Become a Distributor

Interested in starting a lucrative business relationship distributing Keen Pumps? It's quick and easy. Sign up today!

Let's Get Started!

Products: Grinder Pumps

Grinder Pump 2hp "KFG2-21/23" High Flow





The KEEN GRINDER PUMP KFG2-21 & 23 series centrifugal grinder pumps easily handle residential, light commercial or industrial sanitary waste, reducing it to fine slurry. The KFG2-21 & 23 pump is designed for use in pressure sewer applications or any piping network.

The KFG2-21 & 23 grinder pump retrofits into many existing competitor pump installations. The KFG2-21 & 23 grinder pump operates with the same control panel and installation piping / rail system.

The recessed vortex impeller design of the KFG2-21 & 23 grinder pump provides trouble free, non-overloading operation over the entire performance curve. The KFG2-21 & 23 pump produces capacities to 90 gpm with heads to 70 feet.

The KFG2-21 & 23 series grinder pump features:

  • Interchangeable into competitor installations
  • Dual mechanical seals ( silicon carbide)
  • Class F motor, internal overload protection
  • 3 Bearing shaft support
  • Internal moisture detection
  • Strong, 2 HP motor
    • 208 / 230 volt, 1-phase
    • 208 / 230 / 460 volt

Features and Benefits

  1. Triple Sealed Cable Entrance
    Stainless steel strain relief cord grip with compression grommet protects outer cord jacket. Epoxy filled inner cord cap with individually soldered wires provide anti-wicking moisture protection to the motor even if power cable is cut or damaged.
  2. Modular Pump Design
    Commonality of parts across the Keen product line minimizes the amount of parts required for servicing. Heavy duty ASTM A48, Class 30 cast iron components.
  3. Strong Motor
    Powerful high torque motor for reliable pump operation.
    208 / 230 volt, 1-phase
    208 / 230 / 460 volt, 3-phase
    Pressed stator securely holds motor and efficiently transfers heat. Class F insulation with overload protection in oil filled chamber for cool operation and long motor life.
  4. 3- Bearing Support
    Motor / Pump shaft securely held with upper and lower ball bearing plus addition sleeve bearing in lower seal chamber. Long 50,000 hour B-10 bearing life.
  5. Double Mechanical Seal Protection
    Dual silicon carbide mechanical shaft seals provide twice the moisture protection for the motor. Dual seals are housed in a secondary oil filled seal chamber. Tougher silicon carbide seals better handles sand, grit and abrasive materials.
  6. Moisture Detection
    Seal leak probe signals alarm in control panel for scheduled maintenance.
  7. Non-Overloading Hydraulic Design
    The recessed centrifugal impeller allows 100% performance curve operation from shut-off to maximum flow without damage to the pump or system. The recessed vortex impeller is out of the passageway of fluid flow, eliminating concerns of blockage or wear.
  8. Proven Grinder Assembly
    Hardened (Rockwell 56-60) stainless steel grinder assembly has 30+ years proven field experience. The reversible grinder ring and grinder impeller effectively reduces solids into a fine slurry, easily passable in a piping system without concerns of clogging. Highly efficient 16,600 cuts per second.
  9. Easy Piping Connection
    Removable 1-1/4” NPT connection flange for simple and easy connection to discharge piping.
  10. Accessories Included
    Stainless steel lifting handle and anti-vibration rubber mounting feet are included with the pump.


Performance Sheet

Specifications Sheet

« Back to Products

Request More Information

Have a question regarding a specific kind of pump? Looking for more detailed specs? Whatever your need may be, don’t hesitate to ask! 

Keen Pump Co. • 471 E. State Route 250 East • Ashland, Ohio 44805 • Fax - 419-207-8031 • Phone - 419-207-9400