2.3.2. Louver Damper, gastight design ND-J

Louver damper LD-J and ND-J will be used for controlling air flow and shutting off air ducts.

Data

Nominal dimensions (W/H) see table
Max. temperature 90°C
Adm. leakage rate damper housing DIN 25 496 <10 l/(h·m2) at 20°C and Δp = 2 000 Pa
Adm. leakage rate damper blades (lamellas) class 4 acc. to DIN EN 1751
Frame Stainless steel 2 mm by means of a screwed construction
Actuator Manual, eletrical, or pneumatic

 Nominal dimensions in mm

B 1 400  500  600  700  800  900  1000  1200  1400  1600  1800  2000   ---
H 1 150 300 450 600 750 900 1050 1200 1350 1500 1650 1800 1950

1 All combinations of W and H dimensions possible, other dimensions also possible

Features

  • The damper is designed to operate without any failure at an operating pressure of 1.1 time the admissible operating pressure
  • Warp-resistant hollow body lamellas made of aluminum, 150 mm
  • Lamellas equipped with changeable silicon rubber profile
  • Counterrotating lamellas by means of external positioned rod. parallel rotating lamellas available on request
  • Electrical-, pneumatic-, and manual actuator available
  • Maintenance-free operation
线上娱乐网