SST25 – solar station

The SST25 pump station is a twin-line pump station with or without STRGO controller. The pump station is pre-assembled and contains all the vital hydraulic components for operating a solar thermal system and is particularly easy to install. It can be used with Sonnenkraft tanks DHW, FWSS, etc.

  • Cutting-edge and compact design
  • User-friendly controller with preset solar schemas
  • SST25 is ready to plug in and mount on the FWSS buffer storage tank

Circulation pump: Wilo PARA ST 15/7.0-PWM2 (Maximum power consumption: 45 W)
Safety valve: max. 6 bar
Pressure gauge: 0 … 10 bar
Flowmeter: 1 … 13 l/min
Non-return valves: 2 pc, openable
Connection to diaphragm-type expansion vessel: 3/4” IT, flat sealing
Outlet safety valve: 3/4″ IT
Connections to the solar pipes: 1″ ET
Maximum pressure: max. 6 bar
Fluid: Water with max. 40 % propylene glycol
Dimensions: approx. 570 x 330 x 230 mm (with insulation)
Maximum temperature: +140 °C

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