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New pressure controller automatically regulates water distribution networks

Posted: Friday 22nd August 2014

Pegasus+ offers multi-point PRV control without flowmeter.

Water and asset monitoring specialist HWM has launched a new electronic controller for pressure reducing valves (PRVs). Pegasus+ enables detailed multi-point PRV control without a flowmeter, either by flow or by time, together with sophisticated closed loop control.

The controller permits immediate control of pressure within a distribution network, and automatically adapts to network changes and events by analysing data from up to three critical points (CPs). By controlling PRV output pressure, Pegasus+ maintains CP targets defined in terms of time, flow or a combination of the two. Networks can be optimised to reflect changing demand throughout the day or week.

In extreme or emergency situations, a latching solenoid output enables valves to be fully opened or closed according to controller settings. Bidirectional GPRS telemetry can be used to trigger alarms or remotely control the valve.

In addition to its main logging channel, Pegasus+ features a secondary channel for fast logging down to one-second intervals. This allows for a more detailed investigation of events such as pressure spikes and helps to establish actual minimum night flow.

Pegasus+ offers the ability to control a network from any web-enabled device. Via the HWM Online web viewer, users can check and alter system and component configurations and settings. A tablet or PC-based app facilitates controller set-up and programming.

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