Home News About Us Contact Us

Peristaltic Pumps:

ģ Larox Severe Duty Industrial Series

• Watson-Marlow Bredel Series

• Hoses for Competitive Pumps

 

Back to Pumps

Larox Severe Duty Industrial Series



Design

The operating principle of Larox pumps is based on "peristaltic effect". As a cylindrical rotor rolls along the hose, a process medium gets pushed forward through the hose.  At the same time the hose behind the compression point reverts to its original round shape creating a suction at the pump inlet port and the hose bore re-fills with pumped medium. No backward flow can occur as the hose is squeezed tight by the roller.

LPP type pumps LPP-D type pumps

The elastomer hose forming a full circle inside the casing is compressed only once per pump revolution. The hose is the only part of the pump in contact with the pumped medium, as well as the only wearing part. Because the pump is seal-less it is not damaged even if runs dry for longer periods of time. Due to the very smooth peristaltic operation principle, hose pumps are very gentle and do not stir or shear the pumped medium.

Back to the top

Benefits

• Hose is compressed only once per revolution. As a result, the hose serves up to five times longer than in shoe design pumps.
• Larox pumps can run continuously at high speed without heating or damage to hose or bearings, as compared with shoe design peristaltic pumps.
• Rolling over the hose creates less friction, and therefore, only a fraction of glycerine required by shoe design peristaltic pumps. Glycerine is not needed for heat dissipation.
• No U-turns are necessary. Larox inlet and outlet mounting are inline similar to a usual pumping scheme.
• Larox motor size is typically ½ the size of traditional shoe design peristaltic pump motors, saving thousands of dollars annually in energy consumption.
• At low speeds Larox motor will not trip due to drag like shoe design pumps.
• Floor space requirements for Larox pumps are typically 1/3 that of conventional shoe hose pumps. The annual operating cost savings compared to shoe design peristaltic pumps is often as much as the cost of a new pump.
• Ideal for accurate dosing, metering and flow control as the pump discharge flow does not depend on the pipeline pressure.
• Reversible rotation.
• No mixing or shearing of the medium.
• Easy installation and maintenance.

Back to the top

Typical Applications

Larox peristaltic pumps have proven their superiority in a wide range of industries and applications. Larox heavy duty pumps are a perfect solution for dosing and industrial transfer of various slurries with high solid content, abrasive, aggressive, corrosive, viscous, and crystallizing media.

Industry Applications/Media
Mining and Metal Industry, Minerals Processing Metal concentrates and mineral slurries, flocculants
Chemical Process Industry Paints, acids, resins
Water and Effluent Treatment Slurries, sludge, mud, additives
Wood, Pulp and Paper Industry Paper coatings, glues, additives
Pigments and Fillers GCC, PCC, talc, kaolin, TiO2
Energy Production Lime, waste slurries, gypsum
Food and Beverage Industry Filtering and filtration aids, diatomaceous earth, starch. NR and NBR hoses has been tested and shown to satisfy requirements for a short-term contact with food. Please contact us for details and restrictions.
Construction Industry Mortars, plasters, bentonite, cement
Oil and Offshore Drilling mud, waste sludge

Back to the top

Specifications

Larox pumps come in two types: LPP (for general purposes) and LPP-D (for dosing applications). The general purposes LPP pumps are available in hose sizes of 1", 1.5", 2.5", and 3". The LPP can also be equipped with a control unit. Please see Auxiliaries and Expendables for a list of accessories.

  LPP DN1"
(LPP DN25)
LPP DN1.5"
(LPP DN40)
LPP DN2.5"
(LPP DN65)
LPP DN3"
(LPP DN80)
Hose bore and flange connection 1"
(25 mm)
1.5"
(40 mm)
2.5"
(65 mm)
3"
(80 mm)
Max flow 9.7 GPM
(2.2 mŗ/h)
37.5 GPM
(8.5 mŗ/h)
88 GPM
(20 mŗ/h)
176 GPM
(40 mŗ/h)
Flow per revolution 0.08 gallons
(0.28 L)
0.33 gallons
(1.25 L)
1.37 gallons
(5.4 L)
3.0 gallons
(11.6 L)
Max pressure 150 psig
(10 bar)
150 psig
(10 bar)
150 psig
(10 bar)
108 psig
(7.5 bar)
Lubricant volume 0.16 gallons
(0.8 L)
0.24 gallons
(1 L)
0.5 gallons
(1.9 L)
2.1 gallons
(8 L)
Weight ~ 286 lbs
(~ 130 kg)
~ 792 lbs
(~ 360 kg)
~ 2112 lbs
(~ 960 kg)
~ 5512 lbs
(~ 2500 kg)
Catalogue Number - - - -
Price, CA$ Request Request Request Request

The dosing LPP-D pumps are available in hose sizes of 0.5", 0.75", and 1".

  LPP-D0.5"
(LPP-D15)
LPP-D0.75"
(LPP-D20)
LPP-D1"
(LPP-D25)
Hose bore and flange connection 0.5"
(15 mm)
0.75"
(20 mm)
1"
(25 mm)
Flow per revolution 0.026 gallons
(0.1 L)
0.05 gallons
(0.18 L)
0.08 gallons
(0.3 L)
Max flow 2.6 GPM
(0.6 mŗ/h)
4.8 GPM
(1.1 mŗ/h)
8.8 GPM
(2.0 mŗ/h)
Max pressure 110 psig
(7.5 bar)
110 psig
(7.5 bar)
110 psig
(7.5 bar)
Lubricant volume 0.11 gallons
(0.4 L)
0.11 gallons
(0.4 L)
0.11 gallons
(0.4 L)
Weight ~ 103 lbs
(~ 47 kg)
~ 103 lbs
(~ 47 kg)
~ 132 lbs
(~ 60 kg)
Catalogue Number - - -
Price, CA$ Request Request Request

For optional helical bevel geared motors with electro-mechanical brake please proceed to ordering information.

Available hose materials:

Hose Material Applications Colour Code
SBRT
(Styrene Butadiene)
Larox standard hose material. Good for wearing and  high-cycling applications. Resists against some chemicals. Temperature range: –40 to 248 ēF (–40 to 120 ēC). Red
EPDM
(Ethylene Propylene)
Larox standard hose material. Resistant to many chemicals, good for low-cycling applications. Temperature range: –40 to 212 ēF (–40 to 100 ēC). Violet
NR
(Natural rubber)
For extremely wearing high-cycling applications. Temperature up to 175 °F (79 ēC). Light blue
NBR
(Hydrogenated nitrile)
Good for high-temperature low-cycling applications, e.g. oils and fats. Temperature up to 320 °F (160 ēC). Yellow

Please go to ordering information for different hose diameters and catalogue numbers.

Back to the top

Auxiliaries and Expendables

LPP pumps:

• Optional helical bevel geared motors with electro-mechanical brake.
• Electric cooling fan (required when turn down ratio in control use (VFD) bigger then 1:2.5 from nominal flow).
• Drive controls:

– Nord Gear SK 700-series frequency inverter.
– Nord Gear Vector MC-series frequency inverters with control panel MC.
– Nord Gear SK300-series integrated frequency inverter.

• Hose leak detector.
• Pressure transmitter.
• Revolution detector.
• Connector for pressure transmitter.
• Connector hose.
• Spare hoses.
• Genuine hose lubricant.

LPP-D pumps:

• Optional helical shaft geared motors with termistors TF.
• Electric cooling fan (required when turn down ratio in control use (VFD) greater than 1:2.5 from nominal flow).
• Drive controls:

– Nord Gear SK 500-series frequency inverter.
– Nord Gear Vector MC-series frequency inverters with control panel MC.
– Nord Gear SK300-series integrated frequency inverter.

• Hose leak detector.
• Revolution detector.
• Spare hoses.
• Genuine hose lubricant.

Please refer to ordering information for details and catalogue numbers.

Back to the top

Documentation

  LPP Pumps LPP-D Pumps
Brochure Metric Units; Imperial Units Metric Units; Imperial Units
Datasheets Metric Units: pump types
DN25, DN40, DN65, DN80
Imperial Units: pump types
DN1", DN1.5", DN2.5", DN3"
Metric Units: pump types
DN15, DN20, DN25
Imperial Units: pump types
D0.5", D0.75", D1"
Manuals Full version; Abridged Full version; Abridged

Back to the top

Ordering Information

We represent and distribute Larox products across western Canada, including the provinces of British Columbia, Alberta, Saskatchewan, and Manitoba. To download the detailed list of auxiliaries, expendables, their specifications and catalogue numbers (MS Excel format) please click the links below:
• LPP pumps;
• LPP-D pumps.

Do not hesitate to contact us if you have any questions or wish additional information.

Back to the top

Phone (403) 287-2345 • Toll-free 1-(800)-565-2345 • Fax (403) 287-1355 • E-mail: sincaninc@telus.net

© 2006 Sin-Can Inc. All rights reserved.