Fluid flow control damper assembly

F - Mech Eng,Light,Heat,Weapons – 24 – F

Patent

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Details

F24F 13/14 (2006.01) F15B 15/14 (2006.01) F16K 1/22 (2006.01) F16K 31/122 (2006.01)

Patent

CA 2380771

A fluid flow control damper assembly having a damper vane and a piston actuator is relatively easy to install when the outer surface of a duct is inaccessible. The piston actuator includes a powder metal piston, lacking an elastomeric (for example, rubber) seal, that is closely received within a glass cylinder. The glass cylinder has a fitting that closes one end of the cylinder and is connectable to a pneumatic control system. A drive rod is connected between the piston and the damper vane to move the damper vane between an open position and a closed position.

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