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PUMPING SYSTEMS
Series "Roma"
Pumping Systems
Pumping systems for district heating networks consisting of 2 to 6 pumps in parallel. The system comes as "package", complete with shut-off valves, control and safety devices as well as with electric control board for regulation through inverter and is ready for remote control and integration with supervision systems through existing free and unified protocols. The integration between the control system and inverter is essential to optimize the system in both economic and functional terms. In fact, the management logic, along with the flow measurement assistance, always allow the use of pumps in best efficiency spots. The sequence of operation and exchange of the pumps is automated and controlled through the measurement of ΔP on central conduit, possibly compensated with end of network ΔP values or network's most underprivileged spots ΔP values as well.
- Flow Rate: 50 to 1000 m3 / h
- Head: 10 to about 120 w.c.m.
- District Heating max Temperature: 150 ° C.
- Max pressure: 25 barg."ds
Range
Mod. Roma
Hot/Overheated water District Heating Pumping Groups.
| POS. | Model |
Nominal Flow Rate (m³/h) |
Nominal Head (bar) |
Pumps on service |
stand-by pumps |
Per pump installed electric power(kW) |
Hydraulic Design (barg) |
Design Temp (°C) |
|---|---|---|---|---|---|---|---|---|
| 94 | Roma 50 | 50 | 3/6 | 1 | 1 | 7,5/15 | PN10 / PN16 / PN25 | 120/135/150 |
| 95 | Roma 75 | 75 | 3/6 | 1 | 1 | 11/22 | PN10 / PN16 / PN25 | 120/135/150 |
| 96 | Roma 100 | 100 | 3/6 | 1 | 1 | 11/30 | PN10 / PN16 / PN25 | 120/135/150 |
| 97 | Roma 150 | 150 | 3/6/9 | 1 | 1 | 15/37/55 | PN10 / PN16 / PN25 | 120/135/150 |
| 98 | Roma 250 | 250 | 3/6/9 | 1 | 1 | 30/55/90 | PN10 / PN16 / PN25 | 120/135/150 |
| 99 | Roma 500 | 500 | 3/6/9 | 2 | 1 | 30/55/90 | PN10 / PN16 / PN25 | 120/135/150 |
| 100 | Roma 750 | 750 | 3/6/9 | 3 | 1 | 30/55/90 | PN10 / PN16 / PN25 | 120/135/150 |
| 101 | Roma 1000 | 1000 | 3/6/9 | 4 | 1 | 30/55/90 | PN10 / PN16 / PN25 | 120/135/150 |
Working condition
| HOT WATER | SUPERHEATED WATER | COOLING | |
|---|---|---|---|
|
THERMAL DESIGN DISCTRICT HEATING CIRCUIT |
90/65°C | 115/65°C | 7/11°C |
|
MECHANICAL DESIGN DISCTRICT HEATING CIRCUIT |
PN16÷PN25 | PN16÷PN25 | PN16÷PN25 |
|
THERMAL DESIGN SUBSTATIONS SECONDARY CIRCUIT |
85/55°C | 85/55°C | 14/8°C |
|
NOMINAL PRESSURE LOSS SUBSTATIONS PRIMARY AND SECONDARY CIRCUITS |
10/3 w.c.m. | 10/3 w.c.m. | 10/3 w.c.m. |
|
FLUID SPEED DISCTRICT HEATING CIRCUIT |
0,5÷2 m/s | 0,5÷2 m/s | 0,5÷2 m/s |
| CENTRAL CONDUIT PUMPS HEAD | 0,5÷9 bar | 0,5÷9 bar | 0,5÷9 bar |
| PRESSURE LOSS POWER PLANT INNER CIRCUIT | 0,5÷1,5 bar | 0,5÷1,5 bar | 0,5÷1,5 bar |
Gallery
