Water system Grundfos JP 4-47 + PM1

The Grundfos JP 4-47 PM1 water booster set includes a Grundfos JP pump and a pressure switch. JP 4-47 PM1 provides the comfort of constant water pressure by starting and stopping automatically according to consumption, controlled by an intelligent pressure switch. The pressure switch starts the pump at 2.2 bar, and the pump runs as long as there is flow.

The robust construction and corrosion-resistant materials ensure a long service life. The water booster set offers optimal self-priming capabilities, with a suction lift of up to 8 meters. The self-priming pump also ensures stable operation, as it can lift liquid from below the inlet level and can handle a mixture of air and liquid until the air is fully vented.

JP 4-47 PM1 includes dry-run protection, which automatically stops the pump in the event of dry running. This reduces the risk of pump damage and lowers maintenance costs. A frequent start protection feature stops the pump if there is a small leak in the system or a faucet is not properly closed. In the event of frequent starts, the pump stops and an alarm is triggered. An integrated non-return valve prevents backflow.

The JP pump has an internal thermal protection that immediately stops the pump if it overheats. The motor is air-cooled and runs on oversized, sealed, permanently lubricated ball bearings to ensure quiet operation and minimal maintenance requirements.