Peristaltic Pump Hose Components
Peristaltic pump hoses are designed to withstand abrasive and corrosive materials.
Hose material
Peristaltic pump hoses are generally made from a variety of materials such as natural rubber, silicone or thermoplastic elastomers. The choice of material depends on the specific application and the properties required for the fluid being pumped.
Reinforcement layers
Hoses are often reinforced with layers of fabric, wire or both to improve their strength and resistance to pressure and abrasion, ensuring durability and longevity.
Wall thickness
The thickness of the hose wall plays an important role in determining its resistance to wear and its ability to withstand the pressure exerted by the pumping system.
End fittings
The fittings at the ends of the hoses are designed to securely connect the hose to the pump and other system components, ensuring an efficient, leak-free fluid transfer process.
Materials
Natural Rubber: The Basic Material for Peristaltic Hoses
- Exceptional abrasion resistance
Ideal for highly abrasive slurries and inorganic products - Good chemical compatibility
Suitable for water-based products, weak acids, glycols and ketones - Wide temperature range
Can be used from -20°C to +80°C - Flexibility and elasticity
Easy to install and use
These properties make natural rubber the preferred choice for many industrial applications requiring strong, durable hoses.
Other Rubber Compounds for Specific Needs
A wide range of rubber compounds to meet different needs are also available:
- EPDM: Suitable for hot water and steam applications
- NBR: Ideal for oil and fuel transfer
- NBR-PVC: Versatile compound for general applications
- CR: Resistant to ozone, weathering and ageing
- NR: Commonly used for abrasive materials
- NBR FDA and EPDM FDA: FDA-approved compounds for food and beverage applications
Factors Influencing the Service Life of Hoses
Material Properties
The type of material from which a hose is made has a significant impact on its durability and longevity. Factors such as tensile strength, flexibility and resistance to abrasion and corrosion are key elements in determining the lifespan of a hose.
Temperature & Pressure
Extreme temperatures and high pressure can cause the hose material to degrade over time, leading to cracks, leaks and, ultimately, failure. Correct selection of hoses designed to withstand specific temperature and pressure ranges is essential to avoid premature failure.
Radius of Curvature
The minimum bending radius of a hose is the minimum radius at which the hose can be bent without causing damage. Exceeding the bending radius can lead to kinks and weakening of the hose structure, reducing its service life.
Chemical Exposure
Exposure to aggressive chemicals can deteriorate the hose material, resulting in a loss of structural integrity and functionality. Choosing hoses that are resistant to specific chemicals is important to extending their service life and maintaining safety in fluid transport systems.
SPS Pumps is there to Help
SPS Pumps has a reputation for engineering excellence in industrial pumps, particularly peristaltic pumps. We combine technical expertise with support, ensuring you get reliable and efficient systems tailored to your needs.
SPS Pumps offers a wide range of spare parts for all makes of peristaltic pumps, in stock, helping you to keep your pumps running smoothly and minimise downtime.
SPS Pumps is your trusted partner for long-term success and reliability.
Call us on +32 2 657 23 53 or send us an email to info@sps-pumps.com.
