Type AT

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

Ventilation grille with droplet shaped blades

  • Nominal sizes 150 x 100 - 1200 x 600 mm
  • Volume flow rate range 13 – 2170 l/s or 47 – 7812 m³/h
  • Grille face made of aluminium with powder-coat finish
  • Front border 32 mm
  • Concealed screw fixing or countersunk holes


Optional equipment and accessories

  • Grille face in RAL CLASSIC colours
  • Installation subframe
  • Attachments for volume flow rate balancing and air direction control
  • Concealed fixing or countersunk holes

AT-A/825×225 00135813_0


  • Application
  • Description

Application

  • Ventilation grille of Type AT 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
  • Angled front border
  • Concealed screw fixing, or countersunk holes
  • Optional installation subframe

Nominal sizes

  • Nominal length: 150mm to 1200 mm (50 mm increments)
  • Nominal height: 100 mm up to 600 mm (50 mm increments)


Other dimensions upon request

Variants

Front order

  • 32 mm wide


Fixing

  • Countersunk holes
  • X: Without holes (border drilling by customer)
  • S11: Concealed fixings (in combination with installation subframe)


Parts and characteristics

  • Angled front border with chamfered inside edge
  • Individually adjustable, horizontal blades
  • Factory fitted perimeter seal

Attachments

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

Accessories

  • Installation subframe: For the fast and simple installation of ventilation grilles

Construction features

  • Asymmetrically supported blades

Materials and surfaces

  • Border and blades made of aluminium
  • P3: Border and blades powder-coated, RAL9010:20%
  • P6: 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

References

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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.: +44 (0)1842 754545 | Fax: +44 (0)1842 763051