Overpressure damper

The GP100K overpressure dampers are used to naturally intake or exhaust air by using just the pressure difference between the two sides.

In-duct overpressure damper – Model GP 100 K
The blades move freely to allow air to pass through until the pressure between the two sides of the grille equalises.
At this point, the blades close automatically through gravity.

Technical features:

  • Sizes range from 200mm x 210mm to 1600mm x 1610mm (for B>1400 dual section construction);
  • U-shaped galvanised steel frame, single bent piece, 130mm casing, 1mm thick, 36mm flange on both sides;
  • natural non-anodised aluminium blades, 100mm spacing;
  • non-pass-through pins and bushes in AXTROMID A2800;
  • galvanised steel stops;
  • G.A. Class 1 adhesive anti-noise seals on blades and stops.

AISI 316L stainless steel version available, with AISI 316 stainless steel pins and self-lubricating sintered bronze bushes.
The frame is made from 4 pieces welded together, 40mm flange.


  • ATEX IIGD -40°C < T < +50°C;
  • Declaration of Conformity EAC and EAC-ex.
  • Lightweight construction
tech sheettech sheet

Condizioni generali di vendita

Condizioni generali di acquisto

General Conditions of Purchase