Johnson Bros. Metal Forming Co. - Berkeley, IL
Manufacturer, Custom Manufacturer, Service Company
Manufacturers, roll formed metal damper slat profiles, framing, blades, rings, channels, angles. All metals. 2,000ft. min.
www.JohnsonRollForming.com

Continental Fan Manufacturing, Inc. - Buffalo, NY
Distributor, Manufacturer, Custom Manufacturer
Manufacturer of standard & custom backdraft dampers & butterfly duct dampers. Backdraft dampers are available in spring loaded & gravity styles. Spring loaded backdraft dampers range in sizes from 4 in. to 8 in. with center pin design & 10 in. & 12 in. center post design & features neoprene damper seals, 20 gauge steel housing & exterior foam gaskets. Gravity backdraft dampers are made of galvanized steel housing in sizes of 7 in., 14 in. & 16 in.
Brand Names: Aero-Flo, CFM, Continental Fan
www.continentalfan.com/ecatalog.php?fantype...

Imperial Systems, Inc. - Jackson Center, PA
Manufacturer, Custom Manufacturer, Service Company
Manufacturer of standard & custom backdraft dampers including duct dampers & rotary dampers. Dampers are available in different sizes & specifications. Additional products include baghouses, cyclones, diverter valves, airlocks, slide gates, abort gates, duct & components, SCF dust collectors, after-filters & backdraft dampers.
catalog.isystemsweb.com/product/all-categor...

Backdraft Dampers Products
	Backdraft Damper

Fab-Tech, Inc. - Colchester, VT
Manufacturer
Lean manufacturing. Manufacturer of heavy-duty backdraft dampers for rectangular industrial ducts. Dampers are available with 0.50 in. dia. stainless steel axles, 2 in. flanges, 8 in. 10 ga. stainless steel frames & 14 ga. stainless steel blades. Features include liquid tight shaft & PTFE frame seals, manual adjustable counterweights & flange mounting holes. 1 year warranty.
Brand Names: PSP
www.fabtechinc.com/ft%20products.htm

Control Equipment Co., Inc. - Schaumburg, IL
Manufacturer
Design & manufacturer of backdraft dampers. Petrochemical, mining, pollution control, combustion process, glass manufacturing/forming, heat recovery, solvent recovery, power, cement & steel industries served. Damper uses include isolation, control, diverting, air quenching, process control & backdraft/pressure relief.
www.cedampers.com/html/aboutus.html

Kelair Products, Inc. - Richmond, IL
Manufacturer
Custom manufacturer of counter weighted butterfly style backdraft dampers available in square, rectangular & round shapes & variety of flange sizes. Features of backdraft dampers include carbon & stainless steel frames, structural channels, stainless steel & corrosion & abrasion resistant vanes, shafts, bearings, glands & seals, inlet screens, mating flanges, duct sections, castable refractory linings, heat shields, position indicating switches & slave linkages. Backdraft dampers are suitable for use in temperatures up to 2000 degrees F & differential pressure up to 6 psi.
www.kelairdampers.com/products.cfm?webpagen...

Indventech - Greer, SC
Distributor, Manufacturers' Rep, Service Company
Mfr's rep. & distributor of catalog & custom dampers & valves capable of controlling air flow. Dampers & valves include variable inlet vanes, backdraft, isolation, pressure relief, fan outlet, butterfly, diverter, slide gate, poppet, stainless steel, exotic alloy, FRP, high temperature (to 2800f) & abrasion resistant. Also available are specialty & custom dampers.
industrialventilationtechnologies.com/indus...

Process Development & Control, Inc. - Coraopolis, PA
Manufacturer
Manufacturer of backdraft dampers including butterfly valves made from cast iron, carbon steel, iron & stainless steel. Types of valves include pneumatic, hydraulic, motor & hand operated, compressor & gas valves. Specifications of valves include 2 in. to 60 in. size with ambient temperature up to 1,500 degrees F.
www.pdcvalve.com/index.html

Airdistributor - Indianapolis, IN
Distributor, Manufacturers' Rep
Mfr's rep. & distributor of backdraft dampers for industrial exhaust fans. Control, gravity & motorized air intake dampers are also available.
Brand Names: Triangle
www.airdistributor.net/default.aspx

Air Applications, Inc. - Carmel, IN
Distributor, Manufacturers' Rep
Mfr's Rep. of backdraft dampers. Types of dampers also include pressure relief, volume control, inlet vane & heavy duty industrial dampers. Adjustable & stationary blade, extruded aluminum & galvanized louvers, sunshades & grilles are also available.
Brand Names: AWV
www.airapplications.com/airmoving.html

Advanced Valve Design, Inc. (AVD) - Whitehall, PA
Manufacturer, Custom Manufacturer
Manufacturer of standard & custom dampers including backdraft, flue & stack dampers available in various dia., length & width. Dampers are made from various alloys including Inconel®, carbon steel, stainless steel, Hastalloy®, micro alloys & other commercially available alloys. Fabricated, fiberglass reinforced plastic (FRP), light duty & special dampers are also available.
www.advancedvalve.com

Air Development Corp. - Atlanta, GA
Distributor, Manufacturers' Rep
Manufacturers rep. of backdraft dampers. Types of dampers also include acid & heat resistant, air cooled, boiler, butterfly, compressed air operated, diverter, guillotine, isolation, knife gate, louver, power plant, self-lubricating, stack, ventilation system & vibration dampers. Dampers are available in various designs & configurations. Dampers are suitable for isolation & control of airflow in utility, refinery & industrial process applications.
Brand Names: Flextek
www.adcfans.com/dampers_silencers.html

Aerosonics - California, MO
Manufacturer
Manufacturer of air conditioning, backdraft & duct dampers. Other products include sound control for commercial, institutional & light industrial HVAC systems.
www.aerosonics.com/catalog.php

Markair, Inc. - Jacksonville, FL
Manufacturers' Rep, Service Company
Manufacturers rep. of dampers including backdraft dampers. Custom designed backdraft dampers are available. Services include field surveying, system designing & recommendation, project budget/appropriation & turnkey installation services. Other dampers such as PVC dampers, control dampers, pressure relief dampers, inlet vane dampers & marine duty dampers are also available. Backdraft dampers meet OSHA requirements.
Brand Names: American Warming & Ventilating, Fiber-Aire, United Enertech
www.markair.net/products/louvers-and-damper...

Western Pneumatics, Inc. - Eugene, OR
Manufacturer, Custom Manufacturer, Service Company
Manufacturer & designer of duct, butterfly, backdraft & louver dampers. Rotary, radial, wafer, blade, vane & inlet vane, guillotine & variable inlet vane dampers, isolation couplings, high temperature expansion joints, single-blade diverter gates, louver vents & diverter gates are also available.

United Enertech - Chattanooga, TN
Manufacturer, Custom Manufacturer, Service Company
Manufacturer of backdarft dampers designed to control backflow & can operate in vertical & horizontal positions. Different types include butterfly spring operated, counter balance, standard duty, & industrial duty rectangular dampers.

Cesco Products - Florence, KY
Manufacturer, Custom Manufacturer, Service Company
Manufacturer of ventilation system dampers for the HVAC industry. Features of dampers include factory-installed electric or pneumatic actuators, sleeves & position-indicating switches. Types of dampers include smoke dampers, combination fire/smoke dampers, aluminum air foil dampers, heavy-duty double-flanged dampers, control dampers, & aluminum back draft dampers.

Effikal Flash Detection - Lake Orion, MI
Manufacturer
Designers & Manufacturers Of Electrically Operated Vent & Flue Dampers, As Well As Barometric Draft Controls. Many Applications. Stainless Steel Or Galvanized Steel Construction. On-Time Delivery

Economy Metal Works, Inc. - Houston, TX
Manufacturer, Custom Manufacturer, Service Company
Manufacturer of standard & custom dampers including louver dampers, duct dampers backdraft dampers & electrically operated dampers. Materials used include mild steel, galvanized, aluminum & stainless steel. Features include adjustable plates to control air-flow & can be used in 'fully-on' or 'fully off' role. Products can be customized to dimensional specifications, tolerances, materials & gauges. Capabilities & services include powder coating, wet painting, rolling up to 1/8 in. x 5 ft long, CNC punching & CAD/CAM designing & programming. Markets served include petrochemical, power generation & construction.

Turner EnviroLogic, Inc. - Deerfield Beach, FL
Manufacturer, Service Company
Design & Build Dampers For Air Control & System Balancing. Dampers Are Heavy Duty Type With Shaft Seals, Outboard Bearings, Includes Electric Or Pneumatic Activators

National Energy Control Corporation - Havertown, PA
Distributor
Distributor of HVAC control dampers & accessories. Features include different models, based upon shape size, construction & control scheme. Dampers accessories include electric damper position switch, proportional damper position indicator & replacement fusible links for fire dampers.
Brand Names: Johnson Controls

ECCO Mfg. Div., ECCO Heating Products, Ltd. - Langley, BC
Manufacturer
HVAC Pipe, Ducts, Fittings, Chimney Liners, Louvers, Dampers, Sheathing

Grainger Industrial Supply - Locations
Distributor
Distributor of a wide variety of dampers. Dampers include roof mounted dampers, backdraft dampers, balancing dampers & many more. Services include 24-hour emergency order response services, inventory management services, safety services, repair and replacement programs, hazardous recycling services and storage/material handling equipment services. 1 year warranty.

RoboVent Solutions Group - Knoxville, TN
Distributor, Manufacturer, Custom Manufacturer, Manufacturers' Rep
Manufacturer, system design, engineering & turnkey installation of dust collecting systems including backdraft & power plant dampers for industrial applications. Plant ventilation features source capture of smoke & fumes. Full plant systems are available.

Louvers & Dampers - Florence, KY
Manufacturer
Manufacturer of balancing, steel control, aluminum airfoil, backdraft, curtain fire& fire/smoke dampers.