西门子阀门定位器73系列的简单介绍Series73Built-InValvePositionersThislineofcompactinstrumentsincorporatesasingle-axis,force-balanceprincipleofoperationtoensureaccurateandstablecontrolvalvepositioning.Inallcases,includingbottom-loadi西门子阀门定位器73系列的详细信息Series 73 Built-In Valve Positioners This line of compact instruments incorporates a single-axis, force-balance principle of operation to ensure accurate and stable control valve positioning. In all cases, including bottom-loading applications, a Model 73 Built-In Valve Positioner is mounted directly on the topwork of the valve, with no external levers or other exposed mechanisms. |