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Case Study - Light Butler: An Integrated Lighting System
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From GRT-Mars, Inc.
While working on a home lighting project, Alan Butler found a need for a lighting control device that combined a digital timer, motion detector, photo sensor and dimmer in one compact package. Searching the shelves of some large home centers in Alpharetta with no success, he discussed his lighting needs with cousin and established businessman, Jeff Smith. Jeff felt there had to be such a device already on the market. Product Announcements
Topics of Interest
In describing the design elements of a globe valve, the globe body is the
main pressure-retaining portion of the globe valve, which has matching
end connections to the piping and also encloses the...
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The gate is attached to the manual operator through the gate stem, which
may be either fixed (rising stem) to the gate or threaded (nonrising stem)
to the gate. The fixed-gate stem does not turn...
(Read More)
The most common plug-valve design allows for straight-through, two-
way service (inlet and outlet), with the closure element in the middle
of the body. The closure element, which is a plug and a...
(Read More)
The globe-style body is the main pressure-retaining portion of the valve
and houses the closure element. The flow passages in a globe valve are
designed with smooth, rounded walls with no sharp...
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The butterfly body typically involves one of two styles. The wafer body
(sometimes called the flangeless body) is a flat body that has a minimal
face-to-face, which is equal to double the required...
(Read More)
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