- Stainless steel rotor assembly
- Cast Iron Housing
- 120 Volt, 60Hz
- Includes flange gaskets
- Pumps will accept flange sizes 3/4", 1", 1-1/4" & 1-1/2"
- Replaces Bell & Gossett, Taco flanges, Grundfos
- 50-3 has been replaced with 250CI.
Face to Face Dimension = 6-3/8". Astros are available with self-lubricated bearing, vent plug for initial purging, and dynamically balanced stainless steel rotor assembly. No need for mechanical seal; no coupler alignment failure. Pumps will accept flange sizes 3/4", 1", 1-1/4" & 1-1/2". Same flange to flange dimension as competitive small circulators. All Astros: 120 Volt/60Hz. 50-3 has been replaced with 250CI (new & improved). Note: Picture is 30-3, looks identical to 50-3
