• Preferred Utilities | Fuel Oil Handling
• Preferred Instruments | Boiler Controls
• W.N. Best | Combustion Systems
• Preferred Engineering | Nuclear Outage Support

Preferred Utilities

Preferred Utilities engineers and fabricates fuel oil handling systems for diesel generators and dual-fuel fired boilers for mission critical facilities such as data centers, hospitals, and emergency response facilities.

• Fuel Oil Transfer Pump Sets
• Day Tanks
• Fuel Filtration Systems
• Fuel Oil Heaters and Assemblies
• Tank Monitoring
• Pump and Motor Assemblies
• Fuel Oil Specialties
• Diesel Fuel Oil Additives and Treatments

Preferred Instruments

Preferred Instruments manufactures microprocessor based controllers, instruments, and electric actuators for combustion and process applications. Preferred Instruments also manufactures oil tank gauging and leak detection equipment.

• Actuators
• Control Systems
• Controllers
• Flame Safeguard Components
• Monitoring Systems
• Transmitters and Sensors

W.N. Best

W. N. Best Combustion Equipment, founded in 1890, manufactures industrial #2 through #6 oil and gas burners, along with specialty systems and burners for thermal decomposition of sludge and contaminated petroleum products for product regeneration and heat recovery.

• AP Burner
• Register Burners
• Thermopak Burners
• Waste Fuel Burners

Preferred Engineering

Formed in 1980, Preferred Engineering engineers and manufactures Outage Support Equipment for nuclear power plants. Products include: Main steam line plugs for MSIV testing, Stud hole plugs, remotely actuated lifting devices, quick lock fastening and seal systems and many others.

• Cleaners
• Lifting and Structures
• O-Ring Products
• Plugs
• Refueling Apparatus
• Seals and Covers

Seals and Covers

Key Features

• Easy To Install
• No RTV Type Sealants
• No Post Use Cleanup
• Reliable Sealing Time After Time
• Reusable Seal

Product Examples

• Sand Box Covers With "Quik-Bolts"
• NI Box Covers With "Quik-Bolts"
• Inspection Hatch Covers
• ERCD Covers With "Quik-Bolts"
• Ex Core And Blow Out Covers: These, and the several type of covers listed above, use an engineered gasket system in conjunction with our Quik-Lok® Cam Bolts or Nuts. The system can be designed around existing Covers to reduce costs. The System results in a fast, reliable, and leak-tight installation for traditionally troublesome leak paths
• Fuel Transfer Tube Closure Systems: This design uses Preferred Engineering's unique Quik-Lok® Toggle Bolt. These high-strength quick-throw cam fasteners are coupled with an engineered dual gasket system. Together, the Closure System replaces the standard 20-24 bolts with 4 Toggles. The completed system can be leaktested between the seals to assure proper installation. The result is a dramatically reduced Fuel Transfer Cover installaton time with reduced dose.