Variable speed circulator
The HEC-2 Bumble Bee variable speed circulator by Taco uses ECM and permanent magnet motor technology.
Taco’s Bumble Bee high-efficiency variable speed circulator, the HEC-2, is a wet-rotor circulator using ECM and permanent magnet motor technology. It uses up to 85% less electricity than a standard circulator, and its out-of-the box settings and 360-deg swivel flange make it easy to install. Taco’s exclusive Delta-T technology boosts electrical savings by 15 to 19 times by making the entire system run more efficiently. With the ability to determine the exact flow required to match ever-changing building heat loads, the Bumble Bee can reduce boiler short cycling, increase total system efficiency, maximize energy savings, and improve consumer comfort. The Bumble Bee operates over a broad performance range, with flow up to 15 gpm and head up to 15 ft. The Bumble Bee is designed for many hydronic, radiant heat, boiler protection, fan coil, and snowmelt applications.
Annual Salary Survey
After almost a decade of uncertainty, the confidence of plant floor managers is soaring. Even with a number of challenges and while implementing new technologies, there is a renewed sense of optimism among plant managers about their business and their future.
The respondents to the 2014 Plant Engineering Salary Survey come from throughout the U.S. and serve a variety of industries, but they are uniform in their optimism about manufacturing. This year’s survey found 79% consider manufacturing a secure career. That’s up from 75% in 2013 and significantly higher than the 63% figure when Plant Engineering first started asking that question a decade ago.