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LORIENTFire-rated ventilation grilles

Lorient LVN25S

The LVN25S provides a unique solution to the problem of containing both fire + smoke in emergency conditions yet offering good air transfer through doors in everyday use. Using the same intumescent louvred slat configuration as the LVN25, but incorporating an electro mechanically operated smoke shutter mechanism. Can provide up to 60 minutes fire + smoke resistance.

Model and selection

Lorient LVN25S

Performance depends on the tested assembly, dimensions and installation. Review the current technical documents before specifying this product.

ApplicationSuitable for FD30 & FD60 doors, greater than 50mm. Note: in applications where high levels of humidity or wetness are anticipated, please speak to our Technical Department for alternatives
Thickness2 pieces x 25mm
Free areaApprox 30% free area
MaterialRigid PVC slats with an intumescent core. Steel flange. Electro mechanically operated smoke shutter mechanism
FinishSilver as standard
Use withTalkback damper control system. Conductor hinges. Optional Alarm Monitoring System (AMS) + battery backup

Manufacturer reference

Technical documents

Hosted on this website. Original manufacturer and certification information is retained. Contact AODISI for sales enquiries.

PDF · Lorient Fire + Smoke Resisting Dampers / Air Transfer Grilles ↓PDF · ATG Product Selector ↓PDF · Lorient LVN25S datasheet ↓PDF · Talkback specification overview ↓PDF · Door loop datasheet ↓PDF · Conductor hinge datasheet ↓PDF · Lorient Free Area Characteristics ↓PDF · LVN25S into 50mm timber fire door (Door 9) ↓PDF · LVN25S into 54mm timber fire door (Door 10) ↓PDF · Lorient Talkback wiring instructions ↓PDF · CF564 Certifire Certificate ↓

Technical documents and related products

Use the Lorient LVN25S technical documents to check dimensions, installation and suitability. For fire-rated ventilation grilles and ventilation fire protection selection, compare the following products in the same material category; matching categories do not imply interchangeability.

Fire-rated ventilation grilles →

Lorient LVN25S technical data and downloads

Lorient LVN25S
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