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preferred mfg

Preferred Utilities Manufacturing Corporation is an engineering-based manufacturer of products for commercial, institutional, industrial and nuclear power facilities.

Our products include fuel oil handling systems and components, boiler instrumentation and controllers, high quality burners and nuclear power plant outage reduction tools and component parts. Continuous research and development is applied to our existing products and is helping us to lead the industry with new and innovative power plant solutions.

Preferred Utilities’ manufacturing, engineering and administrative headquarters is located in Danbury, Connecticut. Preferred Special Combustion Engineering is located in Tulsa, Oklahoma. Regional sales and service offices are located throughout the United States. Preferred Utilities’ regional sales offices serve to continuously strengthen the sales and service capabilities of our independent representative organizations.

Five Divisions

Preferred Utilities engineers, designs, and fabricates fuel oil handling systems for boilers and diesel generators. Typical systems include fill containers, transfer pumps, day tanks, tank monitoring equipment, filtration systems, and control systems.

Preferred specializes in engineered systems for mission critical facilities such as data centers, emergency response centers, hospitals, and pumping stations. The new FSC controller was specifically designed for large, spread out fuel systems for data center customers.

Custom pump set with duplex basket strainers

Preferred Instruments manufactures microprocessor based controllers, flame detectors, instruments, and electric actuators for combustion and process applications. Preferred Instruments’ products include linkageless controllers, boiler lead/lag controllers, boiler monitoring instruments, draft controllers, and actuators.

Through the acquisition of G.N. Electronics in 2007, Preferred became a major supplier of flame safeguard and control systems for the process heating industry. With a complete line of flame safeguard products including flame safeguard controllers, annunciators, and flame scanners, Preferred has the products and expertise for your process control application.

W.N. Best Combustion, founded in 1890, manufactures industrial low NOx No. 2 - No. 6 oil and gas burners, along with specialty systems and burners for thermal decomposition of sludges and contaminated petroleum products for product regeneration and heat recovery.

W.N. Best specializes in sulfuric acid sludge decomposition and elemental sulfuric acid production. In 2001, W.N. Best introduced its new, industrial, high efficiency, low emissions burner for No. 2 - No. 6 oil and gaseous fuels. This low emissions burner utilizes state-of-the-art control and mechanical technology to produce low-NOx combustion at the highest efficiencies possible in the marketplace today.

API-AF Burner for Firetube Boilers

Preferred Engineering was formed in 1980 and engineers and manufactures outage support equipment for nuclear power plants. Products include: Main steam line plugs for MSIV testing, RPV plugs, remotely-actuated lifting devices, quick lock fastening and seal systems and many others. Preferred Engineering furnishes a full Nuclear Quality Control program.

Fuel Plug

Preferred Special Combustion Engineering builds high-end burner applications for industrial, utility, and refinery applications. Typical burner systems include burners and fuel trains, flame safeguard and combustion control systems, project management and field start-up.

Projects may include blending stations for simultaneous firing of multiple fuels including natural gas, light or heavy oil, digester gas, landfill gas, refinery gas, or blast furnace gas. Combustion projects are often supported by computational fluid dynamics software as well as physical flow modeling of furnaces and ductwork.

Coal-to-Gas Burner Conversion