The torque for actuating multileaf dampers must be dimensioned so that the damper can be safely opened and closed. For closure, the torque must suffice to ensure complete shut-off by the blades.
Opening is initiated without the impact of aerodynamic forces.
When air flows through the damper, the aerodynamic forces of the airflow create a closing force (torque) on the blades; this happens independently of the direction of the airflow. This closing force must be countered, or overcome. The blade angle α with the largest torque depends, among other things, on the fan characteristics.
200 × 180 – 2000 × 1995 mm |
0 – 100 °C |
JZ-LL, JZ-LL-A2, minimum torques [Nm]
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10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 |
10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 |
10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 |
10 | 10 | 10 | 10 | 10 | 10 | 15 | 15 | 15 | 15 |
10 | 10 | 10 | 10 | 15 | 15 | 15 | 15 | 15 | 15 |
10 | 10 | 15 | 15 | 15 | 15 | 15 | 15 | 20 | 20 |
15 | 15 | 15 | 15 | 15 | 15 | 20 | 20 | 30 | 30 |
15 | 15 | 15 | 15 | 20 | 20 | 30 | 30 | 30 | 30 |
15 | 15 | 15 | 20 | 20 | 30 | 30 | 30 | 30 | 30 |
20 | 20 | 20 | 20 | 30 | 30 | 30 | 30 | 30 | 30 |
20 | 20 | 20 | 20 | 30 | 30 | 30 | 30 | 30 | 30 |
20 | 20 | 20 | 20 | 30 | 30 | 30 | 30 | 30 | 30 |
Steel and stainless steel multileaf dampers, free cross-sectional area [m2]
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0.03 | 0.06 | 0.09 | 0.12 | 0.15 | 0.18 | 0.21 | 0.24 | 0.27 | 0.3 |
0.06 | 0.11 | 0.17 | 0.23 | 0.28 | 0.34 | 0.4 | 0.45 | 0.51 | 0.57 |
0.08 | 0.17 | 0.25 | 0.33 | 0.42 | 0.5 | 0.58 | 0.67 | 0.75 | 0.83 |
0.11 | 0.22 | 0.33 | 0.44 | 0.55 | 0.66 | 0.77 | 0.88 | 0.99 | 1.1 |
0.14 | 0.27 | 0.41 | 0.55 | 0.69 | 0.82 | 0.96 | 1.1 | 1.23 | 1.37 |
0.16 | 0.33 | 0.49 | 0.66 | 0.82 | 0.98 | 1.15 | 1.31 | 1.47 | 1.64 |
0.19 | 0.38 | 0.57 | 0.76 | 0.95 | 1.14 | 1.33 | 1.52 | 1.72 | 1.91 |
0.22 | 0.43 | 0.65 | 0.87 | 1.09 | 1.3 | 1.52 | 1.74 | 1.96 | 2.17 |
0.24 | 0.49 | 0.73 | 0.98 | 1.22 | 1.47 | 1.71 | 1.95 | 2.2 | 2.44 |
0.27 | 0.54 | 0.81 | 1.08 | 1.36 | 1.63 | 1.9 | 2.17 | 2.44 | 2.71 |
0.3 | 0.6 | 0.89 | 1.19 | 1.49 | 1.79 | 2.08 | 2.38 | 2.68 | 2.98 |
0.32 | 0.65 | 0.97 | 1.3 | 1.62 | 1.95 | 2.27 | 2.6 | 2.92 | 3.25 |
Intermediate sizes: Interpolate values between widths.
Maximum static differential pressure for a closed multileaf damper Δpt max [Pa]
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2500 | 2000 | 1650 | 1400 | 1250 | 1100 | 1000 |
3000 | 2500 | 2200 | 1950 | 1750 | 1600 | 1500 |
3000 | 2500 | 2200 | 1950 | 1750 | 1600 | 1500 |
3500 | 3000 | 2700 | 2500 | 2300 | 2100 | 2000 |
JZ-LL, JZ-LL-A2, sound power level for a closed multileaf damper LWA [dB(a)]
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<35 | 35 | 38 | 39 | 41 | 42 | 45 | 48 |
41 | 42 | 45 | 47 | 48 | 50 | 53 | 56 |
51 | 52 | 55 | 57 | 58 | 60 | 62 | 65 |
58 | 60 | 63 | 64 | 66 | 68 | 70 | >70 |
63 | 64 | 67 | 69 | >70 | >70 | >70 | >70 |
65 | 67 | 70 | >70 | >70 | >70 | >70 | >70 |
Die Schnellauslegung gibt einen guten Überblick über die zu erwartenden Schallleistungspegel und Druckdifferenzen. Ungefähre Zwischenwerte können interpoliert werden. Zu exakten Zwischenwerten und Spektraldaten führt die Auslegung mit unserem Auslegungsprogramm Easy Product Finder.
Die Schallleistungen LWA gelten für Jalousieklappen mit einer Querschnittsfläche (B × H) von 1 m².
Die Druckdifferenzen gelten für Jalousieklappen, die in Luftleitungen eingebaut sind (Einbauart A).
JZ-LL, JZ-LL-A2, JZ-HL, Druckdifferenz und Schallleistungspegel
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<5 | <30 | <5 | <30 | <5 | 7.5 | 22 | 34 | 250 | 63 |
<5 | <30 | <5 | <30 | 8 | 26 | 85 | 53 | 1000 | 83 |
<5 | <30 | <5 | <30 | 30 | 46 | 345 | 73 | >2000 | >90 |
<5 | 41 | 10 | 44 | 120 | 65 | 1385 | >90 | >2000 | >90 |
<5 | 52 | 24 | 56 | 270 | 77 | >2000 | >90 | >2000 | >90 |
10 | 60 | 42 | 64 | 480 | 85 | >2000 | >90 | >2000 | >90 |