NBS Source
I'm a manufacturer

LVN20S Fire Plus Smoke Resistant Air Transfer Grille

Verified by manufacturer 1 month ago

Lorient Third party certifications:
  • Certifire Certificate

    Certifire Certificate

    Certificate type

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

Jump to:
+44 (0)1626 834252 Website

Application

Suitable for doors.

Note: in applications where high levels of humidity or wetness are anticipated, Consult the manufacturer's Technical Department for alternatives.

Description

The LVN20S provides a unique solution to the problem of containing both fire and smoke in emergency conditions yet offering good air transfer through doors in everyday use. Using the same intumescent louvred slat configuration as the LVN20 but incorporating an electro mechanically operated smoke shutter mechanism. Can provide up to 60 minutes fire and smoke resistance


Features and benefits:

  • Contains cold smoke plus toxic gases remote from source of fire.
  • Simple installation.
  • Auto reset plus failsafe.
  • Safe low DC voltage.
  • Status reporting plus auto-cycling via Talkback Damper Control Monitor (DCM).
  • Optional audio warning facility.
  • Connects to fire panel plus/ or building management system (BMS).
  • BMS alarm notification via Alarm Monitoring System (AMS).
  • Nominal 5 mA current open/ closed.
  • Max 200 mA in operation.
  • Allows bi-directional airflow.
  • Louvred slats give privacy.
  • Use with talkback damper control system. Conductor hinges. Optional Alarm Monitoring System (AMS) and battery backup.
  • Other non-standard sizes may be available - consult the manufacturer for details.
  • Each damper 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 damper will suit a 200 x 200 mm aperture. Screwed into door with an aperture lined with Lorient intumescent liner (B24402).
  • 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.

General information

Color

Silver

Material

PVC

Guidance for specification option:

PVC with an intumescent core.

Steel

Guidance for specification option:

Flange.

Aluminium

Guidance for specification option:

Flange.

Manufacturer guidance

Electro mechanically operated smoke shutter mechanism.

Width

200 mm

250 mm

300 mm

350 mm

400 mm

Height

Bespoke

Uniclass

Pr_30_59_94_32 Fire-resisting air transfer grilles with smoke shuttersPrimary

CAWS

L20/20 Wood flush doors

L20/230 Wood flush doors

L20/25 Wood panelled doors

L20/250 Wood panelled doors

L20/270 Wood doors

L20/280 Doors

L20/30 Wood doors

L20/410 Wood doorsets

L20/420 Wood doorsets

L20/430 Wood doorsets

L20/480 Doorsets

L20/55 Doorsets

P21/66 Door-mounted air transfer grilles

P21/896 Door-mounted fire-resisting air transfer grilles

P21/897 Door-mounted fire-resisting air transfer grilles with smoke shutter

Specification data - Fire-resisting air transfer grilles with smoke shutters

Standard

To BS 476-20 and BS 476-22 (fire) and BS 476-31.1:1983 (smoke).

Third party certification

Certifire CF 564.

Category

Intumescent with smoke resistant air transfer grille.

Size

200 x 200 x 20 mm

200 x 250 x 20 mm

200 x 300 x 20 mm

200 x 350 x 20 mm

200 x 400 x 20 mm

250 x 200 x 20 mm

250 x 250 x 20 mm

250 x 300 x 20 mm

250 x 350 x 20 mm

250 x 400 x 20 mm

300 x 200 x 20 mm

300 x 250 x 20 mm

300 x 300 x 20 mm

300 x 350 x 20 mm

300 x 400 x 20 mm

350 x 200 x 20 mm

350 x 250 x 20 mm

350 x 300 x 20 mm

350 x 350 x 20 mm

350 x 400 x 20 mm

400 x 200 x 20 mm

400 x 250 x 20 mm

400 x 300 x 20 mm

400 x 350 x 20 mm

400 x 400 x 20 mm

Manufacturer guidance

Height x width.

Nominal to suit standard PVC pipes or steel ducts.

Fire resistance (minimum)

60 minutes.

Colour

Silver.

Electrical connection

Required.

Thickness

20 mm.

Free area

30% free area (approximately).

Accessories

None.

Alarm Monitoring System (AMS) and battery backup.

Sustainability data

Country of product manufacture

United Kingdom

Third party certifications

Certifire Certificate

Certifire Certificate

Certifire CF564

Case studies

Aston Villa Football Club

Aston Villa Football Club

Similar products from Lorient

LVH44S Fire & Smoke Resistant Air Transfer Grille

LVH44S Fire & Smoke Resistant Air Transfer Grille

LVV40S Fire and Smoke Resistant Air Transfer Grille

LVV40S Fire and Smoke Resistant Air Transfer Grille