www.pmmag.com/articles/84337-fluid-lubricated-circulator
Fluid-Lubricated Circulator
July 5, 2001
Armstrong Fluid-Lubricated Circulator
The Astro Series by Armstrong is a hydronic circulator designed to conserve energy and is intended for circulating water or ethylene glycol solutions in closed hydronic or solar heating systems. It has no seals or couplers to replace and no lubrication is required.
The Astro Series by Armstrong is a hydronic circulator designed to conserve energy and is intended for circulating water or ethylene glycol solutions in closed hydronic or solar heating systems. It has no seals or couplers to replace and no lubrication is required.
Circle 20
