Multileaf damper with actuator
Application
Special characteristics
Nominal sizes
Parts and characteristics
Attachments
Accessories
Construction features
Materials and surfaces
Standards and guidelines
Maintenance
Functional description
Multileaf dampers with gears can only have opposed action blades.
The internal gears transfer the synchronous rotational movement from the drive arm to the individual blades.
The torque for closing a multileaf damper must be such 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 aerodynamic forces.
When air flows through the damper, the aerodynamic forces of the airflow create a closing force (torque) on the blades; this happens independent of the direction of the airflow. This closing force must be countered, or overcome. The blade position, or blade angle α, for which there is the largest torque depends, among other factors, on the fan characteristics.
Nominal sizes | 200 × 100 mm – 1200 × 1000 mm |
Maximum static differential pressure for a closed multileaf damper | 2000 Pa |
Operating temperature | 0 – 90 °C |
JZ-AL, minimum torque
100 – 650 | 5 | 5 | 5 | 5 | 5 | 5 |
700 – 1000 | 10 | 10 | 10 | 10 | 10 | 10 |
Aluminium multileaf dampers, free area
100, 150 | 0.014 | 0.022 | 0.030 | 0.038 | 0.047 | 0.055 | 0.063 | 0.071 | 0.079 | 0.087 | 0.095 |
200, 250 | 0.028 | 0.045 | 0.061 | 0.077 | 0.093 | 0.109 | 0.126 | 0.142 | 0.158 | 0.174 | 0.190 |
300, 350 | 0.043 | 0.067 | 0.091 | 0.115 | 0.140 | 0.164 | 0.188 | 0.213 | 0.237 | 0.261 | 0.286 |
400, 450 | 0.057 | 0.089 | 0.122 | 0.154 | 0.186 | 0.219 | 0.251 | 0.284 | 0.316 | 0.348 | 0.381 |
500, 550 | 0.071 | 0.111 | 0.152 | 0.192 | 0.233 | 0.273 | 0.314 | 0.354 | 0.395 | 0.435 | 0.476 |
600, 650 | 0.085 | 0.134 | 0.182 | 0.231 | 0.279 | 0.328 | 0.377 | 0.425 | 0.474 | 0.522 | 0.571 |
700, 750 | 0.099 | 0.156 | 0.213 | 0.269 | 0.326 | 0.383 | 0.439 | 0.496 | 0.553 | 0.610 | 0.666 |
800, 850 | 0.113 | 0.178 | 0.243 | 0.308 | 0.373 | 0.437 | 0.502 | 0.567 | 0.632 | 0.697 | 0.761 |
900, 950 | 0.128 | 0.200 | 0.273 | 0.346 | 0.419 | 0.492 | 0.565 | 0.638 | 0.711 | 0.784 | 0.857 |
1000 | 0.142 | 0.223 | 0.304 | 0.385 | 0.466 | 0.547 | 0.628 | 0.709 | 0.790 | 0.871 | 0.952 |
Intermediate sizes: Intermediate widths can be interpolated
JZ-AL, sound power level for a closed multileaf damper
100 | 42 | 45 | 48 | 50 | 51 | 54 | 55 | 56 | 56 |
200 | 49 | 53 | 55 | 57 | 59 | >60 | >60 | >60 | >60 |
500 | 59 | >60 | >60 | >60 | >60 | >60 | >60 | >60 | >60 |
1000 | >60 | >60 | >60 | >60 | >60 | >60 | >60 | >60 | >60 |
1500 | >60 | >60 | >60 | >60 | >60 | >60 | >60 | >60 | >60 |
2000 | >60 | >60 | >60 | >60 | >60 | >60 | >60 | >60 | >60 |
Quick sizing tables provide a good overview of the sound power levels and differential pressures that can be expected. Approximate intermediate values can be interpolated. Precise intermediate values and spectral data can be calculated with our Easy Product Finder design programme.
The sound power levels LWA apply to multileaf dampers with a cross-sectional area (B × H) of 1 m².
The differential pressures apply to multileaf dampers installed in ducts (installation type A).
JZ-AL, differential pressure and sound power level
0.5 | <5 | <30 | <5 | <30 | <5 | <30 | 22 | 42 | 245 | 67 |
1 | <5 | <30 | <5 | <30 | 8 | 35 | 90 | 58 | 985 | 83 |
2 | <5 | <30 | <5 | 32 | 32 | 51 | 350 | 74 | >2000 | >90 |
4 | <5 | 43 | 12 | 48 | 125 | 67 | 1390 | 90 | >2000 | >90 |
6 | <5 | 52 | 24 | 57 | 275 | 76 | >2000 | >90 | >2000 | >90 |
8 | 10 | 59 | 45 | 64 | 490 | 83 | >2000 | >90 | >2000 | >90 |
10 | 14 | 64 | 70 | 69 | 765 | 88 | >2000 | >90 | >2000 | >90 |
Rectangular multileaf dampers for volume flow and pressure control as well as for shutting off 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.
Casing air leakage to EN 1751, class C.
Special characteristics
Materials and surfaces
Technical data
Sizing data
Air-regenerated noise
Order example: JZ-AL/600×850/ZF01/NO/P1–RAL7001
Nominal size | 600 × 850 mm |
Installation subframe | Without |
Attachments | Spring return actuator, 10 Nm, 24 V AC/DC |
Damper blade position | Power off to OPEN |
Surface | Powder-coated, RAL 7001, silver grey |
Quadrant stays and limit switches
Z04 | Quadrant stay | – | |
Z05 | Quadrant stay | 1 | Damper blade position CLOSED |
Z06 | Quadrant stay | 1 | Damper blade position OPEN |
Z07 | Quadrant stay | 2 | Damper blade positions CLOSED nad OPEN |
Open/Close actuators
Z12 | SM230A | –1-wire-control –2-wire-control (3-point) | 100 – 240 V AC | 20 Nm | – |
Z14 | SM24A | –1-wire-control –2-wire-control (3-point) | 24 V AC/DC | 20 Nm | – |
Z16 | SM230A | –1-wire-control –2-wire-control (3-point) | 100 – 240 V AC | 20 Nm | S2A |
Z18 | SM24A | –1-wire-control –2-wire-control (3-point) | 24 V AC/DC | 20 Nm | S2A |
Z42 | LM230A | –1-wire-control –2-wire-control (3-point) | 100 – 240 V AC | 5 Nm | – |
Z43 | NM230A | –1-wire-control –2-wire-control (3-point) | 100 – 240 V AC | 10 Nm | – |
Z44 | LM24A | –1-wire-control –2-wire-control (3-point) | 24 V AC/DC | 5 Nm | – |
Z45 | NM24A | –1-wire-control –2-wire-control (3-point) | 24 V AC/DC | 10 Nm | – |
Z46 | LM230A | –1-wire-control –2-wire-control (3-point) | 100 – 240 V AC | 5 Nm | S2A |
Z47 | NM230A | –1-wire-control –2-wire-control (3-point) | 100 – 240 V AC | 10 Nm | S2A |
Z48 | LM24A | –1-wire-control –2-wire-control (3-point) | 24 V AC/DC | 5 Nm | S2A |
Z49 | NM24A | –1-wire-control –2-wire-control (3-point) | 24 V AC/DC | 10 Nm | S2A |
Minimum torque of multileaf damper has to be considered when selecting the actuator.
Open/Close actuators, fast-running
ZS21 | SMQ24A | –1-wire-control | 24 V AC/DC | 16 Nm | – |
ZS22 | SMQ24A | –1-wire-control | 24 V AC/DC | 16 Nm | S2A |
Open/Close actuators, spring return
ZF01 | NF24A | Supply voltage on/off | 24 V AC/DC | 10 Nm | – |
ZF02 | NFA | Supply voltage on/off | 24 – 240 V AC 24 – 125 V DC | 10 Nm | – |
ZF03 | NF24A-S2 | Supply voltage on/off | 24 V AC/DC | 10 Nm | integrated |
ZF04 | NFA-S2 | Supply voltage on/off | 24 – 240 V AC 24 – 125 V DC | 10 Nm | integrated |
Modulating actuators
Z20 | SM24A-SR | 2 – 10 V DC | 24 V AC/DC | 20 Nm | – |
Z50 | LM24A-SR-F | 2 – 10 V DC | 24 V AC/DC | 5 Nm | – |
Z51 | NM24A-SR | 2 – 10 V DC | 24 V AC/DC | 10 Nm | – |
Minimum torque of multileaf damper has to be considered when selecting the actuator.
Modulating actuators, spring return
ZF05 | NF24A-SR | 2 – 10 V DC | 24 V AC/DC | 10 Nm | – |
Double acting pneumatic actuators
Z60 | DR030 | – | 1.2 – 6 bar | 35 Nm | – | – |
Z61 | DR030 | Power off to close/open | 1.2 – 6 bar | 35 Nm | – | 24 V DC |
Z62 | DR030 | Power off to close/open | 1.2 – 6 bar | 35 Nm | – | 230 V AC |
Z63 | DR030 | – | 1.2 – 6 bar | 35 Nm | 2 | |
Z64 | DR030 | Power off to close/open | 1.2 – 6 bar | 35 Nm | 2 | 24 V DC |
Z65 | DR030 | Power off to close/open | 1.2 – 6 bar | 35 Nm | 2 | 230 V AC |
Z66 | DR060 | – | 1.2 – 6 bar | 70 Nm | – | |
Z67 | DR060 | Power off to close/open | 1.2 – 6 bar | 70 Nm | – | 24 V DC |
Z68 | DR060 | Power off to close/open | 1.2 – 6 bar | 70 Nm | – | 230 V AC |
Z69 | DR060 | – | 1.2 – 6 bar | 70 Nm | 2 | |
Z70 | DR060 | Power off to close/open | 1.2 – 6 bar | 70 Nm | 2 | 24 V DC |
Z71 | DR060 | Power off to close/open | 1.2 – 6 bar | 70 Nm | 2 | 230 V AC |
Z60 – Z65: At 1.2 bar operating pressure only up to height H ≤ 650 mm
Single acting pneumatic actuators
Z72 | SC060 SO060 | Pressure off to close/open | 6 bar | 30 Nm | ||
Z73 | SC060 SO060 | Power off and pressure off to close/open | 6 bar | 30 Nm | 24 V DC | |
Z74 | SC060 SO060 | Power off and pressure off to close/open | 6 bar | 30 Nm | 230 V AC | |
Z75 | SC060 SO060 | Pressure off to close/open | 6 bar | 30 Nm | 2 | |
Z76 | SC060 SO060 | Power off and pressure off to close/open | 6 bar | 30 Nm | 2 | 24 V DC |
Z77 | SC060 SO060 | Power off and pressure off to close/open | 6 bar | 30 Nm | 2 | 230 V AC |
JZ-AL, JZ-HL-AL, standard sizes
100 | 1 | 50 | 1 |
200 | 2 | 50 | 1 |
300 | 3 | 50 | 1 |
400 | 4 | 250 | 3 |
500 | 5 | 250 | 3 |
600 | 6 | 250 | 3 |
700 | 7 | 250 | 3 |
800 | 8 | 250 | 3 |
900 | 9 | 250 | 3 |
1000 | 10 | 250 | 3 |
JZ-AL, JZ-HL-AL, intermediate sizes
150 | 1 | 50 | 1 |
250 | 2 | 50 | 1 |
350 | 3 | 50 | 1 |
450 | 4 | 250 | 3 |
550 | 5 | 250 | 3 |
650 | 6 | 250 | 3 |
750 | 7 | 250 | 3 |
850 | 8 | 250 | 3 |
950 | 9 | 250 | 3 |
JZ-AL, weight
100 | 2 | 2 | 2 | 3 | 3 | 3 | 4 | 4 | 4 | 5 | 5 |
200 | 2 | 2 | 3 | 3 | 3 | 4 | 4 | 5 | 5 | 5 | 6 |
300 | 3 | 3 | 4 | 4 | 5 | 5 | 5 | 6 | 6 | 7 | 7 |
400 | 4 | 4 | 5 | 5 | 6 | 6 | 7 | 7 | 8 | 8 | 9 |
500 | 4 | 4 | 5 | 5 | 6 | 7 | 7 | 8 | 9 | 9 | 10 |
600 | 5 | 5 | 6 | 7 | 7 | 8 | 9 | 9 | 10 | 11 | 11 |
700 | 6 | 6 | 7 | 8 | 8 | 9 | 10 | 11 | 11 | 12 | 13 |
800 | 6 | 7 | 8 | 9 | 9 | 10 | 11 | 12 | 13 | 13 | 14 |
900 | 7 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 |
1000 | 7 | 7 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 |
Principal dimensions
B [mm]
Duct width
H [mm]
Duct height
n [ ]
Number of flange screw holes
M [kg]
Weight
Nomenclature
LWA [dB(A)]
A-weighted sound power level of air-regenerated noise for the multileaf damper
α [°]
Damper blade position, 0°: OPEN, 90°: CLOSED
A [m²]
Upstream cross section
v [m/s]
Airflow velocity based on the upstream cross section (B × H)
V [m³/h] and [l/s]
Volume flow rate
Δpst [Pa]
Static differential pressure
Δpst max [Pa]
Maximum static differential pressure
All sound power levels are based on 1 pW.
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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