FAN DUTY : 1.269 m³/s Item Description Size / Quantity Unit App. Pressure Drop (Pascal) Total App. Pressure Drop (Pascal) 1 Fume Hood Total Pressure Drop 1 No. 500 500 2 Phoenix Flow Control Valve 1 No: 250 250 3 Manual/ Motorised Volume Control Dampers 1 No. 30 30 4 Back draft damper 1 No. 35 35 5 Sound Attenuator 1 No. 80 80 6 Approximate Ducting Length,0.37 Pascal per Metre 3.5 m. 0.37 Pascal per Metre 1.3 7 Approximate Ducting Length, 1.93 Pascal per Metre 14.2 m 1.93 Pascal per Metre 27.5 8 Approximate Ducting Length, 2.51 Pascal per Metre ( horizontal 87+35+31.5 ) 153.5 m 2.51 Pascal per Metre 385.3 9 Approximate Ducting Length, 2.51 Pascal per Metre ( vertical riser ) 48 m 2.51 Pascal per Metre 120 10 Approximate Duct Fittings 20 % of Duct pressure drop 106.8 11 Duct & Fittings safety factor 10 % safety factor 153.60 1689.50 Static Pressure Calculations H-M2-45-24-HDE-20 Exhaust of Contaminated Lab fume air to outside. Total ESP For the fan
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FAN DUTY : 1.269 m³/s
Item Description Size / QuantityUnit App. Pressure Drop
(Pascal)
Total App. Pressure
Drop (Pascal)
1 Fume Hood Total Pressure Drop 1 No. 500 500
2 Phoenix Flow Control Valve 1 No: 250 250
3 Manual/ Motorised Volume Control Dampers 1 No. 30 30
4 Back draft damper 1 No. 35 35
5 Sound Attenuator 1 No. 80 80
6 Approximate Ducting Length,0.37 Pascal per Metre 3.5 m. 0.37 Pascal per Metre 1.3
7Approximate Ducting Length, 1.93 Pascal per
Metre14.2 m 1.93 Pascal per Metre 27.5
8Approximate Ducting Length, 2.51 Pascal per
Metre ( horizontal 87+35+31.5 )153.5 m 2.51 Pascal per Metre 385.3
9Approximate Ducting Length, 2.51 Pascal per
Metre ( vertical riser )48 m 2.51 Pascal per Metre 120
10 Approximate Duct Fittings 20 % of Duct pressure drop 106.8
11 Duct & Fittings safety factor 10 % safety factor 153.60
1689.50
Static Pressure Calculations
H-M2-45-24-HDE-20
Exhaust of Contaminated Lab fume air to outside.
Total ESP For the fan
FAN DUTY : 0.741 m³/s
Item Description Size / QuantityUnit App. Pressure Drop
(Pascal)
Total App. Pressure Drop
(Pascal)
1 Fume Hood Total Pressure Drop 1 No. 500 500
3 Phoenix Flow Control Valve 1 No: 250 250
3Manual/ Motorised Volume Control
Dampers1 No. 30 30
4 Back draft damper 1 No. 35 35
5 Sound Attenuator 1 No. 80 80
6Approximate Ducting Length,0.54
Pascal per Metre (horizontal)25.2 m. 0.54 Pascal per Metre 13.6
7Approximate Ducting Length, 0.19
Pascal per Metre (horizontal )8.5 m 0.19 Pascal per Metre 1.6
8Approximate Ducting Length, 0.49
Pascal per Metre ( horizontal )4.5 m 0.49 Pascal per Metre 2.2
9Approximate Ducting Length, 0.91
Pascal per Metre ( horizontal )60 m 0.91 Pascal per Metre 54.6
10Approximate Ducting Length, 0.91
Pascal per Metre ( vertical )25 m 0.91 Pascal per Metre 22.8
11Approximate Ducting Length, 0.91
Pascal per Metre ( horizontal )67 m 0.91 Pascal per Metre 61
Approximate Ducting Length, 0.91
Pascal per Metre ( horizontal )13 m 0.91 Pascal per Metre 11.8
12 Approximate Duct Fittings 20 % of Duct pressure drop 36.2
13 Duct & Fittings safety factor 10 % safety factor 109.80
1208.6
H-M2-45-24-HDE-15
Static Pressure Calculations
Exhaust of Contaminated Lab fume air to outside.
Total ESP For the fan
FAN DUTY : 0.382 m³/s
Item Description Size / Quantity
Unit App.
Pressure Drop
(Pascal)
Total App. Pressure
Drop (Pascal)
1Fume Hood Total Pressure
Drop1 No. 500 500
3Phoenix Flow Control
Valve1 No: 250 250
3Manual/ Motorised Volume
Control Dampers1 No. 30 30
4 Back draft damper 1 No. 35 35
5 Sound Attenuator 1 No. 80 80
6
Approximate Ducting
Length, 2.69 Pascal per
Metre (horizontal)
58 m.2.69 Pascal per
Metre156
7
Approximate Ducting
Length, 2.69 Pascal per
Metre (vertical )
25 m2.69 Pascal per
Metre67.3
8
Approximate Ducting
Length, 2.69 Pascal per
Metre ( horizontal )
20 m2.69 Pascal per
Metre53.8
9 Approximate Duct Fittings20 % of Duct
pressure drop55.4
11Duct & Fittings safety
factor10 % safety factor 122.70
1350.2
H-M2-45-24-HDE-01
Static Pressure Calculations
Exhaust of Contaminated Lab fume air to outside.
Total ESP For the fan
FAN DUTY : 0.382 m³/s
Item Description Size / Quantity
Unit App.
Pressure Drop
(Pascal)
Total App. Pressure
Drop (Pascal)
1Fume Hood Total Pressure
Drop1 No. 500 500
3Phoenix Flow Control
Valve1 No: 250 250
3Manual/ Motorised
Volume Control Dampers1 No. 30 30
4 Back draft damper 1 No. 35 35
5 Sound Attenuator 1 No. 80 80
6
Approximate Ducting
Length, 2.69 Pascal per
Metre (horizontal)
62 m.2.69 Pascal per
Metre166.8
7
Approximate Ducting
Length, 2.69 Pascal per
Metre (vertical )
25 m2.69 Pascal per
Metre67.3
8
Approximate Ducting
Length, 2.69 Pascal per
Metre ( horizontal )
22 m2.69 Pascal per
Metre59.2
9 Approximate Duct Fittings20 % of Duct
pressure drop58.7
10Duct & Fittings safety
factor10 % safety factor 124.70
1371.7
H-M2-45-24-HDE-02
Static Pressure Calculations
Exhaust of Contaminated Lab fume air to outside.
Total ESP For the fan
FAN DUTY : 0.382 m³/s
Item Description Size / Quantity
Unit App.
Pressure Drop
(Pascal)
Total App. Pressure
Drop (Pascal)
1Fume Hood Total Pressure
Drop1 No. 500 500
3Phoenix Flow Control
Valve1 No: 250 250
3Manual/ Motorised Volume
Control Dampers1 No. 30 30
4 Back draft damper 1 No. 35 35
5 Sound Attenuator 1 No. 80 80
6
Approximate Ducting
Length, 2.69 Pascal per
Metre (horizontal)
20 m.2.69 Pascal per
Metre53.8
7
Approximate Ducting
Length, 2.69 Pascal per
Metre (vertical )
25 m2.69 Pascal per
Metre67.3
8
Approximate Ducting
Length, 2.69 Pascal per
Metre ( horizontal )
38 m2.69 Pascal per
Metre102.2
9 Approximate Duct Fittings20 % of Duct
pressure drop44.7
10Duct & Fittings safety
factor10 % safety factor 116.30
1279.3
H-M2-45-24-HDE-04
Static Pressure Calculations
Exhaust of Contaminated Lab fume air to outside.
Total ESP For the fan
FAN DUTY : 0.382 m³/s
Item Description Size / Quantity
Unit App.
Pressure Drop
(Pascal)
Total App. Pressure
Drop (Pascal)
1Fume Hood Total Pressure
Drop1 No. 500 500
3Phoenix Flow Control
Valve1 No: 250 250
3Manual/ Motorised
Volume Control Dampers1 No. 30 30
4 Back draft damper 1 No. 35 35
5 Sound Attenuator 1 No. 80 80
6
Approximate Ducting
Length, 2.69 Pascal per
Metre (horizontal)
30 m.2.69 Pascal per
Metre80.7
7
Approximate Ducting
Length, 2.69 Pascal per
Metre (vertical )
25 m2.69 Pascal per
Metre67.3
8
Approximate Ducting
Length, 2.69 Pascal per
Metre ( horizontal )
49 m2.69 Pascal per
Metre131.8
9 Approximate Duct Fittings20 % of Duct
pressure drop55.9
10Duct & Fittings safety
factor10 % safety factor 122.40
1353.1
H-M2-45-24-HDE-05
Static Pressure Calculations
Exhaust of Contaminated Lab fume air to outside.
Total ESP For the fan
FAN DUTY : 0.382 m³/s
Item Description Size / Quantity
Unit App.
Pressure Drop
(Pascal)
Total App. Pressure
Drop (Pascal)
1Fume Hood Total Pressure
Drop1 No. 500 500
3Phoenix Flow Control
Valve1 No: 250 250
3Manual/ Motorised
Volume Control Dampers1 No. 30 30
4 Back draft damper 1 No. 35 35
5 Sound Attenuator 1 No. 80 80
6
Approximate Ducting
Length, 2.69 Pascal per
Metre (horizontal)
30 m.2.69 Pascal per
Metre80.7
7
Approximate Ducting
Length, 2.69 Pascal per
Metre (vertical )
25 m2.69 Pascal per
Metre67.3
8
Approximate Ducting
Length, 2.69 Pascal per
Metre ( horizontal )
49 m2.69 Pascal per
Metre131.8
9 Approximate Duct Fittings20 % of Duct
pressure drop55.9
10Duct & Fittings safety
factor10 % safety factor 123.10
1353.8
H-M2-45-24-HDE-06
Static Pressure Calculations
Exhaust of Contaminated Lab fume air to outside.
Total ESP For the fan
FAN DUTY : 0.382 m³/s
Item Description Size / Quantity
Unit App.
Pressure Drop
(Pascal)
Total App. Pressure
Drop (Pascal)
1Fume Hood Total Pressure
Drop1 No. 500 500
3Phoenix Flow Control
Valve1 No: 250 250
3Manual/ Motorised
Volume Control Dampers1 No. 30 30
4 Back draft damper 1 No. 35 35
5 Sound Attenuator 1 No. 80 80
6
Approximate Ducting
Length, 2.69 Pascal per
Metre (horizontal)
30 m.2.69 Pascal per
Metre80.7
7
Approximate Ducting
Length, 2.69 Pascal per
Metre (vertical )
25 m2.69 Pascal per
Metre67.3
8
Approximate Ducting
Length, 2.69 Pascal per
Metre ( horizontal )
49 m2.69 Pascal per
Metre131.8
9 Approximate Duct Fittings20 % of Duct
pressure drop55.9
10Duct & Fittings safety
factor10 % safety factor 123.10
1353.8
H-M2-45-24-HDE-07
Static Pressure Calculations
Exhaust of Contaminated Lab fume air to outside.
Total ESP For the fan
FAN DUTY : 0.382 m³/s
Item Description Size / Quantity
Unit App.
Pressure Drop
(Pascal)
Total App. Pressure
Drop (Pascal)
1Fume Hood Total Pressure
Drop1 No. 500 500
3Phoenix Flow Control
Valve1 No: 250 250
3Manual/ Motorised
Volume Control Dampers1 No. 30 30
4 Back draft damper 1 No. 35 35
5 Sound Attenuator 1 No. 80 80
6
Approximate Ducting
Length, 2.69 Pascal per
Metre (horizontal)
30 m.2.69 Pascal per
Metre80.7
7
Approximate Ducting
Length, 2.69 Pascal per
Metre (vertical )
25 m2.69 Pascal per
Metre62.3
8
Approximate Ducting
Length, 2.69 Pascal per
Metre ( horizontal )
49 m2.69 Pascal per
Metre131.8
9 Approximate Duct Fittings20 % of Duct
pressure drop54.9
10Duct & Fittings safety
factor10 % safety factor 122.40
1347.1
H-M2-45-24-HDE-08
Static Pressure Calculations
Exhaust of Contaminated Lab fume air to outside.
Total ESP For the fan
FAN DUTY : 0.382 m³/s
Item Description Size / Quantity
Unit App.
Pressure Drop
(Pascal)
Total App. Pressure
Drop (Pascal)
1Fume Hood Total Pressure
Drop1 No. 500 500
3Phoenix Flow Control
Valve1 No: 250 250
3Manual/ Motorised
Volume Control Dampers1 No. 30 30
4 Back draft damper 1 No. 35 35
5 Sound Attenuator 1 No. 80 80
6
Approximate Ducting
Length, 2.69 Pascal per
Metre (horizontal)
30 m.2.69 Pascal per
Metre80.7
7
Approximate Ducting
Length, 2.69 Pascal per
Metre (vertical )
25 m2.69 Pascal per
Metre62.3
8
Approximate Ducting
Length, 2.69 Pascal per
Metre ( horizontal )
49 m2.69 Pascal per
Metre131.8
9 Approximate Duct Fittings20 % of Duct
pressure drop54.9
10Duct & Fittings safety
factor10 % safety factor 122.40
1347.1
H-M2-45-24-HDE-09
Static Pressure Calculations
Exhaust of Contaminated Lab fume air to outside.
Total ESP For the fan
FAN DUTY : 0.382 m³/s
Item Description Size / Quantity
Unit App.
Pressure Drop
(Pascal)
Total App. Pressure
Drop (Pascal)
1Fume Hood Total Pressure
Drop1 No. 500 500
3Phoenix Flow Control
Valve1 No: 250 250
3Manual/ Motorised
Volume Control Dampers1 No. 30 30
4 Back draft damper 1 No. 35 35
5 Sound Attenuator 1 No. 80 80
6
Approximate Ducting
Length, 2.69 Pascal per
Metre (horizontal)
34 m.2.69 Pascal per
Metre91.5
7
Approximate Ducting
Length, 2.69 Pascal per
Metre (vertical )
25 m2.69 Pascal per
Metre62.3
8
Approximate Ducting
Length, 2.69 Pascal per
Metre ( horizontal )
36 m2.69 Pascal per
Metre96.8
9 Approximate Duct Fittings20 % of Duct
pressure drop50.1
10Duct & Fittings safety
factor10 % safety factor 119.60
1315.3
H-M2-45-24-HDE-10
Static Pressure Calculations
Exhaust of Contaminated Lab fume air to outside.
Total ESP For the fan
FAN DUTY : 0.382 m³/s
Item Description Size / Quantity
Unit App.
Pressure Drop
(Pascal)
Total App. Pressure
Drop (Pascal)
1Fume Hood Total Pressure
Drop1 No. 500 500
3Phoenix Flow Control
Valve1 No: 250 250
3Manual/ Motorised
Volume Control Dampers1 No. 30 30
4 Back draft damper 1 No. 35 35
5 Sound Attenuator 1 No. 80 80
6
Approximate Ducting
Length, 2.69 Pascal per
Metre (horizontal)
30 m.2.69 Pascal per
Metre80.7
7
Approximate Ducting
Length, 2.69 Pascal per
Metre (vertical )
25 m2.69 Pascal per
Metre62.3
8
Approximate Ducting
Length, 2.69 Pascal per
Metre ( horizontal )
36 m2.69 Pascal per
Metre96.8
9 Approximate Duct Fittings20 % of Duct
pressure drop48
10Duct & Fittings safety
factor10 % safety factor 118.30
1301.1
H-M2-45-24-HDE-11
Static Pressure Calculations
Exhaust of Contaminated Lab fume air to outside.
Total ESP For the fan
FAN DUTY : 0.382 m³/s
Item Description Size / QuantityUnit App. Pressure
Drop (Pascal)
Total App. Pressure
Drop (Pascal)
1Fume Hood Total Pressure
Drop1 No. 500 500
3Phoenix Flow Control
Valve1 No: 250 250
3Manual/ Motorised Volume
Control Dampers1 No. 30 30
4 Back draft damper 1 No. 35 35
5 Sound Attenuator 1 No. 80 80
6
Approximate Ducting
Length, 2.69 Pascal per
Metre (horizontal)
18 m.2.69 Pascal per
Metre48.4
7
Approximate Ducting
Length, 2.69 Pascal per
Metre (vertical )
53 m2.69 Pascal per
Metre142.6
8
Approximate Ducting
Length, 2.69 Pascal per
Metre ( horizontal )
32 m2.69 Pascal per
Metre86.1
9
Approximate Ducting
Length, 2.69 Pascal per
Metre ( horizontal )
75 m2.69 Pascal per
Metre201.8
10 Approximate Duct Fittings20 % of Duct
pressure drop95.7
11Duct & Fittings safety
factor10 % safety factor 146.90
1616.5
H-M2-45-24-HDE-14
Static Pressure Calculations
Exhaust of Contaminated Lab fume air to outside.
Total ESP For the fan
FAN DUTY : 0.382 m³/s
Item Description Size / Quantity
Unit App.
Pressure Drop
(Pascal)
Total App. Pressure
Drop (Pascal)
1Fume Hood Total Pressure
Drop1 No. 500 500
3Phoenix Flow Control
Valve1 No: 250 250
3Manual/ Motorised
Volume Control Dampers1 No. 30 30
4 Back draft damper 1 No. 35 35
5 Sound Attenuator 1 No. 80 80
6
Approximate Ducting
Length, 2.69 Pascal per
Metre (horizontal)
50 m.2.69 Pascal per
Metre134.5
7
Approximate Ducting
Length, 2.69 Pascal per
Metre (vertical )
6.5 m2.69 Pascal per
Metre17.5
8
Approximate Ducting
Length, 2.69 Pascal per
Metre ( horizontal )
75 m2.69 Pascal per
Metre201.8
9 Approximate Duct Fittings20 % of Duct
pressure drop70.8
10Duct & Fittings safety
factor10 % safety factor 132.00
1451.6
H-M2-45-24-HDE-13
Static Pressure Calculations
Exhaust of Contaminated Lab fume air to outside.
Total ESP For the fan
FAN DUTY : 0.382 m³/s
Item Description Size / Quantity
Unit App.
Pressure Drop
(Pascal)
Total App. Pressure
Drop (Pascal)
1Fume Hood Total Pressure
Drop1 No. 500 500
3Phoenix Flow Control
Valve1 No: 250 250
3Manual/ Motorised
Volume Control Dampers1 No. 30 30
4 Back draft damper 1 No. 35 35
5 Sound Attenuator 1 No. 80 80
6
Approximate Ducting
Length, 2.69 Pascal per
Metre (horizontal)
20 m.2.69 Pascal per
Metre53.8
7
Approximate Ducting
Length, 2.69 Pascal per
Metre (vertical )
4.5 m2.69 Pascal per
Metre12.1
8
Approximate Ducting
Length, 2.69 Pascal per
Metre ( horizontal )
12 m2.69 Pascal per
Metre32.3
9 Approximate Duct Fittings20 % of Duct
pressure drop19.6
10Duct & Fittings safety
factor10 % safety factor 101.30
1114.1
H-M2-45-24-HDE-03
Static Pressure Calculations
Exhaust of Contaminated Lab fume air to outside.
Total ESP For the fan
FAN DUTY : 0.575 m³/s
Item Description Size / QuantityUnit App. Pressure
Drop (Pascal)
Total App. Pressure
Drop (Pascal)
1Fume Hood Total Pressure
Drop1 No. 500 500
3Phoenix Flow Control
Valve1 No: 250 250
3Manual/ Motorised Volume
Control Dampers1 No. 30 30
4 Back draft damper 1 No. 35 35
5 Sound Attenuator 1 No. 80 80
6
Approximate Ducting
Length, 2.37 Pascal per
Metre (horizontal)
90 m.2.37 Pascal per
Metre213.3
7
Approximate Ducting
Length, 2.37 Pascal per
Metre (vertical )
50 m2.37 Pascal per
Metre118.5
8
Approximate Ducting
Length, 2.37 Pascal per
Metre ( horizontal )
42 m2.37 Pascal per
Metre99.5
9
Approximate Ducting
Length, 2.37 Pascal per
Metre ( horizontal )
35 m2.37 Pascal per
Metre82.9
10 Approximate Duct Fittings20 % of Duct
pressure drop102.8
11Duct & Fittings safety
factor10 % safety factor 151.20
1663.2
H-M2-45-24-HDE-12
Static Pressure Calculations
Exhaust of Contaminated Lab fume air to outside.
Total ESP For the fan
FAN DUTY : 0.844 m³/s
Item Description Size / QuantityUnit App. Pressure
Drop (Pascal)
Total App. Pressure
Drop (Pascal)
1Fume Hood Total Pressure
Drop1 No. 500 500
3Phoenix Flow Control
Valve1 No: 250 250
3Manual/ Motorised Volume
Control Dampers1 No. 30 30
4 Back draft damper 1 No. 35 35
5 Sound Attenuator 1 No. 80 80
6
Approximate Ducting
Length, 0.91 Pascal per
Metre (horizontal)
28 m.0.91 Pascal per
Metre25.5
7
Approximate Ducting
Length, 0.91 Pascal per
Metre (horizontal)
23 m0.91 Pascal per
Metre20.9
8
Approximate Ducting
Length, 0.91 Pascal per
Metre ( vertical )
25 m0.91 Pascal per
Metre22.8
9
Approximate Ducting
Length, 1.17 Pascal per
Metre ( horizontal )
15 m1.17 Pascal per
Metre17.6
10 Approximate Duct Fittings20 % of Duct
pressure drop17.4
11Duct & Fittings safety
factor10 % safety factor 99.90
1099.1
H-M2-45-24-HDE-21
Static Pressure Calculations
Exhaust of Contaminated Lab fume air to outside.
Total ESP For the fan
FAN DUTY : 0.634 m³/s
Item Description Size / QuantityUnit App. Pressure
Drop (Pascal)
Total App. Pressure
Drop (Pascal)
1Fume Hood Total Pressure
Drop1 No. 500 500
3Phoenix Flow Control
Valve1 No: 250 250
3Manual/ Motorised Volume
Control Dampers1 No. 30 30
4 Back draft damper 1 No. 35 35
5 Sound Attenuator 1 No. 80 80
6
Approximate Ducting
Length, 0.91 Pascal per
Metre (horizontal)
25 m.0.91 Pascal per
Metre22.8
7
Approximate Ducting
Length, 0.91 Pascal per
Metre (horizontal)
64 m0.91 Pascal per
Metre58.2
8
Approximate Ducting
Length, 0.91 Pascal per
Metre ( vertical )
14 m0.91 Pascal per
Metre12.7
9
Approximate Ducting
Length, 1.31 Pascal per
Metre ( horizontal )
13 m1.31 Pascal per
Metre17
10 Approximate Duct Fittings20 % of Duct
pressure drop22.14
11Duct & Fittings safety
factor10 % safety factor 102.78
1130.6
H-M2-45-24-HDE-23
Static Pressure Calculations
Exhaust of Contaminated Lab fume air to outside.
Total ESP For the fan
FAN DUTY : 0.634 m³/s
Item Description Size / QuantityUnit App. Pressure
Drop (Pascal)
Total App. Pressure
Drop (Pascal)
1Fume Hood Total Pressure
Drop1 No. 500 500
3Phoenix Flow Control
Valve1 No: 250 250
3Manual/ Motorised Volume
Control Dampers1 No. 30 30
4 Back draft damper 1 No. 35 35
5 Sound Attenuator 1 No. 80 80
6
Approximate Ducting
Length, 0.91 Pascal per
Metre (horizontal)
17.5 m.0.91 Pascal per
Metre15.9
7
Approximate Ducting
Length, 0.91 Pascal per
Metre (horizontal)
65 m0.91 Pascal per
Metre59.2
8
Approximate Ducting
Length, 0.91 Pascal per
Metre ( vertical )
14 m0.91 Pascal per
Metre12.7
9
Approximate Ducting
Length, 1.31 Pascal per
Metre ( horizontal )
13 m1.31 Pascal per
Metre17
10 Approximate Duct Fittings20 % of Duct
pressure drop20.96
11Duct & Fittings safety
factor10 % safety factor 102.08
1122.8
H-M2-45-24-HDE-22
Static Pressure Calculations
Exhaust of Contaminated Lab fume air to outside.
Total ESP For the fan
FAN DUTY : 0.844 m³/s
Item Description Size / Quantity
Unit App.
Pressure Drop
(Pascal)
Total App. Pressure
Drop (Pascal)
1Fume Hood Total Pressure
Drop1 No. 500 500
3Phoenix Flow Control
Valve1 No: 250 250
3Manual/ Motorised Volume
Control Dampers1 No. 30 30
4 Back draft damper 1 No. 35 35
5 Sound Attenuator 1 No. 80 80
6
Approximate Ducting
Length, 0.91 Pascal per
Metre (horizontal)
19 m.0.91 Pascal per
Metre17.3
7
Approximate Ducting
Length, 0.18 Pascal per
Metre (horizontal)
3 m0.18 Pascal per
Metre0.5
8
Approximate Ducting
Length, 0.65 Pascal per
Metre ( horizonta )
81 m0.65 Pascal per
Metre52.7
9
Approximate Ducting
Length, 0.65 Pascal per
Metre ( horizontal )
66 m0.65 Pascal per
Metre42.9
10
Approximate Ducting
Length, 0.65 Pascal per
Metre ( horizontal )
13 m0.65 Pascal per
Metre8.5
11
Approximate Ducting
Length, 0.65 Pascal per
Metre (vertical )
33 m0.65 Pascal per
Metre21.5
12 Approximate Duct Fittings20 % of Duct
pressure drop28.7
13Duct & Fittings safety
factor10 % safety factor 106.71
1173.8
H-M2-45-24-HDE-16
Static Pressure Calculations
Exhaust of Contaminated Lab fume air to outside.
Total ESP For the fan
FAN DUTY : 0.951 m³/s
Item Description Size / Quantity
Unit App.
Pressure Drop
(Pascal)
Total App. Pressure
Drop (Pascal)
1Fume Hood Total Pressure
Drop1 No. 500 500
3Phoenix Flow Control
Valve1 No: 250 250
3Manual/ Motorised Volume
Control Dampers1 No. 30 30
4 Back draft damper 1 No. 35 35
5 Sound Attenuator 1 No. 80 80
6
Approximate Ducting
Length, 0.91 Pascal per
Metre (horizontal)
27 m.0.91 Pascal per
Metre24.6
7
Approximate Ducting
Length, 0.95 Pascal per
Metre (horizontal)
52 m0.95 Pascal per
Metre49.4
8
Approximate Ducting
Length, 0.95 Pascal per
Metre ( horizonta )
25 m0.95 Pascal per
Metre23.8
9
Approximate Ducting
Length, 0.95 Pascal per
Metre ( horizontal )
37 m0.95 Pascal per
Metre35.2
10
Approximate Ducting
Length, 0.95 Pascal per
Metre ( vertical )
50 m0.95 Pascal per
Metre47.5
11
Approximate Ducting
Length, 0.81 Pascal per
Metre (horizontal )
13 m0.81 Pascal per
Metre10.5
12 Approximate Duct Fittings20 % of Duct
pressure drop38.2
13Duct & Fittings safety
factor10 % safety factor 112.42
1236.6
H-M2-45-24-HDE-19
Static Pressure Calculations
Exhaust of Contaminated Lab fume air to outside.
Total ESP For the fan
FAN DUTY : 0.899 m³/s
Item Description Size / Quantity
Unit App.
Pressure Drop
(Pascal)
Total App. Pressure
Drop (Pascal)
1Fume Hood Total Pressure
Drop1 No. 500 500
3Phoenix Flow Control
Valve1 No: 250 250
3Manual/ Motorised Volume
Control Dampers1 No. 30 30
4 Back draft damper 1 No. 35 35
5 Sound Attenuator 1 No. 80 80
6
Approximate Ducting
Length, 1.93 Pascal per
Metre (horizontal)
10.5 m.1.93 Pascal per
Metre20.3
7
Approximate Ducting
Length, 1.93 Pascal per
Metre (vertical)
23 m1.93 Pascal per
Metre44.4
8
Approximate Ducting
Length, 1.93 Pascal per
Metre ( horizontal )
35 m1.93 Pascal per
Metre67.6
9
Approximate Ducting
Length, 1.93 Pascal per
Metre ( horizontal )
30 m1.93 Pascal per
Metre57.9
10
Approximate Ducting
Length, 1.93 Pascal per
Metre ( vertical )
27 m1.93 Pascal per
Metre52.1
11
Approximate Ducting
Length, 1.31 Pascal per
Metre (horizontal )
13 m1.31 Pascal per
Metre17
12 Approximate Duct Fittings20 % of Duct
pressure drop51.8
13Duct & Fittings safety
factor10 % safety factor 120.61
1326.7
H-M2-45-24-HDE-18
Static Pressure Calculations
Exhaust of Contaminated Lab fume air to outside.
Total ESP For the fan
FAN DUTY : 1.864 m³/s
Item Description Size / Quantity
Unit App.
Pressure Drop
(Pascal)
1 Grille (450x600) 1 No. 50
2350x200 Ducting, 0.32
Pa/m6 m
0.32 Pascal per
Metre
3Phoenix Flow Control
Valve1 No: 250 Pascal
4 Sound Attenuator 1 No. 80
5200x150 Ducting, 0.95
Pa/m4.5 m
0.95 Pascal per
Metre
5300x250 Ducting, 0.47
Pa/m1.6 m
0.47 Pascal per
Metre
6 300x250 Ducting, 0.8 Pa/m 95 m0.8 Pascal per
Metre
7Motorised Fire Dampers/
Fire damper4 No. 30 Pascal
8300x250 Ducting, 0.93
Pa/m4 m
0.93 Pascal per
Metre
8 300x250 Ducting, 1.5 Pa/m 5 m1.5 Pascal per
Metre
7 Motorised Fire Dampers 1 No. 30 Pascal
8 300x250 Ducting, 2.2 Pa/m 2.5 m2.2 Pascal per
Metre
8 300x250 Ducting, 2.9 Pa/m 11 m2.9 Pascal per
Metre
8400x300 Ducting, 1.87
Pa/m4 m
1.87 Pascal per
Metre
8 400x300 Ducting, 2.3 Pa/m 2 m2.3 Pascal per
Metre
8 400x300 Ducting, 3.2 Pa/m 20 m3.2 Pascal per
Metre
8500x300 Ducting, 2.88
Pa/m (vertical)14 m
2.88 Pascal per
Metre
H-PL-45-21-HDE-03A / 03B
Static Pressure Calculations
Exhaust of Contaminated Lab fume air to outside.
8500x300 Ducting, 2.88
Pa/m (horizontal diversion)25 m
2.88 Pascal per
Metre
8500x300 Ducting, 2.88
Pa/m (vertical)32.5 m
2.88 Pascal per
Metre
8500x300 Ducting, 2.88
Pa/m (horizontal)13 m
2.88 Pascal per
Metre
8400x400 Ducting, 2.88
Pa/m (horizontal)7 m
2.88 Pascal per
Metre
NRD 1 No: 35 Pascal
12 Approximate Duct Fittings20 % of Duct
pressure drop
13Duct & Fittings safety
factor10 % safety factor
Total ESP For the fan
Total App. Pressure
Drop (Pascal)
50
1.9
250
80
4.3
0.8
76
30
3.7
7.5
30
5.8
31.9
7.4
4.6
64
40.32
H-PL-45-21-HDE-03A / 03B
Static Pressure Calculations
Exhaust of Contaminated Lab fume air to outside.
72
93.6
37.5
20.2
35
94.3
104.08
1144.9
Sn Fan Ref. Location Flow Rate (m³/s)
1 H-M2-45-24-HDE-01 Roof 0.382
2 H-M2-45-24-HDE-02 Roof 0.382
3 H-M2-45-24-HDE-03 Roof 0.382
4 H-M2-45-24-HDE-04 Roof 0.382
5 H-M2-45-24-HDE-05 Roof 0.382
6 H-M2-45-24-HDE-06 Roof 0.382
7 H-M2-45-24-HDE-07 Roof 0.382
8 H-M2-45-24-HDE-08 Roof 0.382
9 H-M2-45-24-HDE-09 Roof 0.382
10 H-M2-45-24-HDE-10 Roof 0.382
11 H-M2-45-24-HDE-11 Roof 0.382
12 H-M2-45-24-HDE-12 Roof 0.575
13 H-M2-45-24-HDE-13 Roof 0.382
14 H-M2-45-24-HDE-14 Roof 0.382
15 H-M2-45-24-HDE-15 Roof 0.741
16 H-M2-45-24-HDE-16 Roof 0.846
17 H-M2-45-24-HDE-17 Roof 0.951
18 H-M2-45-24-HDE-18 Roof 0.899
19 H-M2-45-24-HDE-19 Roof 0.951
20 H-M2-45-24-HDE-20 Roof 1.269
21 H-M2-45-24-HDE-21 Roof 0.846
22 H-M2-45-24-HDE-22 Roof 0.634
23 H-M2-45-24-HDE-23 Roof 0.634
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