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Description

Heavy duty intumescent air transfer grilles designed for use in the aggressive environments often found in industrial premises.

Features and benefits:

  • Can be used to provide fire resistance of up to 180 minutes.
  • Complete seal achieved in approximately two minutes when tested in accordance with with BS 476: Parts 20 and 22.
  • Exhibit excellent airflow characteristics and give silent efficient operation with normal to high air velocities.
  • Can be used in ducting where the steel and aluminium casing protects the intumescent material from the corrosive effect of hot gases travelling at high velocities.
  • Can be used in high humidity.
  • Have a steel frame which contributes to fire resistance by preventing the inward deformation of surrounding structures thus protecting the intumescent materials.
  • Are resistant to vibration damage.
  • Are suitable for horizontal and vertical applications.
  • Are suitable for external applications.
  • Suitable for use in numerous applications - doors, walls, ducts, floors and ceilings.
  • Holds CERTIFIRE CF564 certification.

General information
Size

Not required

As drawing ___

200 x 200 mm

300 x 300 mm

400 x 400 mm

450 x 450 mm

500 x 500 mm

600 x 600 mm

Uniclass 2015 Fire-resisting air transfer grilles (Pr_30_59_94_31)
Specification data
Product Reference

Lorient High Performance intumescent fire damper Ref: LVH44

Lorient High Performance intumescent fire damper, circular Ref: LVHC44

Lorient High Performance intumescent fire and smoke damper Ref: LVH20S

Lorient High Performance intumescent fire and smoke damper Ref: LVH44S

Fire resistance

60 minutes

90 minutes

120 minutes

180 minutes

Diameter

Not required

For LVHC44 damper

As drawing ___

100 mm

200 mm

300 mm

400 mm

500 mm

600 mm

Size

Not required

As drawing ___

200 x 200 mm

300 x 300 mm

400 x 400 mm

450 x 450 mm

500 x 500 mm

600 x 600 mm

Cover -
Grille

Required

Not required

Material

Aluminium

Pressed steel

Finish

Beige

Milled

Natural satin anodized

Primed for site painting

Silver

White

Fitting: Screwed and bedded in Lorient intumescent mastic. -
Mastic colour

Silver

White

Smoke control system

Not required

Talkback

Standard product features

Dimensions

  • LVH44 / LVHC44: 44 mm thick.
  • LVH54: 54 mm thick.

Free area

  • LVH44: 60% approximately.
  • LVH54: 60% approximately.
  • LVHC44: 60% approximately.
  • LVH20S: 30% approximately.
  • LVH44S: 30% approximately.

Product Options

Sizes:

Grilles are available in a range of widths and heights from 100–600 mm. Larger sizes can be produced dependent upon application - please refer to Lorient's Technical Department. Circular grilles are available in diameters up to 600 mm.

Smoke control system:

The LVH20S and LVH44S are designed to be used with the Talkback smoke control system. The Talkback system can control up to sixteen dampers/ shutters and features a status monitoring display.

Literature
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