Made in the U.S.A., This project was fast tracked so all burners got their own set of wheels! Preferred was happy to work closely with one of our discriminating, long time State Agency customers to package these excellent Preferred combustion and controls with Johnston boilers – together for an ultra high efficiency and low emissions boiler plant. The […]
Third-Party Approval for Vacuum Leak Detection System
Made in the U.S.A., Our Vacuum Leak Detection System is now listed on the National Work Group for Leak Detection Evaluations (NWGLDE) website. The NWGLDE list is “a compilation of storage tank and associated piping leak detection equipment that have undergone Third-Party Evaluations and have been found by the Work Group to meet the evaluation requirements contained in accepted […]
“I know what Modbus is, but what is BACnet?”
-Rob Frohock See also: Modbus RTU verses Modbus TCP/IP: What’s the Difference? In industrial settings, Modbus is one of the oldest protocols for devices to communicate their data digitally to a central controller. It allows transmitters to send integer data to controllers…it allows controllers to send integer data to SCADAs…and it is very easy to use. BACnet is […]
Five Considerations for Pumping and Storing Liquid Biofuels
-Dan Wallace, Danbury, CT Why do you need to know about biofuel handling? End users, governments, and private enterprises are looking for ways to reduce carbon emissions while minimizing capital equipment costs, and the equipment impacted ranges from backup diesel generators to industrial boilers. While the customer needs for this fuel are becoming more pronounced, third party testing […]
Watchdog Circuits in Burner Management
-Howard Wells, Preferred Utilities, Danbury, CT Introduction Have you ever seen a PLC-based burner management system and wondered “Why are the inputs turning on and off every few seconds?” This “flashing” of the inputs is a type of error checking for the PLC discrete input channels and is required by NFPA 85 for all non-SIL3 rated PLC-based burner […]
NYC College Implements a Boiler Retrofit on a Budget
See the article published here. The boiler system at Columbia Teachers’ College in New York City had been in need of an upgrade for a while, but the cost of new boilers created a challenge confronted by many facilities with tight budgets and aging boiler rooms. Faced with a system that had numerous problems, administrators had to find […]
Preferred Service: When Expertise Matters
-Alex Canney, Northeast Regional Office In the middle of the week, we had a preventative maintenance service for a filtration unit scheduled in Maine (see Pic 1) and as we were walking in found out that a Massachusetts hospital had an urgent need for troubleshooting their fuel oil system. We were able to complete the work at the […]
NYC Schools Pressure Atomized Combustion
At our newest site in the NYC school system, Preferred converted their burners to (4) Preferred API-AF pressure atomized burners with Preferred’s BurnerMate Universal control systems and opacity monitors. Pressure atomization depends on the oil pressure inside the nozzle tip to spray a fine mist of oil, very similar to a spray bottle. The micronized oil droplets are […]
PE Jet Pump Plug
Made in the U.S.A. Preferred Engineering Jet Pump Plugs assembled, tested, and ready for action! These plugs are specifically designed to seal the nozzle of a jet pump mixer opening in a BWR nuclear power plant. Actuated mechanically and designed for easy installation with a light duty handling pole, these plugs give our customers peace of mind during […]
Plant Engineering Series: Boiler Room Demystified
Easy to reference on any project, the Boiler Room Demystified is the first in our Plant Engineering Series. Get useful tips and rules of thumb from calculating efficiency to finding correct boiler sizing for your application! Contact Us for your own printed copy! SEE ALSO: Fuel Oil Systems Demystified