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VL 77EX
VL-77EX

Maximum Airflow for Exhaust

The VL-77EX is designed specifically for exhaust applications, offering very low pressure loss to maximize airflow with minimal mechanical assistance. Its design prioritizes airflow performance over rain defence, making it ideal for use in sheltered environments, such as under canopies. Constructed from durable extruded aluminium, it provides reliable ventilation for mechanical systems where high rain protection is not required. Common applications include exhaust louvres in industrial and commercial settings.

ZNVN 23
Nichols Cromwell ZNVN 3
Specifications
Data Sheet
Compliance Documents
Revit
CAD
Case Studies
Specifications
Data Sheet
Compliance Documents
Revit
CAD
Case Studies
Dimensions

Depth: 104.5mm

Height: Minimum 300mm, Maximum 3000mm (panel modules can be spliced together to form larger louvres)

Width: Minimum 200mm, Maximum 3000mm (panel modules can be spliced together to form larger louvres)
Blade Centres

77mm
Rain Defence Performance (BS/EN 13030:2001)

Class C - up to 0.5m/s suction velocity

Class D - up to 3.5m/s suction velocity

 
Aerodynamic Performance (BS/EN 13030:2001)

Air Inlet: 0.376, Class 2

Air Extract: 0.376, Class 2
Geometric Free Area (active blades only) 61%
Surface Finish Options

Powdercoated

Anodised

Raw Aluminium (Mill)
Perimeter Frame Options

Flanged Frame

Channel Frame
Ancillaries Options

Bird Mesh

Insect Mesh

Solid Blanking

Perimeter Mounting Angle

VL-77EX Data Sheet (PDF)

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Ventilation Louvre Brochure

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VL-77EX Test Certificate

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Louvre Calculator

VL-77EX Specification

VL-77EX BPIR Declaration

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VL-77EX Product Technical Statement

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VL-77EX Revit Family

VL-77EX_Product Sheet (Channel Frame) PDF

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VL-77EX_Installation Details (Brick Veneer) DWG

VL-77EX_Installation Details (Window Mounting Angle) DWG

VL-77EX_Installation Details (Glazed In Commercial Frame) PDF

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VL-77EX_Installation Details (Precast With Flanged Frame) DWG

VL-77EX_Installation Details (Glazed In Flanged Frame) DWG

VL-77EX_Installation Details (Vertical Metal Cladding) PDF

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VL-77EX_Product Sheet (Standard Frame) DWG

VL-77EX_Installation Details (Window Mounting Angle) PDF

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VL-77EX_Installation Details (Horizontal Metal Cladding) DWG

VL-77EX_Installation Details (ACM Cladding) DWG

VL-77EX_Installation Details (Precast With Flanged Frame) PDF

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VL-77EX_Installation Details (Brick Veneer) PDF

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VL-77EX_Product Sheet (Glazed In Frame) DWG

VL-77EX_Product Sheet (Standard Frame) PDF

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VL-77EX_Installation Details (Weatherboard) DWG

VL-77EX_Installation Details (Horizontal Metal Cladding) PDF

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VL-77EX_Installation Details (ACM Cladding) PDF

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VL-77EX_Product Sheet (Channel Frame) DWG

VL-77EX_Product Sheet (Glazed In Frame) PDF

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VL-77EX_Installation Details (Fibre Cement) DWG

VL-77EX_Installation Details (Glazed In Commercial Frame) DWG

VL-77EX_Installation Details (Fibre Cement) PDF

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VL-77EX_Installation Details (Weatherboard) PDF

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VL-77EX_Installation Details (Vertical Metal Cladding) DWG

VL-77EX_Installation Details (Precast With Channel Frame) PDF

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VL-77EX_Installation Details (Precast With Channel Frame) DWG

VL-77EX_Installation Details (Glazed In Flanged Frame) PDF

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VL-77EX_Installation Details (Fire Damper) DWG

VL-77EX_Installation Details (Aluminium Single Door) PDF

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VL-77EX_Installation Details (Aluminium Double Door) PDF

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VL-77EX_Installation Details (Aluminium Single Door) DWG

VL-77EX_Installation Details (Fire Damper) PDF

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VL-77EX_Installation Details (Aluminium Double Door) DWG

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