San Bruno Assemblyman Jerry Hill says PG&E should have installed an automatic shutoff valve for such a large pipeline in such a populated area. "If an appropriate valve had been in place the gas could ...

Like so many of the core technologies integral to automated industrial operations—such as motors, drives, and I/O—valves don’t always receive the attention they deserve in the automation arena.

The article will then look at valve types very briefly before focusing on digital positioners. It will examine the expectations that the user should have with regards to digital positioners, for ...