Special Applications

Certified Solutions for Seismic, High-Pressure & Radiation Environments

The MANDÍK Special Applications series represents peak engineering for critical infrastructure. These are not standard products, but purpose-built solutions engineered to withstand extreme conditions.

Special Application Fire Damper

PKTMJ-90

A versatile seismic and explosion-proof fire damper offering EIS 90 protection for both square and round ducts.

Non-Return/Backdraft Damper

NKTMJ

It automatically closes against reverse airflow to maintain system integrity and safety in critical ventilation applications.

Pressure-Tight Damper

NTD

A hermetic sealing damper designed for rapid, airtight separation of HVAC sections under extreme conditions.

Pressure-Tight Valve

NTDC

Resistant to seismic events, radiation, high pressure, and high air flow velocities.

Engineered for Extreme Conditions

MANDÍK’s Special Applications series represents the pinnacle of engineering for critical infrastructure projects. These are not standard products, but purpose-built solutions designed to withstand extreme conditions including seismic events, high-pressure differentials (up to 7500 Pa), radiation exposure (up to 100 kGy), and extreme airflow velocities. Each component is qualified for use in nuclear facilities, seismic zones, high-purity environments, and other demanding applications where failure is not an option.

Unique Capabilities

These solutions feature unique capabilities including: in-situ leakage testing for performance verification without disassembly, halogen-free designs for sensitive environments, decontaminable surfaces for radioactive and biological applications, and external mechanisms that allow maintenance access without duct entry.