CLASS C PIPE DESIGNS WITH SINGLE SAMPLE HOLE SIZE (Inc. SAMPLING END HOLE)
Pipe
Length
(m)
80
70
60
50
40
30
20
10
X: No adequate or recommended single sample hole size design
Pipe
Length
(m)
X: No adequate or recommended single sample hole size design
Each
pipe
(m)
50
40
30
20
10
N200-102-01
AND 10m SPACING ‐ 2 PIPE (T‐FORM)
Number
Hole
of holes
size
(mm) (I/min)
X
‐
X
‐
6
3
5
3
4
3.5
3
4
2
5
1
6.5
CLASS B PIPE DESIGNS WITH SINGLE SAMPLE HOLE SIZE (Inc. SAMPLING END HOLE)
Number
Hole
End
of holes
size
hole
(mm) (mm) (I/min)
80
X
‐
70
6
4
60
6
4
50
5
5.5
40
4
6
30
3
6.5
20
2
6.5
10
X
‐
CLASS B PIPE DESIGNS WITH SINGLE SAMPLE HOLE SIZE (Inc. SAMPLING END HOLE)
AND 10m SPACING 2 PIPE (T‐FORM)
Number
Hole
of holes
size
(per pipe) (mm) (mm) (I/min)
3
5
3
4.5
3
4
2
5
1
6.5
Air
Flow
Average
flow
balance
sensitivity
(%/m)
‐
‐
‐
‐
45
0.8
1.17
44
0.87
0.97
46
0.89
0.79
46
0.93
0.98
46
0.96
0.66
44
1
1.31
AND 10m SPACING 1 PIPE
Air
Flow
flow
balance
sensitivity
‐
‐
‐
4
39
0.68
4
43
0.7
5.5
45
0.54
6
46
0.65
6.5
45
0.78
6.5
44
0.94
‐
‐
‐
End
Air
Flow
hole
flow
balance
5
45
0.84
4.5
46
0.89
4
46
0.93
5
46
0.96
6.5
44
1
13
Alarm
Fan
level
hole area
(mm
‐
‐
‐
‐
‐
‐
2
6
84.83
2
8
70.70
2
7
76.98
3
6
75.41
3
6
78.55
5
8
66.37
Average
Alarm
Fan Total hole
level
(%/m)
‐
‐
‐
0.40
1
10
0.39
1
10
0.34
1
8
118.81
0.40
2
8
113.11
0.30
2
8
0.33
3
10
‐
‐
‐
Average
Alarm
Fan
sensitivity
level
hole area
(%/m)
0.40
1
4
0.40
1
5
0.40
1
7
0.40
2
6
0.33
3
8
Total
2
)
‐
‐
area
(mm
2
)
‐
75.41
75.41
99.56
66.37
‐
Total
(mm
2
)
117.83
95.44
75.41
78.55
66.37
I56-6577-008