OPTONE® "+Grille" 2 flaps

OPTONE® "+Grille" 2 flaps

OPTONE “+Grille” smoke control dampers are intended for commercial premises and can be used as air inlets or for smoke and heat exhaust.
OPTONE® "+Grille" 2 flaps
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OPTONE® "+Grille" 2 flaps
OPTONE “+Grille” 2-flap smoke control dampers are intended for non-residential buildings (public-access, high-rise), and can be used as air inlets or for smoke and heat exhaust. They can be motorised. OPTONE "+ Grille" 2-flap dampers include a grille which eliminates the requirement to install a separate grille. The electromagnetic trip device is included and available in current make/break versions and 24/48V.
OPTONE® "+Grille" 2 flaps

The + products

  • simplicity: Nominal dimensions = installation dimensions,
  • reversible top/bottom mounting frame,
  • single mounting frame for all OPTONE models.
  • pre-drilled cable through holes,
  • 1-flap/2-flap dampers can be motorised,
  • new: core locking clip.

In standby position, the damper is closed. It opens when instructed by the FACP and moves into failsafe position.

  • CE marking compliant as per EN 12101-8: Certificate 1812-CPR-1053,
  • fire resistance classification as per EN 1366-10 test:
    • EI 90 (ved-i o) S - 1000 Pa - AA multi, in accordance with § 7.2.4 of

EN 13501-4 certified on Promatect smoke exhaust duct L500 and on ducts compliant with EN 1366-9 of the same material and same density,

    • EI 60 S for H > 1000.
  • compliant with French standard NF-S-61937-10,
  • leak rate < 200 m3/h per m² of leaf at 1,000 Pa,
  • pressure losses damper only (with grille):
    • return: ∆p=2,083 .√(S_free/(LxH)).(Q/S_free)²,
    • supply: ∆p=2,00 .√(S_free/(LxH)).(Q/S_free)²,
    • ∆p in Pa, S_free m2, Q in m³.s-1, L and H in mm.
  • free air passage (dm²): 2 flap = ((L-76) x (H-57) -14 147) / 10 000.
  • motorised damper possible,
  • electric control mechanism inside protective box,
  • steel mounting frame 20/10 mm,
  • grille frame attached to damper,
  • nominal dimensions of damper L x H = installation space (opening) for mounting frame, attached without mortar seal,
  • locking system mounted on flap for greater free surface,
  • cable through holes included,
  • locking system fitted with self-resetting electromagnetic trip device,
  • scalable junction box,
  • available options:
    • galvanised steel trim, choice of RAL colour,
    • lockable core,
    • backdraft (required on air intakes if speed in ducts is above 7 m/s),
  • mounting frame can be installed in factory.
  • “multi-compartment” dampers are suitable for “single-compartment” applications,
  • maximum negative pressure: - 1,000 Pa,
  • direction of fire: inside smoke exhaust duct (when damper is closed).
  • use of mounting frame strongly recommended,
  • use of CONCEPTOR DESENFUMAGE design software recommended to define the dimensions of the mounting frame installation space,
  • if mounting frame already fixed to damper (no gaps), nominal LxH dimensions of damper = dimensions of opening,
  • if mounting frame mortar sealed, add thickness of mortar to L and H,
  • use detailed instructions for correct installation of flaps,
  • damper can be inverted “upside down”,
  • damper flush-mounted against vertical smoke exhaust duct,
  • attached with 4 self-tapping screws supplied, on front face in mounting frame holes.
Free air passage section (dm²) Insulation material

7,7 (Min) - 104,2 (Max)

OPTONE® "+Grille" 2 flaps
Lmin x Hmin (mm) Lmax x Hmax (mm)

450 x 300

1000 x 1200

  • PV CE number  :  1812-CPR-1053

Products and accessories references

  • OPTONE® "+ Grille" 2-flap with choice of options
    OPTONE® "+ Grille" 2-flap with choice of options


Showing 1 - y of document
  • Certificate of consistency of performance CE - CPR / PV FEU / OPTONE® "+Grille
    4 MB
  • Laboratory assessment OPTONE on concrete duct
    700 KB
  • Declaration of performance (DOP) OPTONE® "+ Grille
    224 KB
  • Fire resistance rating certificate OPTONE® "+Grille" 2V
    1 MB
  • OPTONE® Moteur LOCKTONE et Kit anti-retour Installation instructions
    1 MB
  • OPTONE® Installation instructions, Maintenance
    3 MB

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