RKTMJ Regulating Damper

Categories Special Applications, Special Applications - MANDK

RKTMJ Regulating Damper

A heavy-duty multi-leaf regulating damper engineered for extreme seismic, pressure (7500 Pa), and high-velocity (25 m/s) applications. With versatile functionality as an insulating, tight insulating, or low overpressure damper, it features contra-rotating aerodynamic blades and a 40-year service life for critical infrastructure.

Product Description

Key Features & Benefits

Contra-Rotating Aerodynamic Blades
Multi-leaf design with contra-rotating blades for precise airflow regulation and control.
Seismic & High Pressure Rated
Withstands 7500 Pa pressure and high-level seismic events with external mechanism.
Multi-Function Application
Serves as insulating, tight insulating, or low overpressure damper in one unit.
High Velocity & Low Leakage
Handles 25 m/s airflow with adjustable leakage class (3-4 per EN 1751) for precise control.
Multiple Actuation Options
Mechanical, electrical, pneumatic, or combined with optional limit switches for automation.
Radiation & Decontamination Ready
Resists radioactive aerosols and designed for decontamination in nuclear/chemical facilities.

Technical Specifications

Dimensions

Min: 250×250×210 mm. Max: 2000×2000×210 mm. Square (round adapter available).

Construction

Casing: 3mm steel (carbon, galvanized, stainless). Welded. Blades: Contra-rotating.

Performance

Max Airflow: 25 m/s. Max Pressure: 7500 Pa. Leakage Class: 3-4 (EN 1751).

Actuation & Control

Options: Mechanical, Electrical, Pneumatic, Combined. Extras: Limit switches optional.

Special Features

External Mechanism: Outside airflow path. Seismic: High resistance. Life: 40 years.

Maintenance

Interval: 10,000 hours. Bearings: Plain, maintenance-free.

Installation & Integration

Heavy-Duty Mounting

Requires structural support for 7500 Pa; external mechanism allows maintenance access.

Flexible Actuation Setup

Choose actuation type based on control system (BMS, pneumatic, or manual).

External Mechanism Design

Mechanism mounted outside duct avoids airflow disruption and simplifies servicing.