United States
  • Booth: 1808

Welcome to R-V Industries, supplier of utility equipment.

R-V Industries is a uniquely diversified engineering and manufacturing company providing OEM equipment upgrades to power utilities. Over 42 years of technical knowledge and manufacturing capability combine to provide the best combustion system designs, engineered solutions, and equipment in the world. 


  • Thermal Guard Coal Nozzles
    Thermal Guard® Series I & II is designed for more severe duty applications in upper elevations and hot corners. The self-cooling Thermal Guard® Series design extends the performance life of coal and air nozzle tips....

  • To establish the effectiveness of the Thermal Guard® Series I and II nozzle tip designs compared to other brands, thermocouples were installed on the inside and outside of the top plate to measure the temperature gradients. The Thermal Guard® Series I and II repeatedly showed lower temperature gradients across the outer plate, reducing thermal distortion. The design features an opening barrier that forces air across the outer nozzle plates, providing a cooling air barrier. The design also incorporates a ported film cooling system near the end of the nozzle to further protect the outer plate from thermal distortion. Benefits Include: Aerodynamic thermal radiation barrier, Contoured corners, Additional ported film cooling system, Various erosion protection options, Pivot pin design available for furnace side removal, Solidly welded inner annulus assures rigidity, Shielded corner welds


  • Chromium Carbide Lined Coal Nozzles
    Chromium carbide lining on a steel shell throughout the inlet, transition and sides of the discharge throat. When compared to cast nozzles, our wear options provide superior protection against coal flow erosion...

  • Chromium Carbide Lined Nozzles

    As budgets have tightened, the power generation industry was also looking for a lining that would be more easily repaired when wear occurs. Today, our most popular design is the chromium carbide lined stationary coal nozzle. The coal nozzle is fabricated from chromium carbide weld overlay on carbon steel base plate. When wear does occur, it can be easily repaired by plant personnel by simply laying chromium carbide weld overlay on top of the worn area. Our designs maintain the existing nozzle ID and do not require any modifications to the burner front for installation.

    Chromium carbide weld overlay can be applied to a variety of materials including carbon and stainless steel. Typical overlay hardness ranges from 52 to 64 Rockwell C. Chromium carbide lined equipment has a long, successful history of abrasion resistance in the mining and power industries. Based on the abrasive climate and temperature of the nozzle internals, chromium carbide weld overlay is an excellent choice for the lining of a stationary coal nozzle. 

    R-V offers complete shop assembled coal nozzle assemblies including the coal nozzle tip, seal plate, support bracket assemblies, pivot pins, adjusting links and link pins. We also offer a “no seal plate” design and a design that centers the coal nozzle tip from the rear of the windbox.

    Stationary Coal Nozzle History

    The original equipment material for stationary coal nozzles has been cast ductile iron for over fifty years. While ductile iron provides only slightly better wear properties than carbon steel plate, it offers a low cost option for this product. For certain coals, ductile iron nozzles are a cost effective choice and offered by R-V.

    In the 1980’s coal fired power plants began demanding a material option that would provide increased wear life. In 1986, R-V Industries pioneered the ceramic lined stationary coal nozzle design. It consisted of a fabricated carbon steel shell that is lined with pre-engineered high alumina ceramic tiles. This design became an industry standard when several companies, including numerous OEMs, began to offer it. While wear life of ceramic lined nozzles is multiple times that of ductile iron castings, some utilities began to experience tiles dropping from the roof of the nozzle near the fireside end. This problem occurred with all vendors and was likely the result of thermal related failures.

    In the early 2000’s, R-V began to offer a combination of ceramic and high alumina rammable refractory lined stationary coal nozzle. The ceramic tiles were limited to the round inlet section with the refractory being used to line the transition section. While the refractory is not quite as wear resistant as ceramic tile, it offered very good wear resistance with a secure lining method that is not susceptible to thermal related failures. R-V still offers this combination of ceramic and refractory lined design.

    The newly engineered kit assembly gives utility operators the ability to convert standard distributor riffle housings to adjustable riffle housings without removing the housing from its location in the coal distribution piping system....

  • No longer do you need to use multiple systems such as orifices, fixed riffles or other devices that do not complement each other. This EPRI tested design is available as a direct replacement or as an upgrade to most existing riffle distributors. The design is built to last, with AR-400 control vanes that are strong enough to withstand the corrosive environment of the coal supply lines.

    Convert outdated, standard riffle distributor housings with the adjustable riffle kit assembly that saves significant costs and turnaround time for shutdown efficiencies.

    Better distribution of primary air reduces coal layout problems in horizontal pipes runs and significantly reduces the possibility of coal line and fuel nozzle fires.

    System resistance is equal to, or less than, the current riffle design. This improves component by not increasing the erosion effects of increased resistance.

 Additional Info

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