Peripheral Pumps for High-Pressure, Low-Flow Applications
Peripheral pumps are a specialised type of close-coupled centrifugal pump with a unique impeller design. These pumps feature an impeller with numerous radial vanes positioned along the outer edge, rotating within a concentric casing channel. As the impeller spins, liquid flows between the vanes and the casing, resulting in a significant increase in pressure within the pump. This design makes peripheral pumps ideal for high-pressure, low-flow applications, where consistent performance under pressure is crucial.
Key advantages of peripheral pumps include their self-priming capability, with designs that can self-prime up to 6 metres or provide a high manometric suction lift when a foot valve is used. These pumps are particularly effective in handling fluids with entrained gas or vapour bubbles, thanks to their ability to operate with very low Net Positive Suction Head (NPSH) requirements. This characteristic reduces the risk of cavitation and ensures smoother operation. Additionally, the balanced impeller design minimises axial thrust, extending the lifespan of the pump.
These features make peripheral pumps a reliable choice for applications requiring high-pressure performance, such as water supply, industrial processes, and HVAC systems. Their ability to efficiently handle entrained fluids and operate with low NPSH also makes them suitable for chemical handling and other specialised industrial applications, offering consistent and durable fluid handling even in challenging conditions.
View our Peripheral Pump Guide