Not all valves are the same. For PEX piping systems, whether plumbing or hydronic heating and cooling, the type of valve you specify and install can actually impact system quality and performance.

Surging gas prices and impending regulations are causing automakers to hunt for ways to increase the efficiency of gasoline engines. One of the chief inefficiencies of these engines is the restriction ...

Most modern variable valve-timing (VVT) systems use a cam phaser that rotates the position of each cam­shaft relative to the timing chain. Think of making a record turntable go faster or slower by ...