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Rexroth比例伺服閥供貨源頭，力士樂比例伺服閥介紹：
電液比例伺服閥（也稱伺服比例閥，伺服比例閥叫的比較多）是伺服比例閥是比例技術(shù)與伺服技術(shù)結(jié)合的產(chǎn)物。它是將比例閥中的比例電磁鐵和伺服閥中的閥芯和閥套加工技術(shù)有機結(jié)合獲得的。與比例閥相比，它zui重要的特征就是當閥芯處于中位時，閥口是零開口的（閥口的遮蓋量幾乎為零），這意味著伺服比例閥的控制特性具有死區(qū)為零的特點，特別適用于作為閉環(huán)系統(tǒng)的控制元件。它可以按給定的輸入電壓或電流信號連續(xù)地按比例地遠距離地控制流體的方向、壓力和流量。
采用電液比例控制閥可以提高系統(tǒng)的自動化程度和精度，又簡化了系統(tǒng)。比例閥的工作雖用伺服閥可完成，但后者精度高、價格貴，對油液清潔度要求更高。比例閥主要結(jié)構(gòu)與普通閥差別不大，只是比例閥均由比例電磁鐵驅(qū)動（一種電—機械轉(zhuǎn)換器）。要注意到比例閥，伺服閥和伺服比例閥是三種不同類型的閥。
比例閥分為：比例壓力閥、比例流量閥和比例方向閥
電液比例伺服閥又叫電液伺服比例閥，來源于比例技術(shù)與伺服技術(shù)的結(jié)合，一種是采用比例電磁鐵作為電-機轉(zhuǎn)換器，將傳統(tǒng)電液比例閥的功率滑閥改進成伺服閥的閥芯、閥套結(jié)構(gòu)；一種是將電液伺服閥的滑閥的閥套結(jié)構(gòu)去掉，機械反饋改為電反饋。
Rexroth比例伺服閥供貨源頭，詢價注意事項：   
1.請?zhí)峁?列的物料編號和第二列具體型號
2.請發(fā)書面詢價函（郵件，，傳真等），不接受口頭報價。
3.詢價的商友請主動告知公司名稱和，否則不予報價。
4.如果型號不能*對上，請?zhí)峁┯⑽钠放泼?具體型號+數(shù)量。
Rexroth比例伺服閥供貨源頭，力士樂比例伺服閥常用型號：
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