Ventilation Components - Minor Pressure Loss
Pressure loss in ventilation system components like dampers, filters, heaters, coolers and more.
The table below indicates pressure drops in some common ventilation components and fittings.
Component Type | Pressure Loss (Pa) | |||||
---|---|---|---|---|---|---|
Air Velocity (m/s) | ||||||
2.0 | 2.25 | 2.5 | 2.75 | 3.0 | ||
Intake damper | 5 | 5 | 5 | 5 | 5 | |
Mixing chamber | straight | 35 | 45 | 55 | 70 | 85 |
90o | 40 | 55 | 70 | 85 | 100 | |
Filter | short EU2 | 70 | 75 | 80 | 90 | 95 |
short EU3 | 100 | 110 | 120 | 135 | 145 | |
long EU3 | 70 | 75 | 80 | 80 | 85 | |
long EU5 | 115 | 125 | 140 | 150 | 165 | |
long EU7 | 140 | 150 | 165 | 175 | 185 | |
long EU9 | 160 | 175 | 190 | 210 | 230 | |
Heater | water, size 1 | 5 | 5 | 10 | 10 | 10 |
water, size 2 | 10 | 15 | 15 | 20 | 20 | |
water, size 3 | 20 | 25 | 30 | 30 | 35 | |
electrical, size 1 | 10 | 10 | 15 | 15 | 20 | |
electrical, size 2 | 15 | 20 | 30 | 35 | 40 | |
electrical, size 3 | 35 | 45 | 55 | 70 | 85 | |
Cooler | size 1 | 20 | 25 | 30 | 35 | 40 |
size 2 | 25 | 35 | 40 | 45 | 55 | |
size 3 | 35 | 45 | 50 | 60 | 70 | |
drop separator | 45 | 50 | ||||
Humidifier | 60% | 50 | 60 | 75 | 90 | 110 |
90% | 75 | 100 | 120 | 160 | 180 | |
Noise damper | 750 mm | 5 | 10 | 10 | 15 | 15 |
1425 mm | 10 | 15 | 15 | 20 | 25 | |
Rotating heat exchanger | big rotor | 120 | 140 | 160 | 180 | 195 |
little rotor | 150 | 170 | 195 | 220 | 245 | |
Air-fluid-air exchanger | lamella 2 mm, size 1 | 50 | 60 | 75 | 90 | 105 |
lamella 2 mm, size 2 | 75 | 90 | 110 | 130 | 155 | |
lamella 2 mm, size 3 | 95 | 120 | 145 | 175 | 205 | |
lamella 4 mm, size 1 | 30 | 35 | 45 | 55 | 65 | |
lamella 4 mm, size 2 | 45 | 55 | 65 | 80 | 90 | |
lamella 4 mm, size 3 | 55 | 70 | 85 | 100 | 120 | |
drop separator | 45 | 50 | ||||
Plate exchanger | 65 | 80 | 105 | 125 | 150 | |
with drop separator | 200 | |||||
Related Topics
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Ventilation
Systems for ventilation and air handling - air change rates, ducts and pressure drops, charts and diagrams and more.
Related Documents
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Air Duct Components - Minor Dynamic Loss Coefficients
Minor loss (pressure or head loss) coefficients for air duct components. -
Ventilation Dampers - Classification
Dampers in ventilation systems may be classified through function, construction or leakage class. -
Ventilation Filters
Classification of air filters used in ventilation systems.