Centrifugal Pumps CAT 4K Series

Centrifugal Pumps CAT 4K Series are made from high-quality materials for durability and long-lasting performance. They come with powerful electric motors that operate quietly with low noise levels. They have overheat protection that automatically turns off the pump when the motor overheats.


Centrifugal Pumps CAT 4K Series


  • 304SSL liquid-end construction offers corrosion resistance and increases operating life over typical cast iron models
  • Unique bulge formed components eliminates harsh radius and welds and provides greater efficiency and durability
  • Back pullout design permits easy repair of impeller and seal
  • High quality mechanical shaft seal and o-rings for a variety of standard, high temperature or chemical duty applications
  • Under casing foot mount and centerline discharge reduces misalignment and assures self-venting
  • Convenient ANSI 150# mounting flanges for secure, easy installation
  • Close coupled, motorized packages for compact and easy installation
  • Pump can be mounted horizontal (most common) or in a vertical position. See special note under General Safety and Operation


MODEL 4K Series
Flow Range Up to 380 gpm
Pressure Range (up to 124 PSI) 286 ft.Head
Minimum Inlet Pressure to Prime Flooded
RPM 1725 or 3450 rpm
Inlet Fitting ANSI 150 lb. – 2″, 2-1/2″, 3″
Discharge Fitting ANSI 150 lb. – 1-1/4″, 1-1/2″, 2″
Shaft Seal Mech Type 21
Horsepower 1, 1-1/2, 2, 3, 5, 7-1/2, 10, 15 HP
Maximum Temperature 160 °F


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