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Hydraulic Data

hydraulic dataWater flow is restricted by the open area of grate. For the ACO Wexel range, there is no further reduction of flow from the underlying bodies. The head of water creates pressure and is also part of the calculation.

The table below shows the flow rate based on the diagram shown right.

Note that fixed or removable strainers will reduce the flow rates.

Floor Drains - Push-fit
  Part No. Intake area
(mm2)
Based on 20mm
head of water (H)
Based on 30mm
head of water (H)
Based on 40mm
head of water (H)
Based on 50mm
head of water (H)
round grate 141855
141856
141857
141958
141858
2,404
5,503
4,173
N/A
6,901
0.98
2.24
1.70
N/A
2.81
1.20
2.74
2.08
N/A
3.44
1.38
3.17
2.40
N/A
3.97
1.55
3.54
2.69
N/A
4.44
square grate 141859
141860
141861
2,919
7,216
13,734
1.19
2.94
5.59
1.46
3.60
6.85
1.68
4.16
7.91
1.88
4.65
8.84
compact bucket trap 141969
141970
141971
5,503
7,216
13,734
2.24
2.94
5.59
2.74
3.60
6.85
3.17
4.16
7.91
3.54
4.65
8.84

Floor Drains - Full bodied
  Part No. Intake area
(mm2)
Based on 20mm
head of water (H)
Based on 30mm
head of water (H)
Based on 40mm
head of water (H)
Based on 50mm
head of water (H)
utility round 141870
141871
141872
141873
5,503
11,199
4,173
6,901
2.24
4.56
1.70
2.81
2.74
5.58
2.08
3.44
3.17
6.45
2.40
3.97
3.54
7.21
2.69
4.44
utility square 141874
141875
7,216
13,734
2.94
5.59
3.60
6.85
4.16
7.91
4.16
7.91
short round grate 141862
141863
141864
141865
141866
2,404
5,503
11,199
4,173
6,901
0.98
2.24
4.56
1.70
2.81
1.20
2.74
5.58
2.08
3.44
1.38
3.17
6.45
2.40
3.97
1.55
3.54
7.21
2.69
4.44
short square grate 141867
141868
141869
2,919
7,216
5,503
1.19
2.94
2.24
1.46
3.60
2.74
1.68
4.16
3.17
1.88
4.65
3.54
deep round 141876
141877
141878
141879
5,503
11,199
4,173
6,901
2.24
4.56
1.70
2.81
2.74
5.58
2.08
3.44
3.17
6.45
2.40
3.97
3.54
7.21
2.69
4.44
deep square 141880
141881
141882
7,216
13,734
28,310
2.94
5.59
11.53
3.60
6.85
14.12
4.16
7.91
16.30
4.65
8.84
18.23
puddle flange round 141883
141884
141885
141886
141887
141888
141889
141890
5,503
11,199
4,173
6,901
5,503
11,199
4,173
6,901
2.24
4.56
1.70
2.81
2.24
4.56
1.70
2.81
2.74
5.58
2.08
3.44
2.74
5.58
2.08
3.44
3.17
6.45
2.40
3.97
3.17
6.45
2.40
3.97
3.54
7.21
2.69
4.44
3.54
7.21
2.69
4.44
puddle flange square 141891
141892
141893
141894
141895
141896
7,216
13,734
28,310
7,216
13,734
16,971
2.94
5.59
11.53
2.94
5.59
6.91
3.60
6.85
14.12
3.60
6.85
8.46
4.16
7.91
16.30
4.16
7.91
9.77
4.65
8.84
18.23
4.65
8.84
10.93
horizontal round 141897
141898
141899
141900
141901
2,404
5,503
11,199
4,173
6,901
0.98
2.24
4.56
1.70
2.81
1.20
2.74
5.58
2.08
3.44
1.38
3.17
6.45
2.40
3.97
1.55
3.54
7.21
2.69
4.44
horizontal square 141902
141903
141904
2,123
7,216
13,734
0.86
2.94
5.59
1.06
3.60
6.85
1.22
4.16
7.91
1.37
4.65
8.84

Roof Drains
  Part No. Intake area
(mm2)
Based on 20mm
head of water (H)
Based on 30mm
head of water (H)
Based on 40mm
head of water (H)
Based on 50mm
head of water (H)
flat grate 141905
141906
141907
141908
141909
141910
141911
141912
141913
141914
15,180
15,858
22,255
15,180
15,858
16,971
15,180
15,858
15,180
15,858
6.18
6.46
9.06
6.18
6.46
6.91
6.18
6.46
6.18
6.46
7.57
7.91
11.10
7.57
7.91
8.46
7.57
7.91
7.57
7.91
8.74
9.13
12.82
8.74
9.13
9.77
8.74
9.13
8.74
9.13
9.77
10.21
14.33
9.77
10.21
10.93
9.77
10.21
9.77
10.21
dome grate 141915
141916
141917
141918
36,576
36,576
36,576
36,576
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