The Grundfos SP is a 4-inch multi-stage, submersible pump designed for operation in boreholes. The SP is made entirely of corrosion-resistant stainless steel, offering high operating reliability regardless of the application. The SP range offers high efficiency along with great resistance to sand and other abrasive particles.
- Long life - Grundfos SP pumps are made from 100% high-grade corrosion resistant stainless steel inside and out, to ensure a long life (DIN 1.4301 - AISI 304). Higher grades are available if aggressive liquids are present (AISI316 and AISI904).
- Optimised hydraulics - For better performance and fewer breakdowns.
- Sand flushed out - Octagonal bearings and sand flush channels remove particles with the pumped water ensuring less abrasive wear.
- Built-in non-return valve - All SP pumps are delivered with a non-return valve to minimise the risk of water hammering damage.