ESPA PRESSDRIVE NP pressure switch

ESPA PRESSDRIVE NP is an advanced flow-control unit designed for automatic pump operation in domestic and professional water supply systems. The device integrates pressure control, flow monitoring, fault protection and constant-pressure maintenance — all without requiring a pressure tank (hydro accumulator).

Purpose and key functions

PRESSDRIVE NP automatically starts the pump when water is being drawn and stops it when the flow ceases. The pressure and flow sensors continuously monitor system conditions, preventing the pump from running without water (“dry run”) and protecting it from excessive suction height or operation with a closed valve.

Structural design

▪️Monolithic flow-through body with integrated sensors.
▪️Built-in pressure and flow sensors, check valve, pressure gauge and water-hammer absorber.
▪️Electronic control board with diagnostic LED indicators.
▪️Inlet and outlet ports positioned at 90° for easy installation.
▪️Quick-release inlet connection and standard threaded outlet.

Advantages of PRESSDRIVE NP

▪️Complete automation functionality in a single device.
▪️LED indication for all operating modes and protection states.
▪️Intelligent restart algorithm (4 automatic attempts).
▪️Stable pressure during continuous water consumption — no fluctuations.
▪️Integrated water-hammer damper increases pump service life.
▪️Built-in pressure gauge for easy monitoring and diagnostics.
▪️Dry-run protection and prevention of dangerous operating conditions.
▪️Installation possible on the pump or anywhere on the discharge line.
▪️Adjustable pump start pressure: 1.5–2.5 bar.

ESPA PRESSDRIVE NP is a reliable, all-in-one solution for household water supply, irrigation systems and domestic pumping stations, ensuring stable pressure, complete protection and long equipment lifespan.