Type LVS

For extract air

Circular disc valves with manually adjustable annular gap

  • Nominal sizes 100, 125, 160, 200 mm
  • Volume flow rate range 10 – 50 l/s or 36 – 180 m³/h
  • Diffuser face made of formed sheet steel, powder-coated
  • For variable and constant volume flows
  • For ceiling and wall installation
  • Easy to install
  • Volume flow rate balancing by simply turning the valve disc
  • Inexpensive solution for small rooms

LVS 00131778_0


  • Application
  • Description

Application

  • Type LVS disc valves are used as extract air devices in small rooms
  • For variable and constant volume flows
  • For walls and suspended ceilings

Special characteristics

  • Continuous volume flow rate balancing by turning the valve disc
  • Easy to install

Nominal sizes

  • 100, 125, 160, 200

Parts and characteristics

  • Valve disc with threaded spindle and lock nut
  • Valve casing including cross bar with orifice for the threaded spindle
  • Installation subframe that accommodates the disc valve

Materials and surfaces

  • Valve casing and valve disc made of galvanised sheet steel
  • Installation subframe, cross bar, threaded spindle and lock nut made of galvanised steel
  • Foam seal
  • Valve casing and valve disc powder-coated RAL 9010, pure white

Standards and guidelines

  • Sound power level of the air-regenerated noise measured according to EN ISO 5135

Maintenance

  • Maintenance-free as construction and materials are not subject to wear
  • Inspection and cleaning to VDI 6022

Technical information

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

  • Function
  • Technical data
  • Quick sizing
  • Specification text
  • Order code
Schematic illustration 00179919_0
① Valve disc
② Valve casing
③ Cross bar
④ Threaded spindle with lock nut


Functional description

Extract air valves extract air from rooms and lead it into the extract air part of the air conditioning system.

Type LVS disc valves have a valve disc that can be turned. This valve disc facilitates volume flow rate balancing for commissioning.

Nominal sizes

100, 125, 160, 200 mm

Minimum volume flow rate

10 – 25 l/s or 36 – 90 m³/h

Maximum volume flow rate

25 – 50 l/s or 90 – 180 m³/h


Quick sizing tables provide a good overview of the volume flow rates and corresponding sound power levels and differential pressures.

Sizing example

Given data

V = 25 l/s (90 m3/h)

Extract air valve

Maximum sound power level 30 dB(A)

Quick sizing

Type LVS

Selectable nominal sizes: 125, 160, 200

Selected: LVS/125

LVS/100, LVS/125, sound power level and total differential pressure

Nominal size V Gap width
Nominal size V 5 mm 0 mm –5 mm
Nominal size V Δpt LWA Δpt LWA Δpt LWA
Nominal size l/s m³/h Pa dB(A) Pa dB(A) Pa dB(A)

100

10

36

8

<15

14

<15

30

16

100

15

54

19

<15

32

19

67

26

100

20

72

33

22

56

27

119

33

100

25

90

52

28

88

32

186

39

125

15

54

9

<15

13

<15

22

<15

125

20

72

15

<15

23

<15

40

19

125

25

90

24

<15

36

18

62

24

125

30

108

35

18

52

23

90

29


LVS/160, sound power level and total differential pressure

Nominal size V Gap width
Nominal size V 5 mm –5 mm –10 mm
Nominal size V Δpt LWA Δpt LWA Δpt LWA
Nominal size l/s m³/h Pa dB(A) Pa dB(A) Pa dB(A)

160

20

100

9

<15

24

<15

43

17

160

25

90

14

<15

38

18

67

24

160

30

108

20

<15

55

23

96

29

160

35

126

27

16

75

27

131

34


LVS/200, sound power level and total differential pressure

Nominal size V Gap width
Nominal size V 5 mm –5 mm –15 mm
Nominal size V Δpt LWA Δpt LWA Δpt LWA
Nominal size l/s m³/h Pa dB(A) Pa dB(A) Pa dB(A)

200

25

90

4

<15

9

<15

21

<15

200

35

126

9

<15

17

<15

41

20

200

45

162

14

<15

28

16

68

27

200

50

180

18

<15

34

19

84

30


Circular disc valves as extract air devices, preferably for small rooms. For installation into walls and suspended ceilings.

Ready-to-install component which consists of a valve casing with cross bar, a valve disc with threaded spindle, and an installation subframe.

The valve disc can be turned for volume flow rate balancing. The valve setting can be fixed with a lock nut.

Spigot suitable for ducts to EN 1506 or EN 13180.

Sound power level of the air-regenerated noise measured according to EN ISO 5135.

Special characteristics

  • Continuous volume flow rate balancing by turning the valve disc
  • Easy to install

Materials and surfaces

  • Valve casing and valve disc made of galvanised sheet steel
  • Installation subframe, cross bar, threaded spindle and lock nut made of galvanised steel
  • Foam seal
  • Valve casing and valve disc powder-coated RAL 9010, pure white

Technical data

  • Nominal sizes: 100, 125, 160, 200 mm
  • Minimum volume flow rate: 10 – 25 l/s or 36 – 90 m³/h
  • Maximum volume flow rate: 25 to 50 l/s or 90 to 180 m³/h

Sizing data

  • V _______________________ [m³/h]

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

00227998_0

 Type
LVS Extract air valve

 

 Nominal size [mm]
100
125
160
200

Order example: LVS/160

Nominal size

160


 

Dimensions and weight

  • Dimensions and weight

LVS

Nominal size
ØD1
mm
L1
mm
L2
mm
L4
mm
ØD
mm
ØD2
mm
ØD3
mm
m
kg
100 132 8 50 32 99 122 114 0.20
125 162 9 50 38 124 148 140 0.29
160 192 10 50 43 159 184 176 0.44
200 245 11 50 52 199 225 217 0.59


Installation details, Commissioning, Basic information and nomenclature

  • Installation details
  • Commissioning
  • Basic information and nomenclature
Installation flush with the wall or ceiling, with installation subframe 00153312_0


Installation and commissioning

  • Installation flush with the wall or ceiling
  • Perform volume flow rate balancing by turning the valve disc, then tighten the lock nut to fix the valve disc in the required position


These are only schematic diagrams to illustrate installation details.

Installation opening

Nominal size
Ød
mm
100 104
125 129
160 164
200 204


Adjustment range 00206889_0


Principal dimensions

ØD [mm]

Outer diameter of the spigot

ØD₁ [mm]

Outer diameter of the diffuser face

L₁ [mm]

Length of the face cover ring

L₂ [mm]

Installed length

m [kg]

Weight

Nomenclature

LWA [dB(A)]

A-weighted sound power level of air-regenerated noise

V [m³/h] and [l/s]

Volume flow rate

Δtz [K]

Supply air to room air temperature difference

Δpt [Pa]

Total differential pressure


All sound power levels are based on 1 pW.

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