[email protected] 01603 488700 - … · in-situ casting with concrete hardstandings for heavy industrial application. Achieves minimum ... The FORMA lid has been designed for use
Aug 25, 2018
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[email protected] 488700www.althon.co.uk
3www.althon.co.uk
High Capicity ChannelDrainage System
High Capicity ChannelDrainage System
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High Capicity ChannelDrainage System
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High Capicity ChannelDrainage System
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High Capicity ChannelDrainage System
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573 NOHTLA052 NOHTLA051 NOHTLARainfall rate
Channelgradient
Flat/0%
1:500/0.20%
1:400/0.25%
1:300/0.33%
1:200/0.50%
1:100/0.10%
1:50/2%
1:20/5%
Flow rate l /s
25
28
30
33
40
60
86
140
25mm/hr
Area drained m2
3350
4032
4320
4752
5760
8640
12384
20160
50mm/hr
Area drained m2
1750
2016
2160
2376
2880
4320
6192
10080
75mm/hr
Area drained m2
1150
1344
1440
1584
1920
2880
4128
6720
100mm/hr
Area drained m2
850
1008
1080
1188
1440
2160
3096
5040
Flow rate l /s
40
60
71
75
95
140
190
300
25mm/hr
Area drained m2
5200
8640
10224
10800
13680
20160
27360
43200
50mm/hr
Area drained m2
2600
4320
5112
5400
6840
10080
13680
21600
75mm/hr
Area drained m2
1700
2880
3408
3600
4560
6720
9120
14400
100mm/hr
Area drained m2
1250
2160
2556
2700
3420
5040
6840
10800
Flow rate l /s
100
180
195
220
250
380
520
850
25mm/hr
Area drained m2
14000
25920
28080
31680
36000
54720
74880
122400
50mm/hr
Area drained m2
7500
12960
14040
15840
18000
27360
37440
61200
75mm/hr
Area drained m2
5000
8640
9360
10560
12000
18240
24960
40800
100mm/hr
Area drained m2
3400
6480
7020
7920
9000
13680
18720
30600
006 NOHTLA525 NOHTLARainfall rate
Channelgradient
Flat/0%
1:500/0.20%
1:400/0.25%
1:300/0.33%
1:200/0.50%
1:100/0.10%
1:50/2%
1:20/5%
Flow rate l /s
190
360
400
450
550
800
1200
1750
25mm/hr
Area drained Ha
2.40
5.18
5.76
6.48
7.92
11.52
17.28
25.20
50mm/hr
Area drained Ha
1.40
2.59
2.88
3.24
3.96
5.76
8.64
12.60
75mm/hr
Area drained Ha
0.90
1.73
1.92
2.16
2.64
3.84
5.76
8.40
100mm/hr
Area drained Ha
0.70
1.30
1.44
1.62
1.98
2.88
4.32
6.30
Flow rate l /s
290
460
570
610
750
1200
1600
2500
25mm/hr
Area drained Ha
3.50
6.62
8.21
8.78
10.80
17.28
23.04
36.00
50mm/hr
Area drained Ha
2.20
3.31
4.10
4.39
5.40
8.64
11.52
18.00
75mm/hr
Area drained Ha
1.40
2.21
2.74
2.93
3.60
5.76
7.68
12.00
100mm/hr
Area drained Ha
1.05
1.66
2.05
2.20
2.70
4.32
5.76
9.00
Storage capacity ofchannel to underside of
lid for attenuation
Channel size Capacity l /m
150 51
250 87
375 184
525 325
600 412
13www.althon.co.uk
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