Multi-Compartment Smoke Control Shutter/Damper (for Shafts) – SEDM-D

Categories Smoke Control Dampers, Smoke Control Dampers - Mandik

Multi-Compartment Smoke Control Shutter/Damper (for Shafts) – SEDM-D

A specialized, ultra-thin shutter/damper designed for vertical smoke shaft installations. Features zero standby power, instant 5-second opening, and a minimal depth of only 90mm (80mm built-in). Ideal for protecting openings in shaft walls.

Product Description

Key Features & Benefits

Ultra-Thin Shaft Design
Total depth of only 90mm (80mm built-in), perfect for installation in thin shaft walls.
Zero Standby Power
Consumes no electricity while in standby, enhancing system reliability and reducing operating costs.
Instant & Fast Operation
Opens and secures within 5 seconds, closes in under 30 seconds for rapid smoke control response.
High Fire & Pressure Resistance
Lightweight yet robust design rated for Pressure Class 3 (-1500 Pa / +500 Pa) and relevant fire standards.
Large Effective Area
Available with high-efficiency grilles (77% to 95% free area) for optimal airflow when open.
Easy Installation & Maintenance
Simple installation into various shaft wall materials and wide availability of spare parts.

Technical Specifications

Size Range

300x300 mm to 700x1100 mm (manual) / 350x385 mm to 700x1100 mm (motorized rearm)

Opening Time

≤ 5 seconds (and securing)

Closing Time

< 30 seconds

Built-in Depth

Only 80 mm (Total: 90 mm)

Certification

CE per EN 12101-8

Fire Classification

EN 1366-10 (EN 13501-4)

Pressure Rating

Class 3 (Underpressure: -1500 Pa / Overpressure: +500 Pa)

Tightness (Closed)

Class 3 (EN 1751)

French Norms

NF 61.937-1 & NF 61.937-10

Installation & Control

Vertical Shaft Installation

Specifically designed for mounting in vertical smoke extraction shafts (ducts).

Power-Free Standby

No electrical connection needed for the standby state; activates via mechanical or thermal release.

Two Re-arming Options

1. Manual re-arm or
2. Motorized re-arm for automatic resetting after activation.

Room-Safe Design

Moving parts are concealed behind the grille, protecting the room from accidental contact.

Use Cases

SEDM-D-without-grille

Security-position-(damper-is-open)