Submersible Pumps SQ

SQ pumps are designed for pumping thin, clean, non-aggressive, and non-explosive liquids that do not contain mechanical or fibrous impurities. Grundfos SQ series pumps are made from stainless steel AISI 304, which is suitable for contact with drinking water.

The pump includes a 1m long cable.

Applications

Pumps are suitable for continuous operation and are ideal for a wide range of operational applications

• Household water supply
• Use in small waterworks
• Irrigation
• Filling and draining tanks
• Pressure boosting

Example of Use - SQ with Pressure Switch and Pressure Tank

The SQ pump is ideal for ensuring water supply in the private sector, especially in single-family homes and cottages not connected to the public water supply. 

Dry Run Protection

The pumps are protected against dry running. In the event of insufficient water in the well, the pump automatically shuts off to prevent overheating and damage to the motor winding. However, this function serves only as an emergency measure. In the case of low well yield, the pump should be supplemented with external level monitoring.

High Efficiency of Pump and Motor

The electrohydraulic design ensures high efficiency for this pump, which in turn results in low electricity consumption and therefore low operating costs. The motors are designed according to the permanent magnet principle (PM motor). This is the latest type of synchronous electric motor, characterized by high efficiency and reliability across a wide performance range. The same type of motors is used, for example, in electric vehicles. Reliability and efficiency are also supported by auxiliary elements such as:

• Tungsten carbide or technical ceramic bearings
• Axial bearings as protection against upward axial pressure
• Longevity comparable to conventional motors

Advantages of Grundfos SQ Pumps

• Protection against thrust
• Smooth pump start
• Overvoltage and undervoltage protection
• Overheating protection
• Emergency dry run protection