1. DGFLOW srl www.dgflow.it Italy
Via Emilia, 5 - Loc. Stradella Bigarello - Mantova -
Italy

2. Products: 1. ON-OFF systems a. PRESFLO b. PRESFLO multi basic
c. PRESFLO multi
d. PRESET
e. PRESFLO multi cos phi
2. Variable speed drive
a. STEADYPRESS
All electronic boards have been immerged in a resin to prevent condensation

3. PRESFLO Advantages : Start/stop buttom on the cover
With or without pressure gauge
Different types in function of pump power
Start up pressure : 0,8 – 1,5 – 2,2 bar
Dry running protection
protection against excessive frequent starting
Max power : up to 2 Hp (1,5kW) 16 Amp.
IP 65
Max operating pressure : 10 bar
NO need to use an additional expansion vessel
Installation : any kind
Real non return valve incorporated
Continous duty with flow higher than 2l/min

4. PRESFLO multi basic Advantages : Start /stop buttom on the cover
Without pressure gauge
With expansion vessel 3 liter
With digital pressure sensor
Selectable start up pressure with jumper
from : bar
Dry running protection
protection against excessive frequent starting
Max power : up to 1 Hp (0,75kW) 8 Amp.
IP 65
Max operating pressure : 10 bar
NO need to use an additional expansion
vessel
Installation : any kind
Real non return valve incorporated
Continous duty with flow higher than 2l/min

5. PRESFLO multi Advantages : Start/stop buttom on the cover
Digital display
With expansion vessel 3 liter
With digital pressure sensor
Protection against over current (settable)
Selectable start up pressure with push
bottom in steps of 0,5 bar from : 1 till 5 bar
Dry running protection
Protection against excessive frequent starting
Max power : up to 1,5 Hp (1kW) 16 Amp.
IP 65
Max operating pressure : 10 bar
NO need to use an additional expansion
vessel
Installation : any kind
Real non return valve incorporated
Continous duty with flow higher than 2l/min

6. PRESET Advantages : Start/stop buttom on the cover Digital display
Electronic pressure sensor
Dry running protection
Protection against over current (settable)
Starting pressure adjustable from 1 till 9 bar
Cut out pressure adjustable from 1 till 9 bar
Max power : 2 Hp (1,5kW) 16 Amp.
IP 65
Max operating pressure : 10 bar
Need to use an additional expansion vessel
Installation : any kind
Real non return valve incorporated
Continous duty with flow higher than 2l/min

7. PRESFLO multi cosfi Advantages : Start/stop buttom on the cover
Digital display
With expansion vessel 3 liter
With digital pressure sensor
Protection against over current (settable)
Selectable start up pressure with push
bottom in steps of 0,5 bar from : 1 till 5 bar
Double Dry running protection
Protection against excessive frequent starting
Max power : up to 1,5 Hp (1kW) 16 Amp.
IP 65
Max operating pressure : 10 bar
NO need to use an additional expansion
vessel
Installation : any kind
Real non return valve incorporated
Continous duty with flow higher than 2l/min

8. 1. Pressure(p)= CONSTANT
STEADYPRESS
WHY ?
1. Pressure(p)= CONSTANT
2. Flow (Q) = VARIABLE
3. Speed (Rpm) = VARIABLE

9. STEADYPRESS Advantages : Start/stop buttom on the bottom
Digital display
With digital pressure sensor
Protection against over current (settable)
Selectable start up pressure with push
bottom in steps of 0,5 bar from : 1 till 9 bar
Dry running protection
Protection against excessive frequent starting
Max power : up to 3 Hp (2,2kW)
IP 65
Max operating pressure : 10 bar
Need to use an expansion vessel
Installation : any kind
Real non return valve incorporated
Continous duty with flow higher than 2l/min

10. STEADYPRESS
PRESSURE LOSSES :

11. STEADYPRESS
TYPES :

12. STEADYPRESS
COOLING PLATE
Real NON-RETURN VALVE & FLOW SENSOR

13. STEADYPRESS Hydraulic caracteristics :
Maximum working pressure : 10 Bar
Maximum testing pressure: 40 bar
Digital pressure sensor : Bar
Flow sensor
Flow : up to 200 l/min
Water temperature : up to 50 °C

14. Power supply variations : +10%
STEADYPRESS
PROTECTIONS :
Power supply variations : +10%
Dry running
Fase dectection
Overcurrent
Lighting
Anti Frost
Unlock

15. STEADYPRESS Extra electronic board for connecting more inverters:
especially for boostersets
Connection for :
Boosterset up to 3 pumps
Float switch
or minimum pressure switch or 2de setpoint
Alarm

16. STEADYPRESS

17. STEADYPRESS
View from the side
View from the top

18. STEADYPRESS

19. STEADYPRESS

20. STEADYPRESS