MULTISTAGE STAINLESS STEEL CENTRIFUGAL PUMP

MULTISTAGE STAINLESS STEELCENTRIFUGAL PUMP

1. Application :

The GMAX series is a multipurpose pump rangesuitable for a variety of different applicationsdemanding reliable and cost efficient supply.

a. Thin, non-explosive liquids, not containingsolid particles. Handles various liquids fromportable water to industrial liquids within avery wide temperature, flow and pressurescales.

b.When pumping liquids with a higher density(or) viscosity, the correction for the same has tobe done for capacity, head and power factors.

Usage

• Pressure boosting in high-rise buildings, hotels etc.

• Municipal water supply and pressure boosting• Boiler feed and condensate systems• Washing plants and wash down• Irrigation and dewatering• Domestic water supply• Cooling water systems• Fire fighting

2. Codes :

Example

3. Technical Data :

a. Liquid Temperature

Normal operating - AmbientLiquid - Std Design - -15˚C to +90˚C

Hot water - -15˚C to +120˚C

b. Minimum inlet pressure - NPSH

Calculation of the inlet pressure "H" isrecommended when....

• the liquid temperature is high• the flow is significantly higher than the

rated flow• water is drawn from depths • water is drawn through long pipes • inlet conditions are poor

GMAX Vertical Multistage in - line

GMAX Multistage Series. V - Vertical, H - Horizontal

50Hz only

60Hz only

Rated flow rate in M3 / hr

Number of stages X 10

G V / H R S 2 - 2 0

Check that the pump is not and will not be exposed to cavitation

To avoid cavitation, make sure that there is aminimum pressure on the suction side of thepump. The maximum suction lift "H" inmeters head can be calculated as follows

H = Pb X 10.2 - NPSH - Hf - Hv - Hs

Pb = Barometric pressure in bar.(Barometric pressure can be set to 1 bar.) In closed systems, Pb indicatesthe system pressure in bar.

NPSH = Net Positive Suction Head in meters head.(To be read from the NPSH curve at the highest flow the pump will be delivering.)

Hf = Friction loss in suction pipe in metershead.(At the highest flow the pump will be delivering).

Hv = Vapor pressure in meters head.(To be read from the vapor pressurescale. “ Hv” depends on the liquid temperature "Tm")

Hs = Safety margin = minimum 0.5 metershead.(To be read from the vapor pressurescale.“ Hv” depends on the liquid temperature “ Tm” )

If the "H" calculated is positive, the pump canoperate at a suction lift of maximum "H"meters head.

If the "H" calculated is negative, an inletpressure of minimum "H" meters head isrequired.

c. Motor

The motor is totally enclosed, fan-cooled, 2-pole with principal dimensions in accordancewith the EN standards

Electrical tolerances according to EN 60034

Electrical Data

Mounting Up to 4kW: V18Designation From 5.5 kW: V1

Insulation Class F

Efficiency class Eff.2Eff.1 - on request

Enclosure class IP 55IP 44 & IP 54 - on request

50Hz 3 x 200 - 220 / 346 - 380V,±10%standard voltages 3 x 220 - 240 / 380 - 415V.

3 x 380 - 415 ∆V1 x 220-230 / 240 V

60Hz 3 x 460 / 220 V.standard voltages

Motor protection

Single phase motors have a built in thermaloverload switchThree phase motors must be connected to amotor starter in accordance with localregulationsThree phase motors from 3 kW and upwardshave a built-in thermostat (PTC) according toDIN 44 082.

Ambient temperature

Maximum +40˚CIf the ambient temperature exceeds +40˚C orif the motor is located 1000 meters abovesea level, the motor output (P2) must bereduced due to the low density andconsequently low cooling effect of the air. Insuch cases, it may be necessary to use amotor with a higher output.

Stainless Steel Centrifugal Pumps

50

60

70

80

90

100

[%]

P2

20 25 30 35 40 45 50 55 60 65 70 75 80

1000 2250 3500 m

t[˚C]

Material

Pump components can be supplied in SS 304 (or) SS 316 (table given below)

Materials : GVR / GVS

Pos. Description Materials

1 Pump head Cast iron EN-GJL-200

2 Pump head cover Stainless steel 304

3 Shaft Stainless steel 304 (or) 316

4 Base Stainless steel 304 (or) 316

5 Shaft seal Mechanical

6 Base plate Cast iron EN-GJL-200

Rubber parts EDPM or FKM

Impeller

O-ring for outer sleeve

Outer sleeve

Chamber

7

8

9

10

11

Stainless steel 304 (or) 306



EDPM or FKM

Stainless steel on request*

73

5

1

10

8

4

2

11

9

6

DIMENSION AND WEIGHT

1. Curves as per ISO2548C / DIN1944 / III2. Head and power ratings apply to media with a

density of 1Kg / dm3 and a kinetic viscosity of 20mm2/s3. The operation of pump shall refer to the scope of

performance of the black curve to prevent dangerdue to overheating

4. Electrical tolerance according to EN 600345. Check that the pump is not and will not be

exposed to cavitation6. Electrical data: 3 x 380 - 415 V, 50 Hz.7. Measurements have been made with airless water

at temp. of 20˚C8. Head and power ratings apply to media with a

density of 1kg/dm3 and a kinetic viscosity of 20 mm2/s.

GVR - 250Hz 2900rpm

Motor QModel

(kW) (m3/h)

1 1.2 1.6 2.0 2.4 2.8 3.2 3.5

GVR2 - 20 0.37 18 17 16 15 13 12 10 8GVR2 - 30 0.37 27 26 24 22 20 18 15 12GVR2 - 40 0.55 36 35 33 30 26 24 20 16GVR2 - 50 0.55 45 43 40 37 33 30 24 20GVR2 - 60 0.75 H 53 52 50 45 40 36 30 24GVR2 - 70 0.75 (m) 63 61 57 52 47 41 35 28GVR2 - 90 1.1 80 78 73 67 61 54 45 37GVR2 - 110 1.1 98 95 89 82 73 64 54 44GVR2 - 130 1.5 116 114 106 98 89 78 65 52GVR2 -150 1.5 134 130 123 112 100 90 73 60GVR2 - 180 2.2 161 157 148 136 121 108 91 76GVR2 - 220 2.2 197 192 180 165 148 130 110 90GVR2 - 260 3.0 232 228 214 198 179 158 130 110

Size (mm) WeightModel

B1 B2 B1+B2 D1 D2 (Kg.)GVR2 - 20 220 225 445 145 110 20GVR2 - 30 238 225 463 145 110 20GVR2- 40 256 225 481 145 110 20GVR2 - 50 274 225 499 145 110 20GVR2 - 60 297 225 522 145 110 25GVR2 - 70 315 225 540 145 110 25GVR2 - 90 351 245 596 170 150 30GVR2 - 110 387 245 632 170 150 30GVR2 - 130 440 245 685 170 150 35GVR2 - 150 476 245 721 170 150 35GVR2 - 180 530 265 795 180 155 40GVR2 - 220 602 265 867 180 155 45GVR2 - 260 682 290 972 180 155 50

SPECIFICATION


SPECIFICATIONMotor Q

Model(kW) (m

3/h)

1.5 2.0 3.0 4.0 5.0 6.0 7.0 8.0

GVR4 - 20 0.37 19 18 17 15 13 10 8 6GVR4 - 30 0.55 28 27 26 24 20 18 13 10GVR4 - 40 0.75 38 36 34 32 27 24 19 13GVR4 - 50 1.1 47 45 43 40 34 31 23 17GVR4 - 60 1.1 (H) 56 54 52 48 41 37 28 20GVR4 - 70 1.1 (m) 66 63 61 56 48 43 33 24GVR4 - 80 1.5 74 72 70 64 55 50 38 27GVR4 - 100 2.2 96 90 87 81 71 62 48 34GVR4 - 120 2.2 114 108 104 95 85 75 58 41GVR4 -140 3.0 136 126 122 112 101 89 68 48GVR4 - 160 3.0 152 144 140 129 115 101 78 55GVR4 - 190 4.0 183 171 168 153 137 122 93 67GVR4 - 220 4.0 211 200 192 178 160 138 108 79


B1 B2 B1+B2 D1 D2 (Kg.)GVR4 - 20 235 225 460 145 110 20GVR4 - 30 265 225 490 145 110 20GVR4- 40 295 225 520 145 110 20GVR4 - 50 325 245 570 170 150 20GVR4 - 60 350 245 595 170 150 20GVR4 - 70 420 245 665 170 150 25GVR4 - 80 420 245 665 170 150 25GVR4 - 100 475 265 740 170 150 30GVR4 - 120 530 265 795 180 155 35GVR4 - 140 645 290 935 180 155 35GVR4 - 160 645 290 935 180 155 35GVR4 - 190 725 325 1050 210 180 35GVR4 - 220 805 325 1130 210 180 40

1. Curves as per ISO2548C / DIN1944 / III2. Head and power ratings apply to media with a density

of 1Kg / dm3 and a kinetic viscosity of 20mm2 / s3. The operation of pump shall refer to the scope of





density of 1kg/dm3 and a kinetic viscosity of 20 mm2/s.

GVR - 450Hz 2900rpm



Model(kW) (m

3/h)

5.0 6.0 7.0 8.0 9.0 10.0 11.0 12.0

GVR8 - 20 /1 0.75 10 9.5 9.3 9 8.5 8 7 6GVR8 - 20 0.75 20 19.5 19 18 17 16 14 13GVR8 - 30 1.1 30 29.5 28.5 27 25 24 21 19GVR8 - 40 1.5 41 39.5 38 36 34 32 28 26GVR8 - 50 2.2 H 52 50 48 45 42 40 36 32GVR8 - 60 2.2 (m) 62 60 57 54 51 48 43 39GVR8 - 80 3.0 83 80 77 73 69 65 58 52GVR8 - 100 4.0 104 100 97 92 87 81 73 65GVR8 - 120 4.0 124 120 116 111 104 97 87 78GVR8 - 140 5.5 145 141 136 130 122 113 102 92GVR8 - 160 5.5 166 161 156 148 139 130 118 106GVR8 - 180 7.5 187 182 175 167 157 146 134 120GVR8 - 200 7.5 208 202 195 186 175 163 150 135


B1 B2 B1+B2 D1 D2 (Kg.)GVR8 - 20 /1 345 225 570 145 110 25GVR8 - 20 350 225 575 145 110 25GVR8 - 30 380 245 625 170 150 30GVR8 - 40 420 245 665 170 150 30GVR8 - 50 450 265 715 180 155 40GVR8 - 60 480 265 745 180 155 40GVR8 - 80 550 290 840 180 155 45GVR8 - 100 610 325 935 210 180 55GVR8 - 120 670 325 995 210 180 55GVR8 - 140 750 380 1130 250 210 80GVR8 - 160 810 380 1190 250 210 80GVR8 - 180 870 380 1250 250 210 90GVR8 - 200 930 380 1310 250 210 90






at temp. of 20˚C8. Head and power ratings apply to media with a density

of 1kg/dm3 and a kinetic viscosity of 20 mm2 /s.

GVR - 850Hz 2900rpm



Model(kW) (m

3/h)

8 10 12 14 16 18 20 22

GVR16 - 20 0.75 27 26 25 24 22 21 19 16GVR16 - 30 0.75 41 40 38 37 34 32 26 25GVR16 - 40 1.1 54 53 52 49 46 43 38 34GVR16 - 50 1.5 68 67 65 62 58 54 48 43GVR16 - 60 2.2 H 82 80 78 74 70 64 58 52GVR16 - 70 2.2 (m) 96 95 91 87 82 76 68 61GVR16 - 80 3.0 110 108 104 99 94 86 77 70GVR16 - 100 4.0 138 136 131 125 118 109 97 87GVR16 - 120 4.0 166 162 157 150 141 130 116 105GVR16 - 140 5.5 194 190 184 175 166 152 136 122GVR16 - 160 5.5 222 217 210 200 189 174 156 140


B1 B2 B1+B2 D1 D2 (Kg.)GVR16 - 20 400 265 665 180 155 40GVR16 - 30 455 290 745 180 155 50GVR16 - 40 500 325 825 210 180 55GVR16 - 50 565 380 945 250 210 70GVR16 - 60 610 380 990 250 210 75GVR16 - 70 655 380 1035 250 210 80GVR16 - 80 700 380 1080 250 210 80GVR16 - 100 820 490 1310 330 255 140GVR16 - 120 910 490 1400 330 255 145GVR16 - 140 1000 490 1490 330 255 160GVR16 - 160 1090 490 1580 330 255 165








GVR - 1650Hz 2900rpm



Model(kW) (m

3/h)

1 1.5 2 2.5 3 3.5 4 4.5

GVS2- 20 0.55 26 24 22 21 19 16 12 9GVS2 - 30 0.75 39 36 34 31 27 24 19 15GVS2 - 40 1.1 52 48 45 42 36 32 26 20GVS2 - 50 1.1 H 65 61 57 52 46 41 33 25GVS2 - 60 1.1 (m) 78 74 69 63 56 49 40 30GVS2 - 70 1.5 92 86 81 74 66 57 47 35GVS2 - 90 2.2 118 111 104 95 86 76 61 45GVS2 - 110 2.2 144 137 128 117 106 91 75 55GVS2 - 130 3.0 171 163 152 139 126 108 90 66GVS2 - 150 3.0 198 188 176 161 146 125 104 77GVS2 - 180 4.0 238 228 212 195 175 151 126 94


B1 B2 B1+B2 D1 D2 (Kg.)GVS2 - 20 220 225 445 145 110 20GVS2 - 30 238 225 463 145 110 20GVS2 - 40 256 245 519 170 150 25GVS2 - 50 274 245 501 170 150 25GVS2 - 60 297 245 542 170 150 25GVS2 - 70 325 245 570 170 150 30GVS2 - 90 361 265 590 180 155 35GVS2 - 110 397 265 662 180 155 35GVS2 - 130 450 290 740 180 155 40GVS2 - 150 486 290 776 180 155 40GVS2 - 180 540 325 865 210 180 45





exposed to cavitation6. Electrical data: 3 x 440, 60 Hz.7. Measurements have been made with airless water



GVS - 260Hz 3500rpm


SPECIFICATION







density of 1kg/dm3 and a kinetic viscosity of 20 mm2 /s.

GVS - 460Hz 3500rpm

Motor QModel

(kW) (m3/h)

2.5 3 4 5 6 7 8 9

GVS4 - 20 0.75 26 25 23 21 19 16 14 11GVS4 - 30 1.1 40 39 36 32 30 26 22 18GVS4 - 40 1.5 53 52 48 44 41 35 31 24GVS4 - 50 2.2 H 66 65 60 55 51 44 39 30GVS4 - 60 2.2 (m) 80 78 73 67 61 54 47 36GVS4 - 70 3 93 91 85 78 71 63 55 42GVS4 - 80 3 107 104 97 90 82 73 63 49GVS4 - 100 4 134 130 121 113 103 92 80 61GVS4 - 120 4 161 156 145 136 125 111 96 74GVS4 - 140 5.5 188 183 170 159 146 130 112 86GVS4 - 160 5.5 215 210 196 183 168 149 128 99


B1 B2 B1+B2 D1 D2 (Kg.)GVS4 - 20 241 225 466 145 110 20GVS4 - 30 271 245 516 170 150 20GVS4 - 40 312 245 557 170 150 25GVS4 - 50 340 265 605 170 150 30GVS4 - 60 367 265 632 170 150 35GVS4 - 70 429 290 179 180 155 40GVS4 - 80 429 290 719 180 155 40GVS4 - 100 482 325 807 210 180 45GVS4 - 120 536 325 861 210 180 45GVS4 - 140 665 380 1045 250 210 70GVS4 - 160 665 380 1045 250 210 70


SPECIFICATION








GVS - 860Hz 3500rpm


B1 B2 B1+B2 D1 D2 (Kg.)GVS8 - 20/1 350 225 575 145 110 25GVS8 - 20 360 245 605 170 150 30GVS8 - 30 390 265 655 180 155 35GVS8 - 40 430 290 720 180 155 40GVS8 - 50 460 290 750 180 155 45GVS8 - 60 490 325 815 210 155 50GVS8 - 80 570 380 950 250 180 75GVS8 - 100 630 380 1010 250 210 85GVS8 - 120 690 380 1070 250 210 85GVS8 - 140 780 490 1270 330 255 130

Motor QModel

(kW) (m3/h)

7 8 9 10 11 12 13 14

GVS8- 20/1 0.75 13 12 11.5 11 10.5 10 9.5 9GVS8 - 20 1.5 27 26 25 24 23 22 20 18GVS8 - 30 2.2 41 40 38 37 35 33 31 28GVS8 - 40 3 55 54 52 50 47 45 42 38GVS8 - 50 3 H 70 68 65 63 59 56 52 48GVS8 - 60 4 (m) 85 82 78 76 72 68 63 58GVS8 - 80 5.5 115 111 105 101 97 91 85 78GVS8 - 100 7.5 145 140 132 126 122 115 107 98GVS8 - 120 7.5 175 169 160 152 148 139 129 118GVS8 - 140 11 205 198 188 179 174 163 152 139


Model(kW) (m

3/h)

10 12 14 16 18 20 22 24 26

GVS16 - 20/1 2.2 19 18.5 18 17 16 15 14 13 11GVS16 - 20 4 38 37.5 37 36 34 32 30 27 24GVS16 - 30 5.5 57 56 55 54 51 48 45 40 36GVS16 - 40 7.5 H 76 75 73 72 68 64 60 54 49GVS16 - 50 11 (m) 96 94 92 90 85 80 75 68 62GVS16 - 60 11 115 113 111 108 102 96 91 82 75GVS16 - 70 15 135 132 129 126 119 113 106 96 88GVS16 - 80 15 155 152 148 144 137 130 122 111 101GVS16 - 100 18.5 197 192 187 181 174 165 153 141 127


1. Curves as per ISO2548C / DIN1944 / III2. Head and power ratings apply to media with a

density of 1Kg / dm3 and a kinetic viscosity of20mm2 / s

3. The operation of pump shall refer to the scope ofperformance of the black curve to prevent dangerdue to overheating




density of 1kg/dm3 and a kinetic viscosity of 20 mm2 /s.

GVS - 1660Hz 3500rpm


B1 B2 B1+B2 D1 D2 (Kg.)GVS16 - 20/1 400 265 665 180 155 40GVS16 - 20 410 325 735 210 180 50GVS16 - 30 475 380 855 250 210 70GVS16 - 40 520 380 900 250 210 80GVS16 - 50 595 490 1085 330 255 140GVS16 - 60 640 490 1130 330 255 145GVS16 - 70 685 490 1175 330 255 160GVS16 - 80 730 490 1220 330 255 160GVS16 - 100 820 535 1355 330 255 190

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M U LT I S TA G E S TA I N L E S S S T E E L C E N T R I F U G A L P U M P

MULTISTAGE STAINLESS STEEL CENTRIFUGAL PUMP

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