Appendix B - Pump Sizing; Pump Sizing Calculation Tables - FAFCO Connected Tube CT Series Installation Manual

APPENDIX B — Pump Sizing

Pump Sizing Calculation Tables

Table 1: Head Loss Calculation Table for 2" PVC Fittings
Fitting Used
45° Elbow
90° Elbow
Sweep
Tee's
Total Fitting Equivalent Length (ft)
Feet of Straight Piping Used (ft)
Equivalent Sys Straight Pipe Length (ft)
Panel Eq. Head
Loss (ft)
System Dynamic
Head Loss
Calculation
Vertical Head Loss (ft)
Head Loss in other Pool Equipment (ft)
Total Head Loss (ft)
Total Head Loss (psi)
Table 2: Head Loss at Flow Rates in 2" PVC
Flow Rate (GPM) Head Loss/ft Piping (ft) Flow Rate (GPM) Head Loss/ft Piping (ft)
0
4.5
8
10
15
20
25
30
35
40
2" PVC Acceptable for Flow Rate 2" PVC Not Recommended for Flow Rate
Equivalent Pipe Length
Head Loss of Fitting (ft)
Box A
2.7
Box B
8.5
Box C
3.6
Box D
12
# Panels on Roof/# Rows
/
Box P
System Flow Rate (GPM)
2
(#Panels*0.1GPM/ft ea.)
Box S
0.000
0.0005
0.001
0.002
0.004
0.008
0.010
0.017
0.018
0.028
Quantity Used
Box E
Box F
Box G
Box H
Box M
Box N
Box O
Average Bank Size
Box Q
(Box P result)
Head Loss/ft Piping (ft)
(from System Flow Rate)
Box T (Table A2 from box S)
Box V
Box W
Box X
Box Y
45
50
55
60
65
70
75
80
85
90
Totals
Box I
Box J
Box K
Box L (D*H)
(I+J+K+L)
(total pipe length used)
(M+N)
Pressure Drop (ft)
Box R
(Box Q*5.1 ft ea. panel)
Total Dynamic Head Loss (ft)
Box U
(Pump to top header height)
(Losses for filter, heater, etc.)
(R+U+V+W)
(X*0.43)
0.036
0.043
0.053
0.060
0.070
0.079
0.091
0.102
0.114
0.126
®
(A*E)
(B*F)
(C*G)
(T*O)
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