Description
The Armstrong Astro 2 circulators are designed for quiet operation and zero maintenance. In combination with cast iron volutes the Astro 2 line is intended to circulate water or ethylene-glycol solutions in closed hydronic or solar heating systems. The Astro 2 line is available in three volute materials for residential, small industrial, and commercial applications.
Applications: Residential heating or cooling, potable water, water conservation.
Materials: Cast iron
Performance range: 0 to 64 US gpm flow; 0 to 42 ft head
Temperature: Max ambient temp 40°C; max fluid temp 110°C
Power Range: 33 W to 218 W
Size: ½” – ¾” sweat, 1¼” union, or standard 2 bolt flange
