RKKTM-DK Round Tight Regulation/Shut-Off Damper

RKKTM-DK Round Tight Regulation/Shut-Off Damper

An airtight round damper designed for SPIRO duct systems. Features a silicone-sealed blade for leak-tight Class 4 closure, serving as a reliable shut-off or regulating damper in standard and explosion-hazard environments.

Product Description

Key Features & Benefits

  • Airtight Silicone Seal

    Silicone-sealed blade ensures reliable, leak-tight Class 4 closure for isolation duties.

  • Explosion-Hazard Rated

    Suitable for installation in environments with potentially explosive atmospheres.

  • SPIRO Duct Design

    Primarily designed for direct connection to SPIRO round ducts with a rubber edge seal.

  • Robust Construction

    Galvanized steel body and blade for durability in demanding applications.

  • Versatile Actuation

    Available as actuator-ready or with pre-mounted manual/electric actuators.

  • High Flow Rating

    Handles air velocities up to 12 m/s for use in main and branch ducts.

Technical Specifications

Diameter Range

80 mm to 630 mm

Leakage Class

Casing: Class C (ATC 3). Blade: Class 4 (Airtight).

Max. Air Velocity

12 m/s

Operating Temperature

-20°C to +80°C (Airflow)

Hazardous Area

ATEX / Explosion-proof compatible (with appropriate actuator).

Seal Material

Blade perimeter: Silicone. Duct connection: Rubber edge seal.

Installation & Control

Primary Connection

For SPIRO ducts with a rubber edge seal (standard). Flanged version optional.

Mounting

Install in any orientation. Ensure 250 mm clearance for the control mechanism.

Explosion-Hazard Note

For hazardous areas, ensure all components (actuator, seals) are rated for the specific zone.

Actuator Preparation

Supplied ready for actuator mounting. Pre-mounted actuators available on request.

Use Cases

Product brochure
Scroll to Top