Description

Applications
Residential heating or cooling, potable water, water conservation.

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.

Materials
Cast iron, lead-free bronze, or stainless steel volutes

Performance Range
0 to 64 USgpm 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

Additional information

Technical Data

• • Astro 2 Series Technical Data

Parts

• Circulator Flange and Hardware Kits

Performance Data