阀门定位器能够按系统输出的控制信号进行定位

 关键字：阀门定位器        http://www.samson-china.com/

　　阀门定位器采用的板块结构与部件标准化接插技术，工作可靠，控制精度高，调试简洁，维修方便，该产品正、反作用，单、双作用之间可方便转换。拥有空气消耗量小，零度调节和量程调节非常简单，反应速度快，反馈杆连接非常简单的特点。

　　机械式阀门定位器接收来自控制器或控制系统中4~20mA等弱电信号，向气动执行机构输送空气信号来控制阀门位置的装置。与气动调节阀配套使用，构成闭环控制回路。把控制系统给出的直流电流信号转换成驱动调节阀的气信号，控制调节阀的动作。同时根据调节阀的开度进行反馈，使阀门位置能够按系统输出的控制信号进行正确定位。 　　阀门定位器出现线性不好的时候如何应对： 　　(1)反馈凸轮或弹簧选择不当或者方向不对。 　　(2)反馈连杆机构安装不好或者在某些位置有卡住的现象。 　　(3)喷嘴或挡板有异物。 　　(4)压有轻微泄漏现象。德科蒙过程控制(武汉)有限公司座机:027-88062221传真:027-88068180邮箱:      sales@whdkm.com原文出处：http://www.samson-china.com/a/xwzx/289.html  ABSolute;top:0;border:0;width:undefinedpx;height:undefinedpx;" SANdbox="allow-forms allow-popUPS allow-popups-to-escape-sandbox allow-same-origin allow-scripts allow-top-navigation-by-user-activation" frameborder="0" src="https://googleads.g.doubleclick.net/pagead/ads?guci=2.2.0.0.2.2.0.0&client=ca-pub-6745515041074118&ouTPUt=html&adk=1812271804&adf=3279755396&plat=1%3A32776%2C2%3A32776%2C8%3A134217728%2C9%3A134250504%2C10%3A32%2C11%3A32%2C16%3A8388608%2C17%3A32%2C24%3A32%2C25%3A32%2C30%3A1081344%2C32%3A32%2C40%3A32&format=0x0&url=https%3A%2F%2Fwww.bizrobot.com%2Fcompany_bloginfo.php%3Fact%3D1&ea=0&flash=32.0.0&pra=5&wgl=1&tt_state=W3siaXNzdWVyT3JpZ2luIjoiaHR0cHM6Ly9hZHNlcnZpY2UuZ29vZ2xlLmNvbSISInN0YXRlIjowfSx7Imlzc3Vlck9yaWdpbiI6Imh0dHBzOi8vYXR0ZXN0YXRpb24uYW5kcm9pZC5jb20iLCJzdGF0ZSI6MH1d&dt=1605685476213&bpp=3&bdt=1513&idt=182&shv=r20201112&cbv=r20190131&ptt=9&saldr=aa&cookie=ID%3D5fb7eae809183df8-22fd78660ec40024%3AT%3D1602660717%3ART%3D1602660717%3AS%3DALNI_MYMQQp2TnvCbvJQtTRQsdNX_-71Bg&nras=1&correlator=1895636622524&frm=23&ife=1&pv=1&ga_vid=490787667.1605685476&ga_sid=1605685476&ga_hid=911357694&ga_fc=0&iag=3&icsg=138&nhd=1&dssz=5&mdo=0&mso=0&u_tz=480&u_his=8&u_java=0&u_h=1080&u_w=1920&u_ah=1030&u_aw=1920&u_cd=24&u_nplug=17&u_nmime=34&adx=-12245933&ady=-12245933&biw=1243&bih=605&isw=730&ish=360&ifk=2699508910&scr_x=0&scr_y=0&eid=21066922%2C21068084&oid=3&pvsid=1753108026612129&pem=16&ref=https%3A%2F%2Fwww.bizrobot.com%2Fcompany_bloginfo.php&rx=0&eae=2&fc=1920&brdim=0%2C0%2C0%2C0%2C1920%2C0%2C1920%2C1030%2C730%2C360&vis=1&rsz=%7C%7Cs%7C&abl=NS&fu=8204&bc=31&ifi=0&uci=0.szjrge6kbjlz&fsb=1&dtd=204" marginwidth="0" marginheight="0" vspace="0" hspace="0" allowtransparency="true" scrolling="no" allowfullscreen="true" data-google-container-id="0.szjrge6kbjlz" data-load-complete="true">