Peristaltic Pumps

Peristaltic Pumps

Tapflo UK are proud to be the exclusive UK distributor for Albin Pump. Their Peristaltic Pumps combine the robust materials with smart, simple design solutions in order to maximise pump efficiency and minimise maintenance.

Two key issues facing customers today are a need for lower operational costs and reduced downtime. A Peristaltic Pump is an excellent pumping solution as they do not operate with valves, pistons, stators or rotating elements in the fluid. Furthermore, the Peristaltic Pump series has been designed so that you can quickly and easily change the hose inside the pump without technical knowledge being required. We only work with high quality compounded rubbers for the hose that have been reinforced with 2 to 6 individual layers of braided polyamide and with an outer layer made to strict tolerances to ensure perfect compression. The characteristics of Tapflo hoses enable them to last approximately 30 % longer than other hoses on the market. They also fit many other Peristaltic Hose Pumps on the market.

An additional benefit that is often overlooked when purchasing a Peristaltic Pump is due to the initial cost being higher than other pumps that can be used for similar applications. However, Peristaltic Pumps have low maintenance costs due to the product being pumped only coming into contact with the hose. Typically, the cost of maintenance for a Peristaltic Pump averages about 8% of the original price of the pump, unlike other pumps on the market where maintenance costs can equal about 50% of the price of the pump.

Typical Applications

Albin's Peristaltic Pumps are ideally suited for low & high pressure transfer, metering and dosing applications of low or high viscous, pasty, pure, neutral, aggressive or abrasive liquids, those containing gases or which tend to froth or those containing solids in the following industries:

  • Food, dairy and beverage: tomato sauce, mash potatoes, gelatine, beer yeast, fish paste, olive oil, wine, egg white & yolk, edible fat, semolina, natural flavouring, cream, milk & yoghurts.
  • Bakeries: water & salt mixtures, natural flavourings, fats, fruit cake dough/mixture (i.e. fruit cake has nuts and fruit pieces that need to stay whole).
  • Paint: water based paint, acrylics, pigments, ink, wall coating.
  • Meat and fish processing
  • Pharmaceutical and cosmetics: chemical dosing, liquid protein, vaccines, serum, plasma, syrups, shampoos.
  • Waste water and water treatment: lime cream, ferric chloride, sodium bisulphate, fluoride, polymers, aqueous ammonia, potassium permanganate, caustic soda, activated carbon, reagent feed, coagulant, flocculants, dispersion, alum, sludge and foams.
  • Chemical and petrochemical: various acids, PVDF latex, alcohol, soap, non-aromatic solvents.
  • Pulp and paper: latex, kaolin, paper waste sludge, various chemical dosing.
  • Ceramics: barbotine, mould filling, filter press feeding. Building fibrous mortar, plaster, light concrete, cement flooring.
  • Surface Treatment: Abrasive waste fluids, acids, alkalis, paints, Electrolytic zinc plating, Copper, Nickel, Tin, Silver and Gold plating, Alcalic zinc, Zinc-iron, Zinc-nickel, Hexavalent Chromium-free plating, Chromates / Passivation, Acid zinc
  • Anaerobic Digestion: Processed Food & General Waste, Feedstock, Digestate, Waste Sludge’s
  • Mineral Processing: sludge with viscosity up to 60 000 cps, clay up to 800g/l, particle size: 30 mm, lead sulphate, pyrite, sabx, cyanide, various acids.
  • Agricultural: manure, fertilizer sugar mills, molasses, liquid sugar and various chemicals.
Industry Fluid Viscosity S.G. Temp. Problem Pump / Symptoms Solution
(cPs) (ºC)
Quarry Clay Suspension 350 – 3000 1.3 Changing Viscosity PC Pump / Dry Running, 10 Stators / Year ALH80, NR, 40 rpm, 12 Bar Max
Paint Latex 4000 1.2 30 Shear Sensitive AODD / Shearing ALH65, NR, 23 rpm, 5 Bar Max
Paint Primary Paint 35000 1.25 Dry Running PC Pump / Dry Running, 6 Stators / Year ALH100, NR, 20 rpm, 2 Bar Max
Paint Titanium Oxide 10000 1.3 Abrasion PC Pump / Loss of Accuracy, 8 Stators / Year ALH65, NR, 40 rpm, 8 Bar Max
Chemical Battery Acid Slurries 1.3 1.2 Ambient Particles & Very Acidic PC Pump / Expensive Rotor due to media ALH50, NR, 63 rpm, 3 Bar Max
Chemical Polish Slurries 50 1.3 S.G. not constant Centrif. Pump / Abrasion & Fluctuation in capacity ALHX40, NR, 40 rpm, 1 Bar Max
Chemical Sulphur Slurries 1.2 30% Solids, Very Abrasive PC Pump / Abrasion, costly operational spares ALH25, NR, 40 rpm, 5 Bar Max
Building Ash Cement 15000 1.3 Abrasion PC Pump / Abrasion & Dry Running ALH100, NR, 30 rpm, 15 Bar Max
Building Cement 20000 1.25 High Pressure PC Pump / Abrasion & Dry Running ALHX40, NR, 40 rpm, 15 Bar Max
Building Plaster Projection 40000 1.4 Dry Running PC Pump / Dry Running ALH40, NBR, 72 rpm, 4 Bar Max
Brewery Diatomaceous Earth 13000 1.3 Ambient Dosing abrasive product accurately & low cost PC Pump / abrasion, costly operational spares ALH40, NR, 10-63 rpm, 6 Bar Max
Brewery Yeast 1200-2500 1.15 5 Varying viscosity AODD / Air Compressor Overload ALH25, NBR, 63 rpm, 10 Bar Max
Brewery Beer Slurries 1120 1.2 20 Pumping abrasive product @ high pressure PC Pump / abrasion, costly operational spares ALHX80, NR, 31 rpm, 11 Bar Max
Sewage Treatment Sewage Sludge 600 1.25 Macerated solids & grit PC Pump / Gland leakages & stator abrasion ALH65, NR, 40 rpm, 3 Bar Max
Sewage Treatment Sewage Foam 100 1.1 Particles up to 2 cm Centrif. Pump / Open impeller was clogging ALH100, NR, 21 rpm, 2 Bar Max
Sewage Treatment Lime Slurries, 15% 500 1.3 Build-up of lime in low velocity areas Electric Diaphragm Pump / 30 diaphragm per year ALH40, NR, 10-63 rpm, 5 Bar Max
Tobacco Glue 3000 1.2 25 Shear Sensitive PC Pump / Gland Leakages / Internal Leakages, damaged product ALH25, NBR, 32 rpm, 6 Bar Max
Food Potato Pulp 25000 1.1 65 High Viscosity, High Temperature Lobe Pump / Dry Running, Expensive Seal ALH60, NR, 27 rpm, 10 Bar Max
Food Olive Oil 1400 1.1 Expensive product & reversible operation AODD / Not reversible, lost product in filling line ALH32, NBR, 52 rpm, 2 Bar Max

Peristaltic Pump working principle

  • A pulsating flow is generated by the pushing action of shoes or rollers on the wall of a rubber hose. Typically, Peristaltic Pumps with a shoe design are for high pressure applications and rollers are used for low pressure applications.
  • The two shoes or rollers are mounted at 180° on a rotating wheel & compress successively a reinforced rubber hose that contains a fluid to be pumped.
  • The compression of the hose by the rotating shoes creates continuous suction at the inlet of the pump and pushes the fluid to the outlet of the pump. After each compression, the hose has been designed to return to its original shape, therefore maintaining the flow and quantity of the fluid.
  • Sealing under the shoe is performed by the compression of a local area of the hose.
  • Frictions between shoes and hose are reduced by using a lubricant which also acts as a coolant.
  • The pumped fluid is in contact only with the interior of the rubber hose, thus permitting the pumping of a wide variety of reactive fluids.
  • No particles are usually trapped between the walls of the inner hose, when the shoe is squeezing the hose, a small wave is created in front of the shoe rejecting the particles.

Hose Options

Selecting the right hose for the application and operating conditions is essential as it is the critical part of the pump. The hose should be able to withstand the following:

  • High pressures
  • Cyclic compression
  • Highly abrasive products
  • Temperature of the fluid being pumped
  • Chemically aggressive products

The hoses are manufactured from multi-layered rubber that are weaved together with synthetic and metallic fibres to support high pressure applications. Tapflo are one of 4 or 5 manufacturers, worldwide, who can make the hose according to this specification.

This design means our hoses typically last approximately 30% longer than other hoses available on the market due to 3 technical reasons:

  1. 1. Higher quality of rubber
  2. 2. Better shimming strategy
  3. 3. Better hose selection strategy

Hoses are available to suite all applications including, FDA approved hoses for Food applications and others suited to high chemical resistance.

Click here for the full list of Peristaltic Pump Options.

Shoe Vs Roller Design

Peristaltic Pumps have been designed with rollers that are used to compress the hose. This design has proven successful in the lower pressure applications (ALP Series), since lubrication is not really necessary between the hose & roller and the radial forces are very low, allowing the rotation.

In the higher-pressure applications, from approximately 3 Bar, the rollers do not rotate anymore and the angle at the point of compression becomes fairly steep which acts negatively on the hose. In this case the shoe design has proven to be more effective, since they act more gently on the hose. The ALH Series is designed for higher pressure applications and is therefore supplied with shoes as standard.

The wave effect produced by the shoes operating ensures that particles are pushed before it and cannot be squeezed between the inside of the hose. This prevents damage to any solids within your product.

To protect the hose, the shoes operate in a bath of lubricant, the lubricant acts as a coolant to reduce the friction between the shoes and the hose. The choice of lubricant depends on the application, different oil types or glycerine-based fluids can be used.

peristaltic hose shoe vs roller design

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