March 2018

In recent years Caprari has developed a range of electric borehole pumps produced with special materials, suitable for use in heavy-duty conditions with aggressive, sandy, marine waters: the ENDURANCE series. This range has now expanded to include a new 8” full AISI 316 stainless steel model.

The Endurance series are made using a precision stainless steel casting technique. Caprari performs ongoing research is on the creation of eco-friendly products that both protect the environment and optimise energy efficiency during operation.

Endurance Series, Electric Borehole Pumps by Caprari

Precision casting technology makes it possible to produce very thick components with the absence of welds resulting in continuous hydraulic profiles without friction or turbulence. This means Caprari pumps have greater durability and reliability when compared to welded and moulded steel sheet solutions.

All components are made of AISI 316 stainless steel, which guarantees high corrosion resistance (40,000 parts per million of T.D.S.), while the shaft and the joint are made of duplex.

The Endurance electric borehole pumps are designed to withstand galvanic corrosion thanks to the exclusive DEFENDER® system, a passivation device designed and patented by Caprari that protects the pump from the first moments after installation.

Endurance pumps are suitable for applications with solid content up to 150 g/m3. They feature bearings with anti-recirculation lip protected against the introduction of sand.

The special PROTECTOR® device, installed in NEMA couplings between wet-end and motor, perfectly seals the area, protecting the coupling and preserving the motor mechanical seal against solids.

With the addition of the new full 316 Stainless Steel Endurance Range, Caprari remains focused on the needs of customers, for whom Caprari does not only represent a mere supplier, but a reliable and attentive partner.