MO-D / MS-D

Description

The MOD / MSD 400°C/2h smoke dampers are specifically designed for smoke exhaust systems in commercial buildings, industrial facilities, and underground infrastructures. Tested at 400°C for 2 hours with full damper operability maintained throughout the test, they provide outstanding mechanical integrity and operational reliability under extreme conditions.

Designed to withstand pressures of up to 5,000 Pa, the MOD and MSD dampers are particularly well suited to road tunnels, railway tunnels, metro systems, commercial buildings, and industrial installations requiring reliable smoke exhaust systems that comply with fire safety requirements.

Thanks to their reinforced industrial construction, galvanized steel blades, and numerous customization options (stainless steel construction, motorized operation, thermal insulation casing), the MOD / MSD dampers provide robustness, safety, and long-term durability for the most demanding smoke exhaust applications.

Characteristics

• Type: Smoke damperFunctions: Airflow control / shut-off

• Minimum size: W 200 × H 180 mm

• Maximum size: W 2000 × H 2490 mm

• Blade airtightness: Unclassified up to Class 3 according to EN 1751

• Casing airtightness: ATC4 / ATC3 according to EN 1751 (formerly Class B and Class C)

• Maximum operating pressure: 5,000 Pa

• Maximum air velocity: 20 m/s

• Fire resistance rating: 400°C / 2h

• Materials: Galvanized steel or stainless steel

• Actuation: Manual or motorized (electric)

Performances

Airtightness

• MOD: Unclassified

• MSD: Class 3 according to EN 1751

Pressure rating

The MxD damper range is designed to withstand differential pressures of up to 5,000 Pa with a 1,000 mm blade length in the galvanized steel version.

Fire resistance rating

• Standard: 400°C / 2h

ATEX

• ATEX certified

Applications

• Road tunnels
• Railway tunnels
• Metro systems
• Commercial car parks
• Industrial installations
• Smoke extraction systems
• Smoke ventilation systems
• Fire safety HVAC systems
• Technical rooms
• Underground car parks
• Transport infrastructure