供應(yīng)力士樂比例溢流閥DBE6-11/315G24K4M第一是主閥體（2）阻尼器堵塞，油壓傳遞不到主閥上腔和導(dǎo)閥前腔，導(dǎo)閥就失去對主閥壓力的調(diào)節(jié)作用。因主閥上腔無油壓力，彈簧力又很小，所以主閥變成了一個(gè)彈簧力很小的直動型溢流閥，在進(jìn)油腔壓力很低的情況下，主閥就打開溢流，系統(tǒng)就建立不起壓力。
壓力達(dá)不到額定值的原因，是調(diào)壓彈簧變形或選用錯(cuò)誤，調(diào)壓彈簧壓縮行程不夠，閥的內(nèi)泄漏過大，或?qū)чy部分錐閥過度磨損等。

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