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Product description

The louver damper is composed of various blades which each turn on the central shaft. The ends are joined to the pipes via flanges. Normally, the louver damper is supplied as one piece, except in those applications in which the dimensions of the equipment require special transport.

Construction

The body of the PL damper is machine welded and can be made of different materials. The standard construction sizes range from 150×150 mm (minimum) to 3000×3000 mm although larger sizes are available on request. The blades are made flat, with reinforcing ribs and are supported on two semi‐shafts. The flat blade system is sufficiently rigid for the working pressures of these valves and they do not produce significant load losses.

Utilization

The  PL  dampers  have  two  types  of  seals.  Depending  on  the application  you  can  choose  between:  Swing‐thru  (97%  seal),  for environments with high dust concentrations, the  metal/metal seal (99%  seal)  and  the  step‐seat  joint  for  other  applications  that require  greater  watertight  integrity,  reaching  100%  with  air chamber sealing.

Sizes

Working pressures

Download technical documentation

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