During refueling outages, Reactor Pressure Vessel (RPV) cavity flooding can unnecessarily increase maintenance time and exposure. Preferred Engineering’s Stud Hole Plug Set provides a proven solution, sealing stud holes to prevent water intrusion – preserving critical flange components and eliminating the need to clean flooded threads. Engineered specifically to prevent cavity water from contaminating the threaded holes, the […]
Powering Data Centers with Hardened Fuel Systems – Shipment #1 Out the Door!
Preferred Utilities is thrilled to announce that the first of six major shipments has left our facility, headed straight to a mission-critical data center project. In this deployment: our reliable, redundant, and secure fuel oil systems engineered specifically for high-stakes environments. Shipment #1 includes: These aren’t your average components—each tank and manifold is part of a fully integrated […]
Winterizing Genset & Boiler Fuel Systems: Tips for Facility Managers
As seen in Facility Management It’s never too late (or too early) to winterize! Facilities managers need to ensure that their backup power and heating systems can withstand freezing conditions. Gensets and boiler fuel systems, which often rely on diesel fuel, are vulnerable to cold weather issues like fuel gelling and ice formation. This article discusses some common […]
Preferred Utilities Receives Two Major Third Party Approvals
Preferred Utilities Receives UL Listing to Fire Biodiesel for API Burner and UL Listing/CSA Certification for Comet Burner. New UL Listings highlight quality and sustainability. Read the Press Release Here — DANBURY, CT Preferred Utilities Manufacturing Corporation has received UL certification for its Advanced Performance Inject-Aire (API) Low NOx Burner and both UL and CSA certification for its Comet Burner. They […]
Cut Critical Path Time with the RPV Stud Cap
During refueling outages, tasks like removing and reinstalling elongation rods from Reactor Pressure Vessel (RPV) studs can add significant time to maintenance procedures. Preferred Engineering’s RPV Stud Cap eliminates that inefficiency, streamlining the outage. The RPV Stud Cap allows elongation rods to remain installed inside the stud throughout the maintenance process. Traditionally, rods are removed to prevent damage […]
Made in the U.S.A. – How Preferred is Navigating Tariffs, Supply Chains, and a Growing Demand
Recent economic shifts and international trade tensions have sent waves through the markets. Tariff uncertainty and global supply chain challenges are causing many companies and investors to worry about the future of their operations and product availability. Made in the U.S.A., Preferred Utilities is proud to offer customers confidence and clarity in uncertain times. At Preferred, our products […]
Burner Management Series IV: BMS Troubleshooting and the Advantage of Parallel Annunciation
As safety monitoring is the primary function of a burner management system, there are many ways that a burner trip can occur. While this is the desired response to an unsafe condition, if a burner management system with a series interlock circuit is being used, it can often be difficult to troubleshoot why the lockout is occurring. This […]
Preferred Utilities’ API Burners Now UL Listed to Fire B5 – B100 Biodiesel Fuel
Danbury, CT – Preferred Utilities is proud to announce that our API gas and oil burners are now UL certified to fire up to 100% biodiesel fuel under UL 296 (Standard for Safety – Oil Burners). This certification marks a significant milestone, allowing customers in jurisdictions that require UL-listed equipment—such as New York City and Massachusetts—to take advantage […]
Reliable Sealing for Nuclear Maintenance with the Recirculation Suction Nozzle Plug
Reliability and safety are core to nuclear reactor maintenance, and that’s exactly what you get with Preferred’s Recirculation Suction Nozzle Plug (N1). It is designed to provide a secure and repeatable seal of the recirculation suction nozzle for Boiling Water Reactors (BWRs), ensuring safe isolation during outages. With its precision fit, dual-seal design, and reliable seal, the N1 […]
Streamlining Outage Efficiency at a Pennsylvania Nuclear Power Plant
As seen in POWER Magazine Nuclear power plant outages demand efficiency, safety, and a high level of coordination to execute time-critical tasks and bring plants back online quickly. When a Pennsylvania nuclear power plant faced excessive critical path time due to outdated steam line plugs and a unique control rod blade transportation and storage requirement, the plant’s leadership […]