Grundfos SP A

The Grundfos SP A is a 4-inch multi-stage, submersible pump designed for operation in boreholes. SP A is made entirely of corrosion-resistant stainless steel, offering high operating reliability regardless of the application.

The SP A offers high efficiency along with great resistance to sand and other abrasive particles.

Features

100% high-grade stainless steel inside and outside
As standard, all Grundfos SP A pumps are made entirely of stainless steel DIN 1.4301 (AISI 304). Where particularly aggressive liquids are encountered, the SP pumps are available in extra high grade stainless steel DIN 1.4401 (AISI 316), or, for severe conditions, DIN 1.4539 (AISI 904 L) providing maximum reliability.

Bearings with sand channels
All bearings are water-lubricated and have a squared shape, enabling sand particles, if any, to leave the pump together with the pumped liquid.

Inlet strainer
The pump is mounted with an inlet strainer preventing particles over a certain size from entering the pump.

Non-return valve
SP A pumps have a built-in non-return valve preventing backflow in connection with pump stoppage.

Motor burnout protection
Protecting the motor against high motor temperatures is the simplest and cheapest way of avoiding a reduced motor life. The SP A motor is available with built-in temperature sensor and when used with the MP204 will monitor and protect against overheating.

Optional monitoring and controlling
A complete monitoring and control system is available for constant optimisation of the pumping system.