140 • 240 • 180 • 280 Series• Capacities to 60 GPM
• Heads to 800 Feet
• Low NPSH Requirements• Low NPSH Requirements
• Flex Coupled
LOW NPSH
200 Series InducerThe 200 Series inducer style pumps are ideally suited to applications where available NPSH at the pump inlet is limited, such as boiler feed water deaerator service.A centrifugal Francis vane impeller with low NPSH characteristics is utilized as the pump’s fi rst stage impeller, accounting for the lower inlet head requirement.This fi rst stage impeller is used in conjunction with a multi-vane diffuser to provide the NPSH required by the second stage regenerative turbine.Available NPSH as low as two feet can be effectively handled with 240 • 280 Series pumps, depending on the pump model and capacity.
MTH PUMPS
140
• 240
SER
IES
PUM
PS
Page 100-3
LIMITATIONSDischarge Pressure 400 PSISeal Pressure* 200 PSISuction Pressure (Min.) 26” Hg. Vac.Speed 1750 RPMHorsepower 15 HP
TemperatureStandard Construction -20° F-20° FCeramic Seal Seat - Water +230° FNi-Resist Seal Seat - Water +230° FSilicon Carbide Seal Seat& External Seal Flush +250° F
* Suction Pressure Plus a Percentage of Differential Pressure
© Copyright 2011 MTH Tool Company, Inc. Dated May 2011
140 • 240 • 180 • 280 SERIES
140 • 240 SERIES PUMPS
Page 100-4
© Copyright 2011 MTH Tool Company, Inc. Dated May 2011
Selection Chart
NOTESSelections based on cold water fl ooded suction 1.0 S.G. Open Drip Proof Motor.Consult individual pump curve for fi nal selection.*Refer to T31 • T41 • T51 Series Curves**Refer to 150 • 250 • 160 • 260 • 170 • 270 Series Selection chart
U.S. GALLONS PER MINUTEHEAD
INFEET
4 5 6 8 10 12 15 20 25 30 40 50Model
HPModel
HPModel
HPModel
HPModel
HPModel
HPModel
HPModel
HPModel
HPModel
HPModel
HPModel
HP
25 * * *141D
.5141E
.5141F
.5141G
.5141H.75
141I.75
141IA1
181M1.5
181P1.5
50 * *141D
.5141E
.5141F
.5141G
.5141H.75
141I1
181K1
181M1.5
181P1.5
181R2
75 * *141D
.5141E
.5141F.75
142F.75
141H1
141I1
141IA1.5
181M2
181R3
182R5
100 *141D
.5141E
.5141F.75
142F.75
141H1
141I1
141IA1.5
182K2
181P2
182P3
183R5
125141D.75
141E.75
141E.75
141G1
142F1
142G1.5
142H1.5
142I2
182K2
182M3
182P3
183R5
150141E.75
141E.75
142D1
143E1
142G1.5
143G1.5
142H2
143I3
142IA3
182M5
182R5
184R7.5
175141E
1142D
1 142E
1142F1.5
142G1.5
142H2
142I2
182K3
143IA3
182P5
183P5
**
200141E
1142D
1142E
1142F1.5
143F1.5
142H2
142I3
142IA3
183K3
183M5
183R7.5
**
225142D1.5
143D1.5
142E1.5
142F1.5
143G2
143H3
142I3
142IA3
143IA5
183P5
184P7.5
**
250142D1.5
143D1.5
142E1.5
143F2
143G2
143H3
143I3
143IA5
144IA5
183P5
184R10
**
300143D1.5
142E1.5
143E1.5
143F2
143H3
142I3
143I5
143IA5
183P7.5
184P7.5
** **
350144D
2144D
2143E
2144F
3144H
5144H
5143I
5144IA
5184M7.5
184P7.5
** **
400144D
2 143E
2144E
2144G
3144H
5143I
5144I
5144IA
5184P7.5
** ** **
450144D
2143E
2144E
2144G
3143I
5144I
5183K7.5
184P10
184R15
** ** **
500144D
3144E
3144F
3143I
5143I7.5
144I7.5
144IA7.5
** ** ** ** **
550143E
3144E
3143I
5143I
5144I7.5
144IA7.5
** ** ** ** ** **
600144E
3144G
5143I7.5
144I7.5
144I7.5
144IA7.5
** ** ** ** ** **
650144E
3** ** ** ** ** ** ** ** ** ** **
700144E
3** ** ** ** ** ** ** ** ** ** **
140 • 240 • 180 • 280 SERIES
Performance Curves
140
• 240
SER
IES
PUM
PS
Page 100-5
© Copyright 2011 MTH Tool Company, Inc. Dated May 2011
U.S. GALLONS PER MINUTE0 10
HE
AD
IN F
EE
T
0
100
200
300
400
500
600
700
800
0
1
2
3
4
5
BH
P**
0
1
2
3
4
144D • 244D
143D • 243D
142D • 242D
141D • 241D 140D NPSHR
240D NPSHR
144D • 244D*
143D • 243D*
142D • 242D*
141D • 241D*
140D & 240D* 1750 RPM
2 4 6 8
U.S. GALLONS PER MINUTE0 102 4 6 8
NP
SH
IN F
EE
T
NOTESConsult factory for operation below 1.5 GPM*Add 1/2 horsepower for 240 Series models**Horsepower data is valid for 1.0 specifi c gravity fl uids only
140 • 240 • 180 • 280 SERIES
Performance Curves
140 • 240 SERIES PUMPS
Page 100-6
© Copyright 2011 MTH Tool Company, Inc. Dated May 2011
U.S. GALLONS PER MINUTE0 4 8 10 12
HE
AD
IN F
EE
T
0
100
200
300
400
500
600
700
800
0
1
2
3
4
5
BH
P**
0
1
2
3
4
5
144E • 244E143E • 243E
142E • 242E
141E • 241E
240E NPSHR
144E • 244E*
143E • 243E*
142E • 242E*
141E • 241E*
140E & 240E* 1750 RPM
140E NPSHR
2 6
U.S. GALLONS PER MINUTE0 4 8 10 122 6
NP
SH
IN F
EE
T
NOTESConsult factory for operation below 1.5 GPM*Add 1/2 horsepower for 240 Series models**Horsepower data is valid for 1.0 specifi c gravity fl uids only
140 • 240 • 180 • 280 SERIES
Performance Curves
140
• 240
SER
IES
PUM
PS
Page 100-7
© Copyright 2011 MTH Tool Company, Inc. Dated May 2011
U.S. GALLONS PER MINUTE0 4 10 12 14 16
HE
AD
IN F
EE
T
0
100
200
300
400
500
600
700
800
0
2
4
6
8
10
BH
P**
0
1
2
3
4
5
144F • 244F143F • 243F
142F • 242F
141F • 241F
140F NPSHR
240F NPSHR
144F • 244F*
143F • 243F*
142F • 242F*
141F • 241F*
140F & 240F* 1750 RPM
6 82
U.S. GALLONS PER MINUTE0 4 10 12 14 166 82
NP
SH
IN F
EE
T
NOTESConsult factory for operation below 2 GPM*Add 1/2 horsepower for 240 Series models**Horsepower data is valid for 1.0 specifi c gravity fl uids only
140 • 240 • 180 • 280 SERIES
Performance Curves
140 • 240 SERIES PUMPS
Page 100-8
© Copyright 2011 MTH Tool Company, Inc. Dated May 2011
BH
P**
0
1
2
3
4
5
6
U.S. GALLONS PER MINUTE0 2 8 10 12 14 16 18
HE
AD
IN F
EE
T
0
100
200
300
400
500
600
700
800
0
1
2
3
4
5
144G • 244G 143G • 243G
141G • 241G
140G NPSHR
240G NPSHR
140G & 240G* 1750 RPM
144G • 244G *
143G • 243G*
142G • 242G*
141G • 241G*
142G • 242G
4 6
U.S. GALLONS PER MINUTE0 2 8 10 12 14 16 184 6
NP
SH
IN F
EE
T
NOTESConsult factory for operation below 2.5 GPM*Add 1/2 horsepower for 240 Series models**Horsepower data is valid for 1.0 specifi c gravity fl uids only
140 • 240 • 180 • 280 SERIES
Performance Curves
140
• 240
SER
IES
PUM
PS
Page 100-9
© Copyright 2011 MTH Tool Company, Inc. Dated May 2011
U.S. GALLONS PER MINUTE0 10 15 20 25
HE
AD
IN F
EE
T
0
100
200
300
400
500
600
700
800
0
2
4
6
8
10
BH
P**
0
1
2
3
4
5
6
144H • 244H
143H • 243H
142H • 242H
141H • 241H 140H NPSHR
240H NPSHR
144H • 244H*
143H • 243H*
142H • 242H*
141H • 241H*
140H & 240H* 1750 RPM
5
U.S. GALLONS PER MINUTE0 10 15 20 255
NP
SH
IN F
EE
T
NOTESConsult factory for operation below 3 GPM*Add 1/2 horsepower for 240 Series models**Horsepower data is valid for 1.0 specifi c gravity fl uids only
140 • 240 • 180 • 280 SERIES
Performance Curves
140 • 240 SERIES PUMPS
Page 100-10
© Copyright 2011 MTH Tool Company, Inc. Dated May 2011
U.S. GALLONS PER MINUTE0 10 15 20 25 30
HE
AD
IN F
EE
T
0
100
200
300
400
500
600
700
800
0
4
8
12
16
BH
P**
0
2
4
6
8
10
144I • 244I143I • 243I
142I • 242I
141I • 241I
140I NPSHR
240I NPSHR
144I • 244I*
143I • 243I*
142I • 242I*
141I • 241I*
140I & 240I* 1750 RPM
5
U.S. GALLONS PER MINUTE0 10 15 20 25 305
NP
SH
IN F
EE
T
NOTESConsult factory for operation below 3 GPM*Add 1/2 horsepower for 240 Series models**Horsepower data is valid for 1.0 specifi c gravity fl uids only
140 • 240 • 180 • 280 SERIES
Performance Curves
140
• 240
SER
IES
PUM
PS
Page 100-11
© Copyright 2011 MTH Tool Company, Inc. Dated May 2011
U.S. GALLONS PER MINUTE0 10 15 20 25 30 35 40
HE
AD
IN F
EE
T
0
100
200
300
400
500
600
700
800
0
4
8
12
16
20
24
BH
P**
0
2
4
6
8
10
144IA • 244IA143IA • 243IA
142IA • 242IA
141IA • 241IA
140IA NPSHR
240IA NPSHR
144IA • 244IA*
143IA • 243IA*
142IA • 242IA*
141IA • 241IA*
140IA & 240IA* 1750 RPM
5
U.S. GALLONS PER MINUTE0 10 15 20 25 30 35 405
NP
SH
IN F
EE
T
NOTESConsult factory for operation below 5 GPM*Add 1/2 horsepower for 240 Series models**Horsepower data is valid for 1.0 specifi c gravity fl uids only
140 • 240 • 180 • 280 SERIES
Performance Curves
140 • 240 SERIES PUMPS
Page 100-12
© Copyright 2011 MTH Tool Company, Inc. Dated May 2011
U.S. GALLONS PER MINUTE0 10 15 20 25 30 35 40
HE
AD
IN F
EE
T
0
100
200
300
400
500
600
700
800
0
2
4
6
8
10
BH
P**
0
2
4
6
8
10
183K • 283K
182K • 282K
181K • 281K
280K NPSHR
184K • 284K*
183K • 283K*
182K • 282K*
181K • 281K*
180K & 280K* 1750 RPM184K • 284K
180K NPSHR
5
U.S. GALLONS PER MINUTE0 10 15 20 25 30 35 405
NP
SH
IN F
EE
T
NOTESConsult factory for operation below 5 GPM*Add 1/2 horsepower for 280 Series models**Horsepower data is valid for 1.0 specifi c gravity fl uids only
140 • 240 • 180 • 280 SERIES
Performance Curves
140
• 240
SER
IES
PUM
PS
Page 100-13
© Copyright 2011 MTH Tool Company, Inc. Dated May 2011
U.S. GALLONS PER MINUTE0 10 20 30 40 50
U.S. GALLONS PER MINUTE0 10 20 30 40 50
HE
AD
IN F
EE
T
0
100
200
300
400
500
600
700
800
0
2
4
6
8
10
BH
P**
0
2
4
6
8
10
184M • 284M
183M • 283M
182M • 282M
181M • 281M
280M NPSHR
184M • 284M*
183M • 283M*
182M • 282M*
181M • 281M*
180M & 280M* 1750 RPM
180M NPSHR NP
SH
IN F
EE
T
NOTESConsult factory for operation below 5 GPM*Add 1/2 horsepower for 280 Series models**Horsepower data is valid for 1.0 specifi c gravity fl uids only
140 • 240 • 180 • 280 SERIES
Performance Curves
140 • 240 SERIES PUMPS
Page 100-14
© Copyright 2011 MTH Tool Company, Inc. Dated May 2011
U.S. GALLONS PER MINUTE0 10 20 30 40 50 60
U.S. GALLONS PER MINUTE0 10 20 30 40 50 60
HE
AD
IN F
EE
T
0
100
200
300
400
500
600
700
800
0
4
8
12
16
BH
P**
0
2
4
6
8
10
184P • 284P
183P • 283P
182P • 282P
181P • 281P
280P NPSHR
184P • 284P*
183P • 283P*
182P • 282P*
181P • 281P*
180P & 280P* 1750 RPM
180P NPSHR NP
SH
IN F
EE
T
NOTESConsult factory for operation below 8 GPM*Add 1/2 horsepower for 280 Series models**Horsepower data is valid for 1.0 specifi c gravity fl uids only
140 • 240 • 180 • 280 SERIES
Performance Curves
140
• 240
SER
IES
PUM
PS
Page 100-15
© Copyright 2011 MTH Tool Company, Inc. Dated May 2011
U.S. GALLONS PER MINUTE0 10 20 30 40 50 60 70
HE
AD
IN F
EE
T
0
100
200
300
400
500
600
700
800
0
U.S. GALLONS PER MINUTE0 10 20 30 40 50 60 70
10
20
30
40
BH
P**
0
2
4
6
8
10
12
14
16
184R • 284R
183R • 283R
182R • 282R
181R • 281R
280R NPSHR
184R • 284R*
183R • 283R*
182R • 282R*
181R • 281R*
180R NPSHR
180R & 280R* 1750 RPM
NP
SH
IN F
EE
T
NOTESConsult factory for operation below 8 GPM*Add 1/2 horsepower for 280 Series models**Horsepower data is valid for 1.0 specifi c gravity fl uids only
140 • 240 • 180 • 280 SERIES
Performance Curves
140 • 240 SERIES PUMPS
Page 100-16
© Copyright 2011 MTH Tool Company, Inc. Dated May 2011
U.S. GALLONS PER MINUTE0 10 20 30 40 50 60
U.S. GALLONS PER MINUTE0 10 20 30 40 50 60
HE
AD
IN F
EE
T
0
100
200
300
400
500
600
700
800
0
5
10
15
20
BH
P
0
1
2
3
4
5
6
7
8
184S • 284S
183S • 283S
182S • 282S
181S • 281S
280S NPSHR
184S • 284S*
183S • 283S*
182S • 282S*
181S • 281S*
180S & 280S* 1750 RPM
180S NPSHR
NP
SH
IN F
EE
T
NOTESConsult factory for operation below 10 GPM*Add 1/2 horsepower for 280 Series models**Horsepower data is valid for 1.0 specifi c gravity fl uids only
140 • 240 • 180 • 280 SERIES
Dimensions
140
• 240
SER
IES
PUM
PS
Page 100-17
© Copyright 2011 MTH Tool Company, Inc. Dated May 2011
Pump Only DimensionsESG
1/2 1/22 15/16 T
3/4 DIA.
1 1/2
1 1/2
3 1/2
7 1/412
1 1/2
D
HD
5 1/2
2 7/8SGKL
C
Pump Only DimensionsPump Only DimensionsPump Only DimensionsPUMP SERIES INLET DISCHARGE E G S T
141 1 1/4” NPT 1 1/4” NPT 2 1/8 3 13/16 4 1/4 6 142 1 1/4” NPT 1 1/4” NPT 2 1/8 3 13/16 6 1/4 8143 1 1/4” NPT 1 1/4” NPT 2 1/8 3 13/16 8 1/4 10144 1 1/4” NPT 1 1/4” NPT 2 1/8 3 13/16 10 1/4 12181 1 1/2” NPT 1 1/2” NPT 2 1/4 3 11/16 5 1/2 7182 1 1/2” NPT 1 1/2” NPT 2 1/4 3 11/16 8 1/2 10183 1 1/2” NPT 1 1/2” NPT 2 1/4 3 11/16 11 1/2 13184 1 1/2” NPT 1 1/2” NPT 2 1/4 3 11/16 14 1/2 16
ALL 140 MODELS MODEL 141 MODEL 142 MODEL 143 MODEL 144FRAME CPLG K D HD C S L S L S L S L
56 3J 3/8 3 1/2 8 1/2 12 4 1/4 24 6 1/4 26 8 1/4 28 10 1/4 30143T 4J 5/8 3 1/2 8 1/2 13 4 1/4 24 6 1/4 26 8 1/4 28 10 1/4 30145T 4J 5/8 3 1/2 8 1/2 14 4 1/4 24 6 1/4 26 8 1/4 28 10 1/4 30182T 5J 3/4 4 1/2 9 1/2 16 4 1/4 26 6 1/4 30 8 1/4 32 10 1/4 35184T 5J 3/4 4 1/2 9 1/2 17 --- --- 6 1/4 30 8 1/4 32 10 1/4 35213T 6J 7/8 5 1/4 10 1/4 19 --- --- --- --- 8 1/4 35 10 1/4 40215T 6J 7/8 5 1/4 10 1/4 20 --- --- --- --- --- --- 10 1/4 40
ALL 180 MODELS MODEL 181 MODEL 182 MODEL 183 MODEL 184FRAME CPLG K D HD C S L S L S L S L
56 3J 3/8 3 1/2 8 1/2 12 5 1/2 26 8 1/2 28 11 1/2 30 14 1/2 35143T 4J 5/8 3 1/2 8 1/2 13 5 1/2 26 8 1/2 28 11 1/2 30 14 1/2 35145T 4J 5/8 3 1/2 8 1/2 14 5 1/2 26 8 1/2 28 11 1/2 30 14 1/2 35182T 5J 3/4 4 1/2 9 1/2 16 5 1/2 28 8 1/2 30 11 1/2 32 14 1/2 40184T 5J 3/4 4 1/2 9 1/2 17 5 1/2 28 8 1/2 30 11 1/2 32 14 1/2 40213T 6J 7/8 5 1/4 10 1/4 19 --- --- 8 1/2 35 11 1/2 40 14 1/2 45215T 6J 7/8 5 1/4 10 1/4 20 --- --- 8 1/2 35 11 1/2 40 14 1/2 45
140 Series Flex Coupled Pump Dimensions140 Series Flex Coupled Pump Dimensions140 Series Flex Coupled Pump Dimensions140 Series Flex Coupled Pump Dimensions140 Series Flex Coupled Pump Dimensions140 Series Flex Coupled Pump Dimensions140 Series Flex Coupled Pump Dimensions
180 Series Flex Coupled Pump Dimensions180 Series Flex Coupled Pump Dimensions180 Series Flex Coupled Pump Dimensions180 Series Flex Coupled Pump Dimensions180 Series Flex Coupled Pump Dimensions180 Series Flex Coupled Pump Dimensions180 Series Flex Coupled Pump Dimensions
ROTATION: Clockwise when viewed from driver end.
NOTESAll dimensions in inches. May vary ± ¼ inches.*C Dimension varies depending on motor enclosure type. Max Dimension ListedNot for construction purposes unless certifi ed.ROTATION: Clockwise when viewed from driver end.
INLET DISCHARGE
1 TYP.4 - 17/32 Ø Foundation Holes
1 TYP.
140 • 240 • 180 • 280 SERIES
Dimensions
140 • 240 SERIES PUMPS
Page 100-18
© Copyright 2011 MTH Tool Company, Inc. Dated May 2011
PUMP SERIES INLET DISCHARGE E S T241 1 1/2” NPT 1 1/4” NPT 2 1/8 5 5/8 6242 1 1/2” NPT 1 1/4” NPT 2 1/8 7 5/8 8243 1 1/2” NPT 1 1/4” NPT 2 1/8 9 5/8 10244 1 1/2” NPT 1 1/4” NPT 2 1/8 11 5/8 12281 1 1/2” NPT 1 1/2” NPT 2 1/4 6 5/8 7282 1 1/2” NPT 1 1/2” NPT 2 1/4 9 5/8 10283 1 1/2” NPT 1 1/2” NPT 2 1/4 12 5/8 13284 1 1/2” NPT 1 1/2” NPT 2 1/4 15 5/8 16
NOTESAll dimensions in inches. May vary ± ¼ inches.*C Dimension varies depending on motor enclosure type. Max Dimension ListedNot for construction purposes unless certifi ed.ROTATION: Clockwise when viewed from driver end.
ES5 3/4
1/2 1/26 1/4 T
3/4 DIA.
2 7/8S5 3/4KL
C1 1/2
1 1/2
3 1/2
5 1/2
7 1/4
12
1 1/2
D
HD
D
ALL 240 MODELS MODEL 241 MODEL 242 MODEL 243 MODEL 244FRAME CPLG K D HD C S L S L S L S L
56 3J 3/8 3 1/2 8 1/2 12 5 5/8 28 7 5/8 30 9 5/8 32 11 5/8 35143T 4J 5/8 3 1/2 8 1/2 13 5 5/8 28 7 5/8 30 9 5/8 32 11 5/8 35145T 4J 5/8 3 1/2 8 1/2 14 5 5/8 28 7 5/8 30 9 5/8 32 11 5/8 35182T 5J 3/4 4 1/2 9 1/2 16 5 5/8 30 7 5/8 32 9 5/8 35 11 5/8 38184T 5J 3/4 4 1/2 9 1/2 17 5 5/8 30 7 5/8 32 9 5/8 35 11 5/8 38213T 6J 7/8 5 1/4 10 1/4 19 --- --- --- --- 9 5/8 40 11 5/8 40215T 6J 7/8 5 1/4 10 1/4 20 --- --- --- --- 9 5/8 40 11 5/8 40
ALL 280 MODELS MODEL 281 MODEL 282 MODEL 283 MODEL 284FRAME CPLG K D HD C S L S L S L S L
56 3J 3/8 3 1/2 8 1/2 12 6 5/8 28 9 5/8 32 12 5/8 35 15 5/8 38143T 4J 5/8 3 1/2 8 1/2 13 6 5/8 28 9 5/8 32 12 5/8 35 15 5/8 38145T 4J 5/8 3 1/2 8 1/2 14 6 5/8 28 9 5/8 32 12 5/8 35 15 5/8 38182T 5J 3/4 4 1/2 9 1/2 16 6 5/8 30 9 5/8 35 12 5/8 38 15 5/8 40184T 5J 3/4 4 1/2 9 1/2 17 6 5/8 30 9 5/8 35 12 5/8 38 15 5/8 40213T 6J 7/8 5 1/4 10 1/4 19 --- --- --- --- 12 5/8 40 15 5/8 42215T 6J 7/8 5 1/4 10 1/4 20 --- --- --- --- 12 5/8 40 15 5/8 42
Pump Only DimensionsPump Only DimensionsPump Only DimensionsPump Only Dimensions
240 Series Flex Coupled Pump Dimensions240 Series Flex Coupled Pump Dimensions240 Series Flex Coupled Pump Dimensions240 Series Flex Coupled Pump Dimensions240 Series Flex Coupled Pump Dimensions240 Series Flex Coupled Pump Dimensions240 Series Flex Coupled Pump Dimensions240 Series Flex Coupled Pump Dimensions240 Series Flex Coupled Pump Dimensions
280 Series Flex Coupled Pump Dimensions
ROTATION: Clockwise when viewed from driver end.
INLET DISCHARGE
1 TYP.4 - 17/32 Ø Foundation Holes
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