Wet-rotor circulator

Wilo USA announced its new EC Motor-Driven, High-Efficiency, Wet-Rotor Circulator, Wilo-Star E 21. The new circulator pump for the residential and commercial HVAC market is designed to improve performance and save energy consumption at the same time. The fluid temperature range for the new Wilo-Star E 21 is 36°F to 230°F, with a maximum operating pressure of 145 PSI (10 Bar). Designed in a cast iron HT 200 pump body, it incorporates an advanced composite PA66+30%GF impeller and ceramic shaft. An optional check valve is also provided for parallel pumping applications.