3: Endurance factory testing

4-5: Multi-layer hose manufacturing

6: Manufacturing facility

There are a lot of hose pumps out there, but the heavy duty design of the Envirotech® RP2 peristaltic hose pump gives it a distinct advantage

Hose options

The hose, which is the key to any successful pump of this type, is the result of years of extensive development and testing. The nylon reinforced and multi-layer design provides superior hose integrity, durability and reliability, and provides an extensive working life that is commensurate with the product being pumped and the duty conditions demanded.

Hose material options:

• Natural rubber

• Buna N (Nitrile)

• Hydrocarbon resistant elastomer

• Food grade elastomers

• EPDM rubber

• Hypalon 1 2

3

6

4

5

Envirotech® RP2 peristaltic hose pump

1: Waste water treatment application (duplex pump)

2: Chemical application

3: Thickened sludge application

4: Waste water treatment application (duplex pump)

5: Largest installation of Envirotech® pumps in the world, with ninety-four peristaltic pumps

6: Mining thickener underflow application

7: Food industry application

Features and benefits

• Fully reversible flow

• Valveless and glandless

• Dry running capability

• High volumetric efficiency

• Accurate metering capability

• Excellent self-priming ability

• Rugged, heavy duty construction

• Four choices of flange orientation

• Ability to handle highly viscous media

• Excellent tolerance of abrasive and corrosive media

• Gentle, low shear, non-emulsifying pumping action

• Pumped product is contained entirely within the reinforced hose

• The casing acts as secondary containment for hazardous applications

• All auxiliary fittings and sensors are mounted on the reverse side of the pump, away from damage or obstruction of maintenance

• Easy maintenance and short downtime

• The hose and lubricant are the only required spares

Typical applications

• Belt press feed

• Thickener underflow

• Mineral processing

• Food pastes

• Chemical slurries

• Carbon in pulp

• Thickened sludge

• Scum and grease

• Grout transfer

• Paints and coatings

• Ceramics

• Pilot plants

1 2

6

4

7

5

3

1: Mineral processing

2: Pilot plants

Filtered breather for dusty environments

Bearing frame assembly with heavy duty shaft and lubricated A/F bearing

Long life, multi-layered and machined hose available in several elastomers

Epoxy protected rotor

Ribbed cast body with epoxy coating outside and inside

Burst hose sensor (float or capacitive type)

Planetary gear reducer for heavy shock load and high S.F.

High efficiency VFD duty motor

Variable frequency drive (optional)

Space saving, sturdy pedestals (epoxy coated or galvanized)Heavy duty, cast

flange spool

Hose insert available in 316 S.S. or other thermoplasticsStainless steel

hose clamps

Corrosion resistant epoxy compression shoes

316 S.S. shims

Viewing window with lube level indication

Zinc plated hardware

1 2

RP2-40RP2-50

RP2-65

RP2-80

RP2-

100

2xR

P2-

100

RP-

125

Pump RPM

Flow

US

GPM

Flow

m3 /

h

Continuous Duty Envirotech® RP2 Pump Range

See individual curves for intermittent duty

Note:

1. Weight includes pump, supports, gearbox and motor

2. Not for construction unless certified

Pump Unit A B C D E F G H I J K L M N Weight

RP2-40in 17.72 17.32 6.77 1.38 22.32 15.43 5.31 9.65 1.97 0.71 1.57 30.87 29.33 1.5 701 lbs

mm 450 440 172 35 567 392 135 245 50 18 40 784 745 38.1 318 kgs

RP2-50in 22.24 21.26 7.28 1.38 27.24 17.91 6.30 10.63 2.09 0.71 1.97 37.71 34.17 2 1045 lbs

mm 565 540 185 35 692 455 160 270 53 18 50 958 868 50.8 474 kgs

RP2-65in 25.2 29.13 9.06 1.77 34.37 23.62 5.19 12.01 3.15 0.71 2.56 45.28 45.57 2.5 1962 lbs

mm 640 740 230 45 873 600 130 305 80 18 65 1150 1132 63.5 890 kgs

RP2-80in 29.92 33.86 8.66 1.77 42.28 25.59 8.07 15.55 5.91 0.87 3.15 52.95 49.41 3 2765 lbs

mm 760 860 220 45 1074 650 205 395 150 22 80 1345 1255 76.2 1254 kgs

RP2-100in 31.50 39.37 9.84 1.97 47.24 29.53 9.41 17.72 5.51 0.87 3.94 57.80 56.69 4 4462 lbs

mm 800 1000 250 50 1200 750 239 450 140 22 100 1 468 1440 101.6 2024 kgs

Envirotech® RP2 Peristaltic Pump dimensions

Envirotech® RP2 Peristaltic Pump

RP-10

RP-20

RP-25

Pump RPM

Flow

US

GPM

Flow

m3 /

h

Continuous Duty Envirotech® RP Mini Pump Range

See individual curves for intermittent duty

Envirotech® RP-10 and RP-20 pumps Envirotech® RP-25 pump

Pump Unit A B C D E F G H I J K L M N Weight

RP-10in 4.53 7.72 10.71 7.48 7.48 4.7 23.82 6.97 6.69 3.15 .63 .35 5.79 4.13 33 lbs

mm 115 196 272 190 190 120 605 177 170 80 16 9 147 105 15 kgs

RP-20in 7.56 10.2 12.8 11.42 7.48 3.19 25.6 6.97 6.69 3.31 .98 .35 7.15 6.5 57 lbs

mm 192 259 325 290 190 81 650 177 170 84 25 9 181.5 165 26 kgs

RP-25in 10.31 12.19 16.34 14.96 8.66 3.7 32.87 8.86 22.44 3.78 1 .59 8.09 7.68 123 lbs

mm 262 309.5 415 380 220 94 835 225 570 96 25 15 205.5 195 56 kgs

Envirotech® Mini Pump dimensions

Envirotech® RP Mini Pump

Note:

1. Weight includes pump, supports, gearbox and motor

2. Not for construction unless certified

Excellent Minerals Solutions

Weir Minerals Canada

2360 Millrace CourtMississauga, Ontario L5N 1W2 Canada

Tel: 905 813 8190 Fax: 905 813 8170 www.weirminerals.com

Copyright © 2013 Weir Slurry Group Inc. All rights reserved. WARMAN is a trademark and/or registered trademark of Weir Minerals Australia Ltd and Weir Group African IP Ltd; CAVEX, HAZLETON and MULTIFLO are trademarks and/or registered trademarks of Weir Minerals Australia Ltd; LEWIS and LEWIS PUMPS are trademarks and/or registered trademarks of Envirotech Pumpsystems Inc; GEHO is a trademark and/or registered trademark of Weir Minerals Nether-lands bv; FLOWAY is a trademark and/or registered trademark of Weir Floway Inc.; VULCO is a trademark and/or registered trademark of Vulco SA; ISOGATE is a trademark and/or registered trademark of Weir do Brasil Ltda.; LINATEX is a trademark and/or registered trademark of Linatex Ltd; ENDURON is a trademark and/or registered trademark of Weir Minerals Europe Ltd; WEIR is a trademark and/or registered trademark of Weir Engineering Services Ltd* KHD is a Humboldt Wedag GmbH brand used under license by The Weir Group.

For further information on any of these products, services or support services, please contact your nearest sales office or visit:

www.weirminerals.com

Geographical footprint

Weir Minerals has the geographical presence to service all the major minerals markets around the world. This global supply capability provides a competitive advantage in this relatively fragmented market.

Weir Minerals has operations across:

• North America • Europe • Latin America • Australia • Africa • Asia • Former Soviet Union

Customer profile

Our customers range from the world’s largest minerals and mining multinationals to single pumpset operators.

We support customer operations worldwide with consistent products and local engineering expertise. As part of The Weir Group, we have the reach and resource to build close, long term relationships with all our customers, helping them to achieve ...

The Lowest Cost of Ownership

Service and support

This global capability with our own dedicated service teams combined with the service centres of our sister companies within The Weir Group and those of our strategic partners provide support in virtually every developed market.