00137759_0

VAT-A/825×225


00137759_0
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Type VAT

Ventilation grilles, made of aluminium, with individually adjustable, vertical blades

Ventilation grille with droplet shaped blades

  • Nominal sizes 225 × 75 – 1225 × 525 mm
  • Volume flow rate range 11 – 2000 l/s or 40 – 7200 m³/h
  • Grille face made of aluminium with anodised finish
  • Front border, 23 mm or 27 mm wide
  • Concealed screw fixing


Optional equipment and accessories

  • Grille face in RAL CLASSIC colours
  • Installation subframe
  • Installation subframe for fitting filter media
  • Attachments for volume flow rate balancing and air direction control
  • Spring clip fixing

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Construction
EF
Rear assemblies
A
AG
AS
D
DG
Length
225
325
425
525
625
825
1025
1225
Height
75
125
225
325
425
525
Installation subframe
A1
B1
Fixing
G11
A11
B11
H11
Surface
P0
P1
Select state colour
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Specification text: VAT-AG/825x225/A1/B11
Updating specification text

Ventilation grilles, rectangular, made of aluminium, for supply and extract air. Aesthetic sloped border with chamfered inside edge Preferably for wall and sill installation but also suitable for rectangular ducts. Ready-to-install component which consists of a border and individually adjustable, vertical blades. Concealed screw fixing, spring clip fixing or countersunk holes, for installation into an installation subframe or fixing onto an installation surface. Sound power level of the air-regenerated noise measured according to EN ISO 5135.

SPECIAL CHARACTERISTICS
- Individually adjustable blades
- Front border in two widths
- Concealed screw fixing, spring clip fixing or countersunk holes
- Optional installation subframe and casing for the fitting of filter media

MATERIALS AND SURFACES
- Border and blades made of aluminium
- Border and blades anodised, E6-C-0, natural colour
- P1: Border and blades powder-coated, RAL CLASSIC colour

VARIANTS
Rear assemblies: Opposed blade action volume control damper
Length: 825
Height 225
Installation subframe For front border width F = 27 mm
Fixing Spring clip fixing, F = 27 mm
Surface Anodised, E6-C-0, natural colour
Select state colour

PRODUCT DATA:
Strategy: Supply air
Ceiling effect Yes
Volume flow qv 2.455 m³/h
Distance l 3,0 m
Spacing b in a line of outlets b > 0,45 m
Supply air to room air temperature difference ΔtSUP,c -4 K
Effective air velocity veff 6,0 m/s
Velocity at l vl, max 4,5 m/s
Temperature difference at l Δtl -2,75 K
Induction ratio i 2,7
Distance to centre b0.2 0,3 m
Airstream drop or rise y n.V. m
Thermal output – cooling Φc -3.286 W

Acoustic results
damper blade position open damper blade position 50 % damper blade position 25 %
Δpt [Pa] 27 67 138
LWA [dB(A)] 40 54 65
63Hz [dB] 42 51 50
125Hz [dB] 43 50 52
250Hz [dB] 40 49 52
500Hz [dB] 40 52 58
1kHz [dB] 34 50 59
2kHz [dB] 24 45 57
4kHz [dB] 16 38 53
8kHz [dB] < 15 32 63
LWNC [dB] 35 49 65
LWNR [dB] 36 50 68

Manufacture of the planning: TROX GmbH
Series: VAT-AG/825x225/A1/B11

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Application

Application

  • Ventilation grille of Type VAT as supply air or extract air variant for comfort zones and industrial zones
  • Directed supply air discharge for mixed flow ventilation
  • Blades are adjustable to meet different local requirements
  • For variable and constant volume flows
  • For supply air to room air temperature differences from –12 to +4 K
  • For installation in walls, sills and rectangular ducts

Special characteristics

  • Individually adjustable blades
  • Front border in two widths
  • Concealed screw fixing, spring clip fixing or countersunk holes
  • Optional installation subframe and casing for the fitting of filter media

Nominal sizes

  • Nominal length: 225, 325, 425, 525, 625, 825, 1025, 1225 mm
  • Nominal height: 75, 125, 225, 325, 425, 525 mm


Other dimensions upon request

Description

Variants

Front border

  • 27 mm wide
  • G11: 23 mm wide


Fixing

  • Concealed screw fixing
  • G11: Concealed screw fixing (23 mm)
  • A11: Countersunk holes (only 27 mm)
  • B11: Spring clip fixing (27 mm)
  • H11: Spring clip fixing (23 mm)

Parts and characteristics

  • Sloped border with chamfered inside edge
  • Individually adjustable, vertical blades
  • Factory fitted perimeter seal

Attachments

  • AG, AS, D, DG: For volume flow rate balancing and for air direction control

Accessories

  • Installation subframe: For the fast and simple installation of ventilation grilles
  • Filter casing: Frame with filter element and spring clip fixing (only with 27 mm wide front border)

Construction features

  • Asymmetrically supported blades

Materials and surfaces

  • Border and blades made of aluminium
  • Border and blades anodised, E6-C-0, natural colour
  • P1: Border and blades powder-coated, RAL CLASSIC colour

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

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Our department for Service-Requests will contact you asap.
For general question regarding products or services you can also call:
Tel.: +43 1 250 43-0| Fax: +43 1 250 43 34