In 2020, Scot Pump discontinued the production of the 231 Series centrifugal pump due to Department of Energy requirements. The direct replacement for the 231 Series pump is the 331 Series. This reengineered pump boasts a more efficient impeller to ensure that it meets DOE requirements. The footprint of the pump is the same. The repair kits do not interchange between 231/331 pumps.
Motorpump 231/331
Motor Frame: J56
Motor Options: ODP, TEFC, Explosion-Proof
Motor RPM: 3500 or 1750
Inlet/Outlet: 1-1/4" x 1" FPT
Seal: Type 21 Mechanical Seal
HP Options: 1/2 - 5
Max. Flow: 75 GPM
Max. PSI: 60
Metallurgy: 304SS
Impeller Type: Enclosed, PPS GF Material
* For Water Weight Liquids Only