力士樂壓力控制閥/德國REXROTH東莞代理

REXROTH博世力士樂控制閥的選用 對于結(jié)構(gòu)簡單的普通單向閥，主要應(yīng)注意其開啟壓力的合理選用：較低的開啟壓力，可以減小液流經(jīng)過單向閥的阻力損失；但是，對于作背壓閥使用的單向閥，其開啟壓力較高，以保證足夠的背壓力。

壓力控制閥分類編輯
溢流閥
1.作用
溢流、穩(wěn)壓，在溢去系統(tǒng)多余的油液的同時使泵的供油壓力得到調(diào)整并保持基本穩(wěn)定。控制液壓系統(tǒng)在達(dá)到調(diào)定壓力時保持恒定狀態(tài)。用于過載保護(hù)的溢流閥稱為安全閥。當(dāng)系統(tǒng)發(fā)生故障，壓力升高到可能造成破壞的限定值時，閥口會打開而溢流，以保證系統(tǒng)的安全。
2.類型
直動型溢流閥—用于低壓場合。
特點(diǎn)：反應(yīng)靈敏，結(jié)構(gòu)簡單、彈簧剛度大、沖擊、噪聲和壓力波動大，適用于低壓、小流量的場合，大調(diào)節(jié)壓力為2．5MPa。
先導(dǎo)型溢流閥---用于中、高壓場合。
特點(diǎn):先導(dǎo)閥和主閥閥芯分別處于受力平衡，其閥口都滿足壓力流量方程;閥的進(jìn)口壓力由兩次比較得到，壓力值主要由先導(dǎo)閥調(diào)壓彈簧的預(yù)壓縮量確定，主閥彈簧起復(fù)位作用。
通過先導(dǎo)閥的流量很小，是主閥額定流量的1%，尺寸很小，即使是高壓閥，其彈簧剛度也不大，可以改善閥的調(diào)節(jié)性能。

力士樂壓力控制閥/德國REXROTH東莞代理

力士樂應(yīng)用行業(yè)
壓路機(jī)、混泥土攪拌車、機(jī)床、汽車、紡織工業(yè)、輕工業(yè)、鋼廠、采礦業(yè)、油田、石化、風(fēng)能、通用自動化、水利工程、海事工程、冶金、塑料機(jī)械、通用機(jī)械、壓機(jī)、鉆孔機(jī)、叉車、推土機(jī)、起重機(jī)、裝載機(jī)、混泥土泵、挖掘機(jī)、印刷與紙張?zhí)幚怼⑹称钒b、木工機(jī)械、橡膠、電子和半導(dǎo)體。
REXROTH力士樂比例換向閥屬于比例閥的一種,用來控制流量和流向。力士樂REXROTH控制...壓力控制閥（pressure control valve ）是制壓力的閥的總稱。在平常中我們都把控制壓力的閥的統(tǒng)稱為壓力控制閥。壓力控制閥有時候也簡稱為壓力閥，主要是用來滿足對執(zhí)行機(jī)構(gòu)提出的力或力矩的要求。包括安全閥、溢流閥、減壓閥和順序閥。

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