The S2 two-pipe solar pump station is fully assembled and tested. Models with regulators are wired from the inside, with el. plug.
The pump station contains:
- Wilo ST 25/6 180 – 6/4“ circulation pump
- Manometer, 2 thermometers on the supply and return line
- 6 bar safety solar valve
- Filling and emptying valves
- Shut-off valve, solar non-return valve
- Air separator
- Flow meter with flow control
- Expansion vessel connection outlet
Thermal insulation in two parts. Special rear metal plate for quick and reliable wall or solar tank mounting. PN 10. Max. operating temperature: 120 ° C (for a short time up to 160 ° C, for 20 sec.)
| Type of solar pump station |
Integrated solar regulation |
Circulation pump |
Connection |
| S2 SRS3 |
SRS3 for 2 solar tanks / collector arrays with 3 sensors included | Wilo ST 25/6 2-12 l/min | 3/4″ M |
| S2 SRS4 |
SRS4 for 2 solar tanks / collector arrays with 4 sensors and electronic flow meter included | Wilo ST 25/6 2-40 l/min | 1″ M |
| S2 Solar 3 | Wilo ST 25/6 2-12 l/min | 3/4″ M | |
| S2 Solar 3 |
Wilo ST 25/6 8-28 l/min | 1″ M |
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