Ventilation Components - Minor Pressure Loss
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
• Ventilation Systems
Design of systems for ventilation and air handling - air change rates, ducts and pressure drops, charts and diagrams and more.
Related Documents
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.
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Classification of air filters used in ventilation systems.