Instruction Manual

PAGE 49
Residential Water Systems
CentriPro
SCH 40 – PLASTIC PIPE: FRICTION LOSS (IN FEET OF HEAD) PER 100 FT.
GPM GPH
3
⁄
8
" ½" ¾" 1" 1¼" 1½" 2" 2½" 3" 4" 6" 8" 10"
ft. ft. ft. ft. ft. ft. ft. ft. ft. ft. ft. ft. ft.
1 60 4.25 1.38 .356 .11
2 120 15.13 4.83 1.21 .38 .10
3 180 31.97 9.96 2.51 .77 .21 .10
4 240 54.97 17.07 4.21 1.30 .35 .16
5 300 84.41 25.76 6.33 1.92 .51 .24
6 360 36.34 8.83 2.69 .71 .33 .10
8 480 63.71 15.18 4.58 1.19 .55 .17
10 600 97.52 25.98 6.88 1.78 .83 .25 .11
15 900 49.68 14.63 3.75 1.74 .52 .22
20 1,200 86.94 25.07 6.39 2.94 .86 .36 .13
25 1,500 38.41 9.71 4.44 1.29 .54 .19
30 1,800 13.62 6.26 1.81 .75 .26
35 2,100 18.17 8.37 2.42 1.00 .35 .09
40 2,400 23.55 10.70 3.11 1.28 .44 .12
45 2,700 29.44 13.46 3.84 1.54 .55 .15
50 3,000 16.45 4.67 1.93 .66 .17
60 3,600 23.48 6.60 2.71 .93 .25
70 4,200 8.83 3.66 1.24 .33
80 4,800 11.43 4.67 1.58 .41
90 5,400 14.26 5.82 1.98 .52
100 6,000 7.11 2.42 .63 .08
125 7,500 10.83 3.80 .95 .13
150 9,000 5.15 1.33 .18
175 10,500 6.90 1.78 .23
200 12,000 8.90 2.27 .30
250 15,000 3.36 .45 .12
300 18,000 4.85 .63 .17
350 21,000 6.53 .84 .22
400 24,000 1.08 .28
500 30,000 1.66 .42 .14
550 33,000 1.98 .50 .16
600 36,000 2.35 .59 .19
700 42,000 .79 .26
800 48,000 1.02 .33
900 54,000 1.27 .41
950 57,000 .46
1000 60,000 .50
NOTE: See page 5 for website addresses for pipe manufacturers – there are many types of new plastic pipe available now.
FRICTION LOSS
STORAGE OF WATER IN VARIOUS SIZES OF WELLS
D
2
= Gallons of Storage per Foot
24.5
Where: D = Inside diameter of well casing in inches
Examples:
2" Casing = .16 Gals. per ft. Storage 8" Casing = 2.6 Gals. per ft. Storage
3" Casing = .36 Gals. per ft. Storage 10" Casing = 4.07 Gals. per ft. Storage
4" Casing = .652 Gals. per ft. Storage 12" Casing = 5.87 Gals. per ft. Storage
5" Casing = 1.02 Gals. per ft. Storage 14" Casing = 7.99 Gals. per ft. Storage
6" Casing = 1.4 Gals. per ft. Storage 16" Casing = 10.44 Gals. per ft. Storage