Peristaltic pumps are popular for their pollution-free design and low maintenance needs. Yet, many people overlook a key component: the peristaltic pump hose. In reality, the hose’s quality greatly impacts pumping work. Let’s explore the factors that affect peristaltic pump hose performance.
First, corrosion resistance
When moving different fluids, the hose must have strong chemical properties—what we call chemical compatibility. This includes low adsorption, good temperature resistance, slow aging, resistance to swelling, and corrosion resistance.
Notably, chemical corrosion resistance drops as temperature rises. Chemicals that don’t affect the hose at room temperature may cause damage as heat increases.
Next, pressure
Peristaltic hoses have a pressure limit. Exceeding this limit makes the hose expand, leading to excessive wear or rupture. The hose’s material, diameter, and wall thickness all influence its pressure tolerance.
Then, temperature
You must consider the hose’s working temperature range, as its material determines how well it resists heat.
Size is another factor
A hose’s size directly affects flow rate: the inner diameter sets the flow rate, while the wall thickness impacts rebound ability and lifespan.
Certifications matter too
Hoses need certifications for specific uses, such as USP, EP, FDA, USDA, and NSF.
Finally, flexibility, elasticity, and service life
A hose’s “flexible life” refers to its lifespan in the pump system. For consistent pump performance in a specific application, choose a thick-walled hose. Pair it with a high-flow pump running at lower speeds to extend the hose’s life.