Amcot ST Series - Inlet Water Pressure

AMCOT ST SERIES FIBERGLASS COOLING TOWER
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GENERAL MAINTENANCE
Inlet Water Pressure
Your Amcot ST Series tower will perform best when the proper pump selection is made. When
selecting your circulating pump, it is critical to ensure that the tower pump head (or inlet PSI) is
incorporated into your pump’s total PSI or TDH (Total Dynamic Head) calculation.
Improper pump selection can result in flow problems through your system which can impact
performance and capacity of the tower. Inlet water pressure to the tower is considered to be adequate
when water is seen coming out of all orifices in the spray arms and when the spray arms are within the
recommended rotation speed shown in the chart down below.
Recommended Pump Head/PSI:
MODEL
PUMP HEAD (FT)
INLET PSI
MODEL
PUMP HEAD (FT)
INLET PSI
ST-3
5
2.17
ST-70
6.6
2.86
ST-H-3
5
2.17
ST-80
6.6
2.86
ST-5
5
2.17
ST-100
8.2
3.55
ST-H-5
5
2.17
ST-125
10
4.34
ST-8
5
2.17
ST-150
10
4.34
ST-H-8
5
2.17
ST-175
11
4.77
ST-10
5
2.17
ST-200
11
4.77
ST-H-10
5
2.17
ST-225
11
4.77
ST-15
5.3
2.30
ST-250
12
5.20
ST-H-15
5.3
2.30
ST-300
12
5.20
ST-20-1
5.6
2.43
ST-350
13.2
5.72
ST-H-20-1
5.6
2.43
ST-400
13.2
5.72
ST-20-3
5.6
2.43
ST-500
13.2
5.72
ST-H-20-3
5.6
2.43
ST-600
16.4
7.11
ST-25
5.6
2.43
ST-700
18.2
7.89
ST-30
6
2.60
ST-800
20
8.67
ST-40
6.6
2.86
ST-1000
20
8.67
ST-50
6.6
2.86
ST-1250
21.3
9.23
ST-60
6.6
2.86
ST-1500
23
9.97