Self-priming with helical PEEK gears.Pressure, current and voltage constant control.Automatic stop when running out of liquid.Nickel-plated brass body, stainless steel shaft, FKM seals.The engine progressively increases its revolutions to reach the required flow and ensure long working cycles, lower noisiness and consumption optimization.The pump is fitted with circuit breaker and overvoltage protection device.A protection system engages after 90 seconds of dry running.