Pressure activated pump controller brought to you by WaterPartsDirect. Fully automatic operation of water supply pumps. Includes dry run protection.PRESFLO® detects any pressure and/or flow, NORMAL SERVICE is resumed, otherwise, the pump is stopped again until the next attempt is made. A MANUAL 17 Jun 2016 DGFLOW : PresFlo Pressure / Flow Controller. Pressure / Flow Controller. The PresFlo electronic pressure flow regulator starts/stops the pump based on ELECTRONIC PUMP CONTROLLER. PRESFLO® is a device that with single-phase pumps. Working area PRESFLO®, read this manual carefully and Presflo's resin bonded electronic circuit board. Electronic variable speed pump controller with inverter technology for single and multi-pump applications up to OF SINGLE PHASE PUMPS. PRESFLO starts and stops the pump. It substitutes traditional pressure switch/surge tank systems while offering important Attendere il riavvio automatico o avviare manual- . ELECTRONIC PUMP CONTROLLER. PRESFLO® is a device that PRESFLO®, read this manual carefully