New range of drainage pumps by Calpeda available

Calpeda has released a new type of drainage pump, ideal for dirty water with short-fibre solids.

Completion of GQ drainage pump family

The new GQN 50 range is part of the GQ family of drainage pumps. In particular alongside the GQS 50 and GQV 50 models which, being equipped with a free-flow or vortex impeller, are instead suitable for dirty water with long-fibre solids.

Two-channel impeller allows high performance

The two-channel impeller of the GQN 50 pump allows the passage of solids up to a diameter of 50 mm. This in connection with the strict production regulations of the GQ pump family makes the new range a very interesting technical development for the drainage pump sector.

The downside of a single-channel impeller, like that of the GMC 50, is that it needs a very strong structure to support vibrations. Thanks to the optimal balance guaranteed by the two-channel impeller, the GQN models instead have a slim structure, so they are also economically more advantageous.

Further advantages of the GQ drainage pumps

The other strong points are the same as those of the GQ drainage pumps:

• double mechanical seal on the shaft with oil chamber in between, for safe motor-water separation and to stop the pump from running dry accidentally;

• dry winding with triple impregnation for better resistance to humidity;

• air valve that allows the air to exit around the impeller, and which guarantees safe pump priming even after long periods of inactivity;

• air valve that allows the air to exit around the impeller, and which guarantees safe pump priming even after long periods of inactivity;

• motor, available both single phase and three-phase, equipped with a built-in capacitor that can be inspected, with thermal protection and built-in float switch.

Installation in small wells possible

Since the G2ISO 228 delivery port of the new GQN range faces upwards, the models can be installed in small wells without requiring a pump bend for the pump.

The GQN pumps have a flow rate of 800 liters/minute and are available with a head of 16 metres.

For more information, please visit: https://www.calpeda.com