Develop a standard or standard(s) for valve positioner evaluation and performance criteria. Positioners may accept pneumatic or electric, or other inputs. Outputs may be pneumatic, or other, to ...

The technical report is limited to automated valves normally operating in either a full open or full closed position. The boundary of the ... To provide basic requirements for pneumatic, electric, ...

Festo introduces its Controlled Pneumatics technology which features digital closed-loop control for applications ranging ...