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武穴黎翔機(jī)電設(shè)備有限公司：18934630908??(微信同號(hào)）

比例多用于開(kāi)環(huán)控制；其次比例閥類(lèi)型要多，有比例壓力、流量控制閥等，控制比伺服藥?kù)`活一些。從他們內(nèi)部結(jié)構(gòu)看，伺服閥多是零遮蓋，比例閥則有一定的死區(qū)，控制精度要低，向應(yīng)要慢。但從發(fā)展趨勢(shì)看，特別在比例方向流量控制閥和伺服閥方面，兩者性能差別逐漸在縮小，另外比例閥的成本比伺服閥要低許多，抗污染能力也強(qiáng)！

伺服閥與比例閥的區(qū)別

　　伺服閥與比例閥之間的差別并沒(méi)有嚴(yán)格的規(guī)定，因?yàn)楸壤y的性能越來(lái)越好，逐漸向伺服閥靠近，所以近些年出現(xiàn)了比例伺服閥。?

　　非要說(shuō)差別，主要體現(xiàn)在一下幾點(diǎn)：?

　　1.伺服閥中位沒(méi)有死區(qū)，比例閥有中位死區(qū)；?

　　2.伺服閥的頻響（響應(yīng)頻率）更高，可以高達(dá)200Hz左右，比例閥一般幾十Hz；?

　　3.伺服閥對(duì)液壓油液的要求更高，需要精過(guò)濾才行，否則容易堵塞，比例閥要求低一些。?

　　比例伺服閥性能介于伺服閥和比例閥之間。?

　　比例換向閥屬于比例閥的一種，用來(lái)控制流量和流向。

該閥共有10通徑、16通徑、25通徑、32通徑幾種規(guī)格。應(yīng)用于通過(guò)調(diào)節(jié)斜坡信號(hào)可使閥芯柔和換向，以此來(lái)減小液壓和機(jī)械沖擊，通過(guò)電氣方式調(diào)節(jié)流量/速度可實(shí)現(xiàn)機(jī)械功能的自動(dòng)化。??

特點(diǎn)：??

泄漏量��；??

漸進(jìn)的流量特性使得流量調(diào)節(jié)靈敏；??

彈簧對(duì)中的主級(jí)；??

比例先導(dǎo)；??

安全系統(tǒng)的初始位置監(jiān)控；??

D*1FB系列帶有集成的功率放大器；??

D*1FW帶有數(shù)字式Snap-On功率放大器。

武穴黎翔機(jī)電設(shè)備有限公司：18934630908??(微信同號(hào)）

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武穴黎翔機(jī)電設(shè)備有限公司：18934630908??(微信同號(hào)）

平衡閥是一種具有數(shù)字鎖定特殊功能的調(diào)節(jié)型閥門(mén)，采用直流型閥體結(jié)構(gòu)，具有更好的等比流量特性，能夠合理地分配流量，有效地解決供熱（空調(diào)）系統(tǒng)中存在的室溫冷熱不均問(wèn)題。同時(shí)能準(zhǔn)確地調(diào)節(jié)壓降和流量，用以改善管網(wǎng)系統(tǒng)中液體流動(dòng)狀態(tài)，達(dá)到管網(wǎng)液體平衡和節(jié)約能源的目的。閥門(mén)設(shè)有開(kāi)啟度指示、開(kāi)度鎖定裝