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 對于結構簡單的普通單向閥，主要應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、穩壓，在溢去系統多余的油液的同時使泵的供油壓力得到調整并保持基本穩定。控制液壓系統在達到調定壓力時保持恒定狀態。用于過載保護的溢流閥稱為安全閥。當系統發生故障，壓力升高到可能造成破壞的限定值時，閥口會打開而溢流，以保證系統的安全。
2.類型
直動型溢流閥—用于低壓場合。
特點：反應靈敏，結構簡單、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，大調節壓力為2．5MPa。
先導型溢流閥---用于中、高壓場合。
特點:先導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;閥的進口壓力由兩次比較得到，壓力值主要由先導閥調壓彈簧的預壓縮量確定，主閥彈簧起復位作用。
通過先導閥的流量很小，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，可以改善閥的調節性能。

力士樂壓力控制閥/德國REXROTH東莞代理

力士樂應用行業
壓路機、混泥土攪拌車、機床、汽車、紡織工業、輕工業、鋼廠、采礦業、油田、石化、風能、通用自動化、水利工程、海事工程、冶金、塑料機械、通用機械、壓機、鉆孔機、叉車、推土機、起重機、裝載機、混泥土泵、挖掘機、印刷與紙張處理、食品包裝、木工機械、橡膠、電子和半導體。
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行機構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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