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.

Flextech Industries Ltd. manufactures butterfly dampers, guillotine dampers, radial vane dampers, louver-bladed dampers, and diverter dampers. The butterfly dampers are for applications that feature up to 2,000F of gas temperature including clean, corrosive, dirty and dry environments. These dampers are available with various seal designs including swing through, step, tadpole, and step with perimeter seal.

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.

Kelair Products Inc. designs and fabricates butterfly dampers, guillotine dampers, louver dampers, diverters and tee dampers. The butterfly dampers are available for temperatures up to 1600F and differential pressures up to 6 psi. The guillotine dampers are available in 10" to 84" sizes, and are round or square shaped; while the louver dampers are for operating temperatures up to 1600F. The diverters/tee dampers are for process air or gas diversion applications.

Lloyd Industries manufactures air control dampers, backdraft dampers, ceiling radiation dampers, combination fire and smoke dampers, and fire dampers for the HVAC industry.

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.

Damper & Control Systems LLC engineers and manufactures heavy-duty butterfly, multi-louver, guillotine, diverter, and vortex dampers used by industrial process air handling systems. The butterfly dampers can be actuated pneumatically, electrically, or manually; and can feature 100 percent sealing efficiency with the addition of twin seals and a sealing air fan.

Western Pneumatics Inc. designs and fabricates a number of damper types including: backdraft, backflow, butterfly, wafer, radial, blade, rotary, inlet vane, vane, inlet box, variable inlet vane, guillotine, and louver. The dampers can be actuated or manual, and are sued for low pressure, pneumatic conveying systems.