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 q_vmin and q_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.

 

 

TVE, sound pressure level at differential pressure 150 Pa

NS	qv [l/s]	qv [m³/h]	Air-regenerated noise [dB(A)]				Case-radiated noise
			①	②	③	④	⑤	⑥
100	4	14	28	17	<15	<15	<15	15
100	35	127	45	31	26	23	28	17
100	67	241	50	34	29	26	33	22
100	98	354	53	36	31	27	36	25
125	6	21	26	<15	<15	<15	<15	<15
125	58	207	45	33	29	25	28	17
125	109	393	50	40	36	33	33	22
125	161	579	53	43	39	36	37	26
160	10	35	37	28	23	19	17	<15
160	93	333	48	38	34	30	28	21
160	175	631	50	40	36	32	31	24
160	258	929	50	40	36	33	33	26
200	15	55	27	<15	<15	<15	<15	<15
200	150	541	46	35	30	27	26	<15
200	285	1027	48	38	34	31	31	16
200	420	1513	50	40	36	33	35	20
250	24	87	35	25	18	<15	19	<15
250	228	822	47	40	36	34	33	18
250	433	1558	48	42	39	37	38	23
250	637	2293	49	44	41	39	40	25

① TVE, L_PA
② TVE, L_PA1, with secondary silencer CS/CF, insulation thickness 50 mm, length 500 mm
③ TVE, L_PA1, with secondary silencer CS/CF, insulation thickness 50 mm, length 1000 mm
④ TVE, L_PA1, with secondary silencer CS/CF, insulation thickness 50 mm, length 1500 mm
⑤ TVE, L_PA2
⑥ TVE-D, L_PA3
The sound power levels for calculating the sound pressure levels were measured in the TROX laboratory according to DIN EN ISO 5135 - see "Basic information and nomenclature".

 

Circular VAV terminal units for variable and constant air volume systems, suitable for supply or extract air, available in five nominal sizes. High control accuracy even in case of unfavourable upstream conditions. Control range at least 1:25. Differential pressure detection and control via the control damper blade. Transmission of effective pressure tubeless through differential pressure channel in the shaft. Closed blade air leakage to EN 1751: at least class 3, from NS 200: class 4. Casing air leakage to EN 1751, class C. Ready-to-commission unit which consists of the mechanical parts and the factory installed electronic control component. Position of the damper blade can be seen from the outside on the control component. Damper blade is factory set to open position which allows ventilation airflow even without control.

Special characteristics

• Highly effective pressure signal at a small angle of attack
• Factory set-up or programming and aerodynamic function testing
• Volume flow rate can be measured and subsequently adjusted on site; additional adjustment tool may be necessary (depending on the variant of the control component)
• Effective tubeless pressure monitoring via damper blade
• Effective pressure transmission through pressure channel in shaft
• Suitable for any flow direction due to dynamic transducer
• Any installation orientation even with static transducers
• Suitable for airflow velocity of 0.5 – 13 m/s
• Compact dimensions for use in confined ceiling areas

Materials and surfaces

Galvanised sheet steel construction

• Casing made of galvanised sheet steel
• Control damper blade, effective pressure sensor and shaft made of plastic, PA6, UL94, flame retardant (V-0)
• Damper blade seal made of plastic, TPU, microbacterial resistant
• Plastic bearings

Powder-coated construction (P1)

• Casing made of galvanised sheet steel, surface powder coated, silver grey (RAL 7001)
• Control damper blade, effective pressure sensor and shaft made of plastic, PA6, UL94, flame retardant (V-0)
• Damper blade seal made of plastic, TPU, microbacterial resistant
• Plastic bearings

Stainless steel construction (A2)

• Casing made of stainless steel 1.4301
• Control damper blade, effective pressure sensor and shaft made of plastic, PA6, UL94, flame retardant (V-0)
• Damper blade seal made of plastic, TPU, microbacterial resistant
• Plastic bearings

Acoustic cladding

• Variant with acoustic cladding (-D)
• Acoustic cladding made of galvanised sheet steel
• Rubber profile for the insulation of structure-borne noise
• Lining is mineral wool

Mineral wool

• Tested 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/EC

Construction

• Galvanised sheet steel
• P1: Powder-coated, silver grey (RAL 7001)
• A2: Stainless steel

Materialien und Oberflächen

Galvanised sheet steel construction

• Casing made of galvanised sheet steel
• Control damper blade, effective pressure sensor and shaft made of plastic, PA6, UL94, flame retardant (V-0)
• Damper blade seal made of plastic, TPU, microbacterial resistant
• Plastic bearings

Powder-coated construction (P1)

• Casing made of galvanised sheet steel, surface powder coated, silver grey (RAL 7001)
• Control damper blade, effective pressure sensor and shaft made of plastic, PA6, UL94, flame retardant (V-0)
• Damper blade seal made of plastic, TPU, microbacterial resistant
• Plastic bearings

Stainless steel construction (A2)

• Casing made of stainless steel 1.4301
• Control damper blade, effective pressure sensor and shaft made of plastic, PA6, UL94, flame retardant (V-0)
• Damper blade seal made of plastic, TPU, microbacterial resistant
• Plastic bearings

Acoustic cladding

• Variant with acoustic cladding (-D)
• Acoustic cladding made of galvanised sheet steel
• Rubber profile for the insulation of structure-borne noise
• Lining is mineral wool

Mineral wool

• Tested 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/EC

Technichal Data

• Minimum differential pressure: 5 – 82 Pa
  
  

Maximum differential pressure

• Control component with dynamic transducer: 900 Pa
• Control component with static transducer: 600 Pa

Auslegungsdaten

• q_ᵥ _______________________ [m³/h]
• Δ_pst _______________________ [Pa]

 Air-regenerated noise

• L_PA _______________________ [dB(A)]

 

Case-radiated noise

 

• L_PA _______________________ [dB(A)]

TVE

–

D

–

P1

–

FL

/

100

/

D2

/

XB0

/

V

0

/

200 – 900

m³/h

|

|

|

|

|

|

|

|

|

|

|

1

2

3

4

5

6

7

8

9

10

11

,

TVE	–	D	/	200	/	D2	/	Easy
|		|		|		|		|
1		2		5		6		7

1 Type

TVE Volume flow controller, circular

 

2 Acoustic cladding

No entry: none

D With acoustic cladding

 

3 Material (not Easy)

No entry: galvanised sheet steel

P1 Duct powder-coated, RAL 7001, silver grey

A2 Duct made of stainless steel

 

4 Duct interface (not Easy)

No entry: Insert with groove for double lip seal for duct to EN1506

FL Flanges on both ends

 

5 Nominal size [mm]

100, 125, 160, 200, 250

 

6 Accessories

No entry: none

D2 Double lip seal both sides (only with insertion with groove)

G2 Matching flange to each flange (only with FL)

 

7 Attachment (control component)

Easy Volume flow controller, dynamic, interface analog, setting q_vmin and q_vmax with potentiometers

XB0 Volume flow controller, dynamic, interface analogue

XM0 Volume flow controller, analogue interface and Modbus RTU, display

XM0-J6 Volume flow controller, analogue and Modbus RTU interface, display, RJ12 socket (for X-AIRCONTROL)

XS0 Volume flow controller, static, interface analogue and Modbus RTU, display

XS0-J6 Volume flow controller, static, interface analogue and Modbus RTU, display, RJ12 socket (for X-AIRCONTROL)

 

8 Operating mode (not Easy)

V Variable, setpoint value range (not for XM0-J6, XS0-J6)

F Constant value, a setpoint value (not for XM0-J6, XS0-J6)

M Modbus RTU interface (only selectable with XM0, XS0 attachment, mandatory for XM0-J6, XS0-J6)

 

9 Signal voltage range (not with Easy, operating mode M)

0 0 – 10V DC

2 2 – 10V DC

 

10 Operating values ​​for factory setting (not for Easy)

Volume flow rates in [m³/h or l/s] see unit

q_vconst (in operating mode F)

q_vmin-qvmax (in operating mode V, M)

 

11 Unit (not Easy)

m³/h Volume flow rates in m³/h

l/s Volume flow rates in l/s

,

1 Type

TVE VAV terminal unit

 

2 Acoustic cladding

No entry: none

D With acoustic cladding

 

5 Nominal size [mm]

100, 125, 160, 200, 250

 

6 Accessories

No entry: none

D2 Double lip seal both sides

 

7 Attachments (control components)

Easy Easy controller

Order example: TVE/200/D2/XB0/V0/500–1200 m³/h

Acoustic cladding	Without
Material	Galvanised sheet steel
Flange	Without
Nominal size	200 mm
Accessories	Double lip seal both sides
Attachment	Compact controller
Operating mode	Variable
Signal voltage range	0 – 10V DC
Volume flow rate	500 – 1200 m³/h

,

Order example: TVE-D/125/D2/Easy

Acoustic cladding	With
Material	Galvanised sheet steel
Nominal size	200 mm
Accessories	Double lip seal both sides
Attachment	Easy controller

 

TVE control components VARYCONTROL

 

Attachment	Controlled variable	Category, Interface, Characteristics	Differential pressure transmitter	Actuator
Easy	qv	Easy controller	Dynamic integrated	integrated
XB0	qv	Compact controller	Dynamic integrated	integrated
XM0	qv	Compact controller Analogue and Modbus RTU Display	Dynamic integrated	integrated
XM0–J6	qv	Compact controller Analogue and Modbus RTU with RJ12 socket Display	Dynamic integrated	integrated
XS0	qv	Compact controller Analogue and Modbus RTU Display	Static integrated	integrated
XS0–J6	qv	Compact controller Analogue and Modbus RTU with RJ12 socket Display	Static integrated	integrated

q_v Volume flow rate