Sun Pumps SPB 10-16C-1.0 - Manual (Page 8)

HOSE FRICTION LOSS
Pressure drop in PSI per 100 ft of hose
Water with typical water flow rates.
Flow Hose Inside Diameters, Inches
Gal/Min. ¼ 5/16 3/8 ½ 5/8 ¾ 1”
0.5 16 5 2
1.0 54 20 7 2
2.0 180 60 25 6 2
3.0 380 120 50 13 4 2
4.0 220 90 24 7 3
5.0 320 130 34 10 4
6.0 220 52 16 7 1
8.0 300 80 25 10 2
10 450 120 38 14 3
15 900 250 80 30 7
20 1600 400 121 50 12
25 650 200 76 19
30 250 96 24
40 410 162 42
50 600 235 62
60 370 93
*At a fixed rate with a given size hose, the pressure drop across a given hose length will be
directly proportional. A 50 ft hose will exhibit one-half the pressure drop of a 100 ft hose.
Above values shown are valid at all pressure levels.
WATER LINE PRESSURE LOSS
Pressure Drop in PSI Per 100 Feet
Water Steel Pipe-Nominal Dia. Brass Pipe-Nominal Dia Copper Tubing O.D.
Type L
GPM ¼ 3/8 ½ ¾ 1 1 ¼ 1 ½ ¼ 3/8 ½ ¾ 1 1 ¼ 1 ½ ¼ 3/8 ½ 5/8 ¾
7/8
1 8.5 1.9 6.0 1.6 120 13 2.9 1.0
2 30 7.0 2.1 20 5.6 1.8 400 45 10 3.4 1.3
3 60 14 4.5 1.1 40 11 3.6 94 20 6.7 2.6
5 150 36 12 2.8 100 28 9.0 2.2 230 50 17 6.1
3.0
8 330 86 28 6.7 1.9 220 62 21 5.2 1.6 500 120 40 15
6.5
10 520 130 43 10 3.0 320 90 30 7.8 2.4 180 56 22
10
15 270 90 21 6.2 1.6 190 62 16 5.0 1.5 120 44
20
25 670 240 56 16 4.2 2.0 470 150 40 12 3.8 1.7 330 110
50
40 66 17 8.0 39 11 5.0 550 200
88
60 37 17 23 11
80 52 29 40 19
100 210 107 48 61 28