C41 • C51 • C61 Series Centrifugal Pumps - jvpump.com · Bulletin C October 2005 MTH PUMPS •...
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Bulletin COctober 2005
MTH PUMPS
• Capacities to 100 GPM• Heads to 140 Feet
Centrifugal Pumps
C41 • C51 • C61 Series

Engineering SpecificationsHorizontal Close Coupled
The contractor shall furnish (and in-stall as shown on the plans) an MTH (C41) (C51) (C61) Series horizontal close-coupled centrifugal type pump size_________ (Stainless Fitted Iron) (All Bronze) (316 Stainless Steel) construction. Each pump shall have a capacity of ____GPM when operat-ing at a total head of _______feet. Suction pressure will be ____feet with a liquid temperature of ____°F.
The pump is to be furnished with 5/8” Type 21 mechanical seal with stainless steel metal parts, (Buna) (Viton) elastomers, (ceramic seat and
Centrifugal PumpsMTH C SeriesClose-coupled centrifugal pumps from MTH provide economical perfor-mance for 5 to 100 GPM applications requiring heads from 10 to 140 feet. By combining the latest concepts in pump design with precision manu-facturing, the C Series pumps deliver excellent efficiency and low NPSH requirements. Efficient manufactur-ing processes and highly optimized mechanical designs control costs. Maintenance costs are kept to a mini-mum by combining a highly service-able design with quality components to provide a long service life.
Impeller DesignC Series semi-open impellers allow the pump to pass small solids and fibrous material while close running tolerances maintain high efficiency and performance. Impellers are pre-trimmed to be non-overloading to the pump and motor size indicated.
NPSH RequirementsC Series centrifugal pumps meet low net positive suction head require-ments (NPSHR) without sacrificing efficiency. This is achieved by low fluid inlet velocity and gentle accel-eration to peripheral velocities.
Mechanical Seal BoxThe large seal chamber provides a wide fluid passage area for maximum cooling of the seal faces and allows debris and gases to be flushed away.
Axial Balance SystemThe C Series pumps utilize a thrust balancing system which combines the advantages of both static and dynamic balancing techniques to re-duce axial thrust and provide longer bearing life.
D3 MotorsSimilar to the T31 Series, the C Se-ries takes advantage of our custom manufactured dual face D3 motors that incorporate a 304 stainless steel shaft and heavy-duty bearing. The stainless steel shaft eliminates the necessity of a shaft sleeve, thereby reducing the parts count and simplifying maintenance and servic-ing procedures. All D3 motors also feature a two-pole 50/60Hz rating, as well as CE Mark approval useful for OEM’s with worldwide custom-ers. The three-phase versions of the
C41 • C51 • C61 Series
STANDARD MATERIALS LIMITATIONS
Construction MaterialsC Series pumps are available in stainless fitted iron, all bronze, and cast 316 stainless steel construction. Seal elastomer and “O” ring gaskets of Buna, EPR, and Viton are avail-able. Carbon vs. ceramic seal/seat materials are standard with graphite impregnated silicon carbide as an option.
Optional Features
D3 motors feature a compact TEFC enclosure and a range from 1/3 to 3HP. The single phase D3 motors have an ODP enclosure and a range from 1/3 to 2HP.
Adjustable CasingC Series pump casings are axially adjustable allowing the use of custom impellers for OEM applications and to allow restoration of performance by closing up the internal clearances that develop over the course of a unit’s extended service life.
Inlet StrainerA 90° suction strainer with a replace-able screen is available for installa-tion in the suction line to help prevent foreign materials from entering the pump. A cap at the bottom of the strainer can be easily and quickly removed for screen cleaning or replacement.
carbon washer) (Graphite impregnat-ed silicon carbide seat and washer). A 304 stainless steel shaft shall be furnished in all pumps.
The pump casing shall be vertically split, end suction. (Top Discharge) (90° Discharge) (180° Discharge) (270° Discharge) The impeller shall use dynamic thrust balancing.
The pump shall be close-coupled to an 80mm “C” face ___HP ___phase ___Hertz ___Volt ___RPM horizontal (Open Drip-Proof) (Totally Enclosed) motor with a CE Mark and UL rating.
Discharge Pressure 200 PSISuction Pressure* (Max) 100 PSISuction Pressure (Min) 26” Hg Vac.Speed** (Max.) 5500 RPMTemperatureStandard Construction -20° FCeramic Seal Seat - Water +230° FGraph. Imp. Silicon Carbide Seal Seat & Seal Flush +250° F
HorsepowerD3 - 3Ø 3 HPD3 - 1Ø 2 HP* Suction Pressure Plus 50 Percent of Differential Pressure** With variable frequency drive @ 90Hz
PART STAINLESS FITTED ALL BRONZE STAINLESS STEEL
Motor Bracket Cast IronASTM A48
BronzeASTM B62
Stainless SteelAISI 316
Casing Cast IronASTM A48
BronzeASTM B62
Stainless SteelAISI 316
Impeller Stainless SteelAISI 316
BronzeASTM B62
Stainless SteelAISI 316
Motor Shaft Stainless SteelAISI 304
Stainless SteelAISI 304
Stainless SteelAISI 304
“O” Rings Buna N Buna N Viton ASeals Carbon/Buna Carbon/Buna Carbon/VitonSeats Ceramic/Buna Ceramic/Buna Ceramic/Viton

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60
2
-1
-2
00
4-
80
1D
Dimensions (Three Phase)Discharge
X
D
Y
Suction
AG Approx.AB
Z
DD
DF
Performance Curves (Three Phase)(High service factor TEFC motor HP selections @ 1.0 S.G.) 3450 RPM
C41 • C51 • C61 Series
AC
3 Phase TEFC Motors
Pump Size 71 Frame(1/3HP - 1HP)
80 Frame(1 1/2HP - 2HP)
90 Frame(3HP)
Model Disch. Suction Imp. Ø DD DF X Y Z AB D AG AB D AG AC D AGC41AB 1/2 3/4 4 3 1/4 4 3/16 2 9/16 1 3/16 2 5/16 5 2 13/16 8 13/16 --- --- --- --- --- ---C41BC 3/4 1 4 3 1/4 4 3/8 2 5/8 1 5/16 2 7/16 5 2 13/16 8 13/16 --- --- --- --- --- ---C41CD 1 1 1/4 4 3 1/4 4 9/16 2 3/4 1 1/2 2 9/16 5 2 13/16 8 13/16 --- --- --- --- --- ---C41DE 1 1/4 1 1/2 4 3 7/16 4 13/16 2 15/16 1 3/4 2 11/16 5 2 13/16 8 13/16 --- --- --- --- --- ---C41EF 1 1/2 2 4 3 5/16 5 3/16 2 15/16 2 1/16 2 13/16 5 2 13/16 8 13/16 5 1/8 3 1/8 9 7/16 --- --- ---C51AB 1/2 3/4 5 3 1/2 4 3/8 3 1/16 1 5/16 2 3/4 5 2 13/16 8 13/16 --- --- --- --- --- ---C51BC 3/4 1 5 3 1/2 4 7/16 3 1/16 1 5/16 2 13/16 5 2 13/16 8 13/16 5 1/8 3 1/8 9 7/16 --- --- ---C51CD 1 1 1/4 5 3 5/8 4 9/16 3 3/16 1 1/2 3 5 2 13/16 8 13/16 5 1/8 3 1/8 9 7/16 --- --- ---C51DE 1 1/4 1 1/2 5 3 11/16 4 15/16 3 3/4 1 7/8 3 1/16 --- --- --- 5 1/8 3 1/8 9 7/16 --- --- ---C61AB 1/2 3/4 6 3 15/16 4 5/8 3 7/16 1 1/2 3 5/16 --- --- --- 5 1/8 3 1/8 9 7/16 --- --- ---C61BC 3/4 1 6 3 15/16 4 7/16 3 15/16 1 5/16 3 1/4 --- --- --- 5 1/8 3 1/8 9 7/16 5 7/8 3 9/16 11 5/16C61CD 1 1 1/4 6 3 15/16 5 3/16 4 5/8 2 1/8 3 3/16 --- --- --- --- --- --- 5 7/8 3 9/16 11 5/16All units in inches

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Dimensions (Single Phase)
Performance Curves (Single Phase)
Bulletin C © 2005 MTH Tool Company
C41 • C51 • C61 Series
Discharge
X
D
Y
Suction
AG Approx. Z
DD
DF
3450 RPM(High service factor ODP motor HP selections @ 1.0 S.G.)
Single Phase ODP Motors
Pump Size 48 Frame(1/3 - 1 1/2HP)
56 Frame (2HP)
Model Disch. Suction Imp. Ø DD DF X Y Z D AG(Max.) D AGC41AB 1/2 3/4 4 3 1/4 4 3/16 2 9/16 1 3/16 2 5/16 3 10 1/4 --- ---C41BC 3/4 1 4 3 1/4 4 3/8 2 5/8 1 5/16 2 7/16 3 10 1/4 --- ---C41CD 1 1 1/4 4 3 1/4 4 9/16 2 3/4 1 1/2 2 9/16 3 10 13/16 --- ---C41DE 1 1/4 1 1/2 4 3 7/16 4 13/16 2 15/16 1 3/4 2 11/16 3 10 13/16 --- ---C41EF 1 1/2 2 4 3 5/16 5 3/16 2 15/16 2 1/16 2 13/16 3 11 5/16 --- ---C51AB 1/2 3/4 5 3 1/2 4 3/8 3 1/16 1 5/16 2 3/4 3 10 13/16 --- ---C51BC 3/4 1 5 3 1/2 4 7/16 3 1/16 1 5/16 2 13/16 3 11 5/16 --- ---C51CD 1 1 1/4 5 3 5/8 4 9/16 3 3/16 1 1/2 3 3 11 5/16 3 1/2 10 15/16C51DE 1 1/4 1 1/2 5 3 11/16 4 15/16 3 3/4 1 7/8 3 1/16 3 11 5/16 3 1/2 10 15/16C61AB 1/2 3/4 6 3 15/16 4 5/8 3 7/16 1 1/2 3 5/16 3 11 5/16 --- ---C61BC 3/4 1 6 3 15/16 4 7/16 3 15/16 1 5/16 3 1/4 3 11 5/16 3 1/2 10 15/16 All units in inches

Composite Curve (Three Phase)C41 • C51 • C61 SERIES
5A - C51AB-1/2HP5B - C51AB-3/4HP5C - C51AB-1HP5D - C51BC-1HP5E - C51BC-1 1/2HP5F - C51CD-1HP5G - C51CD-1 1/2HP5H - C51CD-2HP5I - C51DE-1 1/2HP5J - C51DE-2HP
4A - C41AB-1/3HP4B - C41AB-1/2HP4C - C41BC-1/3HP4D - C41BC-1/2HP4E - C41CD-1/3HP4F - C41CD-1/2HP4G - C41CD-3/4HP4H - C41DE-1/2HP4I - C41DE-3/4HP4J - C41DE-1HP4K - C41EF-3/4HP4L - C41EF-1HP4M - C41EF-1 1/2HP
6A - C61AB-1 1/2HP6B - C61BC-1 1/2HP6C - C61BC-2HP6D - C61BC-3HP6E - C61CD-3HP
C41 • C51 • C61 SERIES (60 Hz TEFC Service Factor Motor Horsepower Selections*)
* Horsepower data is valid for 1.0 specific gravity fluids only (3 Phase)
3450 RPM

Performance Curves (Three Phase)C41 • C51 • C61 SERIES
2880 RPM
3450 RPM
*Amp and HP data valid for 1.0 specific gravity fluids only (3 Phase)
U.S. GALLONS PER MINUTE0 5 10 15 20 25 30
HE
AD
IN F
EE
T
0
10
20
30
40
50
60
AM
PS
* @
230
VO
LTS
1.00
1.25
1.50
1.75
2.00
2.25
2.50
Head-Capacity
Amps*
C41AB - 1/3HP (1/2 X 3/4 X 4)
C41AB - 1/3HP (1/2 X 3/4 X 4)
Section C Page 427Dated Jan 2004
U.S. GALLONS PER MINUTE0 5 10 15 20 25 30
HE
AD
IN F
EE
T
0
10
20
30
40
50
60
AM
PS
* @
208
VO
LTS
0.75
1.00
1.25
1.50
1.75
2.00
2.25
Head-Capacity
Amps*

C41 • C51 • C61 SERIES
Performance Curves(Three Phase)
3450 RPM
2880 RPM
*Amp and HP data valid for 1.0 specific gravity fluids only (3 Phase)
U.S. GALLONS PER MINUTE0 5 10 15 20 25 30 35 40
HE
AD
IN F
EE
T
0
10
20
30
40
50
60
70
AM
PS
* @
208
VO
LTS
1.00
1.25
1.50
1.75
2.00
2.25
2.50
2.75
Head-Capacity
Amps*
C41AB - 1/2HP (1/2 X 3/4 X 4)
C41AB - 1/2HP (1/2 X 3/4 X 4)
Section C Page 428Dated Jan 2004
GALLONS PER MINUTE0 5 10 15 20 25 30 35 40
HE
AD IN
FEE
T
0
10
20
30
40
50
60
70
AM
PS
* @
230
VO
LTS
1.25
1.50
1.75
2.00
2.25
2.50
2.75
3.00Head-Capacity
Amps*

Performance Curves (Three Phase)C41 • C51 • C61 SERIES
2880 RPM
3450 RPM
*Amp and HP data valid for 1.0 specific gravity fluids only (3 Phase)
C41BC - 1/3HP (3/4 X 1 X 4)
C41BC - 1/3HP (3/4 X 1 X 4)
Section C Page 429Dated Jan 2004
U.S. GALLONS PER MINUTE0 5 10 15 20 25 30 35 40
HE
AD
IN F
EE
T
0
10
20
30
40
50
60
70
AM
PS
* @
230
VO
LTS
0.75
1.00
1.25
1.50
1.75
2.00
2.25
2.50
Head-Capacity
Amps*
U.S. GALLONS PER MINUTE0 10 20 30 40 50
HE
AD
IN F
EE
T
0
10
20
30
40
50
60
70
AM
PS
* @
208
VO
LTS
1.00
1.25
1.50
1.75
2.00
2.25
2.50
2.75
Head-Capacity
Amps*

C41 • C51 • C61 SERIES
Performance Curves(Three Phase)
3450 RPM
2880 RPM
*Amp and HP data valid for 1.0 specific gravity fluids only (3 Phase)
U.S. GALLONS PER MINUTE0 10 20 30 40 50
HE
AD
IN F
EE
T
0
10
20
30
40
50
60
70
AM
PS
* @
230
VO
LTS
1.00
1.25
1.50
1.75
2.00
2.25
2.50
2.75Head-Capacity
Amps*
U.S. GALLONS PER MINUTE0 10 20 30 40 50
HE
AD
IN F
EE
T
0
10
20
30
40
50
60
70
AM
PS
* @
208
VO
LTS
1.00
1.25
1.50
1.75
2.00
2.25
2.50
2.75
Head-Capacity
Amps*
C41BC - 1/2HP (3/4 X 1 X 4)
C41BC - 1/2HP (3/4 X 1 X 4)
Section C Page 430Dated Jan 2004

Performance Curves (Three Phase)C41 • C51 • C61 SERIES
2880 RPM
3450 RPM
*Amp and HP data valid for 1.0 specific gravity fluids only (3 Phase)
U.S. GALLONS PER MINUTE0 10 20 30 40 50
HE
AD
IN F
EE
T
0
10
20
30
40
50
60
AM
PS
* @
230
VO
LTS
0.75
1.00
1.25
1.50
1.75
2.00
2.25Head-Capacity
Amps*
C41CD - 1/3HP (1 X 1 1/4 X 4)
C41CD - 1/3HP (1 X 1 1/4 X 4)
Section C Page 431Dated Jan 2004
U.S.GALLONS PER MINUTE0 10 20 30 40 50
HE
AD
IN F
EE
T
0
10
20
30
40
50
60
AM
PS
* @
208
VO
LTS
0.75
1.00
1.25
1.50
1.75
2.00
2.25
Head-Capacity
Amps*

C41 • C51 • C61 SERIES
Performance Curves(Three Phase)
3450 RPM
2880 RPM
*Amp and HP data valid for 1.0 specific gravity fluids only (3 Phase)
U.S. GALLONS PER MINUTE0 10 20 30 40 50 60
HE
AD
IN F
EE
T
0
10
20
30
40
50
60
70
AM
PS
* @
230
VO
LTS
1.25
1.50
1.75
2.00
2.25
2.50
2.75
3.00
Head-Capacity
Amps*
U.S. GALLONS PER MINUTE0 10 20 30 40 50 60
HE
AD
IN F
EE
T
0
10
20
30
40
50
60
70
AM
PS
* @
208
VO
LTS
1.00
1.25
1.50
1.75
2.00
2.25
2.50
2.75
Head-Capacity
Amps*
C41CD - 1/2HP (1 X 1 1/4 X 4)
C41CD - 1/2HP (1 X 1 1/4 X 4)
Section C Page 432Dated Jan 2004

Performance Curves (Three Phase)C41 • C51 • C61 SERIES
2880 RPM
3450 RPM
*Amp and HP data valid for 1.0 specific gravity fluids only (3 Phase)
U.S. GALLONS PER MINUTE0 10 20 30 40 50 60 70
HE
AD
IN F
EE
T
0
10
20
30
40
50
60
70
AM
PS
* @
208
VO
LTS
1.50
1.75
2.00
2.25
2.50
2.75
3.00
3.25
Head-Capacity
Amps*
U.S. GALLONS PER MINUTE0 10 20 30 40 50 60 70
HE
AD
IN F
EE
T
0
10
20
30
40
50
60
70
AM
PS
* @
230
VO
LTS
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
Head-Capacity
Amps*
C41CD - 3/4HP (1 X 1 1/4 X 4)
C41CD - 3/4HP (1 X 1 1/4 X 4)
Section C Page 433Dated Jan 2004

C41 • C51 • C61 SERIES
Performance Curves(Three Phase)
3450 RPM
2880 RPM
*Amp and HP data valid for 1.0 specific gravity fluids only (3 Phase)
AM
PS
* @
208
VO
LTS
1.00
1.25
1.50
1.75
2.00
2.25
2.50
U.S. GALLONS PER MINUTE0 10 20 30 40 50 60
HE
AD
IN F
EE
T
0
10
20
30
40
50
60
Head-Capacity
Amps*
GALLONS PER MINUTE0 10 20 30 40 50 60
HE
AD
IN F
EE
T
0
10
20
30
40
50
60
AM
PS
* @
230
VO
LTS
1.25
1.50
1.75
2.00
2.25
2.50
2.75Head-Capacity
Amps*
C41DE - 1/2HP (1 1/4 X 1 1/2 X 4)
C41DE - 1/2HP (1 1/4 X 1 1/2 X 4)
Section C Page 434Dated Jan 2004

Performance Curves (Three Phase)C41 • C51 • C61 SERIES
2880 RPM
3450 RPM
*Amp and HP data valid for 1.0 specific gravity fluids only (3 Phase)
U.S. GALLONS PER MINUTE0 10 20 30 40 50 60 70 80
HE
AD
IN F
EE
T
0
10
20
30
40
50
60
AM
PS
* @
208
VO
LTS
1.75
2.00
2.25
2.50
2.75
3.00
3.25
Head-Capacity
Amps*
U.S.GALLONS PER MINUTE0 10 20 30 40 50 60 70 80
HE
AD
IN F
EE
T
0
10
20
30
40
50
60
AM
PS
* @
230
VO
LTS
1.75
2.00
2.25
2.50
2.75
3.00
3.25
Head-Capacity
Amps*
C41DE - 3/4HP (1 1/4 X 1 1/2 X 4)
C41DE - 3/4HP (1 1/4 X 1 1/2 X 4)
Section C Page 435Dated Jan 2004

C41 • C51 • C61 SERIES
Performance Curves(Three Phase)
3450 RPM
2880 RPM
*Amp and HP data valid for 1.0 specific gravity fluids only (3 Phase)
C41DE - 1 HP (1 1/4 X 1 1/2 X 4)
C41DE - 1 HP (1 1/4 X 1 1/2 X 4)
Section C Page 436Dated Jan 2004
U.S.GALLONS PER MINUTE0 10 20 30 40 50 60 70 80
HE
AD
IN F
EE
T
0
10
20
30
40
50
60
AM
PS
* @
230
VO
LTS
1.00
1.25
1.50
1.75
2.00
2.25
2.50
Head-Capacity
Amps*
U.S. GALLONS PER MINUTE0 10 20 30 40 50 60 70 80
HE
AD
IN F
EE
T
0
10
20
30
40
50
60
AM
PS
* @
208
VO
LTS
2.00
2.25
2.50
2.75
3.00
3.25
3.50
Head-Capacity
Amps*

Performance Curves (Three Phase)C41 • C51 • C61 SERIES
2880 RPM
3450 RPM
*Amp and HP data valid for 1.0 specific gravity fluids only (3 Phase)
U.S. GALLONS PER MINUTE0 10 20 30 40 50 60 70 80 90 100
HE
AD
IN F
EE
T
0
10
20
30
40
50
60
AM
PS
* @
208
VO
LTS
1.75
2.00
2.25
2.50
2.75
3.00
3.25
Head-Capacity
Amps*
U.S. GALLONS PER MINUTE0 10 20 30 40 50 60 70 80 90 100
HE
AD
IN F
EE
T
0
10
20
30
40
50
60
AM
PS
* @
230
VO
LTS
1.5
2.0
2.5
3.0
3.5
4.0
4.5
Head-Capacity
Amps*
C41EF - 3/4HP (1 1/2 X 2 X 4)
C41EF - 3/4HP (1 1/2 X 2 X 4)
Section C Page 437Dated Jan 2004

C41 • C51 • C61 SERIES
Performance Curves(Three Phase)
3450 RPM
2880 RPM
*Amp and HP data valid for 1.0 specific gravity fluids only (3 Phase)
U.S. GALLONS PER MINUTE0 10 20 30 40 50 60 70 80 90 100
HE
AD
IN F
EE
T
0
10
20
30
40
50
60
AM
PS
* @
208
VO
LTS
2.00
2.25
2.50
2.75
3.00
3.25
3.50
Head-Capacity
Amps*
U.S. GALLONS PER MINUTE0 10 20 30 40 50 60 70 80 90 100
HE
AD
IN F
EE
T
0
10
20
30
40
50
60
AM
PS
* @
230
VO
LTS
2.0
2.5
3.0
3.5
4.0
4.5
5.0
Head-Capacity
Amps*
C41EF - 1HP (1 1/2 X 2 X 4)
C41EF - 1HP (1 1/2 X 2 X 4)
Section C Page 438Dated Jan 2004

Performance Curves (Three Phase)C41 • C51 • C61 SERIES
2880 RPM
3450 RPM
*Amp and HP data valid for 1.0 specific gravity fluids only (3 Phase)
U.S. GALLONS PER MINUTE0 10 20 30 40 50 60 70 80 90 100 110 120
HE
AD
IN F
EE
T
0
10
20
30
40
50
60
AM
PS
* @
208
VO
LTS
3.00
3.25
3.50
3.75
4.00
4.25
4.50
Head-Capacity
Amps*
U.S. GALLONS PER MINUTE0 10 20 30 40 50 60 70 80 90 100 110 120
HE
AD
IN F
EE
T
0
10
20
30
40
50
60
AM
PS
* @
230
VO
LTS
2.5
3.0
3.5
4.0
4.5
5.0
5.5
Head-Capacity
Amps*
C41EF - 1 1/2HP (1 1/2 X 2 X 4)
C41EF - 1 1/2HP (1 1/2 X 2 X 4)
Section C Page 439Dated Jan 2004

C41 • C51 • C61 SERIES
Performance Curves(Three Phase)
3450 RPM
2880 RPM
*Amp and HP data valid for 1.0 specific gravity fluids only (3 Phase)
U.S. GALLONS PER MINUTE0 5 10 15 20
HE
AD
IN F
EE
T
0
10
20
30
40
50
60
70
80
AM
PS
* @
208
VO
LTS
1.50
1.75
2.00
2.25
2.50
2.75
3.00
3.25
3.50
Head-Capacity
Amps*
U.S. GALLONS PER MINUTE0 5 10 15 20
HE
AD
IN F
EE
T
0
10
20
30
40
50
60
70
80
AM
PS
* @
230
VO
LTS
1.75
2.00
2.25
2.50
2.75
3.00
3.25
3.50
3.75Head-Capacity
Amps*
C51AB - 1/2HP (1/2 X 3/4 X 5)
C51AB - 1/2HP (1/2 X 3/4 X 5)
Section C Page 440Dated Jan 2004

Performance Curves (Three Phase)C41 • C51 • C61 SERIES
2880 RPM
3450 RPM
*Amp and HP data valid for 1.0 specific gravity fluids only (3 Phase)
U.S. GALLONS PER MINUTE0 5 10 15 20 25
AM
PS
* @
230
VO
LTS
1.8
2.2
2.6
3.0
3.4
3.8
HE
AD
IN F
EE
T
0
20
40
60
80
100Head-Capacity
Amps*
U.S. GALLONS PER MINUTE0 5 10 15 20 25
AM
PS
* @
208
VO
LTS
2.0
2.2
2.4
2.6
2.8
3.0
HE
AD
IN F
EE
T
0
20
40
60
80
100
Head-Capacity
Amps*
C51AB - 3/4HP (1/2 X 3/4 X 5)
C51AB - 3/4HP (1/2 X 3/4 X 5)
Section C Page 441Dated Jan 2004

C41 • C51 • C61 SERIES
Performance Curves(Three Phase)
3450 RPM
2880 RPM
*Amp and HP data valid for 1.0 specific gravity fluids only (3 Phase)
U.S. GALLONS PER MINUTE0 5 10 15 20 25
HE
AD
IN F
EE
T
0
20
40
60
80
100
120
AM
PS
* @
208
VO
LTS
2.6
2.8
3.0
3.2
3.4
3.6
3.8
Head-Capacity
Amps*
U.S. GALLONS PER MINUTE0 5 10 15 20 25
AM
PS
* @
230
VO
LTS
2.4
2.8
3.2
3.6
4.0
4.4
4.8
HE
AD
IN F
EE
T
0
20
40
60
80
100
120
Head-Capacity
Amps*
C51AB - 1HP (1/2 X 3/4 X 5)
C51AB - 1HP (1/2 X 3/4 X 5)
Section C Page 442Dated Jan 2004

Performance Curves (Three Phase)C41 • C51 • C61 SERIES
2880 RPM
3450 RPM
*Amp and HP data valid for 1.0 specific gravity fluids only (3 Phase)
U.S. GALLONS PER MINUTE0 10 20 30 40 50
AM
PS
* @
208
VO
LTS
2.4
2.6
2.8
3.0
3.2
3.4
HE
AD
IN F
EE
T
0
20
40
60
80
100
Head-Capacity
Amps*
U.S. GALLONS PER MINUTE0 10 20 30 40 50
HE
AD
IN F
EE
T
0
20
40
60
80
100
AM
PS
* @
230
VO
LTS
2.4
2.8
3.2
3.6
4.0
4.4Head-Capacity
Amps*
C51BC - 1HP (3/4 X 1 X 5)
C51BC - 1HP (3/4 X 1 X 5)
Section C Page 443Dated Jan 2004

C41 • C51 • C61 SERIES
Performance Curves(Three Phase)
3450 RPM
2880 RPM
*Amp and HP data valid for 1.0 specific gravity fluids only (3 Phase)
U.S. GALLONS PER MINUTE0 10 20 30 40 50 60
AM
PS
* @
208
VO
LTS
3.4
3.6
3.8
4.0
4.2
4.4
4.6
HE
AD
IN F
EE
T
0
20
40
60
80
100
120
Head-Capacity
Amps*
U.S. GALLONS PER MINUTE0 10 20 30 40 50 60
AM
PS
* @
230
VO
LTS
3.4
3.8
4.2
4.6
5.0
5.4
5.8
HE
AD
IN F
EE
T
0
20
40
60
80
100
120
Head-Capacity
Amps*
C51BC - 1 1/2HP (3/4 X 1 X 5)
C51BC - 1 1/2HP (3/4 X 1 X 5)
Section C Page 444Dated Jan 2004

Performance Curves (Three Phase)C41 • C51 • C61 SERIES
2880 RPM
3450 RPM
*Amp and HP data valid for 1.0 specific gravity fluids only (3 Phase)
U.S. GALLONS PER MINUTE0 10 20 30 40 50 60
AM
PS
* @
208
VO
LTS
2.4
2.6
2.8
3.0
3.2
3.4
HE
AD
IN F
EE
T
0
20
40
60
80
100
Head-Capacity
Amps*
GALLONS PER MINUTE0 10 20 30 40 50 60
HE
AD
IN F
EE
T
0
20
40
60
80
100
AM
PS
* @
230
VO
LTS
2.8
3.0
3.2
3.4
3.6
3.8
Head-Capacity
Amps*
C51CD - 1HP (1 X 1 1/4 X 5)
C51CD - 1HP (1 X 1 1/4 X 5)
Section C Page 445Dated Jan 2004

C41 • C51 • C61 SERIES
Performance Curves(Three Phase)
3450 RPM
2880 RPM
*Amp and HP data valid for 1.0 specific gravity fluids only (3 Phase)
U.S. GALLONS PER MINUTE0 10 20 30 40 50 60 70 80
AM
PS
* @
208
VO
LTS
3.4
3.6
3.8
4.0
4.2
4.4
4.6
HE
AD
IN F
EE
T
0
20
40
60
80
100
120
Head-Capacity
Amps*
U.S. GALLONS PER MINUTE0 10 20 30 40 50 60 70 80
AM
PS
* @
230
VO
LTS
3.2
3.6
4.0
4.4
4.8
5.2
5.6
HE
AD
IN F
EE
T
0
20
40
60
80
100
120
Head-Capacity
Amps*
C51CD - 1 1/2HP (1 X 1 1/4 X 5)
C51CD - 1 1/2HP (1 X 1 1/4 X 5)
Section C Page 446Dated Jan 2004

Performance Curves (Three Phase)C41 • C51 • C61 SERIES
2880 RPM
3450 RPM
*Amp and HP data valid for 1.0 specific gravity fluids only (3 Phase)
U.S. GALLONS PER MINUTE0 10 20 30 40 50 60 70 80
HE
AD
IN F
EE
T
0
20
40
60
80
100
120
AM
PS
* @
230
VO
LTS
4.4
4.8
5.2
5.6
6.0
6.4
6.8
Head-Capacity
Amps*
U.S. GALLONS PER MINUTE0 10 20 30 40 50 60 70 80
AM
PS
* @
208
VO
LTS
2.2
2.4
2.6
2.8
3.0
3.2
3.4
HE
AD
IN F
EE
T
0
20
40
60
80
100
120
Head-Capacity
Amps*
C51CD - 2HP (1 X 1 1/4 X 5)
C51CD - 2HP (1 X 1 1/4 X 5)
Section C Page 447Dated Jan 2004

C41 • C51 • C61 SERIES
Performance Curves(Three Phase)
3450 RPM
2880 RPM
*Amp and HP data valid for 1.0 specific gravity fluids only (3 Phase)
U.S. GALLONS PER MINUTE0 10 20 30 40 50 60 70
AM
PS
* @
208
VO
LTS
3.2
3.6
4.0
4.4
4.8
5.2
HE
AD
IN F
EE
T
0
20
40
60
80
100
Head-Capacity
Amps*
U.S. GALLONS PER MINUTE0 10 20 30 40 50 60 70
AM
PS
* @
230
VO
LTS
3.2
3.6
4.0
4.4
4.8
5.2
HE
AD
IN F
EE
T
0
20
40
60
80
100
Head-Capacity
Amps*
C51DE - 1 1/2HP (1 1/4 X 1 1/2 X 5)
C51DE - 1 1/2HP (1 1/4 X 1 1/2 X 5)
Section C Page 448Dated Jan 2004

Performance Curves (Three Phase)C41 • C51 • C61 SERIES
2880 RPM
3450 RPM
*Amp and HP data valid for 1.0 specific gravity fluids only (3 Phase)
U.S. GALLONS PER MINUTE0 10 20 30 40 50 60 70 80 90 100
AM
PS
* @
230
VO
LTS
4.4
4.8
5.2
5.6
6.0
6.4
HE
AD
IN F
EE
T
0
20
40
60
80
100
Head-Capacity
Amps*
U.S. GALLONS PER MINUTE0 10 20 30 40 50 60 70 80 90 100
AM
PS
* @
208
VO
LTS
4.6
4.8
5.0
5.2
5.4
5.6
HE
AD
IN F
EE
T
0
20
40
60
80
100
Head-Capacity
Amps*
C51DE - 2HP (1 1/4 X 1 1/2 X 5)
C51DE - 2HP (1 1/4 X 1 1/2 X 5)
Section C Page 449Dated Jan 2004

C41 • C51 • C61 SERIES
Performance Curves(Three Phase)
3450 RPM
2880 RPM
*Amp and HP data valid for 1.0 specific gravity fluids only (3 Phase)
U.S. GALLONS PER MINUTE0 5 10 15 20 25
AM
PS
* @
208
VO
LTS
3.8
4.0
4.2
4.4
4.6
4.8
5.0
5.2
5.4
HE
AD
IN F
EE
T
0
20
40
60
80
100
120
140
160
Head-Capacity
Amps*
U.S. GALLONS PER MINUTE0 5 10 15 20 25
AM
PS
* @
230
VO
LTS
4.4
4.6
4.8
5.0
5.2
5.4
5.6
5.8
6.0
HE
AD
IN F
EE
T
0
20
40
60
80
100
120
140
160
Head-Capacity
Amps*
C61AB - 1 1/2HP (1/2 X 3/4 X 6)
C61AB - 1 1/2HP (1/2 X 3/4 X 6)
Section C Page 450Dated Jan 2004

Performance Curves (Three Phase)C41 • C51 • C61 SERIES
2880 RPM
3450 RPM
*Amp and HP data valid for 1.0 specific gravity fluids only (3 Phase)
U.S. GALLONS PER MINUTE0 10 20 30 40 50 60
AM
PS
* @
208
VO
LTS
3.6
3.8
4.0
4.2
4.4
4.6
4.8
HE
AD
IN F
EE
T
0
20
40
60
80
100
120
Head-Capacity
Amps*
U.S. GALLONS PER MINUTE0 10 20 30 40 50 60
AM
PS
* @
230
VO
LTS
3.6
4.0
4.4
4.8
5.2
5.6
6.0
HE
AD
IN F
EE
T
0
20
40
60
80
100
120Head-Capacity
Amps*
C61BC - 1 1/2HP (3/4 X 1 X 6)
C61BC - 1 1/2HP (3/4 X 1 X 6)
Section C Page 451Dated Jan 2004

C41 • C51 • C61 SERIES
Performance Curves(Three Phase)
3450 RPM
2880 RPM
*Amp and HP data valid for 1.0 specific gravity fluids only (3 Phase)
U.S. GALLONS PER MINUTE0 10 20 30 40 50 60
AM
PS
* @
208
VO
LTS
4.6
4.8
5.0
5.2
5.4
5.6
5.8
6.0
6.2
HE
AD
IN F
EE
T
0
20
40
60
80
100
120
140
160
Head-Capacity
Amps*
U.S. GALLONS PER MINUTE0 10 20 30 40 50 60
AM
PS
* @
230
VO
LTS
4.4
4.8
5.2
5.6
6.0
6.4
6.8
7.2
7.6
HE
AD
IN F
EE
T
0
20
40
60
80
100
120
140
160
Head-Capacity
Amps*
C61BC - 2HP (3/4 X 1 X 6)
C61BC - 2HP (3/4 X 1 X 6)
Section C Page 452Dated Jan 2004

Performance Curves (Three Phase)C41 • C51 • C61 SERIES
2880 RPM
3450 RPM
*Amp and HP data valid for 1.0 specific gravity fluids only (3 Phase)
U.S. GALLONS PER MINUTE0 10 20 30 40 50 60 70 80
AM
PS
* @
208
VO
LTS
5.2
5.4
5.6
5.8
6.0
6.2
6.4
6.6
6.8
HE
AD
IN F
EE
T
0
20
40
60
80
100
120
140
160
Head-Capacity
Amps*
U.S. GALLONS PER MINUTE0 10 20 30 40 50 60 70 80
AM
PS
* @
230
VO
LTS
5
6
7
8
9
10
11
12
13
HE
AD
IN F
EE
T
0
20
40
60
80
100
120
140
160
Head-Capacity
Amps*
C61BC - 3HP (3/4 X 1 X 6)
C61BC - 3HP (3/4 X 1 X 6)
Section C Page 453Dated Jan 2004

C41 • C51 • C61 SERIES
Performance Curves(Three Phase)
3450 RPM
2880 RPM
*Amp and HP data valid for 1.0 specific gravity fluids only (3 Phase)
U.S. GALLONS PER MINUTE0 10 20 30 40 50 60 70
AM
PS
* @
208
VO
LTS
4.8
5.2
5.6
6.0
6.4
6.8
7.2
7.6
8.0
HE
AD
IN F
EE
T
0
20
40
60
80
100
120
140
160
Head-Capacity
Amps*
U.S. GALLONS PER MINUTE0 10 20 30 40 50 60 70
AM
PS
* @
230
VO
LTS
2
3
4
5
6
7
8
9
10
HE
AD
IN F
EE
T
0
20
40
60
80
100
120
140
160Head-Capacity
Amps*
C61CD - 3HP (1 X 1 1/4 X 6)
C61CD - 3HP (1 X 1 1/4 X 6)
Section C Page 454Dated Jan 2004