Effox-Flextor designs and manufactures guillotine/slide gate, louver, diverter, stack isolation, butterfly/wafer, poppet, and radial vane-type dampers. Depending on type the dampers are used for precise flow control, cement plant, power plant, power boiler isolation, turbine, reverse gas flow, outlet flow, bypass flow, and fan inlet control applications.

Fox Equipment engineers louver dampers, slide gate dampers, wafer/butterfly dampers, diverter/flap dampers, radial vane/VIV/IVC dampers, stack isolation dampers, and poppet dampers. The louver damper are available as parallel, opposed, and double types. The slide dampers are available as low leak and zero leak models; with the wafer/butterfly dampers used in round duct applications. The diverters/flap dampers are used in gas turbine applications, and the radial dampers provide flow control for fan inlets.

Industrial Environmental Systems Inc. designs and manufactures tuned mass dampers that are attached to a chimney to increase its structural damping - thus reducing the cross wind and along-wind vibrations. The dampers are typically attached to industrial steel stacks.

Orbinox designs and manufactures butterfly dampers, multiple diverter dampers, louver dampers, diverter dampers, stack dampers, three level valve dampers, and goggle dampers.

ProcessBaron designs and manufactures louver dampers, butterfly dampers, vortex vane dampers, diverter dampers, slide gate dampers, and stack dampers. The diverter dampers are for process and heat applications, while the slide gate and stack dampers feature low to zero leakage. The vortex vane dampers feature a counter levered blade, with the butterfly dampers available with round, square or rectangular blades.

Control Equipment Co. Inc. designs and manufactures dampers for industrial service including butterfly, louver, gate, and diverter types. The company also produces specialty dampers types including: goggle-type slide gate, radial vane inlet, stack cap, and refractory lined.

Joiner Systems Inc.engineers damper types including: louver, butterfly, guillotine, slide gate, diverting, stack cap and flap isolator, and poppet. All the dampers are designed to withstand high pressures, temperatures, and corrosive gases found in processing systems.