2.3.1. Louver Damper, airtight design LD-J

Louver damper, type LD-J and type 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 class C acc. to DIN EN 1751
Adm. leakage rate damper blades (lamellas) class 4 acc. to DIN EN 1751
Frame Stainless steel or galvanised steel, 1.5 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 (optional with coated or eloxiered aluminium)
  • Lamellas equipped with changeable silicone rubber Profile
  • Counter rotating lamellas by means of external positioned rod, parallel rotating lamellas available on request
  • Maintenance-free Operation 
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