Multileaf damper with actuator
Application
Special characteristics
Classification
Test pressure up to 2000 Pa
Test pressure up to 1000 Pa
Nominal sizes
Variants
Constructions
Bearings
Blades
Parts and characteristics
Attachments
Accessories
Construction features
Material and surfaces
Standards and guidelines
Maintenance
Multileaf dampers with external linkage can have parallel action blades or opposed action blades. An external linkage transfers the synchronous rotational movement from the drive arm to the individual blades. Even very large multileaf dampers can be safely opened and closed with this type of linkage. Opposed action blades close at various speeds as the linkage includes a transverse link. This facilitates the closing process and reduces the closed multileaf damper air leakage.
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.
Nominal sizes | 200 × 180 – 2000 × 1995 mm |
Operating temperature | 0 – 100 °C |
JZ-LL, JZ-LL-A2, minimum torques [Nm]
H | B | |||||||||
---|---|---|---|---|---|---|---|---|---|---|
200 | 400 | 600 | 800 | 1000 | 1200 | 1400 | 1600 | 1800 | 2000 | |
180 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 |
345 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 |
510 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 |
675 | 10 | 10 | 10 | 10 | 10 | 10 | 15 | 15 | 15 | 15 |
840 | 10 | 10 | 10 | 10 | 15 | 15 | 15 | 15 | 15 | 15 |
1005 | 10 | 10 | 15 | 15 | 15 | 15 | 15 | 15 | 20 | 20 |
1170 | 15 | 15 | 15 | 15 | 15 | 15 | 20 | 20 | 30 | 30 |
1335 | 15 | 15 | 15 | 15 | 20 | 20 | 30 | 30 | 30 | 30 |
1500 | 15 | 15 | 15 | 20 | 20 | 30 | 30 | 30 | 30 | 30 |
1665 | 20 | 20 | 20 | 20 | 30 | 30 | 30 | 30 | 30 | 30 |
1830 | 20 | 20 | 20 | 20 | 30 | 30 | 30 | 30 | 30 | 30 |
1995 | 20 | 20 | 20 | 20 | 30 | 30 | 30 | 30 | 30 | 30 |
Steel and stainless steel multileaf dampers, free cross-sectional area [m2]
H | B | |||||||||
---|---|---|---|---|---|---|---|---|---|---|
200 | 400 | 600 | 800 | 1000 | 1200 | 1400 | 1600 | 1800 | 2000 | |
180 – 344 | 0.03 | 0.06 | 0.09 | 0.12 | 0.15 | 0.18 | 0.21 | 0.24 | 0.27 | 0.3 |
345 – 509 | 0.06 | 0.11 | 0.17 | 0.23 | 0.28 | 0.34 | 0.4 | 0.45 | 0.51 | 0.57 |
510 – 674 | 0.08 | 0.17 | 0.25 | 0.33 | 0.42 | 0.5 | 0.58 | 0.67 | 0.75 | 0.83 |
675 – 839 | 0.11 | 0.22 | 0.33 | 0.44 | 0.55 | 0.66 | 0.77 | 0.88 | 0.99 | 1.1 |
840 – 1004 | 0.14 | 0.27 | 0.41 | 0.55 | 0.69 | 0.82 | 0.96 | 1.1 | 1.23 | 1.37 |
1005 – 1169 | 0.16 | 0.33 | 0.49 | 0.66 | 0.82 | 0.98 | 1.15 | 1.31 | 1.47 | 1.64 |
1170 – 1334 | 0.19 | 0.38 | 0.57 | 0.76 | 0.95 | 1.14 | 1.33 | 1.52 | 1.72 | 1.91 |
1335 – 1499 | 0.22 | 0.43 | 0.65 | 0.87 | 1.09 | 1.3 | 1.52 | 1.74 | 1.96 | 2.17 |
1500 – 1664 | 0.24 | 0.49 | 0.73 | 0.98 | 1.22 | 1.47 | 1.71 | 1.95 | 2.2 | 2.44 |
1665 – 1829 | 0.27 | 0.54 | 0.81 | 1.08 | 1.36 | 1.63 | 1.9 | 2.17 | 2.44 | 2.71 |
1830 – 1994 | 0.3 | 0.6 | 0.89 | 1.19 | 1.49 | 1.79 | 2.08 | 2.38 | 2.68 | 2.98 |
1995 | 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]
Construction | B | ||||||
---|---|---|---|---|---|---|---|
800 | 1000 | 1200 | 1400 | 1600 | 1800 | 2000 | |
Standard construction | 2500 | 2000 | 1650 | 1400 | 1250 | 1100 | 1000 |
Brass bearings (-M) | 3000 | 2500 | 2200 | 1950 | 1750 | 1600 | 1500 |
Stainless steel bearings (-E) | 3000 | 2500 | 2200 | 1950 | 1750 | 1600 | 1500 |
Reinforced blades (-M-V, -E-V) 3 | 3500 | 3000 | 2700 | 2500 | 2300 | 2100 | 2000 |
JZ-LL, JZ-LL-A2, sound power level for a closed multileaf damper LWA [dB(a)]
Δpt [Pa] | Area B × H [m²] | |||||||
---|---|---|---|---|---|---|---|---|
0.14 | 0.2 | 0.4 | 0.6 | 0.8 | 1.2 | 2 | 4 | |
100 | <35 | 35 | 38 | 39 | 41 | 42 | 45 | 48 |
200 | 41 | 42 | 45 | 47 | 48 | 50 | 53 | 56 |
500 | 51 | 52 | 55 | 57 | 58 | 60 | 62 | 65 |
1000 | 58 | 60 | 63 | 64 | 66 | 68 | 70 | >70 |
1500 | 63 | 64 | 67 | 69 | >70 | >70 | >70 | >70 |
2000 | 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
v [m/s] | Klappenstellung α | |||||||||
---|---|---|---|---|---|---|---|---|---|---|
AUF | 20° | 40° | 60° | 80° | ||||||
Δpt [Pa] | LWA [dB(A)] | Δpt [Pa] | LWA [dB(A)] | Δpt [Pa] | LWA [dB(A)] | Δpt [Pa] | LWA [dB(A)] | Δpt [Pa] | LWA [dB(A)] | |
0,5 | <5 | <30 | <5 | <30 | <5 | 7.5 | 22 | 34 | 250 | 63 |
1 | <5 | <30 | <5 | <30 | 8 | 26 | 85 | 53 | 1000 | 83 |
2 | <5 | <30 | <5 | <30 | 30 | 46 | 345 | 73 | >2000 | >90 |
4 | <5 | 41 | 10 | 44 | 120 | 65 | 1385 | >90 | >2000 | >90 |
6 | <5 | 52 | 24 | 56 | 270 | 77 | >2000 | >90 | >2000 | >90 |
8 | 10 | 60 | 42 | 64 | 480 | 85 | >2000 | >90 | >2000 | >90 |
Rectangular multileaf dampers for volume flow and pressure control as well as for low-leakage shut-off of ducts and openings in walls and ceiling slabs. Ready-to-operate unit which consists of the casing, aerofoil blades and the blade mechanism. Flanges on both sides, suitable for duct connection. The blade position is indicated externally by a notch in the blade shaft extension.
Closed multileaf damper air leakage to EN 1751, class 4 (B ≤ 600 mm, class 3)
Casing air leakage to EN 1751, class C
Special characteristics
Material and surfaces
Constructions
Bearings
Blades
Technical data
Sizing data
Life cycle assessment
A life cycle assessment is available for the product series in form of an Environmental Product Declaration (EPD) that has been checked and published by a programme holder.
JZ-LL | – | A2 | – | G | – | M | – | – | L | / | 1000 × 1005 | / | ER | / | Z64 | / | NC | / | P1 - RAL 9010 | |
| | | | | | | | | | | | | | | | | | | | | | ||||||||||
1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 |
Order example: JZ-LL–G–L/1200×675/ER/ZF06/NC
Material | Galvanised steel |
Duct connection | Flange holes on both sides |
Bearings | Plastic bearings |
Construction of blades | Standard |
Operating side | Left |
Nominal size | 1200 × 675 mm |
Installation subframe | With |
Attachments | Spring return actuator, 20 Nm, 24 V AC/DC |
Damper blade position | Power off to CLOSE |
User interface | Standard construction |
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Contact
Suntem aici pentru dumneavoastră
Vă rugăm să exprimaţi mesajul dumneavoastră şi tipul de cerere
Tel.: +40 31 82 43 041 | Fax: +40 31 82 43 040
Contact
Vă mulţumim pentru mesaj!
Mesajul dumneavoastră este trimis şi va fi procesat în curând.
Departamentul nostru de Cereri Service o să vă contacteze în cel mai scurt timp Pentru întrebări generale privind produsele sau serviciile puteţi suna şi la:
Tel.: +40 31 82 43 041 | Fax: +40 31 82 43 040