NSW
02 9644 7144
QLD
07 3252 5366
VIC
03 9544 2211
WA
08 9349 2972
Sampling holes for planning with “ASD PipeFlow” calculation
The tables below show the corresponding hole diameters for the numbers in
Fig. 4
depending on the number of sampling holes per sampling
branch.
I-shaped sampling pipe
Number of sam-
pling holes in the
sampling branch
Hole diameter in mm for the sampling hole number as of ASD
1
2
3
4
5
6
7
8
9
10
11
12
1
5.0
2
4.0
5.0
3
4.0
4.0
5.0
4
3.5
3.5
4.0
5.0
5
3.5
3.5
3.5
4.0
5.0
6
2.5
2.5
2.5
2.5
3.0
5.0
7
2.5
2.5
2.5
2.5
2.5
2.5
5.0
8
2.5
2.5
2.5
2.5
2.5
2.5
2.5
5.0
9
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
5.0
10
2.0
2.0
2.0
2.5
2.5
2.5
2.5
2.5
3.0
7.0
11
2.0
2.0
2.0
2.0
2.5
2.5
2.5
2.5
2.5
4.0
7.0
12
2.0
2.0
2.0
2.0
2.0
2.0
2.5
2.5
2.5
2.5
4.0
7.0
U/T-shaped sampling pipes
Number of sam-
pling holes per
sampling branch
Hole diameter in mm for the sampling
hole number as of ASD
1
2
3
4
5
6
7
8
1
5.0
2
4.0 5.0
3
4.0 4.0 5.0
4
4.0 4.0 4.0 5.0
5
4.0 4.0 4.5 5.0 6.5
6
3.0 3.0 3.5 3.5 4.0 6.5
7
2.5 3.0 3.0 3.5 3.5 4.0 6.5
8
2.5 2.5 3.0 3.0 3.5 3.5 3.5 7.0
H/E-shaped sampling pipes
Number of sam-
pling holes per
sampling branch
Hole diameter in mm for the sampling
hole number as of ASD
1
2
3
4
5
1
5.0
2
4.0
5.0
3
4.0
4.0
5.5
4
3.0
3.0
3.5
5.5
5 (E-shaped only)
2.5
3.0
3.0
3.0
6.0
Fig. 4 Size of sampling holes
I-shaped
U/T-shaped
H-shaped
E-shaped
1
1
1
2
2
2
3
3
3
4
4
4
5
5
5
4
4
3
3
2
2
1
1
1
1
2
2
3
3
4
4
1
2
3
4
5
6
7
8
9
10
11 12
8
8
7
7
6
6
5
5
4
4
3
3
2
2
1
1
1 to 12 = Sampling hole number
