Grundfos Pump Type SQ
The Grundfos Type SQ multistage submersible pump is small and compact designed for domestic applications and well operation. The SQ pump motor is a permanent magnet motor with a micro frequency converter guaranteeing optimum efficiency at constant speed. Equipped with a frequency converter feature that acts as a soft-starter, thereby reducing the starting current and providing smooth and stable acceleration.
The SQ pump is easy to hold and use as it is lightweight and has a diameter of 3 inches. Installation of the SQ pump is easy and a motor protector is included in the frequency converter. Only requires an ON/OFF switch.
FEATURE
Excellent starting ability
Soft-start minimizes the risk of wear on the pump and prevents overloading of the mains during start-up. The soft-star system also reduces water hammer, short circuit and other electrical disturbances.
Protection against over and under voltage
Protection integrated in the pump prevents damage to the motor caused by unstable mains voltage beyond normal limits. The converter inside the pump allows the pump to continue operating at a voltage of 150-315 V.
Overload protection
SQ does not require additional protection. If the pump is exposed to a heavy load, the motor will automatically reduce its speed, or if the pump is blocked the pump will automatically stop pumping.
Overheating protection
As an extra protection, the electronic unit has been equipped with a temperature sensor. When the temperature exceeds the critical limit, the pump stops but when the temperature returns to normal, the pump starts again.
Suitable for :
Deep wells, reservoirs, fountains.