Trox Technik EK-JZ Mode D'emploi page 11

1150
1200
Quick sizing tables provide a good overview of the volume flow rates for different airflow velocities as well as of differential pressures
The differential pressures shown apply to smoke control dampers without a cover grille, installation type C
Differential pressures for smoke control dampers with a cover grille or for other installation types can be calculated with a correction factor
Precise values based on project-specific data can be determined with our Easy Product Finder design software
You will find the Easy Product Finder on our website
Sizing example 1
Given data
3
V = 1000 l/s (3600 m /h)
Max. height 1030 mm
Smoke extract, 2.5 m/s, smoke extract duct on one side, cover grille D (installation type C)
Quick sizing
EK-JZ/650×630, A = 0.30 m², Δp = 3 Pa
free
Correction factor for A up to 0.37 m²: 3.99
free
Total differential pressure for a smoke control damper with cover grille: Δp = 3 Pa × 3.99 = 12 Pa
EK-JZ/500×830, A = 0.31 m², Δp = 3 Pa
free
Correction factor for A up to 0.37 m²: 3.99
free
Total differential pressure for a smoke control damper with cover grille: Δp = 3 Pa × 3.99 = 12 Pa
EK-JZ/400×1030, A = 0.32 m², Δp = 3 Pa
free
Correction factor for A up to 0.37 m²: 3.99
free
Total differential pressure for a smoke control damper with cover grille: Δp = 3 Pa × 3.99 = 12 Pa
Sizing example 2
Given data
3
V = 4000 l/s (14400 m /h)
Max. height 1030 mm
Smoke extract, 5 m/s, smoke extract ducts on both sides, no cover grille (installation type A)
Quick sizing
EK-JZ/1000×830, A = 0.63 m², Δp = 12 Pa
free
Correction factor for A up to 0.78 m²: 0.59
free
Total differential pressure for smoke control damper: Δp = 12 Pa × 0.59 = 7 Pa
EK-JZ/800×1030, A = 0.63 m², Δp = 12 Pa
free
Correction factor for A up to 0.78 m²: 0.59
free
Total differential pressure for smoke control damper: Δp = 12 Pa × 0.59 = 7 Pa
EK-JZ, volume flow rates and differential pressures
Nominal size
B
mm
2030
t
t
t
t
t
t
t
H
l/s
10
10
t
t
t
2.5 m/s
V
m³/h
1.83
1.91
Δp
t
Pa l/s
2.33
2.44
5 m/s
V
m³/h