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溢流閥的應用場合有哪些?

日期:2022-06-24 03:21
瀏覽次數:1617
摘要:
溢流閥的應用場合有哪些?
(1)作為安全閥防止液壓系統過載溢流閥用于防止系統過載時,此閥是常閉的。當閥前壓力不超過某一預調的極限時,此閥關閉不溢油。當閥前壓力超過此極限值時,閥立即打開,油即流回油箱或低壓回路,因而可防止液壓系統過載。
注意安全閥多用于帶變量泵的系統,其所控制的過載壓力,一般比系統的工作壓力高8%一10%。
(2)作為溢流閥使液壓系統中壓力保持恒定在定量泵系統中,與節流元件及負載并聯。此時閥是常開的,常溢油,隨著工作機構需油量的不同,閥門的溢油量時大時小,以調節及平衡進人液壓系統中的油量,使液壓系統中之壓力保持恒定。滋流閥的調整壓力,應等于系統的工作壓力。
注意由于溢流部分損耗功率,故一般只應用于小功率帶定量泵的系統中。
(3)遠程調壓將遠程調壓閥的進油口和溢流閥的遙控口(卸荷口)連接,在主濫流閥的設定壓力范圍內,實現遠程調壓。
(4)作卸荷閥用換向閥將溢流閥的遙控口(卸荷口)和油箱連接,可以使油路卸荷。
(5)高低壓多級控制用換向閥將溢流閥的遙控口(卸荷口)和幾個遠程調壓閥連接時,即可實現高低壓的多級控制。
(6)作順序閥用將溢流閥頂蓋加工出一個泄油口,而堵死主閥與頂蓋相連的軸向孔,并將主閥溢油口作為二次壓力出油口。即可作順序閥用。
(7)作卸荷閥用一般常用于泵、蓄能器系統中。泵在正常工作時,向蓄能器供油,當蓄能器中油壓達到需要壓力時,通過系統壓力,操縱滋流閥,使泵卸荷,系統就由蓄能器供油而照常工作;當蓄能器油壓下降時,溢流閥關閉,液壓泵繼續向蓄能器供油,從而保證系統的正常工作。

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本公司除了有此產品介紹以外,還有液壓元件,電力塊式制動器,油泵齒輪泵組合泵,液壓閥換向閥,電磁閥蒸汽閥等等的介紹,您要是對我司的產品有興趣,歡迎來電咨詢。謝謝!

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