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Two-way emergency supply for distribution networks

Illustration of AVK control valves application

Situation: Two networks must be connected to establish a two-way emergency supply

Two networks each representing a pressure zone must be connected to establish a two-way emergency supply. There is no power supply available at the connection point.

Solution: A control valve is installed at the connection

A control valve is installed at the connection. By default, the control valve is closed. It senses the pressure at both pressure zones. If the pressure in one of the pressure zones drops below a specified setpoint due to supply failure in that pressure zone, the valve opens to supply the pressure zone. Both zones will thus continuously be supplied in case of a failure in any one of the zones. The emergency supply will initiate automatically when the pressure drops in either one of the pressure zones, and the consumers are thereby affected as little as possible.

The need for emergency backup for both distribution networks are solved by connecting the two networks, and thereby avoiding expensive solutions with fixed, electric powered PLC solutions. This solution requires no power.