Type TVM

For dual duct systems

VAV dual duct terminal units for dual duct systems with variable volume flows in buildings with demanding acoustic requirements

  • Individual temperature control for each room or zone
  • Highly effective integral attenuator
  • Electronic control components for different applications (Compact and Universal)
  • Suitable for airflow velocities up to 13 m/s
  • Closed blade air leakage to EN 1751, up to class 4
  • Casing air leakage to EN 1751, class A


Optional equipment and accessories

  • Acoustic cladding for the reduction of case-radiated noise
  • Secondary silencer Type TS for the reduction of air-regenerated noise

VAV dual duct terminal unit, variant TVM 00132456_0


  • Application
  • Description

Application

  • VARYCONTROL VAV dual duct terminal units of Type TVM for the supply air control in dual duct variable or constant air volume systems
  • Closed-loop volume flow control using an external power supply
  • For maximum acoustic and thermal comfort
  • Demand-based mixing of cold and warm air
  • Shut-off by means of switching (equipment supplied by others)

Special characteristics

  • Integral differential pressure sensor with 3 mm measuring holes (resistant to dust and pollution)
  • Integral attenuator with at least 26 dB insertion loss at 250 Hz
  • Factory set-up or programming and aerodynamic function testing
  • Volume flow rate can later be measured and adjusted on site; additional adjustment device may be necessary
  • Inspection access for cleaning to VDI 6022

Nominal sizes

  • TVM-S: 125, 160, 200
  • TVM: 125, 160, 200, 250, 315, 400

Variants

  • TVM-S Dual duct unit, 60° spigot arrangement
  • TVM-S-D Dual duct unit with acoustic cladding, 60° spigot arrangement
  • TVM: Dual duct unit, 90° spigot arrangement
  • TVM-D: Dual duct unit with acoustic cladding, 90° spigot arrangement
  • Units with acoustic cladding and/or secondary silencer Type TS for very demanding acoustic requirements
  • Acoustic cladding cannot be retrofitted

Parts and characteristics

  • Ready-to-commission unit which consists of mechanical parts and control components.
  • Averaging differential pressure sensors for volume flow rate measurement, one in the cold air spigot and one in the silencer
  • Damper blade
  • Integral attenuator
  • Inspection access
  • Factory assembled control components complete with wiring and tubing
  • Aerodynamic functional testing on a special test rig prior to shipping of each unit
  • Set-up data is given on a label or volume flow rate scale affixed to the unit
  • High control accuracy (even with upstream bend R = 1D)

Attachments

  • Compact controller: Compact unit consisting of controller, differential pressure transducer and actuator
  • Universal controller: Controller, differential pressure transducer and actuators for special applications

Accessories

  • Lip seals (factory fitted)

Useful additions

  • Secondary silencer Type TS

Construction features

  • Rectangular casing
  • Spigot on the fan end suitable for circular ducts to EN 1506 or EN 13180
  • Spigot with groove for lip seal
  • Connection on the room end suitable for air duct profiles
  • Baffle plate is fitted after the damper blade for optimum aerodynamic performance
  • Position of the damper blade indicated externally at shaft extension
  • Thermal and acoustic insulation (lining)

Materials and surfaces

  • Casing and damper blade made of galvanised sheet steel
  • Damper blade seal made of TPE plastic
  • Lining is mineral wool
  • Differential pressure sensor made of aluminium
  • Plastic bearings


Variant with acoustic cladding (-D)

  • Acoustic cladding made of galvanised sheet steel
  • Lining is mineral wool
  • Rubber elements for the insulation of structure-borne noise


Mineral wool

  • To EN 13501, fire rating class A1, non-combustible
  • RAL quality mark RAL-GZ 388
  • Biosoluble and hence hygienically safe according to the German TRGS 905 (Technical Rules for Hazardous Substances) and EU directive 97/69/EG
  • Faced with glass fibre fabric as protection against erosion through airflow velocities of up to 20 m/s
  • Inert to fungal and bacterial growth

Standards and guidelines

  • Hygiene conforms to VDI 6022
  • VDI 2083, air cleanliness class 3, and US standard 209E, class 100
  • Closed blade air leakage to EN 1751, class 4 (nominal sizes 125 and 160, class 3).
  • Nominal sizes 125 and 160 meet the general requirements, nominal sizes 200 – 400 meet the increased requirements of DIN 1946, part 4, with regard to the acceptable closed blade air leakage
  • Casing air leakage to EN 1751, class A

Maintenance

  • Maintenance-free as construction and materials are not subject to wear

Technical information

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

  • Function
  • Technical data
  • Quick sizing
  • Specification text
  • Order code
  • RELATED PRODUCTS

Functional description

The VAV terminal unit is fitted with two differential pressure sensors for measuring the volume flow rates, one in the cold air flow and one in the total air flow.

The control components (attachments) include two differential pressure transducers that transform the differential pressure (effective pressure) into an electric signal, two controllers, and two actuators; the control functions can be achieved with a Compact controller or with individual components.

In most cases, the setpoint value for the dual duct terminal unit comes from a room temperature controller.

The room temperature controller 'leads' the cold air volume flow controller and alters the setpoint for the cold air flow rate between 0 and the maximum volume flow Vmax. The controller compares the actual value with the setpoint value and alters the control signal of the damper actuator if there is a difference between the two values.

The warm/total air controller is set to the minimum volume flow rate Vmin and controls the warm air damper blade. As a consequence, a corresponding proportion of warm air is added. As the demand for cooling increases, the warm air damper blade closes such that eventually only cold air flows.

An integral attenuator reduces the noise that is created by the restriction of the airflow.

The airflow velocity at the room end is, due to the larger rectangular cross section, about half the velocity in the circular duct.

Volume flow rate ranges

The minimum differential pressure of VAV terminal units is an important factor in designing the ductwork and in rating the fan including speed control.

Sufficient duct pressure must be ensured for all operating conditions and for all control units. The measurement points for fan speed control must be selected accordingly.

The volume flow rates given for VAV terminal units depend on the nominal size and on the control component (attachment) that is installed. The table gives the minimum and maximum values for a VAV terminal unit. Some control components may only have a limited volume flow rate range. This applies in particular to control components with a static differential pressure transducer. For volume flow rate ranges for all control components refer to our Easy Product Finder design programme.

Nominal size
V
l/s
V
m³/h

∆pst min
Pa

∆pst min
Pa
∆V
± %
∆Vwarm
125 45 162 120 160 8 17
125 60 216 120 160 7 15
125 100 360 120 160 5 12
125 150 540 120 160 5 7
160 75 270 120 140 8 17
160 100 360 120 140 7 15
160 170 612 120 140 5 12
160 250 900 120 140 5 7
200 120 432 120 140 8 17
200 180 648 120 140 7 15
200 280 1008 120 140 5 12
200 405 1458 120 140 5 7
250 185 666 120 145 8 17
250 270 972 120 145 7 15
250 470 1692 120 145 5 12
250 615 2214 120 145 5 7
315 310 1116 120 160 8 17
315 420 1512 120 160 7 15
315 720 2592 120 160 5 12
315 1030 3708 120 160 5 7
400 505 1818 120 160 8 17
400 710 2556 120 160 7 15
400 1250 4500 120 160 5 12
400 1680 6048 120 160 5 7


Nominal sizes

125 – 400 mm

Volume flow rate range

45 – 1680 l/s or 162 – 6048 m³/h

Volume flow rate control range

Approx. 30 to 100% of the nominal volume flow rate

Minimum differential pressure

120 Pa

Maximum differential pressure

1000 Pa

Operating temperature

10 – 50 °C




Quick sizing tables provide a good overview of the room sound pressure levels 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 first selection criteria for the nominal size are the actual volume flow rates Vmin and Vmax. The quick sizing tables are based on generally accepted attenuation levels. If the sound pressure level exceeds the required level, a larger air terminal unit and/or a silencer is required.

TVM, Sound pressure level at differential pressure 150 Pa

Nominal size V Air-regenerated noise Case-radiated noise
Nominal size V
Nominal size V LPA LPA1 LPA2 LPA3
Nominal size l/s m³/h dB(A)

125

45

162

25

15

25

21

125

60

216

28

19

28

24

125

100

360

34

24

32

29

125

150

540

38

29

36

33

160

75

270

25

16

35

26

160

100

360

28

19

36

28

160

170

612

34

25

39

33

160

250

900

37

28

41

37

200

120

432

24

15

30

25

200

180

648

28

18

33

28

200

280

1008

31

21

36

33

200

405

1458

34

25

39

37

250

185

666

18

8

25

20

250

270

972

23

12

29

24

250

470

1692

30

19

34

30

250

615

2214

34

24

37

33

315

310

1116

21

8

30

27

315

420

1512

24

11

32

30

315

720

2592

31

18

35

33

315

1030

3708

37

26

38

35

400

505

1818

18

6

28

25

400

710

2556

23

9

32

29

400

1250

4500

31

16

37

35

400

1680

6048

37

21

40

38

① TVM, TVM-S

② TVM, TVM-S with secondary silencer TS

③ TVM-D, TVM-S-D


Rectangular VAV dual duct terminal units for dual duct systems with variable and constant volume flows, available in 6 nominal sizes.

Connecting spigots for warm and cold air arranged at an angle of 90°. Up to nominal size 200 an angle of 60° is also possible, hence ideal for for the refurbishment of older systems with dual duct units.

High control accuracy (even with upstream bend R = 1D).

Ready-to-commission unit which consists of the mechanical parts and the electronic control components. Each unit contains two averaging differential pressure sensors for volume flow rate measurement, one in the cold air flow and one in the total air flow, two damper blades, and an integral attenuator. Factory-assembled control components complete with wiring and tubing.

Differential pressure sensor with 3 mm measuring holes (resistant to dust and pollution)

On the fan end, spigot with groove for lip seal, suitable for connecting ducts to EN 1506 or EN 13180.

Room end suitable for the connection of air duct profiles.

Two baffle plates, one fitted after each damper blade for optimum acoustic and aerodynamic performance.

Casing with acoustic and thermal insulation.

Position of the damper blade indicated externally at shaft extension.

Closed blade air leakage to EN 1751, class 4 (nominal sizes 125 and 160, class 3).

Casing air leakage to EN 1751, class B.

Complies with VDI 2083, clean room class 3, and US standard 209E, class 100. Hygiene complies with VDI 6022, DIN 1946, part 4, as well as EN 13779 and VDI 3803.

Special characteristics

  • Integral differential pressure sensor with 3 mm measuring holes (resistant to dust and pollution)
  • Integral attenuator with at least 26 dB insertion loss at 250 Hz
  • Factory set-up or programming and aerodynamic function testing
  • Volume flow rate can later be measured and adjusted on site; additional adjustment device may be necessary
  • Inspection access for cleaning to VDI 6022

Materials and surfaces

  • Casing and damper blade made of galvanised sheet steel
  • Damper blade seal made of TPE plastic
  • Lining is mineral wool
  • Differential pressure sensor made of aluminium
  • Plastic bearings


Variant with acoustic cladding (-D)

  • Acoustic cladding made of galvanised sheet steel
  • Lining is mineral wool
  • Rubber elements for the insulation of structure-borne noise


Mineral wool

  • To EN 13501, fire rating class A1, non-combustible
  • RAL quality mark RAL-GZ 388
  • Biosoluble and hence hygienically safe according to the German TRGS 905 (Technical Rules for Hazardous Substances) and EU directive 97/69/EG
  • Faced with glass fibre fabric as protection against erosion through airflow velocities of up to 20 m/s
  • Inert to fungal and bacterial growth

Technical data

  • Nominal sizes: 125 to 400 mm
  • Volume flow rate range: 45 to 1680 l/s or 162 to 6048 m³/h
  • Volume flow rate control range: approx. 30 – 100 % of the nominal volume flow rate
  • Minimum differential pressure: 120 Pa
  • Maximum differential pressure: 1000 Pa

Attachments

Variable volume flow control with electronic Compact controller to switch an external control signal and an actual value signal for integration into the central BMS.

  • Supply voltage 24 V AC/DC
  • Signal voltages 0 – 10 V DC or 2 – 10 V DC
  • Possible override controls with external switches using volt-free contacts: CLOSED, OPEN, Vmin and Vmax
  • Volume flow rate control range: approx. 30 – 100 % of the nominal volume flow rate

Sizing data

  • Vwarm, min – Vwarm, max[m³/h]
  • Vcold, min – Vcold, max[m³/h]
  • Δpst[Pa]
  • LPA air-regenerated noise[dB(A)]
  • LPA Case-radiated noise[dB(A)]

This specification text describes the general properties of the product. Texts for variants can be generated with our Easy Product Finder design programme.

00131233_0

                                                                              Type
                                                                                                                                                                  TVM       Dual duct terminal unit
                                                                      

                                                                              Spigot arrangement
                                                                                    No entry: 90°
                                                                                                                                                                  S       60° (up to nominal size 200)
                                                                      

                                                                              Acoustic cladding
                                                                                    No entry: none
                                                                                                                                                                  D       With acoustic cladding
                                                                      

                                                                              Nominal size [mm]
                                                                                                                                                                  125                                                                              
                                                                                                                                                                  160                                                                              
                                                                                                                                                                  200                                                                              
                                                                                                                                                                  250                                                                              
                                                                                                                                                                  315                                                                              
                                                                                                                                                                  400                                                                              
                                                                      

 

                                                                              Accessories
                                                                                    No entry: none
                                                                                                                                                                  D2       Lip seal
                                                                      

                                                                              Attachments (control component)
                                                                                    Example
                                                                                                                                                                  BC0       Compact controller
                                                                                                                                                                  B13       Universal controller
                                                                      

                                                                              Operating mode
                                                                                                                                                                  E       Single
                                                                                                                                                                  M       Master
                                                                                                                                                                  F       Constant value
                                                                      

                                                                              Signal voltage range
                                                                                    For the actual and setpoint value signals
                                                                                                                                                                  0       0 – 10 V DC
                                                                                                                                                                  2       2 – 10 V DC
                                                                      

                                                                              Volume flow rates [m³/h or l/s]
                                                                                    Vwarm, min – Vwarm, max / Vcold, min – Vcold, max       for factory setting
                                                                      

Order example: TVM/160/BF0/E0/300–900 m³/h/0–900 m³/h

Spigot arrangement

90°

Acoustic cladding

Without

Nominal size

160 mm

Attachment

Compact controller

Operating mode

Single

Signal voltage range

0 – 10 V DC

Volume flow rate, warm

300 – 900 m³/h

Volume flow rate, cold

0 – 900 m³/h


 

Variants, Attachments, Dimensions and weight, Product details

  • Variants
  • ATTACHMENTS
  • Dimensions and weight
  • Product details

TVM-S

  • VAV terminal unit for the control of variable supply air volume flows
  • Connecting spigots for warm and cold air arranged at an angle of 60°

TVM-S-D

  • VAV terminal unit with acoustic cladding for the control of variable supply air volume flows
  • Connecting spigots for warm and cold air arranged at an angle of 60°
  • For rooms where the case-radiated noise of the unit is not sufficiently reduced by a false ceiling
  • The circular ducts for the room under consideration must have adequate acoustic insulation (provided by others) on the fan end
  • Acoustic cladding cannot be retrofitted

TVM

  • VAV terminal unit for the control of variable supply air volume flows
  • Connecting spigots for warm and cold air arranged at an angle of 90°

TVM-D

  • VAV terminal unit with acoustic cladding for the control of variable supply air volume flows
  • Connecting spigots for warm and cold air arranged at an angle of 90°
  • For rooms where the case-radiated noise of the unit is not sufficiently reduced by a false ceiling
  • The circular ducts for the room under consideration must have adequate acoustic insulation (provided by others) on the fan end
  • Acoustic cladding cannot be retrofitted

TVM, VARYCONTROL control components

Order code detail Controlled variable Controller Differential pressure transducer Actuator

Easy controller





Easy

Volume flow rate

Easy controller TROX

Dynamic, integral

Integral

Compact controller, dynamic





BC0

Volume flow rate

Compact controller with MP bus interface TROX/Belimo

Dynamic, integral

Integral

BM0

Volume flow rate

Compact controller with Modbus RTU interface (with connecting cable) TROX/Belimo

Dynamic, integral

Integral

BM0-J6

Volume flow rate

Compact controller with Modbus RTU interface (with socket) TROX/Belimo

Dynamic, integral

Integral

XB0

Volume flow rate

Compact controller TROX/Gruner

Dynamic, integral

Integral

LN0

Volume flow rate

Compact controller Siemens

Dynamic, integral

Integral

LK0

Volume flow rate

Compact controller with KNX interface Siemens

Dynamic, integral

Integral

Compact controller, static





SA0

Volume flow rate

Compact controller with SLC interface Sauter

Static, integral

Integral

SC0

Volume flow rate

Compact controller with SLC interface Sauter

Static, integral

Fast-running actuator, integral

Universal controller, dynamic





B13

Volume flow rate

Universal controller TROX/Belimo

Dynamic, integral

Actuator

LK0: Only for variants TVM and TVM-D (not for TVM-S and TVM-S-D)

Nominal size
ØD
mm
L
mm
B3
mm
H3
mm
L1
mm
B
mm
B1
mm
H
mm
H1
mm
A
mm
B4
mm
W
mm
m
kg
125 124 1385 300 236 1190 198 232 152 186 245 525 173 30
160 159 1630 410 236 1360 308 342 152 186 335 690 173 35
200 199 1920 560 281 1660 458 492 210 244 340 800 173 50


Nominal size
ØD
mm
L
mm
B3
mm
H3
mm
L1
mm
B
mm
B1
mm
H
mm
H1
mm
A
mm
B4
mm
W
mm
m
kg
125 124 1385 380 316 1215 198 232 152 186 225 525 160 45
160 159 1630 490 316 1410 308 342 152 186 295 690 180 55
200 199 1920 640 361 1710 458 492 210 244 300 800 180 80


Nominal size
ØD
mm
L
mm
B3
mm
H3
mm
L1
mm
B
mm
B1
mm
H
mm
H1
mm
A
mm
A1
mm
C
mm
C1
mm
W
mm
m
kg
125 124 1355 300 236 1205 198 232 152 186 150 170 125 240 265 28
160 159 1455 410 236 1255 308 342 152 186 200 150 145 295 265 34
200 199 1790 560 281 1590 458 492 210 244 200 125 170 350 265 50
250 249 2015 700 311 1765 598 632 201 235 250 160 200 415 540 65
315 314 2090 900 361 1840 798 832 252 286 250 130 240 535 540 90
400 399 2575 1000 446 2325 898 932 354 388 250 180 290 625 540 130


Nominal size
ØD
mm
L
mm
B3
mm
H3
mm
L1
mm
B
mm
B1
mm
H
mm
H1
mm
A
mm
A1
mm
C
mm
C1
mm
W
mm
m
kg
125 124 1355 380 316 1245 198 232 152 186 110 130 165 280 305 42
160 159 1455 490 316 1295 308 342 152 186 160 110 185 335 305 51
200 199 1790 640 361 1630 458 492 210 244 160 85 210 390 305 78
250 249 2015 780 391 1805 598 632 201 235 210 120 240 455 580 105
315 314 2090 980 441 1880 798 832 252 286 210 90 280 575 580 140
400 399 2575 1080 526 2365 898 932 354 388 210 140 330 665 580 200






Detail of flange 00137158_0
① Compressible seal, to be provided by others
② Flange


Installation details, Basic information and nomenclature

  • Installation details
  • Basic information and nomenclature

Installation and commissioning

  • Any installation orientation
  • Connecting spigots for warm and cold air arranged at an angle of 60° (TVM-S) or 90° (TVM)
  • Return edges of the casing with drilled holes suitable for threaded rods

Upstream conditions

The volume flow rate accuracy ΔV applies to a straight upstream section of the duct. Bends, junctions or a narrowing or widening of the duct cause turbulence that may affect measurement. Duct connections, e.g. branches off the main duct, must comply with EN 1505. Some installation situations require straight duct sections upstream.

Space required for commissioning and maintenance

Sufficient space must be kept clear near any attachments to allow for commissioning and maintenance. It may be necessary to provide sufficiently sized inspection access openings.

Principal dimensions

ØD [mm]

VAV terminal units made of stainless steel: Outside diameter of the spigot

VAV terminal units made of plastic: Inside diameter of the connecting spigot

ØD₁ [mm]

Pitch circle diameter of flanges

ØD₂ [mm]

Outside diameter of flanges

ØD₄ [mm]

Inside diameter of the screw holes of flanges

L [mm]

Length of unit including connecting spigot

L₁ [mm]

Length of casing or acoustic cladding

B [mm]

Duct width

B₁ [mm]

Screw hole pitch of flange (horizontal)

B₂ [mm]

Outside dimension of flange (width)

B₃ [mm]

Width of device

H [mm]

Duct height

H₁ [mm]

Screw hole pitch of flange (vertical)

H₂ [mm]

Outside dimension of flange (height)

H₃ [mm]

Unit height

n [ ]

Number of flange screw holes

T [mm]

Flange thickness

m [kg]

Unit weight including the minimum required attachments (e.g. Compact controller)

Acoustic data

fm [Hz]

Octave band centre frequency

LPA [dB(A)]

A-weighted sound pressure level of air-regenerated noise of the VAV terminal unit, system attenuation taken into account

LPA1 [dB(A)]

A-weighted sound pressure level of air-regenerated noise of the VAV terminal unit with secondary silencer, system attenuation taken into account

LPA2 [dB(A)]

A-weighted sound pressure level of case-regenerated noise of the VAV terminal unit, system attenuation taken into account

LPA3 [dB(A)]

A-weighted sound pressure level of case-regenerated noise of the VAV terminal unit with acoustic cladding, system attenuation taken into account


All sound pressure levels are based on 20 μPa.

Volume flow rates

Vnom [m³/h] and [l/s]

Nominal volume flow rate (100 %)

  • The value depends on product type and nominal size
  • Values are published on the internet and in technical leaflets, and stored in the Easy Product Finder design software.
  • Reference value for calculating percentages (e.g. Vmax)
  • Upper limit of the setting range and maximum volume flow rate setpoint value for the VAV terminal unit

Vmin unit [m³/h] and [l/s]

Technically possible minimum volume flow rate

  • The value depends on product type, nominal size and control component (attachment)
  • Values are stored in the Easy Product Finder design software
  • Lower limit of the setting range and minimum volume flow rate setpoint value for the VAV terminal unit
  • Depending on the controller, setpoint values below Vmin unit (if Vmin equals zero) may result in unstable control or shut-off

Vmax [m³/h] and [l/s]

Upper limit of the operating range for the VAV terminal unit that can be set by customers

  • Vmax can only be smaller than or equal to Vnom
  • In case of analogue signalling to volume flow controllers (which are typically used), the set maximum value (Vmax) is allocated to the setpoint signal maximum (10 V) (see characteristic)

Vmin [m³/h] and [l/s]

Lower limit of the operating range for the VAV terminal unit that can be set by customers

  • Vmin should be smaller than or equal to Vmax
  • Do not set Vmin smaller than Vmin unit, otherwise the control may become unstable or the damper blade may close
  • Vmin may equal zero
  • In case of analogue signalling to volume flow controllers (which are typically used), the set minimum value (Vmin) is allocated to the setpoint signal minimum (0 or 2 V) (see characteristic)

V [m³/h] and [l/s]

Volume flow rate

ΔV [± %]

Volume flow rate tolerance from setpoint value

ΔVwarm [± %]

Volume flow rate tolerance for the warm air flow of dual duct terminal units

Differential pressure

Δpst [Pa]

Static differential pressure

Δpst min [Pa]

Static differential pressure, minimum

  • The static minimum differential pressure is equal to the pressure loss of the VAV terminal unit when the damper blade is open, caused by flow resistance (sensor tubes, damper mechanism)
  • If the pressure on the VAV terminal unit is too low, the setpoint volume flow rate may not be achieved, not even when the damper blade is open
  • Important factor in designing the ductwork and in rating the fan including speed control
  • Sufficient duct pressure must be ensured for all operating conditions and for all terminal units, and the measurement point or points for speed control must have been selected accordingly to achieve this

Construction

Galvanised sheet steel

  • Casing made of galvanised sheet steel
  • Parts in contact with the airflow as described for the product type
  • External parts, e.g. mounting brackets or covers, are usually made of galvanised sheet steel

Powder-coated surface (P1)

  • Casing made of galvanised sheet steel, powder-coated RAL 7001, silver grey
  • Parts in contact with the airflow are powder-coated or made of plastic
  • Due to production, some parts that come into contact with the airflow may be stainless steel or aluminium, powder-coated
  • External parts, e.g. mounting brackets or covers, are usually made of galvanised sheet steel

Stainless steel (A2)

  • Casing made of stainless steel 1.4201
  • Parts in contact with the airflow are powder-coated or made of stainless steel
  • External parts, e.g. mounting brackets or covers, are usually made of galvanised sheet steel

Share page

Recommend this page

Recommend this page by sending a link by mail.

Fields marked with an (*) are required fields.

Share page

Thank you for your recommendation!

Your recommendation has been sent and should arrive shortly.

Contact

We are here for you

Visual contact Visual contact

Please specify your message and type of request.
Tel.: +60 6 678 8188 | Fax: +60 6 678 8288 (388)

Fields marked with an (*) are required fields.

Contact

Thank you for your message!

Visual contact Visual contact

Your message is send and will be processed shortly.
Our department for Service-Requests will contact you asap.
For general question regarding products or services you can also call:
Tel.: +60 6 678 8188 | Fax: +60 6 678 8288 (388)

Contact

We are here for you

Visual contact Visual contact

Please specify your message and type of request.
Tel.: +60 6 678 8188 | Fax: +60 6 678 8288 (388)

Attachment (max. 10MB)

Fields marked with an (*) are required fields.

Contact

Thank you for your message!

Visual contact Visual contact

Your message is send and will be processed shortly.
Our department for Service-Requests will contact you asap.
For general question regarding products or services you can also call:
Tel.: +60 6 678 8188 | Fax: +60 6 678 8288 (388)