JZ_img_01psd.psd.link
Multileaf damper, variant JZ

Multileaf damper with actuator

JZ_img_02psd.psd.link
Parallel blades

Parallel blades 

 

 

JZ_img_03psd.psd.link
Opposed blades

Opposed blades

 

 

JZ_img_01psd.psd.link
JZ_img_02psd.psd.link
JZ_img_03psd.psd.link

JZ

For shutting off the airflow in air conditioning systems

Rectangular multileaf dampers for volume flow and pressure control as well as for shutting off ducts and openings in walls and ceiling slabs

  • Maximum dimensions 2000 × 1995 mm
  • Casing air leakage to EN 1751, class C
  • Aerofoil parallel or opposed action blades
  • Blades interconnected by external linkage (for parallel or opposed blade action)
  • Available in standard sizes and many intermediate sizes
  • Can be combined with external weather louvres

 

Optional equipment and accessories

  • Actuators: Open/close actuators, modulating actuators
  • Explosion-proof construction with pneumatic actuator or spring return actuator
  • Powder-coated construction

 

General Information

Application

  • Multileaf dampers as a control element in the volume flow rate and differential pressure control in ventilation and air conditioning systems
  • For shutting off ducts and openings in walls and ceiling slabs
  • Parallel action blades are preferably used for opening/closing
  • Due to their characteristics, opposed action blades are preferable for variable operation
  • Steel and stainless steel variants with brass or stainless steel bearings are suitable for use in potentially explosive atmospheres (ATEX)


Special features

  • Aerofoil blades
  • Low-maintenance, robust construction
  • No parts with silicone
  • Available in standard sizes and many intermediate sizes



Nominal sizes

  • B: 200 – 2000 mm, in increments of 1 mm
  • Width subdivided (BM): 2001 – 4150 mm, in increments of 1 mm
  • H: 180, 345, 510, 675, 840, 1005, 1170, 1335, 1500, 1665, 1830, 1995 mm (intermediate sizes 183 – 1995 in increments of 1 mm, except for standard size H - 1 mm, H + 1 mm, H + 2 mm)
  • Height subdivided (HM): 1999 – 4066 mm, in increments of 1 mm
  • Any combination of B × H



Variants

  • JZ-S: Multileaf damper with opposed blade action, made of galvanised sheet steel
  • JZ-P: Multileaf damper with parallel blade action, made of galvanised sheet steel
  • JZ-S-A2: Multileaf damper with opposed blade action, made of stainless steel
  • JZ-P-A2: Multileaf damper with parallel blade action, made of stainless steel


Construction

Duct connection

  • Corner holes on both sides
  • G: Flange holes on both sides


Bearings

  • Plastic bearings, operating temperature -20 – 100 °C
  • M: Brass bearings, operating temperature -20 – 150 °C
  • E: Stainless steel bearings, operating temperature -20 – 150 °C


Blades

Only for steel or stainless steel multileaf dampers with brass or stainless steel bearings (JZ-...-M, JZ-...-E)

  • V: Reinforced blades available from width 800 mm


Parts and characteristics

  • Ready-to-install shut-off damper
  • Blades with external linkage
  • Drive arm



Attachments

  • Quadrant stays and limit switches for the infinite adjustment of the multileaf dampers and for capturing the end positions
  • Open/close actuators for opening and closing multileaf dampers
  • Modulating actuators for variable damper blade positions
  • Pneumatic actuators for opening and closing multileaf dampers
  • Explosion-proof actuators for opening and closing multileaf dampers



Accessories

  • Installation subframes for the fast and simple installation of multileaf dampers


Construction features

  • Rectangular casing, welded (P1: casing with screws), material thickness galvanised steel 1.25 mm, stainless steel A2 = 1.2 mm
  • Blades, material thickness 1 mm
  • Flanges on both sides, suitable for duct connections, either corner holes or flange holes
  • External linkage, robust and durable, consisting of the coupling rod and horizontal arms
  • Damper blade shafts, Ø12 mm, with notch to indicate the damper blade position (not for ZS99)
  • With spindle as an attachment: For the position of the spindle, see "Dimensions and weights"
  • With actuator as an attachment: The actuator is always attached to the second blade from the top
  • Construction and the selection of materials comply with the criteria stipulated in EU directives, referred to as ATEX (for use in potentially explosive atmospheres) for variants with brass or stainless steel bearings (-M, -E)


Materials and surfaces

  • Casing and blades made of galvanised sheet steel or stainless steel
  • Blade shafts, drive arms and external linkages made of galvanised steel or stainless steel
  • Plastic, brass or stainless steel bearings
  • P1: powder-coated, RAL CLASSIC colour
  • PS: powder-coated, DB colour


Standards and guidelines

  • Casing air leakage to EN 1751, class C


Maintenance

  • Maintenance-free, given that construction and the materials used are not subject to wear
  • Contamination should be removed as it may lead to corrosion and to increased air leakage in closed multileaf dampers


Description

Variants

  • JZ-S: Multileaf damper with opposed blade action, made of galvanised sheet steel
  • JZ-P: Multileaf damper with parallel blade action, made of galvanised sheet steel
  • JZ-S-A2: Multileaf damper with opposed blade action, made of stainless steel
  • JZ-P-A2: Multileaf damper with parallel blade action, made of stainless steel



Parts and characteristics

  • Ready-to-install shut-off damper
  • Blades with external linkage
  • Drive arm



Attachments

  • Quadrant stays and limit switches for the infinite adjustment of the multileaf dampers and for capturing the end positions
  • Open/close actuators for opening and closing multileaf dampers
  • Modulating actuators for variable damper blade positions
  • Pneumatic actuators for opening and closing multileaf dampers
  • Explosion-proof actuators for opening and closing multileaf dampers



Nominal sizes

  • B: 200 – 2000 mm, in increments of 1 mm
  • Width subdivided (BM): 2001 – 4150 mm, in increments of 1 mm
  • H: 180, 345, 510, 675, 840, 1005, 1170, 1335, 1500, 1665, 1830, 1995 mm (intermediate sizes 183 – 1995 in increments of 1 mm, except for standard size H - 1 mm, H + 1 mm, H + 2 mm)
  • Height subdivided (HM): 1999 – 4066 mm, in increments of 1 mm
  • Any combination of B × H

Technical information

Function, Technical data, Quick sizing, Specification text, Order code, Related products

  • FUNCTION
  • TECHNICAL DATA
  • QUICK SIZING
  • SPECIFICATION TEXT
  • ORDER CODE
  • RELATED PRODUCTS

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 air leakage in closed multileaf dampers.

 


The torques for operating multileaf dampers must be dimensioned in such a way 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 sizes200 × 180 – 2000 × 1995 mm
Operating temperature-20 to 100 °C


JZ-*, JZ-*-A2, minimum torques [Nm]

HB
200400600800100012001400160018002000
180 – 199510101010101010101010


Steel and stainless steel multileaf dampers, free cross-sectional area [m2]

H

B

200

400

600

800

1000

1200

1400

1600

1800

2000

1800.030.060.090.120.150.180.210.240.270.3
3450.060.110.170.230.280.340.40.450.510.57
5100.080.170.250.330.420.50.580.670.750.83
6750.110.220.330.440.550.660.770.880.991.1
8400.140.270.410.550.690.820.961.11.231.37
10050.160.330.490.660.820.981.151.311.471.64
11700.190.380.570.760.951.141.331.521.721.91
13350.220.430.650.871.091.31.521.741.962.17
15000.240.490.730.981.221.471.711.952.22.44
16650.270.540.811.081.361.631.92.172.442.71
18300.30.60.891.191.491.792.082.382.682.98
19950.320.650.971.31.621.952.272.62.923.25

Intermediate sizes: Interpolate values between widths.


Maximum permitted differential pressure Δpmax t [Pa] in the case of closed multileaf damper

Construction

B

800

1000

1200

1400

1600

1800

2000

Standard construction2500200016501400125011001000
Brass bearings (-M)3000250022001950175016001500
Stainless steel bearings (-E)3000250022001950175016001500
Reinforced blades (-M-V, -E-V)3500300027002500230021002000


 

JZ-S, JZ-S-A2, sound power level LWA [dB (A)] in the case of closed multileaf damper

Δpt [Pa]

Area B × H [m²]

0.14

0.2

0.4

0.6

0.8

1.2

2

4

1005758616364666871
2006365686971727577
5007172767879818384

1000

78

80

82

84

85

88

90

>90

1500

81

83

86

88

89

>90

>90

>90

2000

84

85

89

>90

>90

>90

>90

>90


JZ-P, JZ-P-A2, sound power level LWA [Pa] in the case of closed multileaf damper

Δpt [Pa]

Area B × H [m²]

0.14

0.2

0.4

0.6

0.8

1.2

2

4

1005758616364646871
2006365686971717578
5007172767879798587

1000

78

80

82

84

85

85

89

>90

1500

81

82

86

88

89

89

>90

>90

2000

84

86

89

>90

90

>90

>90

>90


Quick sizing tables provide a good overview of the expected sound power levels and differential pressures. Approximate intermediate values can be interpolated. Precise intermediate values and spectral data can be calculated with our Easy Product Finder design program. The LWA sound power levels 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-S, JZ-S-A2, differential pressure and sound power level

v [m/s]

Damper blade position α
OPEN

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

<30

22

44

255

67

1<5<30<5<308388559101082
2<531<535285333574>2000>90
4<546105011068139589>2000>90
6<555225925077>2000>90>2000>90
8861406544083>2000>90>2000>90



JZ-P, JZ-P-A2, differential pressure and sound power level

v [m/s]

Damper blade position α

OPEN

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

<30

<5

<30

12

42

1<5<30<5<30<5<3012404560
2<5<30<5301041455718577
4<541648405817075750>90
6<55114588569385851685>90
8<558256515076685>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 features

  • Aerofoil blades
  • Low-maintenance, robust construction
  • No parts with silicone
  • Available in standard sizes and many intermediate sizes



Materials and surfaces

  • Casing and blades made of galvanised sheet steel or stainless steel
  • Blade shafts, drive arms and external linkages made of galvanised steel or stainless steel
  • Plastic, brass or stainless steel bearings
  • P1: powder-coated, RAL CLASSIC colour
  • PS: powder-coated, DB colour


Construction

Duct connection

  • Corner holes on both sides
  • G: Flange holes on both sides

Bearings

  • Plastic bearings, operating temperature -20 – 100 °C
  • M: Brass bearings, operating temperature -20 – 150 °C
  • E: Stainless steel bearings, operating temperature -20 – 150 °C

Blades

Only for steel or stainless steel multileaf dampers with brass or stainless steel bearings (JZ-...-M, JZ-...-E)

  • V: Reinforced blades available from width 800 mm


Technical data

  • Nominal sizes: 200 × 180 mm – 2000 × 1995 mm
  • Operating temperature: -20 to 100 °C


Sizing data

  • qv (m³/h)
  • Δpt [Pa]

Air-regenerated noise

  • LPA [dB(A)]

JZPA2GML / 1000 × 1005 / ER / Z64 / NC / P1 – RAL …
||||||||||||
123456789101112
1 Type
JZ Multileaf damper
 
2 Function
S Opposed (standard)
P Parallel
 
3 Material
No entry required: galvanised steel
A2 Stainless steel
 
4 Duct connection
No entry required: corner holes on both sides,
G Flange holes on both sides (no corner holes)
 
5 Bearings
No entry required: plastic bearings
M Brass bearings
E Stainless steel bearings
 
6 Construction of blades
Only for steel or stainless steel multileaf dampers with brass or stainless steel bearings
V Reinforced blades available from width 800 mm
 
7 Operating side
No entry required: On the right
L Left
 
8 Nominal size [mm]
B × H
B > 2000: width subdivided
H > 1995: height subdivided
 
Note: width and height subdivided variant, only for galvanised steel
 
9 Installation subframe
No entry required: none
ER with (only for construction G)
 
10 Attachments
No entry required: none
Z04 – Z07 Hold open device
Z12 – Z51 Actuators
ZF01 – ZF15 Spring return actuators
Z60 – Z77 Pneumatic actuators
 
Explosion-proof actuators
Z1EX, Z3EX Electrical
Z60EX – Z77EX Pneumatic
 
11 Damper blade safety function
Only for spring return actuators and pneumatic actuators
NO pressure off/power off to OPEN
NC pressure off/power off to CLOSE
 
12 Surface
No entry required: standard construction
P1 powder-coated, specify RAL CLASSIC colour
PS powder-coated, specify DB colour
 
Gloss level
RAL 9010 50 %
RAL 9006 30 %
All other RAL colours 70 %


Order example: JZ–S–G–M–V–L/800×510/ER/Z43
FunctionOpposed
MaterialGalvanised steel
Duct connectionFlange holes on both sides
BearingsBrass bearings
Construction of bladesReinforced blades
Operating sideLeft
Nominal size800 × 510 mm
Installation subframeWith
AttachmentsActuator, 10 Nm, 230 V AC, 3-point
User interfaceStandard construction

Variants, Dimensions, Product details, Materials and surfaces, Attachments

  • VARIANTS
  • DIMENSIONS
  • PRODUCT DETAILS
  • MATERIALS AND SURFACES
  • ATTACHMENTS

Multileaf damper, variant JZ-S

Variant 
  • Multileaf damper with opposed blade action, made of galvanised sheet steel 

Materials and surfaces 
  • Casing and blades made of galvanised sheet steel 
  • Shafts, drive arms and linkages made of galvanised steel 
  • Plain bearings made of plastic 
  • P1: powder-coated, RAL CLASSIC colour 
  • PS: powder-coated, DB colour



Multileaf damper, variant JZ-P

Variant 

  • Multileaf damper with parallel blade action, made of galvanised sheet steel 

Materials and surfaces 
  • Casing and blades made of galvanised sheet steel 
  • Shafts, drive arms and linkages made of galvanised steel 
  • Plain bearings made of plastic 
  • P1: powder-coated, RAL CLASSIC colour 
  • PS: powder-coated, DB colour


Multileaf damper, variant JZ-S-A2

Variant 

  • Multileaf damper with opposed blade action, made of stainless steel 

Materials and surfaces 
  • Casing, blades and linkages made of stainless steel, material no. 1.4301 
  • Shafts made of stainless steel, material no. 1.4305 
  • Surface: pickled and passivated 
  • P1: powder-coated, RAL CLASSIC colour 
  • PS: powder-coated, DB colour


Multileaf damper, variant JZ-P-A2

Variant 

  • Multileaf damper with parallel blade action, made of stainless steel 

Materials and surfaces 
  • Casing, blades and linkages made of stainless steel, material no. 1.4301 
  • Shafts made of stainless steel, material no. 1.4305 
  • Surface: pickled and passivated 
  • P1: powder-coated, RAL CLASSIC colour 
  • PS: powder-coated, DB colour


JZ, JZ-HL, standard sizes

H

No. of blades

Spindle position

X

Damper blade

1801901
3452901
5103901
67542552
84054203
100564203
117075854
133585854
150097505
1665107505
1830119156
1995129156

JZ, JZ-HL, intermediate sizes

H

No. of blades

Spindle position

Y

X

Damper blade

183 – 34319011.5 – 81.5
348 – 50829021.5 – 81.5
513 – 67339021.5 – 81.5
678 – 838425521.5 – 81.5
843 – 1003542021.5 – 81.5
1008 – 1168642021.5 – 81.5
1173 – 1333758521.5 – 81.5
1338 – 1498858521.5 – 81.5
1503 – 1663975021.5 – 81.5
1668 – 18281075021.5 – 81.5
1833 – 19931191521.5 – 81.5


JZ, JZ-HL, intermediate sizes 
HB
200400600800100012001400160018002000
1804689111314161819
345681012151719212426
5107101316192225273033
67510131620232730333740
84011151923283237414650
100511172227323843485359
117013192531374349556167
133515222835414855616874
150016233037445159667380
166517253341495765728088
183018273544526169788695
1995192938475666758494103
  • Constructions with flange holes (-G) do not have corner holes
  • Flange holes on casing sizes from width 288 mm and height 212 mm 
  • Drive shafts (special accessory) upon request


Steel or stainless steel multileaf dampers, width, no. of flange holes per side

B Number of holes n
200 – 287

1

288 – 537

2

538 – 787

3

788 – 1037

4

1038 – 1287

5

1288 – 1537

6

1538 – 1787

7

1788 – 2000

8



Steel or stainless steel multileaf dampers, height, no. of flange holes per side

H

Number of holes n

180 – 211

1

212 – 461

2

462 – 711

3

712 – 961

4

962 – 1211

5

1212 – 1461

6

1462 – 1711

7

1712 – 1961

8

1962 – 1995

9



Shaft end projection A [mm]

Drive shaft Multileaf damper
JZ-S JZ-P JZ-S-A2 JZ-P-A2

Standard shaft

32.5

32.5

32.5

32.5

ZS99 – extended spindle 255 255 190 190
ZS991 – square shaft 9 mm 38 38 45 45
ZS992 – square shaft 10 mm 60 60



Material

Order code detail Part Material
Enclosure Galvanised sheet steel
Blades Galvanised sheet steel
Shafts Galvanised steel
Drive arm Galvanised steel
Linkage Galvanised steel
Bearings Plastic
A2 Enclosure Stainless steel, material no. 1.4301
A2 Blades Stainless steel, material no. 1.4301
A2 Shafts Stainless steel, material no. 1.4305
A2 Linkage Stainless steel, material no. 1.4301
E Bearings Stainless steel
M Bearings Brass


Surfaces

Order code detail Part User interface
Enclosure Untreated
P1-RAL ... Blades Powder-coated, colour RAL ... CLASSIC
PS-DB ... Blades Powder-coated, colour DB ...


Quadrant stays and limit switches

Order code detail Description Limit switch Function
Z04 Hold open device
Z05 Hold open device 1 Damper blade position CLOSED
Z06 Hold open device 1 Damper blade position OPEN
Z07 Hold open device 2 Damper blade positions CLOSED and OPEN


Open/close actuators

Order code detail Description Function Supply voltage Torque Auxiliary switch
Z12 SM230A 1-wire-control
2-wire-control (3-point)
100 – 240 V AC 20 Nm
Z13 GM230A 1-wire-control
–2-wire-control (OPEN-CLOSE)
100 – 240 V AC 40 Nm
Z14 SM24A 1-wire-control
2-wire-control (3-point)
24 V AC/DC 20 Nm
Z15 GM24A 1-wire-control
–2-wire-control (OPEN-CLOSE)
24 V AC/DC 40 Nm
Z16 SM230A 1-wire-control
2-wire-control (3-point)
100 – 240 V AC 20 Nm S2A
Z17 GM230A 1-wire-control
2-wire-control (3-point)
100 – 240 V AC 40 Nm S2A
Z18 SM24A 1-wire-control
2-wire-control (3-point)
24 V AC/DC 20 Nm S2A
Z19 GM24A 1-wire-control
2-wire-control (3-point)
24 V AC/DC 40 Nm S2A
Z43 NM230A 1-wire-control
2-wire-control (3-point)
100 – 240 V AC 10 Nm
Z45 NM24A 1-wire-control
2-wire-control (3-point)
24 V AC/DC 10 Nm
Z47 NM230A 1-wire-control
2-wire-control (3-point)
100 – 240 V AC 10 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

Order code detail Description Function Supply voltage Torque Auxiliary switch
ZS21 SMQ24A 1-wire-control 24 V AC/DC 16 Nm
ZS22 SMQ24A 1-wire-control 24 V AC/DC 16 Nm S2A

Only for nominal sizes with a minimum torque not exceeding 16 Nm.



Open/close actuators, spring return

Order code detail Description Function Supply voltage Torque Auxiliary switch
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
ZF06 SF24A Supply voltage on/off 24 V AC/DC 20 Nm
ZF07 SFA Supply voltage on/off 24 – 240 V AC

24 – 125 V DC
20 Nm
ZF08 SF24A-S2 Supply voltage on/off 24 V AC/DC 20 Nm integrated
ZF09 SFA-S2 Supply voltage on/off 24 – 240 V AC

24 – 125 V DC
20 Nm integrated
ZF11 EF24A Supply voltage on/off 24 V AC/DC 30 Nm
ZF12 EF230A Supply voltage on/off 100 – 240 V AC 30 Nm
ZF13 EF24A-S2 Supply voltage on/off 24 V AC/DC 30 Nm integrated
ZF14 EF230A-S2 Supply voltage on/off 100 – 240 V AC 30 Nm integrated

Minimum torque of multileaf damper has to be considered when selecting the actuator.


Modulating actuators


Order code detail Description Function Supply voltage Torque Auxiliary switch
Z20 SM24A-SR 2 – 10 V DC 24 V AC/DC 20 Nm
Z21 GM24A-SR 2 – 10 V DC 24 V AC/DC 40 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

Order code detail Description Function Supply voltage Torque Auxiliary switch
ZF05 NF24A-SR 2 – 10 V DC 24 V AC/DC 10 Nm
ZF10 SF24A-SR 2 – 10 V DC 24 V AC/DC 20 Nm
ZF15 EF24A-SR 2 – 10 V DC 24 V AC/DC 30 Nm

Minimum torque of multileaf damper has to be considered when selecting the actuator.


Double acting pneumatic actuators, including explosion-proof actuators

Order code detail Description Damper blade safety function Operating pressure Torque at 6 bar Limit switch Solenoid valve


(1)




(2)


Z60 Z60 EX DR030 1.2 – 6 bar 35 Nm
Z61 Z61 EX DR030 power off to close/open 1.2 – 6 bar 35 Nm 24 V DC
Z62 Z62 EX DR030 power off to close/open 1.2 – 6 bar 35 Nm 230 V AC
Z63 Z63 EX DR030 1.2 – 6 bar 35 Nm 2
Z64 Z64 EX DR030 power off to close/open 1.2 – 6 bar 35 Nm 2 24 V DC
Z65 Z65 EX DR030 power off to close/open 1.2 – 6 bar 35 Nm 2 230 V AC
Z66 Z66 EX DR060 1.2 – 6 bar 70 Nm
Z67 Z67 EX DR060 power off to close/open 1.2 – 6 bar 70 Nm 24 V DC
Z68 Z68 EX DR060 power off to close/open 1.2 – 6 bar 70 Nm 230 V AC
Z69 Z69 EX DR060 1.2 – 6 bar 70 Nm 2
Z70 Z70 EX DR060 power off to close/open 1.2 – 6 bar 70 Nm 2 24 V DC
Z71 Z71 EX DR060 power off to close/open 1.2 – 6 bar 70 Nm 2 230 V AC

(1) Standard
(2) Explosion-proof (only with brass or stainless steel bearings)
Minimum torque, which depends on the nominal size of multileaf damper, and the operating pressure have to be considered when selecting the actuator.



Single acting pneumatic actuators, including explosion-proof actuators

Order code detail Description Damper blade safety function Operating pressure Torque at 6 bar Limit switch Solenoid valve


(1)




(2)


Z72 Z72 EX SC060
SO060
pressure off to close/open 6 bar 30 Nm
Z73 Z73 EX SC060
SO060
power off and pressure off to close/open 6 bar 30 Nm 24 V DC
Z74 Z74 EX SC060
SO060
power off and pressure off to close/open 6 bar 30 Nm 230 V AC
Z75 Z75 EX SC060
SO060
pressure off to close/open 6 bar 30 Nm 2
Z76 Z76 EX SC060
SO060
power off and pressure off to close/open 6 bar 30 Nm 2 24 V DC
Z77 Z77 EX SC060

SO060
power off and pressure off to close/open 6 bar 30 Nm 2 230 V AC

(1) Standard
(2) Explosion-proof (only with brass or stainless steel bearings)


Explosion-proof open/close actuators, spring return actuators

Order code detail Description Function Supply voltage Torque Auxiliary switch
Z1EX ExMax15-SF 2-wire-control (3-point) 24 – 240 V AC/DC 15 Nm integrated
Z3EX ExMax30-SF 2-wire-control (3-point) 24 – 240 V AC/DC 30 Nm integrated

Only with brass or stainless steel bearings
Z1EX: Only for nominal sizes with a minimum torque up to 15 Nm.

Installation details

  • Installation details

Installation and commissioning

  • Only with horizontal blades
  • With or without installation subframe
  • Torsion-free installation
  • For widths exceeding 2000 mm or heights exceeding 1995 mm, install two multileaf dampers side by side or one above the other
  • Only for installation in internal spaces



Width subdivided, width

B₁B
25501200
29501400
33501600
37501800
41502000


Height subdivided, height

H₁H
20861005
24161170
27461335
30761500
34061665
37361830
40661995

Downloads

product information

certificates

operation manuals

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