The new Exa Star modulating controls are 3/8- to 1-inch modulating valves. They feature high precision, low hysteresis, and custom output characteristics to provide the desired control. “Whether by ...

Valvular heart disease is a form of heart disease that occurs when one or more of the heart’s four valves don’t function properly. Valve replacement surgery may be an option if the valves of your ...

This subcommittee work applies to all rotary or reciprocating, on off or modulating valves with actuation. It also includes positioners and transducers as applicable. It provides a standard for ...