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Rectangular dampers

RI

Advantages:
  • High airtightness: class 4C (EN 1751)
  • Available with manual or motorized control
  • Adapted to the biosafety level 4 laboratory
Dimensions (LxH):
  • Min : 200 x 180 mm  –  Max : 700 x 680 mm
  • Blades' height: 165 mm
  • Frame's width: 185 mm

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Construction:

  • Frame and blades: galvanized or stainless steel
  • Gaskets on the frame and blades: ethylene propylene
  • Linkage in zinc-coated steel: opposed blade operation
  • Available with manual or motorized control

Performances:

  • Upstream/downstream airtightness: class 4 according to EN 1751 (leakage rate 0.71 l.s-1.m-2 à 500 Pa)
  • Frame’s airtightness: class C according to EN 1751
  • Acceptable pressure: 1 200 Pa for a length of L = 1m
  • Operating temperature: -20 to +80°C (+200°C in option)