NBS Source
I'm a manufacturer

Application

  • Suitable for use with cooker hoods and extraction fans with a maximum output of 750 m³ per hour.
  • This is a plastic component, and therefore not suitable for use within external walls of high-rise buildings requiring non-combustible materials (i.e. those 18 m high or more complying to Regulation 7(2) and Approved Document B, and those 11 m high or more complying to 2.7 of Building (Scotland) Technical Handbook 2019).

Description

Circular louvre grille with spring clips and removable flyscreen.


Features and benefits:

  • Inverted fixed open louvres allow a high air flow and flush finish.
  • UV-stabilized to slow down the effects of sunlight.
  • Louvre ventilators with flyscreens must not be used to supply combustion and cooling air to boilers, stoves and fires.


General information

Color

White

Guidance for specification option:

 As standard – bespoke options available.

Material

Plastic

Guidance for specification option:

UV-stabilized high-impact polystyrene.

Size

156 mm

Guidance for specification option:

Overall external diameter.

Uniclass

Pr_30_59_96_93 Ventilation gratingsPrimary

CAWS

U90/310 Ventilators for heating appliances

U90/310 Ventilators for heating appliances

Specification data - Ventilation gratings

Material

Plastic.

Guidance for specification option:

UV-stabilized high-impact polystyrene.


Colour

White.

Guidance for specification option:

As standard – bespoke options available.


Accessories

Spring clamps.

Guidance for specification option:

Into tubes and holes any size from 100–150 mm diameter.

Flyscreen.

Guidance for specification option:

The flyscreen MUST be removed if the grille is supplying combustion and cooling air to a boiler, stove or fire

Free area

100 mm (4″) diameter.

Guidance for specification option:

4873 mm² (48.73 cm²) per unit without flyscreen/ 2912 mm² (29.12 cm²) per unit with flyscreen.

125 mm (5″) diameter.

Guidance for specification option:

7618 mm² (76.18 cm²) per unit without flyscreen/ 4641 mm² (46.41 cm²) per unit with flyscreen.

150 mm (6″) diameter.

Guidance for specification option:

8900 mm² (89 cm²) per unit without flyscreen/ 6062 mm² (60.62 cm²) per unit with flyscreen.

Box size

35 x 26 x 23 cm.

Guidance for specification option:

Overall maximum length x height x depth.

Box weight

1.95 kg.

Sustainability data

Country of material origin

United Kingdom

Country of product manufacture

United Kingdom