Solar pump station 5-40 l/p high-performance 2-circuit circulating pump unit for thermally insulated solar collector system

Pump

Pump: Stratos Para 25/1-9 PWM
up to 50 m² for collector fields
Maximum operating temperature of flow line: 160 °C
Maximum operating temperature of the return line: 110 °C
Maximum operating temperature of the safety valve: 160 °C< br />Maximum operating pressure of the safety valve: 6 bar
Temperature range thermometer: 0-120 °C
Flow rate display: 5-40 l/min
High efficiency pump with pre-assembled cable
Applicability to any with solar control
Scale pressure measurement range: 0-10 bar
Distance between pipes: 125 mm
Connections: 1 1/4" external thread
Connection to expansion tank: 3/4"
Insulated housing made of polypropylene (EPP)
< span style="color: #000000;">Electrical connection:
The three-wire 230 V cable It is connected to a 230 V power supply (this can also be the connection in the solar regulator):
- Brown cable --> L (phase)
- Blue cable --> N (neutral)
- Yellow-green cable --> PE (grounding)

The three-wire PWM cable connects to the signal connection of the solar controller:

• Brown cable --> +
• Blue cable --> -
• Black cable --> Feedback (not always necessary)

Solar pump station

The solar collector station is equipped with the Wilo Stratos Para 25/1-9 PWM high-efficiency pump, which is particularly economical and complies with the strict requirements of the European Union Directive 2009/125/EC energy efficiency requirements. The pump cables are pre-assembled, i.e. they are delivered ready for connection, they can be installed directly. 

The solar collector station has two lines, so not only the forward flow runs through it, but also the return, which increases the possibilities of control and monitoring. Special materials ensure that some elements of the solar collector station can withstand high temperatures. For example, the forward pipe can withstand temperatures up to 160 °C, while the return pipe can withstand temperatures up to 110 °C. The built-in safety valve is calibrated up to a pressure of 6 bar and can withstand an operating temperature of up to 160 °C. In order not to lose valuable heat, the entire block is covered with polypropylene (EPP).
The double-circuit solar station is designed for 50 m² collector groups and can be adapted to any control system.