Figure 2: Standard Pumps and Trim Based on Cooling Tower Capacities

(Flow Based on 3 gpm per Ton)

American Standards

Capacity

 

Trim

Process

Recirculating

Nominal

 

Nominal flow

size

pump

pump

cooling tower tons

 

gallons

inches

hp

hp

20

 

60

2½”

5

3

30

 

90

2½”

3

40

 

120

3”

5

50

 

150

3”

10

5

60

 

180

4”

10

5

75

 

225

4”

15

80

 

240

4”

15

100

 

300

4”

20

125

 

375

6”

20

10

150

 

450

6”

25

10

175

 

525

6”

30

15

200

 

600

6”

30

15

250

 

750

6”

40

20

300

 

900

6”

50

20

Pump horsepower

3

5

10

15

20

25

30

40

50

60

Amp draw 460/3/60

2.6

4.8

7.6

11

14

21

27

34

40

52

65

77

Shipping weight (lbs.) P1

95

115

125

165

180

300

310

400

465

710

730

P2

60

90

115

275

320

425

510

630

670

Trim size (inches)

2

3

4

6

8

Maximum flow (gpm)

50

90

160

320

900

2,000

Shipping weight (lbs.)

25

35

50

75

120

165

Metric Standards

Capacity

 

Trim

Process

Recirculating

Nominal refrigeration

Nominal flow

size

 

pump

pump

 

Tower water, Kcal/hr

liters

mm Dia.

hp

 

kW

hp

 

kW

75,600

227

64

5

 

3.73

3

 

2.24

113,400

341

64

 

5.59

3

 

2.24

151,200

454

76

 

5.59

5

 

3.73

189,000

568

76

10

 

7.50

5

 

3.73

226,800

682

102

10

 

7.50

5

 

3.73

283,500

852

102

15

 

11.19

 

5.59

302,400

909

102

15

 

11.19

 

5.59

378,000

1,135

102

20

 

14.91

 

5.59

472,500

1,419

152

20

 

14.91

10

 

7.50

567,000

1,703

152

25

 

18.64

10

 

7.50

661,500

1,987

152

30

 

22.37

15

 

11.19

756,000

2,271

152

30

 

22.37

15

 

11.19

945,000

2,839

152

40

 

29.93

20

 

14.91

1,134,000

3,406

152

50

 

37.29

20

 

14.91

Pump

1½/1.12

3/2.24

5/3.73

7½/5.59

10/7.5

15/11.19

20/14.91

25/18.64

30/22.37

40/29.93

50/37.29

60/44.7

horsepower/kW

 

 

 

 

 

 

 

 

 

 

 

4

Amp draw 460/3/60

2.6

4.8

7.6

11

14

21

27

34

40

52

65

77

Ship weight (Kg) P1

44

53

57

75

82

137

141

182

211

323

332

P2

28

41

53

125

146

193

232

286

304

Trim size (inches)

2

3

4

6

8

Maximum flow (lpm)

189

340

624

1,211

3,406

7,570

Shipping weight (Kg)

12

16

23

35

55

75

Pump Tanks

Chapter 6: Appendix

22 of 36

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Image 22
Sterling A0552321 specifications Standard Pumps and Trim Based on Cooling Tower Capacities

A0552321 specifications

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