RKTMJ – Multi-leaf regulation damper resistant against seismic events, effects of high-pressure and to higher air flow velocity. Usable as insulating damper, tight insulating damper, low overpressure damper.

Characteristics

• Min. dimensions 250 x 250 x 210;
  max. dimensions 2000 x 2000 x 210 mm (square cross-section only, round adapter available)
• Carbon steel, carbon steel with approved coat system, galvanised steel, stainless steel - casing 3 mm, welded construction
• Damper actuating mechanical, electrical, pneumatical, or combination – possible usage of additional limit switches
• Plain bearings, maintenance-free design
• External Casig leakage class C,
  Internal leakage class 3,4 acc. to EN 1751
• Max. airflow 25 m/s

• Contra-rotating aerodynamic blades
• Actuation mechanism installed externally of the damper axis and airflow direction
• Pressure difference up to 7500 Pa (internal vs. external pressure)
• Radioactive aerosol impact allowed - decontaminable
• Seismic resistant (high resistance)
• Guaranteed service life 40 years, recommended maintenance interval 10 000 hours