Pedrollo Presflo Vario Automatic Control Device
Presflo Vario is an electronic device designed to control and protect single-phase domestic pumps with a power ca- pacity of up to 2 HP. It is ideal for water supply and pressure boosting in residential settings, as well as for small-scale irrigation applications.
Product Description
- Presflo Vario features a pressure sensor and a flow sensor linked to an electronic system that automatically activates the pump when a faucet's opening lowers the pressure below a specified level and deactivates it when the flow stops or dips under 2 l/min.
- Adjustable restart pressure ranging from 0.8 bar to 2.4 bar.
- Presflo Vario is also equipped with:
– Pressure Gauge
– Integrated micro-accumulation enables operation even without an expansion tank, though the use of a 1SF tank is recommended;
The integrated electronics protect the pump from:
- dry running
- frequent start-ups due to leaks in the system
Performanace Range
- Maximum volume capacity: 170 l/min (10 m3/h)
- Restart pressure: adjustable (factory setting 1.5 bar)
Appplication Limits
- Liquid temperature up to +40 °C
- Ambient temperature up to +40 °C
- Maximum operating pressure 10 bar
- Protection rating: IP 65
Performance And Safety Standards
The electronic circuit board inside the PRESFLO VARIO has passed the most rigorous EMC tests for electromagnetic compatibility.
Available Upom Request
Version with power cable with Schuko plug and pump connection cable.
Wetted Components| Pump Body | Cast Iron (Painted) |
| Impellor Case | Cast Iron (Painted) |
| Impellor Case Seal | NBR |
| Motor Shaft Seal | NBR |
| Vanes | Not Present |
| Vane Springs | Not Present |
| Rotor / Gear / Impellor | Brass |
| Shaft Key / Nut | 304 Stainless Steel |
| Motor Shaft | 304 Stainless Steel |
| Bypass Valve Piston | Not Present |
| Bypass Valve Seal | Not Present |
| Bypass Valve Spring | Not Present |
Performance| Voltage / Frequency | 110v, 230v, 415v / 50Hz |
| kW | 0.37-2.2 |
| Amps | |
| RPM | 2900 |
| Duty Cycle | Continuous |
| Cable Length | Not Present |
| Bypass Valve Y/N | N |
| Max Flow | 40 lpm @ 5 m head |
| Discharge Pressure | 9.0 Bar / 130.5 PSI |
| Max Suction Lift (Dry) | None |
| Max Suction Lift (Wet) | 8 m |
| Inlet Fitting | Various, Consult PDF Below |
| Outlet Fitting | Various, Consult PDF Below |
| Max Particle Tolerance | 100 Micron |
| Max Liquid Temp | 90 Celcius |
| Min Liquid Temp | |
| Max Room Temp | 40 Celcius |
| Min Room Temp | |
| Thermal Protection Y/N | Y |
| Max Liquid Viscosity | Water |
| Ingress Protection | IP44 |
For 110v 50Hz, and 60Hz motors please email us for availability and price.
Download Pedrollo Catalogue 50Hz PDF
Download Pedrollo Catalogue 60Hz PDF
