R900535588 PV7-1X/40-71RE37MC0-08
順序閥的基本功能是控制多個執(zhí)行元件的順序動作,根據(jù)其功能的不同分別稱為順序閥、
順序閥的性能與溢流閥基本相同,但由于功能的不同,對順序閥還有其特殊的要求: (
2)為了順序動作的準(zhǔn)確性,要求閥關(guān)閉時內(nèi)泄漏量??;
3)對于單向順序閥,要求反向壓力損失及正向壓力損失值均應(yīng)較小。
使用順序時應(yīng)注意以下問題:
<1>順序閥通常為外泄方式,故必須將泄油口接至油箱,且泄油路背壓不能過高,以免影
<2>應(yīng)根據(jù)液壓系統(tǒng)的具體要求選用順序閥的控制方式,對于外控式順序閥應(yīng)提供適當(dāng)?shù)?/div>
<3>啟閉特性太差的順序閥,通過流量較大時會使一次壓力過高,導(dǎo)致系統(tǒng)效率降低;
<5>順序閥的通過流量不宜小于額定流量過多,否則將產(chǎn)生振動或其他不穩(wěn)定現(xiàn)象。
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