Technical data

30
Compressed Air Applications Manual | Dimensioning
Nomogram
The nomogram offers an easy and fast
way for determining the correct pipe
dimensions.
Procedure:
1. Determine pipe length (m) A and flow
rate (m³/min) B and join by line 1.
2. Join pressure loss (bar) E and operat-
ing pressure (bar) D by line 2.
3. Join the two intersections of 1/C and
2/F by line 3.
4. The intersection of line 3 and G shows
the appropriate pipe dimension.
Example:
∆p = 0.03 bar
p = 6 bar
V = 4.5 m
3
/min
L = 120 m
Pipe d = 75
Nomogram for determining the diameter of BEKOFLOW
®
pipes
Network length
(m)
Frow rate
(m
3
/min)
Operating pressure
(bar)
Outside pipe diameter Pressure loss
(bar)
10
15
20
30
40
50
70
100
150
200
300
400
500
700
1000
3000
20
16
12
10
9
8
7
6
5
4
3
2
1
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0.09
0.08
0.07
0.06
0.05
0.04
0.03
0.02
0.01
12
16
20
25
32
40
50
63
75
90
110
125
160
200
250
0.6
0.8
1
2
3
4
6
10
15
20
30
40
50
60
80
100
200
300
600
1000
1500
1
2
3
A
C
B
F
E
D
G
8
.