Sewage Pumps
KW
Submersible, Single-Vane Impeller
•
•
•
•
•
•
•
•
Performance Curve
100
Total Head (FT)
Up to 2” Solids-Handling
Heavy-Duty, Silicon Carbide Seals
Stainless Steel “Keyed” Shaft
Flows to 325 GPM / Heads to 95 Feet
1 HP - 3 HP, 3450 RPM
Single or Three Phase Operation
2” or 3” NPT Discharge
Optional Piggyback Float
80
60
40
20
0
50
100
150
200
Capacity (GPM)
250
300
350
KW Features and Benefits
1. Watertight Cable Entrance
Watertight strain relief with compression grommet protects outer
cord jacket. Cable wires individually stranded in epoxy in cord cap
assembly provides anti-wicking moisture protection to the motor
even if power cable is cut or damaged.
1
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.
Pressed stator securely holds motor and efficiently transfers heat.
Class F construction with overload protection in oil-filled chamber
for cool operation and long motor life.
2
4. Bearing Support
Motor / Pump shaft securely held with upper and lower ball
bearing 50,000 hour B-10 life.
4
3
5. Severe Duty Dual Mechanical Seals
5
Dual shaft seals provide twice the moisture and grit protection for
the motor. Inboard seal silicon-carbide with outboard lip seal.
Tougher silicon carbide seals better handle sand, grit and abrasive
materials.
6. High Efficiency Hydraulic Design
Highly efficient, single-vane impeller easily passes 2” dia. solids
without blockage. Strong ductile iron design features backside
pump-out vanes, keeping lower seal clean and pressurecompensated for longer life. Dynamically-balanced for smooth,
quiet operation and long bearing life.
7. 2” Solids-Handling
Clear, unobstructed passageway provides reliable movement of
solids.
8. Vertical Discharge Connection
2“ NPT vertical discharge. Volute included with support legs.
OPTIONAL 3” NPT Reducer.
6
7
8
471E State Route 250 East . Ashland, Ohio 44805
419.207.9400 fax 419.207.8031
www.keenpump.com
SUBMERSIBLE SEWAGE PUMP
KW
GENERAL
Pump Model
PUMP DATA
MOTOR DATA
03/28/2014
Date
HP / Power Supply
2” or 3” NPT, Vertical
Discharge Flange
Impeller Type / Std. Dia.
1, 1.5 or 2HP / 1 Phase / 60 Hz
Insulation / Class
Single-Vane
F / Class
Poles / Rated Speed
2 P / 3450 rpm
Full Load Amps
See Chart Below
Single Phase
PERFORMANCE CURVE
Head / [Ft]
100
90
80
70
60
50
KW20
40
KW15
30
KW1
- 2 HP
- 1-1/
2 HP
0-1
20
HP
10
0
50
100
150
200
300
250
350
Capacity [USGPM]
HP
Volts
Phase
KW10M2-21
KW15M2-21
1
1-1/2
208/230
208/230
1
1
FLA
Amps
13.0 / 11.9
14.0 / 12.8
KW20M2-21
2
208/230
1
14.4 / 13.1
Model
* Performance with clear water and ambient temp 20ºC (68ºF)
Rev. 0
SUBMERSIBLE SEWAGE PUMP
KW
GENERAL
Pump Model
PUMP DATA
MOTOR DATA
03/28/2014
Date
HP / Power Supply
2” or 3” NPT, Vertical
Discharge Flange
Impeller Type / Std. Dia.
1, 1.5, 2 or 3HP / 3 Phase / 60 Hz
Insulation / Class
Single-Vane
F / Class
Poles / Rated Speed
2 P / 3450 rpm
Full Load Amps
See Chart Below
Three Phase
PERFORMANCE CURVE
Head / [Ft]
100
90
80
70
KW
30
60
50
-3
KW20
40
KW15
30
KW1
HP
- 2 HP
- 1-1/
2 HP
0-1
20
HP
10
0
50
100
150
200
250
300
350
Capacity [USGPM]
FLA
Amps
7.0 / 6.4
3.2
HP
Volts
Phase
KW10M2-23
KW10M2-43
KW15M2-23
1
1
1-1/2
208/230
460
208/230
3
3
3
KW15M2-43
KW20M2-23
KW20M2-43
1-1/2
2
2
460
208/230
460
3
3
3
3.5
8.5 / 7.7
3.9
KW30M2-23
KW30M2-43
3
3
208/230
460
3
3
10.4 / 9.0
4.5
Model
* Performance with clear water and ambient temp 20ºC (68ºF)
7.7 / 7.0
Rev. 0
KEEN PUMP CO.
471E ST ROUTE 250 EAST
ASHLAND, OHIO 44805
TITLE
SCALE
DWG. BY
PHONE: 419-207-9400
FAX: 419-207-8031
KW 2-POLE SINGLE-VANE SEWAGE PUMP
DWG. #
NTS
SE
DATE
03/28/2014
REV.
KN-888
KW Specifications
Pump Model – Pump shall be of the submersible centrifugal type, ____ HP KEEN KW Series. The pump shall
easily pass 2” diameter solids through the pump end without jamming and exit through the 3“ NPT / 2” reducer
bushing discharge.
Operating Conditions – The pump shall have a capacity of _______ GPM at a total head of _________
feet, and shall use a motor rated at ____ HP and 3450 RPM.
Pump Impeller – Ductile iron, dynamically balanced and keyed on a stainless steel shaft. The impeller shall
be of the single-vane type.
Pump Housing Construction – All components of the pump construction (cord cap, motor housing,
seal plate, volute) shall be cast iron, ASTM A-48, Class 30. There shall not be any composite materials used for
any pump components.
Seals – Motor shall be protected by dual mechanical seals. Type 21, seal construction mounted in tandem, shall
protect the motor. Both seals shall be silicon / carbide. The seal face shall be lapped to a flatness of one light band.
All hardware shall be stainless steel. The elastomer materials shall be nitrile.
Motor – The pump motor shall be of the submersible type, rated ____ HP, 3450 RPM. The motor shall be for 60
Hz, either 208 or 230 volt, single phase operation. Three-phase operation shall be 208, 230 or 460 volt. Single
phase motors shall be of the permanent split capacitor design with an internal start capacitor for high starting
torque. Motor operating temperature must not exceed Class B ratings.
The stator winding shall be of the open type with Class F insulation. Winding housing shall be filled with a clean,
high dielectric oil that lubricates bearings and seals, transferring heat from windings and rotor to the outer cast
housing. Air-filled motors which do not have the superior heat dissipating capabilities of oil-filled motors shall not
be considered equal.
The motor shall have two heavy duty ball bearings to support the pump shaft, taking radial and thrust loadings. Ball
bearings shall be designed for a minimum 50,000 hours B-10 life. The stator shall be pressed into the motor
housing. The pump shaft shall be of 416 SST, keyed to accept the pump impeller.
The motor shall be capable of operating over the full range of the performance curve without overloading. Single
phase motors shall have a heat sensor thermostat and overload attached to the top end of the motor windings to
stop the motor if the motor winding temperature reaches 200 degrees F. The high temperature shut-off will cause
the pump to cease operation, should a control failure cause the pump to run in a dry wet well. The thermostat shall
automatically reset when the motor cools to a safe operating temperature. Three-phase motors contain
temperature sensors with (2) two wires for attachment to the control box.
Power Cord – The motor power cord shall be 14 AWG SOW, 20’ length. The cable jacket shall be sealed at
the motor entrance by means of a rubber compression washer with concentric ribbing. A stainless steel
compression fitting shall securely hold the cable jacket and compression grommet in place.
471E State Route 250 East . Ashland, Ohio 44805
419.207.9400 fax 419.207.8031
www.keenpump.com