Process Development & Control, Inc. - Coraopolis, PA
Manufacturer
Manufacturer of hot air heat resistant dampers including butterfly valves. Types of butterfly valves include pneumatic, hydraulic, motor & hand operated, compressor & gas valves. Available in sizes from 2 in. to 60 in. with ambient temperature up to 1,500 degrees F. Materials include cast iron, carbon steel, iron & stainless steel. Applications include HVAC, furnace, power, blower & exhaust air transfer systems.
www.pdcvalve.com/index.html

Johnson Bros. Metal Forming Co. - Berkeley, IL
Manufacturer, Custom Manufacturer, Service Company
Manufacturer, custom manufacturer, service company, roll forming in all metals: U-channels, C-channels, hat channels, box & strut channels, angles, zees, mouldings, profiles, tracks, slides, purlins, louvers, slats, strips, panels, framing, rings, rims, ring clamps, tubing in: open seam, lock seam, split seam, in special shapes. Veteran owned. 20 plus lines. Inline fabrications: holes, slots, end fabricating, cut-to-length, notching, cutouts, shear forms, miters, deburring, ring bending, sweeps, embossing, perforating, tabs. Prefinishes available: galvanized, prepolished, preplated, prepainted, preanodized, prelaminated, aluminized, strippable-PVC, embossed.
www.JohnsonRollForming.com

Metallized Carbon Corp. - Ossining, NY
Manufacturer, Custom Manufacturer
ISO 9001:2008 certified custom manufacturer of dampers for hot air, louver & ventilation systems. Other products include mechanical seals, bushings, self-aligning assemblies, bearings, vanes, rotors, electrical contacts & brushes.
Brand Names: METCAR

Automated Valve & Equipment Co. - Cleveland, OH
Distributor, Manufacturer, Custom Manufacturer, Manufacturers' Rep, Service Company
Distributor of hot air dampers or relief valves for pressure controlling, reducing & regulating applications. Relief valves are made from bronze & cast iron & available in 1/2 in. to 3 in. sizes with 1 psi to 300 psi inlet pressure, 1/2 in. to 1 in. EPDM seals & seats & springs. Relief valves are suitable for sprinkler systems, irrigation, fountains, fire protection systems & water pump by-pass applications. Capabilities include valve actuation & mounting, fabricating, designing & machining.
www.valvepros.com/wd/pressure-regulating-va...

Jackson Systems LLC - Indianapolis, IN
Distributor, Manufacturer, Custom Manufacturer
Manufacturer of dampers. Providers of a wide selection of in-stock round, rectnagul & retrofit dampers.
jacksonsystems.com/search/category/213

Control Equipment Co., Inc. - Schaumburg, IL
Manufacturer
Design & manufacturer of hot air, isolation & knife gate 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 hot air dampers available in square, rectangular & round shapes & variety of flange sizes. Features of hot air 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. Hot air 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...

Shan-Rod, Inc. - Berlin Heights, OH
Manufacturer, Custom Manufacturer, Service Company
Custom manufacturer of dampers for hot air applications. Specifications of dampers include 300 degrees F to 400 degrees F operating temperature, 25 psig to 300 psig maximum static operating pressure, 1 psi to 50 psi shut-off pressure drop, 72 in. dia. header isolating valves, 36 in. replacement seals & 20 in. dia. isolation valves. Features include bubble tight shut-off seats, pneumatic, electric, hydraulic & manual actuation, positive seals & double disc, stainless stub shafts, disc edge, plate flange, taper pins, packing followers & bearings, carbon stub shafts, carbon inboard bushings, lubricated stuffing boxes & purge fittings.
www.shanrod.com/images/2nd_level/4300/4300....

The CMM Group - De Pere, WI
Manufacturer, Custom Manufacturer, Service Company
Custom designed air pollution control equipment/systems includes thermal & catalytic oxidizers to destroy up to 99.9% of VOCs/HAPs in process air streams. Secondary heat recovery systems reduce energy costs. Complete turnkey services include facilities engineering, design/installation, materials management/procurement, system rebuild/retrofit, maintenance & repair programs, catalyst cleaning/replacement. Industrial web dryers & ovens provide superior drying uniformity, peak efficiency, highest quality.
www.thecmmgroup.com/

Advanced Valve Design, Inc. (AVD) - Whitehall, PA
Manufacturer, Custom Manufacturer
Manufacturer of standard & custom light duty duct dampers for HVAC systems & low pressure industrial applications. Light duty duct dampers are available in various alloy materials including 304 & 316 stainless steel & aluminum with 12 ga. to 16 ga. frames & blades. Dampers are designed for use with clean gas systems.
www.advancedvalve.com/light-duty-dampers.ph...

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

Air Specialties Express - Verona, WI
Manufacturer
Manufacturer of hot air dampers including duct, opposed blade, air conditioning & ventilation system dampers. 6 in. to 16 in. dampers feature round neck, lever operated, electrocoated acrylic finish & gray color. Dampers are suitable for square & rectangular diffusers. UL, ETL & cUL listed.
Brand Names: Air Specialties Express

Senior Flexonics Pathway Inc. - New Braunfels, TX
Manufacturer, Custom Manufacturer
ISO 9001:2000 certified manufacturer & designer of heating & hot air dampers including guillotine dampers. Guillotine dampers are used for blocking flow in rectangular & round ducting & isolating flue gas applications. Features include self cleaning blade seats, self lubricated sleeve bearings & corrosion resistant drive & follower shafts. Guillotine dampers have sealing efficiency of 99.75 percent to 100 percent. Applications include scrubbers, precipitators, oxidizers, bag houses, heaters, incinerators & burner fuel lines. Options include enclosed bonnets, dual blade, seal air systems, position indicators & instrument ports. Heating dampers can be customized as per specific requirements. Meet ASME, USCG, API, ANSI & Military Spec.

Graphite Metallizing Corp. - GRAPHALLOY - Yonkers, NY
Manufacturer, Custom Manufacturer
ISO 9001:2000 certified custom manufacturer of high temperature bearings, general purpose bushings, high temperature thrust washers, flange type bushings & block type bushings. Split double flange bushings, pump wear parts, pillow blocks, flange blocks, hanger bearings, cam followers & electrical brushes & contacts are also available. Applications include automotive, chemical, conveyors, dampers, dryers, furnaces/ovens, food equipment, primary metals, mixers/agitators, petrochemical, pumps, pulp & paper, textile, semi-conductors, imaging equipment & linear motion.

SPX Heat Transfer Inc - Bethlehem, PA
Manufacturer, Custom Manufacturer
Manufacturer of steam turbine isolation dampers for the power generation industry. Guillotine & louver types. Specializing in flue gas desulfurization system dampers. Parts & service for Mosser dampers.

Ventilation Direct - Raleigh, NC
Manufacturer, Custom Manufacturer
Manufacturing Ventilation & HVAC Products. Complete Line Of Exhaust & Ventilating Fans, Features Include External Disconnect Switches, Quick-Release Latches & Variable Pitch Motor Pulleys. Heaters: Electric, Direct & Indirect, Meeting UL, ETL & ANSI Standards & Burn Both Natural Gas & Propane. Air Make-Up Units, Parts & Motors. Custom Product Design & Engineering Services Available

L.J. Wing Limited - Dallas, TX
Manufacturer
Manufacturer of industrial heating systems, door heaters & ventilation systems

Hart & Cooley, Inc - Grand Rapids, MI
Manufacturer
Manufacturer of air registers, grilles, diffusers, duct systems & metal, gas & fuel chimney systems.

Ark-Les Corp. - Stoughton, MA
Manufacturer, Custom Manufacturer
Manufacturer of custom hot air vent dampers serving the appliance industry for dishwasher & dryer applications. Additional services include on-site engineering to facilitate design development & change.

Ruskin Power & Process Group - Clinton, MO
Manufacturer, Service Company
Louver, Guillotine, Butterfly & Diverter Dampers

Southwark Metal Mfg. Co. - Philadelphia, PA
Manufacturer, Custom Manufacturer
Ducts & Fittings, Furnace Pipe & Elbows; Residential

ProcessBarron - Pelham, AL
Manufacturer, Custom Manufacturer, Service Company
Manufacturer of custom dampers, expansion joints metallic & fabric, ductwork, fans & air handling systems. Serving the utility, pulp & paper, cement & steel industries.

United Enertech - Chattanooga, TN
Manufacturer, Custom Manufacturer, Service Company
Manufacturer of dampers including hot air, louver, seismic, acid resistant, air conditioning, ventilation system, duct, isolation, heat resistant & electrically operated vent dampers.

Turner EnviroLogic, Inc. - Deerfield Beach, FL
Manufacturer, Service Company
Butterfly, Parallel & Opposed Blade Design Dampers In Various Alloys For Temperatures Up To 2000 Degrees Fahrenheit. Includes Refractory Lines Housings & Actuators