Application: for use in drinking water sector (other on request)
DN: 1 1/2" - 2" PN16
DN200 - DN300 PN10
DN40 - DN300 PN16
The pump protection valve opens with a time delay after the pump is started up. Consequently the network pressure increases to the full pump pressure before the valve opens. With a controlled stopping of the pump, the valve closes before the pump stops. The opening and closing speeds can be set on the throttle non–return valve. In the event of a power failure, the fitted mechanical non–return flap prevents the valve from closing too quickly and consequently a backflow to the pump.
- To use in drinking water systems (other media after consultation)
- Actuation of the valve with the pump control system
- Protection of the pump against overloading caused by a no–load operation