Description
• The Armstrong Pump Astro 2 225SSU is a variable three-speed, single phase stainless steel circulator pump for residential heating and cooling with a 1-1/4" union connection.
• Astro 2 pumps have a flow rate of up to 64 GPM, a maximum of 42 feet of head, ceramic bearings and shaft, and a Noryl impeller.
• An e-coating on the inside of cast-iron volutes provides enhanced corrosion protection for improved reliability.
• A high-flow check valve is pre-installed for convenience. However, when installation does not call for a check valve, it can be removed in seconds. Connection Type: Union
• Connection Size: 1-1/4"
• Flanges are not included
• Motor Speed: 3
• Motor RPM: Variable
• Working Pressure 150 psi
• Max Temp: 110 C