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tubra®-PGS
Solar thermal energy
The pump groups for solar systems – also with integrated regulation
- compact modular design
- completely pre-assembled for connection to the solar circuit
- PWM-controlled high-efficiency pumps:
Wilo Para ST
Grundfos UPM3 Solar - Volume flow display
PGS multi: 1 – 13 l/min
PGS XL: 5 – 35 l/min - incl. insulation according to GEG
Two gravity brakes, safety devices, a wall mounting and complete insulation are already integrated in the tubra®-PGS multi solar station.
Optionally, the stations tubra®-PGS C multi are available with pre-assembled and pre-wired control. Shut-offs upstream and downstream of the pump allow replacement without draining the system. Dial thermometers and gravity brakes are mounted in the operating handles and in the ball valves, respectively. By operating the taps, the gravity brakes can be opened manually.
The 1 – 13 l/min version is available as a flow meter.
For safe degassing of the system, a large-volume air collector (tubra®-air-jet) is integrated, which can be emptied manually via the manual air vent. The necessary equipment such as pressure gauge, safety valve and the connection for the expansion vessel are integrated in the return due to the low thermal load.
The pump group can be mounted on the wall but also directly on the tank with optional accessories.
All stations are equipped with high-efficiency pumps.
optional functions:
- reheat function
tubra®-
eTherm P
| Typ | tubra®-PGS 01 | tubra®-PGS multi | tubra®-PGS XL |
|---|---|---|---|
| Nominal size | DN 20 | DN 20 | DN 25 |
| Nominal capacity | 13 kW | 13 kW | 58 kW |
| max. collector surface, flate plate, low flow (18 l/m2h ) | 43 m² | 43 m² | 116 m² |
| max. collector surface, flate plate, high flow (30 l/m2h ) | 26 m² | 26 m² | 70 m² |
| Dimensions H x W x D | 405 x 200 x 180 mm | 405 x 330 x 180 mm | 470 x 380 x 215 mm |
| Centre distance | - | 125 mm | 125 mm |
| max. working pressure | 6 bar / 10 bar | 6 bar / 10 bar | 6 bar / 10 bar |
| max. working temperature flow / return | - / 120°C | 140 / 120°C | 140 / 120°C |
| Connections | G 3/4 IG | G 3/4 IG | G1 IG |
| Gravity brakes | 40 mbar | 2 x 20 mbar | 2 x 20 mbar |
| Flowmeter | 1-13 l/min | 1-13 l/min | 5 - 35 l/min |
| Length of pump cable for solar stations without electronic control | 2,5 m | 2,5 m | 2,5 m |
tubra® accessory selection
Solar stations/transfer stations from tuxhorn are designed for solar loading of buffer storage tanks.
