Aeraulic

High airtightness performance

Class 4 blade airtightness and ATC2 casing airtightness certified according to EN 1751 (formerly Class C)

Critical applications

Ideal for cleanrooms and high-containment laboratories

High-security containment

Very low upstream/downstream leakage rates

RI

Rectangular

Rectangular

Market

Nuclear

Clean rooms

For more information, please do not hesitate to contact us.

Description

The RI shut-off damper is a high-airtightness damper certified to Class 4 blade airtightness and ATC2 casing airtightness (formerly Class C) in accordance with EN 1751. It is specifically designed to isolate sections of ventilation ductwork in sensitive installations and environments with stringent hygiene requirements.

Thanks to its reinforced design and outstanding airtightness performance, the RI damper is ideally suited to cleanrooms, Biosafety Level 4 (BSL-4) laboratories, pharmaceutical facilities, healthcare environments, and other critical HVAC applications.

Manufactured from galvanized steel or stainless steel, the RI damper provides effective isolation of ventilation systems while significantly reducing upstream/downstream air leakage and pressure losses.

The RI damper is particularly suitable for small-size HVAC ductwork requiring maximum airtightness and precise airflow control.

Characteristics

Type: High-airtightness shut-off damper
Function: Ventilation ductwork shut-off
Minimum size: W 200 × H 180 mm
Maximum size: W 700 × H 695 mm
Blade airtightness: Class 4 according to EN 1751 (leakage rate: 0.71 l·s⁻¹·m⁻² at 500 Pa)
Casing airtightness: ATC2 according to EN 1751 (formerly Class C)
Maximum operating pressure: 1,200 Pa
Operating temperature range: -20°C to +80°C
Materials: Galvanized steel or stainless steel
Actuation: Electric or pneumatic