Flow regulator on suction side
250 x 250 x 210 - 1 800 x 1 800 x 210 mm | RKTMJ MANDÍK, a.s.

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.

Properties
* Min. dimensions 250x250x210; max. dimensions 1800x1800x210 mm (square cross-section only, round adapter available)
* Carbon steel, carbon steel with approved coat system, galvanised steel, stainless steel - AISI 304 - body 3 mm, longitudinal welded seams
* Contra-rotating aerodynamic blades
* Electric, pneumatic, or mechanical control, with possible limit switch control
* Actuation mechanism installed externally of the damper axis and airflow direction
* Plain bearings, maintenance-free design
* Max. airflow 25 m/s
* Pressure difference up to 7500 Pa (internal vs external pressure)
* Max. transported air temperature +120°C
* Max. transported air and ambient humidity 100%
* Radioactive aerosol impact up to absorbed dose of 0.1 Gy/h
* Decontaminable
* Damper body tightness class "C" as per EN 1751
* Max. permissible leakage across closed shutter: 2% of nominal airflow
* Min. service life 40 years, maintenance interval 10,000 hours.