C.R.I. HORIZONTAL MULTISTAGE PUMPS - 50HzC.R.I. HORIZONTAL MULTISTAGE PUMPS - 50HzC.R.I. HORIZONTAL MULTISTAGE PUMPS - 50Hz

MH SERIES

Vision, Mission and Values

To be the industry leader providing best - in - class fluid management

solutions to individual and institutional customers and societies

in our chosen markets.

We will achieve this through our dedicated efforts to enhance the

welfare of all our stakeholders and by living by our values of

commitment, reliability and innovation.

M H S E R I E S

C.R.I. Horizontal Multistage MH series pump is non-self priming, axial suction and vertical radial delivery type with threaded

ports. All wetted components like impellers, diffusers and shaft of these pumps are made of corrosion resistant AISI stainless

steel and designed to deliver the best possible hydraulic efficiency. The pump and motor are connected with a single drive shaft

to eliminate any transmission loss. As the shaft, Impeller, diffusers and other vital components of the pump are made up of high

grade stainless Steel AISI 304/316, these pumps can be used to pump high aggressive water and quite hygienic to use in

drinking water systems too. Wear resistant bearings ensure better hydraulic efficiency and noiseless operation and the pump

casing & brackets are made of high quality cast iron. 'O' rings and gaskets prevent leakage at the intermediate casing during

high pressure.Mechanical seals of these pumps are made of ceramic and carbon graphite to ensure reliability and easy

replacement. These pumps are reliable, easy to install and designed for high end user comfort.

C.R.I. Horizontal Multistage centrifugal pumps are powered by a

Totally Enclosed Fan Cooled, A.C. induction motor, suitable for

continuous duty. Motor stator is made of low watt loss steel

laminations assembled under pressure and rigidly locked in the

frame. Dynamically balanced rotor ensures vibration and noise

free operation and the varnished impregnated windings made of

enameled copper wire offer excellent resistance.

Shaft of ample size made of quality steel and precisely ground is

used for transmitting the rated Horsepower. Construction of motor frames and usage of quality materials result in high

performance and low temperature rise thereby increasing the life cycle of the motor. Thermal over load protector (motor

protector) is incorporated in single phase motors. These pumps require an adequate motor protection control panel.

APPLICATIONS : Industrial and Domestic water pressure boosting and distribution, Small farms,

Gardens, Pumping of clean liquids in industry, Car washing, Cooling systems / Air Conditioning

system.

MH SERIES - 50 Hz2

C O M M I T M E N T R E L I A B I L I T Y I N N O V A T I O N

MODEL IDENTIFICATION CODE

M X X - XXX / XX X

Multistage Centrifugal

Type / PoleH - Horizontal / 2 pole

Nominal Flow 3(inm /h)

No of Impellers

Type of Materials of Construction (M.O.C)

S = Single Phase - PSCM = Single Phase - CSCRT = Three Phase - DOLD = Three Phase - SD

(H)

This digit is applicable onlyfor high head models

Pump Casing / Impeller / Diffuser / Pump Bracket / Pump Base

S = Cast Iron / SS 304 / SS 304 / Cast Iron / M.S

L = SS 304 / SS 304 / SS 304 / SS 304 / M.S

N = SS 316 / SS 316 / SS 316 / SS 316 / M.S

Note : To include decimal values in the nominal flow from 0.1 to 0.8 alphabets A to H are used.

Pumping trust. Worldwide.

HORIZONTAL MULTISTAGE PUMPS 3

Power Range 0.22 to 2.2kW

Speed 2900 rpm

Degree of protection IP 54

Insulation class F

Versions Single Phase 220 / 240V, 50Hz, A.C. Supply (Permanent Split Capacitor-PSC) Incorporated with

thermal protector.

Three Phase 380 / 415V

Sealing Mechanical seal

Direction of rotation Counter clockwise viewed from driving end

Type of Duty S1 (Continuous)

TECHNICAL DATA

a)

b)

c)

d)

e)

f)

g)

h)

O0°C - 90 C (max.)

500 ppm (max.)

3000 ppm (max.)

1.004 (max.)

300 (max.)

6 21.75 x 10 m / Sec. (max.)

50 ppm silica scale (max.)

6.5 to 8.5

Temperature

Chlorine ion density

Allowable solids

Specific gravity

Hardness (Drinking water)

Viscosity

Turbidity

pH

CHARACTERISTICS OF PUMPED LIQUIDS

Max. Operating Pressure 1 mpa (10bar) 0.6 mpa (6bar)

MH-2E & 5 0°C to 40°C 41°C to 90°C

MH-8 & 12 0°C to 55°C 56°C to 90°C

OPERATING LIMITS

Maximum Ambient Temperature

Maximum Operating Pressure 0.55 Mpa (5.5 bar)

Minimum Inlet Pressure NPSH + 0.5 m

OMaximum Liquid Temperature 90 C

O 40 C

l l l

l

l

l

Curve tolerance are according to ISO 9906, Annex-A. The performance are taken at rated voltage & speed that are only indicative. Actual

discharge depends on availability . The measurements were made with airless

water be used. The bold curves

indicate the recommended . Pipe fiction losses have not been included in the .

of water in well / tank, height of water column from the suction pipe end

O at 20 C. When pumping liquids with a density higher than of water, motors with correspondingly higher outputs must

performance range performance curves & performance tables

The conditions below apply to the curves shown on the following pages.

PERFORMANCE CURVE CONDITIONS

MH SERIES - 50 Hz4

MATERIALS OF CONSTRUCTION

Part Name

Pump Casing

Pump Bracket

Impeller

Diffuser

Pump Shaft

Mechanical Seal

Base Plate

MHS

Cast Iron

Cast Iron

S.S. 304

S.S. 304

S.S. 410

Sic & Carbon

Mild Steel

MHL

S.S. 304

S.S. 304

S.S. 304

S.S. 304

S.S. 410

Sic & Carbon

Mild Steel

MHN

S.S. 316

S.S. 316

S.S. 316

S.S. 316

S.S. 410

Sic & Carbon

Mild Steel

C O M M I T M E N T R E L I A B I L I T Y I N N O V A T I O N

l/s

m³/hr

He

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in

me

ters

Model

MH -2 /02M

MHS-2E/03M

MHS-2E/04M

MHS-2E/05M

MHS-2E/06M

S E

kW

0.22

0.30

0.37

0.45

0.55

HP

0.3

0.4

0.5

0.6

0.75

0

0

17

27

37

47

55

0.27

1

16

24

33

43

50

0.41

1.5

14

23

32

40

47.5

0.55

2

13

21

29

37

43.5

0.69

2.5

12

18.5

26

33

38.5

0.83

3

9

16

22

27.5

32.5

0.97

3.5

7.5

12.5

17.5

22

26.5

NOMINAL PUMP SIZE : 1" x 1"

3NOMINAL FLOW : 2.5 m /h

MHS - 2.5

HORIZONTAL MULTISTAGE PUMPS 5

0.25

0

0

1

0 2.251.250.75

2 3

0.5

0.25

4 5

1.0 1.75

8

0.50

6 7

1.5

9 10

2.0

11 12

0.75

2.5 2.75

13 14

3.0 3.25

1716

1.0

15

3.5 3.75 4.0

5

0

15

10

20

30

25

40

35

50

45

60

55

80

20

0

10

50

40

30

70

60

140

110

100

90

120

130

170

150

160

180

0.25

0

0

1

0 2.251.250.75

2 3

0.5

0.25

4 5

1.0 1.75

8

0.50

6 7

1.5

9 10

2.0

11 12

0.75

2.5 2.75

13 14

3.0 3.25

1716

1.0

15

3.5 3.75 4.0

2

0

6

4

8

10

0

5

10

15

20

25

CAPACITY - (lps)

CAPACITY - (m³/h)

CAPACITY - (US gpm)

25

10

0

5

20

15

30

35

EF

FIC

IEN

CY

(%

)

FE

ET

Eff %

ME

TE

RS

CAPACITY - (lps)

CAPACITY - (m³/h)

CAPACITY - (US gpm)

FE

ET

ME

TE

RS

MHS-2E/06M

MHS-2E/05M

MHS-2E/04M

MHS-2E/03M

MHS-2E/02M

50Hz-2900 rpm

NPSH CURVE

PERFORMANCE CURVES

PERFORMANCE TABLES

Pumping trust. Worldwide.

l/s

m³/hr

He

ad

in

me

ters

Model

MH - /02M

MHS-5/03M

MHS-5/04M

MHS-5/05M

MHS-5/06M

S 5

kWHP

0.3

0.45

0.55

0.75

1.1

0.4

0.6

0.75

1.0

1.5

0

0

17

26.5

35

45

54

0.55

2

15

23

31

40

49.5

0.83

3

13.5

22

28.5

38

47

1.11

4

12.5

19.5

26

34

43

1.38

5

11

17

23

31

38

1.66

6

8

13

18

24

30

1.94

7

7

12

16

22

22

2.22

8

5

8

12

15

20

MH SERIES - 50 Hz6

MHS - 53NOMINAL FLOW : 5 m /h

28

1.750.500

20 4

0.25

6

0.5 1.0 1.5

18

4.0

0.75

108 12 14 16

1.00

2.0 2.5 3.53.0

20

1.25

22 24

1.50

26

4.5 5.0 5.5 6.0

3830 32

2.00

36

2.25

34

7.57.06.5 8.0 8.5

2.50

9.0

25

10

0

5

20

15

30

35

40

5

0

15

10

20

30

25

40

35

50

45

60

55

80

20

0

10

50

40

30

70

60

140

110

100

90

120

130

170

150

160

180

0

2

0

6

4

8

10

0

28

1.750.500

20 4

0.25

6

0.5 1.0 1.5

18

4.0

0.75

108 12 14 16

1.00

2.0 2.5 3.53.0

20

1.25

22 24

1.50

26

4.5 5.0 5.5 6.0

3830 32

2.00

36

2.25

34

7.57.06.5 8.0 8.5

2.50

9.00

0

5

10

15

20

25

CAPACITY - (lps)

CAPACITY - (m³/h)

CAPACITY - (US gpm)

FE

ET

ME

TE

RS

CAPACITY - (lps)CAPACITY - (m³/h)

CAPACITY - (US gpm)

EF

FIC

IEN

CY

(%

)

FE

ET

ME

TE

RS

MHS-5/06M

MHS-5/05M

MHS-5/04M

MHS-5/03M

MHS-5/02M

50Hz-2900 rpm

NPSH CURVE

PERFORMANCE CURVES

PERFORMANCE TABLES NOMINAL PUMP SIZE : 1" x 1" & 1¼ x 1" "

C O M M I T M E N T R E L I A B I L I T Y I N N O V A T I O N

Eff %

NOMINAL PUMP SIZE : 1½" X 1¼"

l/s

m³/hr

He

ad

in

me

ters

Model

MH - /0 M

MHS-8/02M

MHS-8/02M-H

MHS-8/03M

MHS-8/03M-H

S 8 1

kW

0.37

0.75

0.93

1.1

1.5

HP

0.5

1.0

1.25

1.5

2.0

0

0

17.5

27.5

35

46

53

0.83

3

17

26

32

43

49

1.11

4

16.5

26

31

42

47.5

1.38

5

16

24

29

39

45

1.66

6

14

23

27.5

37

42.5

1.94

7

13

22

25

33

33.5

2.22

8

12

19

22

29

34

2.5

9

10

17

18.5

25

29

2.77

10

8

13.5

16

22.5

24.5

HORIZONTAL MULTISTAGE PUMPS 7

MHS - 83NOMINAL FLOW : 8 m /h

CAPACITY - (US gpm)

CAPACITY - (lps)

CAPACITY - (m³/h)

CAPACITY - (US gpm)

FE

ET

ME

TE

RS

CAPACITY - (lps)CAPACITY - (m³/h)

FE

ET

ME

TE

RS

NPSH CURVE

0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 9.0 10.0 11.0 12.0

0 0.5 1.0 1.5 2.0 2.5 3.0

0 10 20 30 40 50

0

5

10

15

20

25

30

35

40

45

50

55

0

10

20

30

40

50

60

70

80

90

100

110

120

130

140

150

160

170

180

0 1.01.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 9.0 10.0 11.0 12.0

0 0.5 1.0 1.5 2.0 2.5 3.0

0 10 20 30 40 50

22

4

6

8

10

2

5

10

15

20

25

30

MHS-8/03M-H

MHS-8/03M

MHS-8/02M-H

MHS-8/02M

MHS-8/01M

50Hz-2900 rpm50

40

30

20

10

0

PERFORMANCE CURVES

PERFORMANCE TABLES

Pumping trust. Worldwide.

NOMINAL PUMP SIZE : 1½" X 1½"

l/s

m³/hr

He

ad

in

me

ters

Model

MH - /0 M

MHS-12/02M

MHS-12/02M-H

MHS-12/03M

MHS-12/03M-H

S 12 1

kW

0.55

0.75

1.1

1.5

2.2

HP

0.75

1.0

1.5

2.0

3.0

0

0

18.5

28.5

36

47

57

0.55

2

18

17.5

35.5

46

56

1.11

4

18

27

34.5

44

54

1.66

6

17.5

26

33.5

42.5

52.5

2.22

8

16.5

24

32

44.5

50

2.77

10

14.5

21

28.5

36

46

3.38

12

12.5

17.5

24.5

31

41

3.88

14

10 (13.8)

13

24

26

33.5

MH SERIES - 50 Hz8

MHS - 123NOMINAL FLOW : 12 m /h

0 1.0 2.0 3.0 4.04.0 5.0 6.0 7.0 8.0 9.0 10.0 11.0 12.0 13.0 14.0 15.0

50Hz-2900 rpmMHS-12/03M-H

MHS-12/03M

MHS-12/02M-H

MHS-12/02M

MHS-12/01M

NPSH CURVE

CAPACITY - (lps)

CAPACITY - (m³/h)

CAPACITY - (US gpm)

CAPACITY - (lps)

CAPACITY - (m³/h)

CAPACITY - (US gpm)

FE

ET

ME

TE

RS

FE

ET

ME

TE

RS

0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0

0 10 20 30 40 50 60

0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 9.0 10.0 11.0 12.0 13.0 14.0 15.0

0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0

0 10 20 30 40 50 60

0

2

4

6

8

10

0

5

10

15

20

25

30

0

10

20

30

40

50

60

70

80

90

100

110

120

130

140

150

160

170

180

190

0

5

10

15

20

25

30

35

40

45

50

55

60

PERFORMANCE CURVES

PERFORMANCE TABLES

C O M M I T M E N T R E L I A B I L I T Y I N N O V A T I O N

Model

MHS-2E/02M

MHS-2E/03M

MHS-2E/04M

MHS-2E/05M

MHS-2E/06M

12

13

14

15

16

Approx.Weight in kg

215

215

215

215

215

TH

134

134

134

134

134

W

160

160

160

160

160

L2

70

89

108

127

146

L1

130

130

130

130

130

W1

Model

MHS-5/02M

MHS-5/03M

MHS-5/04M

MHS-5/05M

MHS-5/06M

12

14

15

18

20

Approx.Weight in kg

90

90

90

90

90

CH

215

215

215

215

215

TH

134

134

134

134

134

W

160

160

160

160

160

L2

108

135

162

190

217

L3

79

107

135

163

191

L1

130

130

130

130

130

W1

HORIZONTAL MULTISTAGE PUMPS 9

DIMENSIONAL & WEIGHT

MHS - 2.5 & 5

MHS - 8 & 12

DIMENSIONAL & WEIGHT

L3

W1W

108.0

L1L2

138.0

CH

TH

L

L3

L1L2

138.0108.0W1W

CH

TH

L

320

338

362

390

409

1Ph

320

343

362

400

419

3Ph

99

118

137

156

175

L3

90

90

90

90

90

CH

L

329

371

414

461

514

1Ph

333

381

424

471

514

3Ph

16

20

20.5

25

28.5

Approx.Weight in kg

130

130

130

130

130

W1181

181

181

181

181

W160

160

160

160

160

L252

82

82

114

114

L1L

MHS-8/01M

MHS-8/02M

MHS-8/02M-H

MHS-8/03M

MHS-8/03M-H

Model

238

238

238

238

238

TH109

109

109

109

109

CH339

399

414

467

460

1Ph339

399

414

467

460

3Ph72

102.5

102.5

133

133

L3

18

20.5

28.5

30.5

34

Approx.Weight in kg

130

130

130

130

130

W1181

181

181

181

181

W160

160

160

160

160

L252

82

82

114

114

L1L

MHS-12/01M

MHS-12/02M

MHS-12/02M-H

MHS-12/03M

MHS-12/03M-H

Model

238

238

238

238

238

TH109

109

109

109

109

CH349

414

430

476

496

1Ph349

414

430

476

496

3Ph72

102.5

102.5

133

133

L3

L

Pumping trust. Worldwide.

DC

-MH

-02

/12

-E2

In view of continuous developments the information / performance / descriptions / specifications / Illustrations mentioned in this catalogues are subject to change without notice.

TOLL FREE 1800 200 1234 | www.cripumps.in

Registered Office

7/46-1, Keeranatham Road, Saravanampatty, Coimbatore - 641 035. INDIA

Phone : +91-422-2669971, 3027000, Fax : +91-422-2669961, e-mail : corp@cripumps.com