pump table

7/26/2019 Pump Table

1/8(60)

Part 3

CALCULATION OF TOTAL SYSTEM HEAD

(This formula is for water. Density of water is 100 kg/m3)

1) Hm : total manometric head ( m)

It is the total energy given to unit weight of the fluid by pump.Unit is meters of water column.

2) Hg = ( ZB- Z

e) : Total geometric (static) head ( in meters)

It is the level difference between free water surface on suction

and discharge. ( in meters)

3) PB- P

e: The diffrence of pressure values on free water

surfaces on suction and discharge ( in meters) (1kg/cm2)

If water surfaces on suction and discharge are open toatmosphere P

B= P

e= 0. If the pump is being pumped to or

from a pressurised tank PBand Pe values will be taken intoconsideration.

4) It is the total loss caused by equipment on suction and

discharge lines. ( meters)

: Head loss in straight pipe line ( meters) : This calculated

by considering capacity, pipe diameter and length on Table 2head loss values for 100 m pipe are given.

L = total pipe length

h = from table 2

: Total minor loss ( meters) :This is the loss caused by the elements installed on the system

Such as valves, fittings, elbows etc.

Can be calculated by multiplying loss coefficients (K) and kineticenergy (V2/2g).

Fluid velocity :

V =m/s Q= m2/s D= m ( pipe diameter)

g = gravitational acceleration.

Fitting / Equipment type

Gate valve

Non return valve

Elbow

Foot valve

Tee

Reservoir/ Tank entry and exit

Example:

Centrifugal pump

Capacity : Q = 50 m3/h

Geometric head : Hg = 12mPipe diameter : 80 Pipe length = 140 m

On the discharge line there is 1 of 80 gate valve and 4 of

80 elbow. Suction and discharge reservoirs are open toatmosphere ( there is no pressure, formula is

The friction loss in pipe line tabulated from Table 1. For capacityvalue 50 m3/h and pipe diameter 80

Friction loss read from table as 10 m for each 100 m pipe. Flowvelocity is calculated as V= 2,7 m/s

total friction loss in the pipes and total minor loss calculated

as following :

pipe

kminor

Putting all calculated values in to the main equation

Total manometric head

Pump operator must consider to purchase pump withoperating point Q = 50 m3/h and Hm= 30,8 m

Minor loss coefficients may vary

according to manufacture


2/8

Water at 20C galvanized sm

V= Fluid velocity in the p

Q Capacity ( m3/h)(TABLE 2)


3/8

FRICTION LOSS TABLE FOR GALVANIZED

STEEL PIPES

NOTE = hk value depeds on pipe type pipe smoothness, scaling amount of the pipe.

(62)

V= Fluid velocity in the pipe (m/s)hk = Friction loss for 100 m pipe

Capacity Pipe diameter

m3/h lt/min


4/8(63)

TABLES / FLANGE NORMS

FLANGE BOLTS

ISO PN 6 FLANGE DIMENSIONS ( TS ISO 7005-2)

MetricDIAMETER

FLANGE BOLTS


MetricDIAMETER

FLANGE BOLTS


Metric

DIAMETER

FLANGE BOLTS


Metric

DIAMETER

QTY QTY

QTY QTY


5/8


6/8

CONVERSATION TABLES FOR COMMON UNITS

1 inch = 2,54 cm = 0,0254 m = 25,4 mm

1 foot = 30,48 cm = 0,3048 m = 304,8 mm

1 meter = 39,27 inch

1 meter = 3,282 foot

1 meter = 100 cm = 1000 mm

1 mm = 1000 m

1 nautical mile = 1852 meter

1 kW = 1,36 HP

1 kW = 1000WPOW

ER

VOLUME

TRICFLOWR

ATE

PRESS

URE

LENGTH

AREA

M = 9549. P (kW) = (Nm)

n (d/d)MOMENT

DEN

SITY

Iron = 7,85 gr/cm3

Copper = 8,96 gr/cm3

Aluminium = 2,71 gr/cm3

Lead = 11,34 gr/cm3

Zinc = 7,13 gr/cm3

Water = 1 gr/cm3

1 kg/cm2= 1 atm = 1 bar = 105Pa = 10 mwc

1 kPa = 0,102 mwc = 0,001 bar1 MPa = 102 mwc = 10 bar

1 Psi = 0,7 mwc

1 lt/m = 0,0167 lt/s

1 lt/m = 0,06 m3/h

1 lt/s = 3,6 m3/h

1 m3/h = 16,66 lt/m

1 m3/h = 2,778.10-4 m3/sn

1 m3/h = 4,405 u.s.gallon (usgpm)

100 u.s.gallon (usgpm) = 22,71 m3/h

1m2 = 100 dm2 = 10000 cm2

1 in2 (square inch) = 6,415 cm2

1 hectar (ha) = 10000 m2

(65)


7/8

WEIGHT OF BARS

D

b

a

h

h

h

4

5

6

7

8

910

11

12

13

14

15

16

18

20

22

24

26

28

30

32

34

36

38

40

42

44

46

48

50

55

60

65

70

75

80

90

100

110

120

130

140

150

160170

180

190

200

0.099

0.154

0.222

0.302

0.395

0.4990.617

0.746

0.888

1.042

1.208

1.387

1.578

1.998

2.466

2.984

3.551

4.168

4.834

5.549

6.313

7.127

7.990

8.903

9.86

10.88

11.94

13.05

14.21

15.41

18.65

22.20

26.05

30.21

34.68

39.46

49.94

61.65

74.60

88.78

104.14

120.84

138.72

157.83178.18

199.76

222.57

246.62

ROUNDED STEEL BARS

DIMENSION(mm)

INITWEIGHT(kg/m)

20X10

25X10

30X10

35X10

40X10

45X1050X10

60X10

70X10

80X10

90X10

100X10

20X12

25X12

30X12

35X12

40X12

45X12

50X12

60X12

70X12

80X12

90X12

100X12

20X15

25X15

30X15

35X15

40X15

45X15

50X15

60X15

70X15

80X15

90X15

100X15

20X20

25X20

30X20

35X20

40X20

45X20

50X20

60X2070X20

80X20

90X20

100X20

1.570

1.963

2.355

2.748

3.140

3.5333.925

4.710

5.495

6.280

7.065

7.850

1.884

2.355

2.826

3.297

3.768

4.239

4.710

5.652

6.594

7.536

8.478

9.420

2.355

2.944

3.533

4.121

4.710

5.299

5.888

7.065

8.243

9.420

10.598

11.775

3.140

3.925

4.710

5.495

6.280

7.065

7.850

9.42010.990

12.560

14.130

15.700

RECTANGULAR BAR

DIMENSION(mm)

INITWEIGHT(kg/m)

40x20

50x25

50x38

60x30

65x42

80x45100x150

120x55

140x60

160x65

180x70

200x75

220x80

240x85

260x90

280x95

NPU PROFILES

DIMENSION(mm)

THICKNESS(mm)

INITWEIGHT(kg/m)

5.00

5.00

5.00

6.00

5.50

6.006.00

7.00

7.00

7.50

8.00

8.50

9.00

9.50

10.00

10.00

2.87

3.86

5.59

5.07

7.09

8.6410.60

13.40

16.00

18.80

22.06

25.30

29.40

33.20

37.90

41.80

25 (25 x 25 x 3.0)

30 (30 x 30 x 3.0)

40 (40 x 40 x 4.0)

50 (50 x 50 x 5.0)

60 (60 x 60 x 6.0)

70 (70 x 70 x 7.0)

80 (80 x 80 x 8.0)

90 (90 x 90 x 9.0)

100 (100 x 100 x 10.0)120 (120 x 120 x 11.0)

150 (150 x 150 x 16.0)

ANGLES kg/m

1.12

1.36

2.42

3.77

5.42

7.38

9.66

12.20

15.1019.90

35.78

0.75

1

1.50

2

2.503

4

5

6

METAL SHEET

THICKNESS(mm)

WEIGHTOF 1 m2

5.830

7.850

11.800

15.700

19.60023.600

31.400

39.250

47.100

7

8

9

10

1112

13

14

15

THICKNESS(mm)

WEIGHTOF 1 m2

54.300

62.800

70.650

78.500

86.30094.200

102.000

109.900

117.700

(66)


8/8

LUBRICANTS USED FOR PUMP LUBRICATIONThere are two main lubrication types

1.Oil lubrication 2 . Grease lubrication

Lubrication type and grade of lubricant must be selected by considering the operating temperature.

Below given lubrication list is for information

Lubrication type Temperature limits Lubricant sample

1 Oil lubrication Bearing temperature more than 50 C Shell Tellus T68

( oil bath) Bearing temperature less than 50 C Shell Tellus T46

2 Grease lubrication Operating temperature -20 C - +135 C Shell Retinax HD2 or Mobil Mobilgrease XHP-222

CAUTION:First oil / grease change period must be determined according to operation conditions

For grease lubrication rubber free type grease must be used.

GENERAL TECHNICAL INFORMATION

Standard electric motor :

In general electric motors used for driving pumps are the motors complying with DIN, IEC, VDE and TSE standards they are 3 phase, 50 Hz,

F class insulated, IP 55, S1 duty class, Squirrel cage type, fan cooled asynchronous electric motors.

Starting type is in general DOL for up to 5,5 kW motors and Star/Delta for more than 7,5 kW electric motors.

CAUTION: For electric connection of submersible pumps refer to operator manual

FORMULAS FOR ELECTRIC MOTORS :

Starting method of the electric motor according to supply current and stator winding type.

L1 L2 L3 L1 L2 L3L1

L2 L3

L1 L2 L3

(67)

Supply

voltage

Stator winding type mentionon motor name plate

Current type

Direct current

Single phase

Three phase

Power inPower out

Continuous

operation Starting

Continuous

operation Starting

Direct

Direct

Direct

Direct or

out

out

out

out

out

out

pump table

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