Armstrong, a global supplier of fluid equipment for civil, commercial and industrial applications, announces the availability of a bronze and cast iron circulating pump for the new Astro 20F and BF flanged fittings. Coupled with the new Astro 20F and BF, all Astro Series Circulating Pumps now have common double screw-mount flange adapters. This connector makes it easy to install, remove and replace the circulation pump. The Astro 20F is especially suitable for low volume, low head hydraulic applications such as radiator mounted jet pumps. The pump is mainly used in domestic hot water recycling. Astro Series Circulating Pump Other Features: New, unthreaded terminal plate provides balanced operation of the elastic clamp each wire of the cable. This makes it easier to connect the power in the junction box. A smaller new terminal box, small footprint, can be installed in a small space. A bronze or cast iron material circulating pump. Compatible with Armstrong's CIF Series Circulating Pump Isolation Flanges.