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Pump Tanks Chapter 6: Appendix 24 of 36
Figure 3: Standard Pumps and Trim Based on Chiller Capacities
(Flow based on 2.4 gpm per ton)
American Standards
Capacity Trim Process Recirculating
Nominal Nominal flow size pump pump
refrigeration tons gallons inches hp hp
25 60 2½” 5 3
35 84 2½” 7½ 3
50 120 3” 7½ 5
60 144 3” 10 5
75 180 4” 10 5
90 216 4” 15 7½
100 240 4” 15 7½
125 300 4” 20 7½
155 372 6” 20 10
185 444 6” 25 10
220 528 6” 30 15
250 600 6” 30 15
310 744 6” 40 20
375 900 6” 50 20
Pump horsepower 1½ 3 5 7½ 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 2½ 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
chilled water, Kcal/hr liters mm dia. hp kW hp kW
75,600 227 64 mm 5 3.73 3 2.24
105,840 318 64 mm 7½ 5.59 3 2.24
151,200 454 76 mm 7½ 5.59 5 3.73
181,440 545 76 mm 10 7.50 5 3.73
226,800 681 102 mm 10 7.50 5 3.73
272,160 818 102 mm 15 11.19 7½ 5.59
302,400 908 102 mm 15 11.19 7½ 5.59
378,000 1,136 102 mm 20 14.91 7½ 5.59
468,720 1,408 152 mm 20 14.91 10 7.50
559,440 1,680 152 mm 25 18.64 10 7.50
665,280 1,998 152 mm 30 22.37 15 11.19
756,000 2,271 152 mm 30 22.37 15 11.19
937,440 2,816 152 mm 40 29.93 20 14.91
1,134,000 3,407 152 mm 50 37.29 20 14.91
Pump horsepower/kW 1½/1.1
2
3/2.24 5/3.73 7½/5.5
9
10/7.5 15/11.1
9
20/14.9
1
25/18.6
4
30/22.3
7
40/29.9
3
50/37.2
9
60/44.7
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 (mm) 51 mm 64 mm 76 mm 102 mm 152 mm 203 mm
Maximum flow (lpm) 189 340 624 1,211 3,406 7,570
Shipping weight (Kg) 12 16 23 35 55 75