How to Select a Peristaltic Pump

What is a Peristaltic Pump?

Peristaltic Pumps, also known as Hose Pumps, are a type of Positive Displacement Pump that uses a hose to transfer the fluid, meaning no other part of the pump is in contact with the media. They are highly versatile with both high and low-pressure options and the ability to self-prime up to 9m.

Advantages of Peristaltic Pumps:

Centrifugal Pumps are highly versatile and can be easily modified to suit your requirements. Some of the key features of Centrifugal are:

• To reduce risk of contamination, the hose is the only part of the pump in contact with the fluid being pumped
• Our hoses are made from durable materials lasting 30% longer than others on the market
• Reversible flow
• Low and high-pressure options up to 15 Bar
• Capable of handling aggressive and abrasive fluids, as well as those containing gases and solids
• Sealless design
• Self-priming options available
• ATEX available for explosive fluids or environments
• Easy installation and maintenance
• CIP & SIP executions available

Common industries & applications :

Peristaltic Pumps can be used for a wide range of applications,  specifically those containing solids as the hose maintains shape, protecting the media within the pump.

• Wastewater Treatment
• Anaerobic Digestion
• Mineral Processing
• Agricultural
• Surface Conditioning
• Chemical manufacturing
• Food & Beverage
• Pharmaceutical
• Cosmetics
• Heavy-duty industrial applications
• Paint & print
• Pulp and paper
• Ceramics
• Mechanical

What are your fluid & media transfer characteristics?

To choose the appropriate Peristaltic Pump for your application, ask yourself the following questions:

1. What media will be pumped? Consider the chemical composition of the media you will be pumping – is it chemically neutral or corrosive, shear sensitive etc.
2. What is the viscosity of the media you intend to pump? Consider viscosity limitations, shear sensitivity etc.
3. Do you need to pump fluids containing solids?
4. Is your environment or fluid explosive?
5. Do you require self-priming?
6. Do you require CIP/SIP?
7. What type of hose do you require?

Hose Materials Available:

• NR – Natural Rubber, our most flexible hose, offering high abrasion resistance
• NR Food – Natural Rubber for the food and beverage industry with FDA approval
• NBR – Nitrile Buna, ideal for oils, greases, and polymers
• NBR Food – Nitrile Buna for the food and beverage industry with FDA approval
• EPDM – high chemical resistance
• Hypalon/Synthetic Rubber – Chlorosulfonated Polyethylene – high chemical resistance to fluids such as sodium, hypochlorite, chromic, nitric, sulfuric acids
• Viton/FKM – high chemical & temperature resistance to solvents, lubricants, petrol and fuels

Some of our materials offer an ATEX option on request for explosive applications and environments. 

Maintenance required to keep your Peristaltic Pumps running:

Regular maintenance is crucial to keeping your pump performing at its best and ensuring a long life span. Peristaltic Pumps are simple to look after, the key maintenance is down to taking care of the hose.

• Regularly check for wear and tear on the hose
• Ensure proper tension of the hose, it must be fitted correctly
• Lubricate the shoes and bearings as needed

Depending on the size of your pump and the fluid you are pumping, a more detailed maintenance schedule may be required.

Additional Factors to Consider:

Will your pump be stationary, or do you need it to be portable? If you require portability, Peristaltic Pumps can be fitted to trolleys of any size to suit your needs.

Will you require additional accessories for your pump? Pulsation dampeners to reduce pulsation and vibration within your piping system, and assemblies and fittings for your hoses are available for Peristaltic Pumps.