HI-NNF-PJ-50/75(40)

Introduction

HI-NNF-PJ-50/75(40) is a series of models of high-quality, reliable self-priming centrifugal pumps. They are ideal for applications with varying operating flows and are especially suitable for on-demand applications with large variations in system flow.The series is designed for many different applications, from pumping sewage and sludge, to transferring liquids such as water and fuel.

Application Field

The HI-NNF-PJ-50/75(40) models are intended for applications such as:

• Pumping sewage and slurries
• Draining pools, lakes and ponds
• Refueling diesel engines
• Irrigation, rainwater harvesting and firefighting
• Circulating and transfer of liquids

These pumps are extensively used in remote areas where there is no access to mains electricity and a prime source of hydraulic power. The self-priming mechanism and motorized lift system allows the pumps to be started from any point of the installation, making them an ideal choice in difficult conditions with limited space.

Working Principle

The HI-NNF-PJ-50/75(40) pumps are based on centrifugal technology. The centrifugal pump uses an impeller to create pressure and suction. The impeller is spun rapidly within the pump chamber, leading to acceleration of the liquid inside. The impeller is attached to a shaft, which is driven by a motor. As the motor rotates, the liquid is propelled at a high speed from the center of the impeller in a radial direction. The pressure generated by the impeller increases as the velocity of the liquid increases, allowing it to be pumped over long distances.

The pump has the ability to start up without the need for a priming operation, as the self-priming mechanism is able to draw the liquid up into the pump chamber. This is achieved by running the pump with the priming chamber full of air. The pressure generated by the impeller forces the air out of the priming chamber, allowing the liquid to be drawn up. This process is repeated several times until the priming chamber is full of liquid and the pump is ready to go into operation.

Conclusion

The HI-NNF-PJ-50/75(40) series of single-stage centrifugal pumps are designed for many different applications. Their self-priming mechanism and motorized lift system allow them to be used in remote areas where there is no access to mains infrastructure. The pumps are designed with an impeller that rotates rapidly, allowing it to create pressure and suction and propel liquid over long distances.