KNIFE GATE DAMPERS
Knife gate dampers perform the same functions as a guillotine damper, which is to provide a damper where the blade is removed from the air steam whilst in the open position, but are generally smaller in size.
Knife gate dampers can be manufactured with an enclosed 
bonnet into which the blade is retracted when open. Drive arrangements are of the screw jack type with either a rising or non-rising spindle.
Knife gate operators very from hand or chain wheel to electric motor driven and linear pneumatic.
Knife gate dampers are particularly suited to higher pressure applications where high sealing efficiencies are required such as pulverised fuel feed lines or as isolation valves on sulphuric acid plants.
Materials of construction and drive configurations are selected and designed to suit the application and customer requirements.
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