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Pump Tanks Chapter 6: Appendix 21 of 36
6-3 Drawings and Specifications
Cooling Tower Water Pump Tanks
American Standards
Maximum Return Tank weight
tower tons c Capacity Maximum water &
overflow
Dimensions (less pumps)
Model Single Dual gallons pumps/ connections inches pounds
number well well Overflow Operating ledge Inches L W H Shipping Operating
CT140 (D) 25 13 125 100 3 3” NPT 72 36 40 600 1,800
PT390 (D) d
78 39 390 350 3
ℜ 5” CLMP
95 56 64 500 3,500
CT480 (D) 90 45 450 360 3 4” FLG 102 49.5 52 2,000 6,000
CT720 (D) 135 68 675 540 4 4” FLG 114 73.5 52 2,600 8,600
CT1080 (D) 206 103 1,030 900 4 6” FLG 114 73.5 77 3,400 12,400
CT1620 (D) 310 155 1,550 1,345 4 6” FLG 138 73.5 77 4,000 17,500
CT2040 (D) 382 191 1,910 1,685 5 6” FLG 150 91 78 5,000 22,100
CT2700 (D) 509 225 2,545 2,245 6 6” FLG 150 121 78 6,000 28,500
CT3670 (D) 698 349 3,490 3,140 6 6” FLG 162 121 90 7,000 37,600
CT5130 (D) 978 489 4,890 4,400 7
ℜ 8” FLG
162 169 92 7,800 50,700
CT6285 (D) 1,257 629 6,285 5,655 9
ℜ 10” FLG
162 217 94 14,700 69,100
c Based on three (3) gpm per ton and towers being within 25 feet of the tank.
d “P” signifies molded polyethylene tank.
ℜ PT390 = 6” CLMP, CT5130 = 6” FLG, CT6285 = 8” FLG overflow connections only.
Metric Standards
Maximum Return Tank weight
tower cooling c Capacity Maximum water &
overflow
Dimensions (less pumps)
Model Single Dual liters pumps/ connections cm Kg
number well well Overflow Operating ledge mm L W H Shipping Operating
CT140 (D) 94,615 49,200 473 378 3 76 mm 183 91 102 273 817
PT390 (D) d
295,200 147,599 1,476 1,325 3
ℜ 127 mm
241 142 162 227 1,588
CT480 (D) 340,619 170,303 1,703 1,362 3 102 mm 259 126 132 908 2,722
CT720 (D) 510,921 257,353 2,555 2,044 4 102 mm 289 187 132 1,180 3,901
CT1080 (D) 779,628 389,814 3,899 3,407 4 152 mm 289 187 195 1,543 5,625
CT1620 (D) 1,173,195 586,613 5,867 5,091 4 152 mm 350 187 195 1,815 7,938
CT2040 (D) 1,445,717 722,859 7,229 6,378 5 152 mm 381 231 198 2,268 10,025
CT2700 (D) 1,926,361 965,073 9,633 8,497 6 152 mm 381 307 198 2,722 12,928
CT3670 (D) 2,641,651 1,320,825 13,209 11,885 6 152 mm 411 307 229 3,176 17,056
CT5130 (D) 3,701,339 1,850,669 18,509 16,654 7
ℜ 203 mm
411 429 234 3,539 22,998
CT6285 (D) 4,757,242 2,380,513 23,789 21,404 9
ℜ 254 mm
411 551 239 6,668 31,344
c In Kcal/hr, calculated for cooling tower water, based on 3 lpm per 1,000 Kcal/hr and towers being within eight (8) meters of the
tank.
d “P” signifies molded polyethylene tank.
ℜ PT390 = 152mm, CT5130 = 152mm, CT6285 = 203mm overflow connections only.
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