Products: Grinder Pumps

Grinder Pump 3hp "KG-31/33" High Flow

The KEEN GRINDER PUMP KG-31 & 33 series centrifugal grinder pumps easily handle residential, commercial or industrial sanitary waste, reducing it to fine slurry.
The KG-31 & 33 pump is designed for use in pressure sewer applications or any piping network.

The recessed vortex impeller design of the KG-31 & 33 grinder pump provides trouble free, non-overloading operation over the entire performance curve.

The modular design provides quick and easy serviceability. The hardened stainless steel grinder assembly provides many years of dependable operation.

The KG-31 & 33 series grinder pump features:

• 3 support bearings (upper / lower ball, sleeve)
• Dual mechanical seals (silicon carbide)
• Internal moisture detection
• Class F motor, single & three phase options
  • 208 / 230 volt, 1-phase
  • 208 / 230 / 460 volt, 3-phase

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 17,250 cuts per second.
9. Versatile Flange Connection
   Combination 2.5 “ & 3” horizontal flange. Industry standard ANSI 125# dimensions.
10. Accessories Included
    Anti-vibration rubber mounting feet are included with the pump.

Performance Sheet

Specification Sheet