The Armstrong Astro 250 is a hydronic circulator that conserves energy and eliminates maintenance. Armstrong's Astro Circulator is intended for circulating water or ethylene glycol solutions in closed hydronic or solar heating systems. It is designed with no mechanical seals or couplers to replace, and no lubrication is required.
**Flanges must be purchased separately
Features
Benefits
| Max Flow (GPM): | 18 |
| Flow Range (GPM): | 0-18 |
| Max Head (Ft): | 24 |
| Head Range (ft.): | 0-24 |
| Phase: | 1 |
| Voltage: | 115v |
| Hertz: | 60 |
| Material: | Cast Iron |
| Max Fluid Temp: | 230°F |
| Horse Power: | 1/20 |
| Connection Type: | Flanged |
| Type: | 3-Speed Pump |