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
• Cast iron pump body construction
• Ceramic shaft and bearings
• Cross-reference information is printed on the box, for convenient access
• e-Coating on the inside of cast-iron volutes provides enhanced corrosion protection for improved reliability
• Flange-to-flange and bolt-to-bolt compatibility offers quick and easy exchange of competing models
• Plug-in terminal strip saves time
• High-flow check valve, is pre-installed for convenience. Where the installation does not call for a check valve, it can be removed in seconds
• Maximum flow: 18 GPM
• Maximum head: 18.2 ft
• Flanges are sold separately.
• Connection Size: 1", 1-1/2", 1-1/4", 3/4"
• Connection Type: Flanged, Flanges are not Included
• Motor Speed: 3
• Motor Enclosure: ODP