LVN25S Intumescent Air Transfer Grille

LVN25S Intumescent Air Transfer Grille

Lorient Polyproducts Ltd Third party certifications:
  • Certifire Certificate

    Certifire Certificate

    Certificate type

High-performance non-vision fire and smoke air transfer grille.

Jump to:
+44 (0)1626 834252 www.lorientuk.com

Application

Suitable for FD30 and FD60 doors, greater than 50 mm thick. Must be installed in the vertical plane.


In applications where high levels of humidity or wetness are anticipated, contact the manufacturer's Technical Department for alternatives.

Description

High-performance non-vision fire and smoke air transfer grille.

Uses the same intumescent louvred slat configuration as the LVN25, but also incorporates an electro-mechanically operated smoke shutter mechanism.


Features and benefits:

  • Can provide up to 60 minutes' fire and smoke resistance.
  • Contains cold smoke and toxic gases remote from source of fire.
  • Simple installation.
  • Auto reset and failsafe.
  • Safe low d.c. voltage.
  • Status reporting and auto-cycling via Talkback Damper Control Monitor (DCM), specified separately.
  • Optional audio warning facility.
  • Connects to fire panel and/ or Building Management System (BMS).
  • BMS alarm notification via Alarm Monitoring System (AMS).
  • Nominal 5 mA current open/ closed
  • Maximum 200 mA in operation.
  • Allows bi-directional airflow.
  • Louvred slats give privacy.
  • Certifire approved CF 564.

General information

Color

Silver

Material

PVC

Steel

Size

198 x 198 mm

198 x 248 mm

198 x 298 mm

198 x 348 mm

198 x 398 mm

Show more

Uniclass 2015

Pr_30_59_94_31 Fire-resisting air transfer grillesPrimary

CAWS

P21/66 Door mounted air transfer grilles

P21/895 Door mounted air transfer grilles

P21/896 Door mounted fire resisting air transfer grilles

Specification data - Fire-resisting air transfer grilles Enhanced data

Standard

Fire: To BS 476-20 and 22:1987; Smoke: To BS 476-31.1:1983 (shutterplate).

Smoke: BS 476-31.1:1983 (shutterplate).

Third party certification

Certifire CF564.

Category

Intumescent.

Size

Each air transfer grille is manufactured 2 mm less than a nominal aperture size to provide clearance when installed in a duct or other aperture of the same nominal dimensions. e.g. a 198 x 198 mm nominal size air transfer grille will suit a 200 x 200 mm aperture.


Thickness: 2 x 25-mm thick pieces.

198 x 198 mm.

Standard.

198 x 248 mm.

198 x 298 mm.

198 x 348 mm.

198 x 398 mm.

248 x 198 mm.

248 x 248 mm.

Standard.

248 x 298 mm.

248 x 348 mm.

248 x 398 mm.

298 x 198 mm.

298 x 248 mm.

298 x 298 mm.

Standard.

298 x 348 mm.

298 x 398 mm.

348 x 198 mm.

348 x 248 mm.

348 x 298 mm.

348 x 348 mm.

Standard.

348 x 398 mm.

398 x 198 mm.

398 x 248 mm.

398 x 298 mm.

398 x 348 mm.

398 x 398 mm.

Standard.

Other.

Consult manufacturer for options and insert requirements.

Fire resistance (minimum)

60 minutes.

EI rating of 60 minutes in accordance with BS 476 (Test report: Applus 19/19940-1428).

Material and finish

Rigid PVC slats with an intumescent core, steel flange.

Colour

Silver.

Execution

Positional requirements:

  • Certifire: The upper edge of the grille shall be no higher than 800 mm from floor level.
  • Test Report Applus 19/19940-1428: The upper edge of the grille shall be no higher than 1350 mm from floor level.

-

Fixing

Screwed into door with an aperture lined with Lorient intumescent liner (B24402).

Free area

30% approx.

Literature

Lorient Air Transfer Grille Product Selector

Lorient Air Transfer Grille Product Selector

Lorient Air Transfer Grille Datasheets

Lorient Air Transfer Grille Datasheets

Air Transfer Grille Installation Manual

Air Transfer Grille Installation Manual

Fire and Smoke Resistant Dampers / Air Transfer Grilles

Fire and Smoke Resistant Dampers / Air Transfer Grilles

Third party certifications

  • CF564

Similar products from Lorient Polyproducts Ltd

LVC40 Air Transfer Grille

LVH44 Intumescent Air Transfer Grille

LVH44 Intumescent Air Transfer Grille

LVHC44 Air Transfer Grille

LVN20 Intumescent Air Transfer Grille - Non-vision

LVN20 Intumescent Air Transfer Grille - Non-vision

LVN25 Air Transfer Grille

LVV40 Intumescent Air Transfer Grille

LVV40 Intumescent Air Transfer Grille