Z2S10-4-3X/-力士樂(lè)Rexroth單向節(jié)流閥

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對(duì)節(jié)流閥的性能要求是：
·流量調(diào)節(jié)范圍大,流量一壓差變化平滑；
·內(nèi)泄漏量小,若有外泄漏油口,外泄漏量也要小；
·調(diào)節(jié)力矩小,動(dòng)作靈敏。
節(jié)流閥(throttle valve)的外形結(jié)構(gòu)與截止閥并無(wú)區(qū)別,只是它們啟閉件的形狀有所不同。節(jié)流閥的啟閉件大多為圓錐流線型,通過(guò)它改變通道截面積而達(dá)到調(diào)節(jié)流量和壓力。節(jié)流閥供在壓力降*的情況下作降低介質(zhì)壓力之用。
介質(zhì)在節(jié)流閥瓣和閥座之間流速很大,以致使這些零件表面很快損壞－即所謂汽蝕現(xiàn)象。為了盡量減少汽蝕影響,閥瓣采用耐汽蝕材料（合金鋼制造）并制成*角為140～180的流線型圓錐體,這還能使閥瓣能有較大的開(kāi)啟高度,一般不*在小縫隙下節(jié)流。

Z2S10-4-3X/-力士樂(lè)Rexroth單向節(jié)流閥

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