Intelligent Valve Positioner Model SRD991
This report deals with the evaluation of two electro-pneumatic valve positioners, model SRD991, in a single acting and a double acting version. The instruments were standard production models, manufactured by INVENSYS Eckardt S.A.S., 20 Rue de la Marne, F-68360 Soultz (France). The instruments were evaluated to a test programme drawn up by the WIB project team and TNO and accepted by the manufacturer. One positioner was mounted on a single acting actuator/valve assembly with linear stroke, manufactured by Eckardt. The other positioner was mounted on a double acting, rotary actuator/valve assembly, manufactured by Neles Jamesbury.
Please login to download this file.