» Ruth O’Donnell

Preferred Utilities Supports Cub Scouts Pack 33: A Commitment to Community and Youth Development

As seen in the Danbury Patch At Preferred Utilities, we believe in the power of community and the importance of supporting initiatives that nurture future leaders. We are thrilled to support the Cub Scouts Pack 33 Golf Tournament fundraiser again this year on July 29th in Middlefield,CT. Cub Scouts Pack 33, based in Groton, Connecticut, has been a cornerstone […]

Hardening Emergency Systems: Preferred’s Submersible “Waterproof” Pumpset Performs when it Matters Most

When Hurricane Beryl swept through Texas, it highlighted the vulnerability of mission critical and healthcare facilities to extreme weather events. Power outages caused by the storm left over 2 million without electricity, posing severe challenges for 17 hospitals and additional healthcare centers due to flooding and then heat. Emergency evacuations, temporary medical setups, and the strain on healthcare […]

Preferred Day Tanks Now Approved for Florida Applications

We are pleased to announce that our 560gal and 620gal day tanks have received approval from the Florida Department of Environmental Protection (DEP). This approval opens up new opportunities for providing reliable and efficient fuel storage solutions in the state of Florida.  Key Features of Preferred Day Tanks: The FSC-120 controller, also approved by the Florida DEP (EQ-995), […]

Preferred Day Tanks Now OSP Shake Tested and Approved

Preferred Day Tanks have received HCAI/OSHPD OSP Shake testing approval, ensuring they meet stringent specifications for seismic activity. This means our tanks are designed to survive and perform even in earthquake-prone areas, making them ideal for mission-critical facilities. Key Features: During testing, the tanks were filled with water. A negligible amount of liquid was expelled due to the vent’s […]

Emergency Removal of a Main Steam Line Plug: A Case Study

Preferred Engineering has decades of experience with the Main Steam Line Plug, and sometimes unique situations arise that make our our expertise in installation and removal especially important. A recent project required us to employ an MSLP Emergency Removal tool during the installation process. One of the latch mechanisms on the plug jammed during the plug installation, and […]

Fuel/Air Cross-Limiting

What is the Application? Steam supply and heating loads in a boiler plant vary throughout the course of the boiler firing cycle. In response to this, the boiler firing rate output % is continuously adjusting to maintain steam or temperature setpoint. This means that the boiler controller’s outputs (typically a fuel valve positioner, air damper positioner, and variable […]

Drum Level Control Essentials

What is the Application? As boilers convert water into steam to supply the plant’s load demand, more water must be supplied to the boiler to maintain the drum level at setpoint. In a modulating PID system, Boiler feedwater flow is controlled by the drum level controller by modulating a feedwater control valve which can be opened to give […]

Learning from Preferred’s Main Steam Line Plug Operating Experience

Preferred Engineering has extensive experience with the installation and removal of Main Steam Line Plugs. Over the years, we’ve developed a number of best practices that are key to maximizing efficiency and cutting critical path time. Here are some of the most important procedures we’ve established in recent MSLP projects: Camera Positioning Camera placement is one of the […]