Pedrollo 6SR18 / 11-PD submersible apple

For uninterrupted water supply from very deep wells, where high head, significant flow volume, and maximum reliability are critically important, choose the Pedrollo 6SR18/11-PD submersible pump. This powerful multi-stage centrifugal electric pump is designed for continuous submerged operation and demonstrates the highest efficiency and exceptional durability. It is ideally suited for the most demanding applications in industry, large-scale agriculture, and municipal systems for water supply, large-scale irrigation systems, and high-pressure fire safety systems.

Operating Principle and Design Solutions

The pumps of the 6SR18 series, which include the Pedrollo 6SR18/11-PD, operate on the principle of multi-stage centrifugal pumps. Impellers, located on a single drive shaft, rotate inside guide vane diffusers. This mechanism ensures sequential fluid movement: upon exiting each impeller, the fluid is directed to the suction port of the next. As it passes through all consecutively installed impellers, the fluid gradually builds up pressure, which accumulates at each stage, creating a powerful and stable head at the pump outlet. The motor connects to the pump via a bracket whose parameters comply with NEMA standards, guaranteeing a strong and reliable connection capable of withstanding high loads. The casing made of durable galvanized steel provides high corrosion resistance and a long service life.

Installation Conditions and Area of Application

The Pedrollo 6SR18/11-PD pump is designed for operation in wells with a minimum diameter of 6 inches (152 mm) and is capable of efficiently pumping clean water with a sand content of no more than 100 g/m³. This feature makes it ideal for use in systems requiring water supply with minimal impurities. For safe and efficient operation, the electric pump must be lowered into the well to a depth where it is fully submerged in water (at least 50 cm from the surface), even if its level drops during operation. It is also important to maintain a distance of at least 1 meter from the bottom of the well to prevent the intake of bottom sediments. As a precautionary measure and to ensure reliable fixation of the pump in the well, it is highly recommended to use a strong stainless steel or nylon rope, secured through the specially provided holes in the discharge casing. The maximum temperature of the pumped water is +35ºC.

The Pedrollo 6SR18/11-PD is a high-tech and extremely reliable piece of equipment, designed to provide uninterrupted and efficient water supply for the most demanding and critical facilities, all with low energy consumption.