Parker先導(dǎo)式比例換向閥D41FH系列上海派克

Parker派克D41FH系列先導(dǎo)式比例換向閥是管路流體輸送系統(tǒng)中控制部件,，它是用來改變通路斷面和介質(zhì)流動(dòng)方向，具有導(dǎo)流,、截止、調(diào)節(jié)、節(jié)流,、止回、分流或溢流卸壓等功能,。 用于流體控制的換向閥,，從zui簡單的截止閥到極為復(fù)雜的自控系統(tǒng)中所用的各種換向閥，其品種和規(guī)格繁多,， 換向閥的公稱通徑從極微小的儀表閥大至通徑達(dá)10m的工業(yè)管路用閥,。換向閥可用于控制水、蒸汽,、油品,、氣體、泥漿,、各種腐蝕性介質(zhì),、 液態(tài)金屬和放射性流體等各種類型流體的流動(dòng) ，換向閥的工作壓力可從0.0013MPa到1000MPa 的超高壓,，工作溫度從-269℃的超低溫到1430℃的高溫.
Parker派克D41FH系列先導(dǎo)式比例換向閥到極為復(fù)雜的自控系統(tǒng)中所用的各種換向閥,，其品種和規(guī)格繁多， 換向閥的公稱通徑從極微小的儀表閥大至通徑達(dá)10m的工業(yè)管路用閥,。換向閥可用于控制水,、蒸汽、油品,、氣體,、泥漿、各種腐蝕性介質(zhì),、 液態(tài)金屬和放射性流體等各種類型流體的流動(dòng) ,，換向閥的工作壓力可從0.0013MPa到1000MPa 的超高壓，工作溫度從-269℃的超低溫到1430℃的高溫。換向閥的控制可采用多種傳動(dòng)方式,， 如手動(dòng),、電動(dòng)、液動(dòng),、氣動(dòng),、蝸輪、電磁動(dòng),、電磁--液動(dòng),、電--液動(dòng)、氣--液動(dòng),、正齒輪,、傘齒輪驅(qū)動(dòng)等；可以在壓力,、溫度或其它形式傳感信號(hào)的作用下,， 按預(yù)定的要求動(dòng)作，或者不依賴傳感信號(hào)而進(jìn)行簡單的開啟或關(guān)閉,，換向閥依靠驅(qū)動(dòng)或自動(dòng)機(jī)構(gòu)使啟閉件作升降,、滑移、旋擺或回轉(zhuǎn)運(yùn)動(dòng),， 從而改變其流道面積的大小以實(shí)現(xiàn)其控制功能,。
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Parker先導(dǎo)式比例換向閥D41FH系列上海派克

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