 |
 |
 |
tubra®-ÜSTA S/M
Solar thermal energy
The solar transfer station for stratified loading
- compact modular design
- with PWM-controlled high-efficiency pumps
- maximum solar collector area 50 m²
- including pre-programmed systems on SD card
Memory Loading
ÜSTA
combination of tubra®-ÜSTA and ÜSTA stratification loading set
- ÜSTA stratification loading set:
for buffer tank, assembly with 2x DN 25
3-way switching valves as double switching incl. insulation
| Typ | tubra®-ÜSTA-S | tubra®-ÜSTA-M |
|---|---|---|
| Nominal size | DN 20 | DN 20 |
| Nominal capacity (18 l/m2h), max 7K log Diff. prim. 60-34 °C sec. 27-53 °C | 10 kW | 25 kW |
| max. collector surface / cascaded (flate plate) | 20 m² | 50 m² |
| Solar pump (primary side) | Para 15/7 iPWM2 | Para 15/8 iPWM2 |
| Buffer load pump (secondary side) | Para 15/7 iPWM2 | Para 15/7 iPWM2 |
| Dimensions H x W x D | 575 x 400 x 275 mm | 575 x 400 x 275 mm |
| max. working pressure (primary) | 6 bar | 6 bar |
| max. working pressure (secondary) | 3 bar | 3 bar |
| max. working temperature primary flow / return | 140 / 120 °C | 140 / 120 °C |
| max. working temperature secondary | 110 °C | 110 °C |
| Connections (primary) | G 3/4 IG | G 3/4 IG |
| Connections (secondary) | G1 ext., flat sealing | G1 ext., flat sealing |
| Gravity brakes | 20 mbar | 20 mbar |
tubra® accessory selection
Product portfolio Solar thermal energy
Solar stations/transfer stations from tuxhorn are designed for solar loading of buffer storage tanks.
