DAB.EVOSTA2 SOL - electronic circulation pumps for solar
The DAB.EVOSTA2 SOL series includes electronic circulation pumps specifically designed for solar thermal systems. These pumps use permanent magnet synchronous motors and integrated frequency converters to adapt output to system demand. They are suitable for closed-loop solar heating systems where precise flow control and energy efficiency are required.
Each model features a cast iron body with a cataphoresis coating and a stainless steel shell, ensuring durability in variable temperature environments. The pumps operate within a liquid temperature range of -10 °C to +110 °C and can handle up to 10 bar of working pressure. They are compatible with clean, chemically neutral liquids similar to water, with a maximum glycol content of 50%.
How to choose
- Match the pump’s flow rate (0 to 4 m³/h) and head (up to 14.5 m) to the system’s hydraulic requirements.
- Select the appropriate connection size (e.g., 1/2") and thread type based on the piping layout.
- Ensure compatibility with the system’s control method, including optional external PWM signal control via a 1.5 m cable.
Frequently asked questions
Can these pumps handle glycol-based fluids?
Yes, the DAB.EVOSTA2 SOL models are suitable for liquids with up to 50% glycol content, provided they remain chemically neutral and viscosity-free.
What is the maximum operating temperature?
The pumps can operate with liquid temperatures up to 110 °C, and up to 130 °C if the ambient temperature is 60 °C or below.
