K4R Series Non-clog Pumps

Non-Clog 4" Discharge "K4R"

• RECESSED IMPELLER
• Handles stringy and fibrous materials
• Passes larger solids
• Pumps heavier solids concentrations
• Ideal for grit and abrasive solids
• Pumping via vortex action
• Solids do not pass through impeller
• Virtually impossible to clog

STRONG PERFORMANCE
• Ideal for higher heads, lower flows
• Operate to shut-off head without damage
• Non-overloading performance curve

LONG SERVICE LIFE
• Dual silicon carbide shaft seals
• Low motor operation temperatures
• Continuously lubricated bearings
• Premium 3 bearing construction
• Epoxy potted cord entry

LOW MAINTENANCE
• No wear components
• Recessed impeller out of passageway
• Grit-resistant silicon carbide shaft seals

Capabilities:
• Flows . . . . . . . . . . . . . . . . . . . . . . .to 600 GPM
• Heads . . . . . . . . . . . . . . . . . . . . . . to 92 Feet
• HP Range . . . . . . . . . . . . . . . . . . .3, 5, & 7.5 HP
• Voltage Options . . . . . . . . . . . . . .200 / 230 / 460 volt, 1 or 3 phase
• Discharge Connections . . . . . . .4" ANSI 150 lb Horizontal Flange
• Motor Speed . . . . . . . . . . . . . . . . . 3450 rpm
• Solids Handling . . . . . . . . . . . . . . 3"
• Impeller . . . . . . . . . . . . . . . . . . . . . Recessed, Vortex
• Minimum 1.15 Motor Service Factor

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. 3" Solids Handing
   Clear, unobstructed passageway provides reliable movement of solids.
9. Standard Flange Connection
   4", 125# ANSI flange, horizontal discharge.

Performance Sheet

Specification Sheet