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