Meech A70000, Operating Manual

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12
How to determine what size of PIPE you need for
compressed air lines:
TABLE 1: EQUIVALENT LENGTH OF PIPE LINES IN FEET
Don’t forget to include *PIPE FITTINGS in your final calculations
Your Air
Compressor’s
CFM
25
feet
50
feet
75
feet 100 feet 150 feet 200 feet 250 feet 300 feet
1 ½ ½ ½ ½ ½ ½ ½ ½
2 ½ ½ ½ ½ ½ ½ ½ ½
3 ½ ½ ½ ½ ½ ½ ½ ½
5 ½ ½ ½ ½ ½ ½ ½ ½
10 ½ ½ ½ ¾ ¾ ¾ ¾ ¾
15 ½ ¾ ¾ ¾ ¾ ¾ ¾ ¾
20 ¾ ¾ ¾ ¾ ¾ ¾ ¾ ¾
25 ¾ ¾ ¾ ¾ ¾ 1 1 1
30 ¾ ¾ ¾ ¾ 1 1 1 1
35 ¾ ¾ 1 1 1 1 1 1
40 ¾ 1 1 1 1 1 1 1
50 1 1 1 1 1 1 1 1
60 1 1 1 1 1 - 1/4 1 - 1/4 1 - 1/4 1 - 1/4
70 1 1 1 1 1 - 1/4 1 - 1/4 1 - 1/4 1 - 1/4
80 1 - 1/4 1 - 1/4 1 - 1/4 1 - 1/4 1 - 1/2 1 - 1/2 1 - 1/2 1 - 1/2
100 1 - 1/4 1 - 1/4 1 - 1/4 1 - 1/4 1 - 1/2 1 - 1/2 1 - 1/2 1 - 1/2
125 1 - 1/4 1 - 1/4 1 - 1/4 1 - 1/4 1 - 1/2 1 - 1/2 1 - 1/2 1 - 1/2
150 1 - 1/4 1 - 1/4 1 - 1/4 1 - 1/4 1 - 1/2 1 - 1/2 1 - 1/2 1 - 1/2
175 1 - 1/2 1 - 1/2 1 - 1/2 1 - 1/2 2 2 2 2
200 1 - 1/2 1 - 1/2 1 - 1/2 1 - 1/2 2 2 2 2
225 1 - 1/2 1 - 1/2 1 - 1/2 1 - 1/2 2 2 2 2
250 2 2 2 2 2 2 2 2
275 2 2 2 2 2 2 2 - 1/2 2 - 1/2
300 2 2 2 2 2 2 2 - 1/2 2 - 1/2
350 2 2 2 2 2 - 1/2 2 - 1/2 2 - 1/2 2 - 1/2
400 2 2 2 2 2 - 1/2 2 - 1/2 2 - 1/2 2 - 1/2
450 2 - 1/2 2 - 1/2 2 - 1/2 2 - 1/2 2 - 1/2 2 - 1/2 3 3
500 2 - 1/2 2 - 1/2 2 - 1/2 2 - 1/2 2 - 1/2 2 - 1/2 3 3
550 2 - 1/2 2 - 1/2 2 - 1/2 2 - 1/2 3 3 3 3
600 2 - 1/2 2 - 1/2 2 - 1/2 2 - 1/2 3 3 3 3
750 2 - 1/2 2 - 1/2 2 - 1/2 3 3 3 3 4
1000 3 3 3 3 3 3 4 4
TABLE 2: * EQUIVALENT LENGTH OF PIPE (FT.) for PIPE FITTINGS
Add these numbers for each pipe fitting to total length of straight pipe
Pipe
Size Long Rad, Ell or
run of tee
STD. Ell or Run of
reduced tee
Tee Thru
side outlet Globe Valve Gate Valve
½ 0.62 1.55 3.1 17.3 0.36
¾ 0.82 2.06 4.12 22.9 0.48
1 1.05 2.62 5.24 29.1 0.61
1 - 1/4 1.38 3.45 6.9 38.3 0.81
1 - 1/2 1.61 4.02 8.04 44.7 0.94
2 2.07 5.17 10.3 57.4 1.21
2 - 1/2 2.47 6.16 12.3 68.5 1.44
3 3.07 6.16 15.3 85.2 1.79
4 4.03 7.67 20.2 112 2.35