寶德8635位置調(diào)節(jié)儀
閥門定位器的精度如何?在理想情況下,對應某一輸入信號,調(diào)節(jié)閥的內(nèi)件(包括閥芯、閥桿、閥座等)每次都應準確地定位在所要求的位置,而不管行程的方向或者調(diào)節(jié)閥的內(nèi)件有多大的負載。閥門定位器對空氣質(zhì)量的要求如何?由于只有極少數(shù)供氣裝置能提供滿ISA 標準(有關儀表用空氣質(zhì)量的標準:ISA標準F7.3)所規(guī)定的空氣,因此,對于氣源或電-氣)閥門定位器,如果要經(jīng)受得住現(xiàn)實環(huán)境的考驗,就必須能承受一定數(shù)量的塵埃、水汽和油污。
寶德8635位置調(diào)節(jié)儀
How accurate is the valve locator? In an ideal world, the number one input signal, the regulator of the internal parts (including the valve core and valve stem, seat, etc.) should be every time to accuray locate the position of the required, regardless of the direction of travel or how much the internal parts of the load regulator.what is the air quality requirement of valve locator? Because only a handful of air supply device can provide full ISA standards (standard on the quality of instrument air: ISA standard F7.3) by air, therefore, for air or electrical and gas) valve positioner, if we are to withstand the test of reality, must be able to withstand a certain amount of dust, vapor and oil.
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