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APPENDIX A
Unit Pressure Drop Curves, 30RAP010-060
50
1
2
5
4
3
40
45
6
30
35
rop (ft wg)
20
25
a
ter Pressure D
10
15
W
a
0
5
0
10
20
30
40
50
60
70
80
90
100
0
10
20
30
40
50
60
70
80
90
100
GPM
20
25
30
35
40
45
50
a
ter Pressure Drop (ft wg)
11
10
9
8
7
12
0
5
10
15
0 20 40 60 80 100 120 140 160
W
a
GPM
NOTES:
1. Use the following formula to convert feet of water to psig:
ft of water (.4335) = psig
2. Use the following formula to convert psig to feet of water:
psig (2.306) = ft of water
LEGEND
1 — 30RAP010 4 — 30RAP020 7 — 30RAP035 10 — 30RAP050
2 — 30RAP015 5 — 30RAP025 8 — 30RAP040 11 — 30RAP055
3 — 30RAP018 6 — 30RAP030 9 — 30RAP045 12 — 30RAP060
UNITS WITHOUT HYDRONIC PACKAGE (English)