DBDS10K1X/200溢流閥現(xiàn)貨

DBDS10K1X/200溢流閥現(xiàn)貨 德國原裝博世力士樂REXROTH溢流閥 電磁溢流閥 原裝現(xiàn)貨

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DBDS10K1X/200溢流閥現(xiàn)貨

性能

(1)調壓范圍：它是指減壓閥輸出壓力P2的可調范圍，在此范圍內要求達到規(guī)定的精度。調壓范圍主要與調壓彈簧的剛度有關。

(2)壓力特性：它是指流量g為定值時，因輸入壓力波動而引起輸出壓力波動的特性。輸出壓力波動越小，減壓閥的特性越好。輸出壓力必須低于輸入壓力—定值才基本上不隨輸入壓力變化而變化。

(3)流量特性：它是指輸入壓力—定時，輸出壓力隨輸出流量g的變化而變化的持性。當流量g發(fā)生變化時，輸出壓力的變化越小越好。一般輸出壓力越低，它隨輸出流量的變化波動就越小

減壓閥

減壓閥是利用液流流過縫隙產生壓力損失，使其出口壓力低于進口壓力的壓力控制閥。

按調節(jié)要求不同，有定值減壓閥，定差減壓閥，定比減壓閥。

定值減壓閥的結構原理

減壓閥起減壓作用且保證出口壓力為定值的條件是:當出口壓力大于減壓閥的調定壓力，使其先導閥開啟。

直動式減壓閥

減壓閥的功用與特點：

減壓閥用在液壓系統(tǒng)中獲得壓力低于系統(tǒng)壓力的二次油路上

與溢流閥比較:

減壓閥是出口壓力控制，保證出口壓力為定值;溢流閥是進口壓力控制，保證進口壓力為定值。

減壓閥閥口常開;

溢流閥閥口常閉。

減壓閥有單獨的泄油口;溢流閥彈簧腔的泄漏油經閥體

內流道內泄至出口。

減壓閥與溢流閥-樣有遙控口。

溢流閥一般有兩種結構：1、直動型溢流閥 。2、先導式溢流閥。

對溢流閥的主要要求：調壓范圍大，調壓偏差小，壓力振擺小，動作靈敏，過載能力大，噪聲小。

先導型溢流閥的導閥部分結構尺寸較小，調壓彈簧不必很強，因此壓力調整比較輕便。但因先導型溢流閥要在先導閥和主閥都動作后才能起控制作用，因此反應不如直動型溢流閥靈敏。

與三節(jié)同心結構相比，二節(jié)同心結構的特點是：①主閥芯僅與閥套和主閥座有同心度要求，免去了與閥蓋的配合，故結構簡單，加工和裝配方便。②過流面積大，在相同流量的情況下，主閥開啟高度��；或者在相同開啟高度的情況下，其通流能力大，因此，可做得體積小、重量輕。③主閥芯與閥套可以通用化，便于批量生產。

DBDS10K1X/200溢流閥現(xiàn)貨

DBD型泄壓閥為直動式座閥。它們用于限制系統(tǒng)壓力。

閥門主要由套筒（1），彈簧（2），帶阻尼活塞的提升閥芯（3）（壓力等級25 bar…400 bar）或球（4）（壓力等級630 bar）和調節(jié)類型（5）組成。系統(tǒng)壓力可以通過調節(jié)類型（5）進行無級調節(jié)。彈簧（2）將提升閥芯（3）或球（4）推到閥座上。通道P已連接到系統(tǒng)。系統(tǒng)中存在的壓力作用在提升閥表面（或球）上。如果通道P中的壓力超過彈簧（2）上設定的值，則提升閥芯（3）或球（4）靠著彈簧（2）打開�，F(xiàn)在，來自通道P的液壓流體流入通道T。提動閥芯（3）的行程受到壓紋（6）的限制。

為了在整個壓力范圍內實現(xiàn)良好的壓力調節(jié)，已將整個壓力范圍分為7個壓力等級。一個壓力額定值對應于可以通過該彈簧設定的較大工作壓力的某一彈簧。

注意事項：

調整類型（5）的構造使其不會丟失。通過萬向支架安裝，在完全卸載的情況下，調節(jié)元件在調節(jié)類型（5）中保持松動（可移動）。

額定壓力為“ 25”：如果盡管完全卸載了調節(jié)類型，但仍未達到較小壓力，則由于彈簧和/或復位力較低，必須將調節(jié)元件“拉回”到擋塊。

為了進行壓力調節(jié)/增加，可以再次擰入調節(jié)元件。

鍵入DBDS..K1X /…

版本壓力等級25…400 bar（提升座閥）

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換向閥主要由閥體、密封組件、凸輪、閥桿、手柄和閥蓋等零部件組成(圖1)。閥門由手柄驅動，通過手柄帶動閥桿與凸輪旋轉，凸輪具有定位驅動與鎖定密封組件的開啟與關閉功能。手柄逆時針旋轉，兩組密封組件分別在凸輪的作用下關閉下端的兩個通道，上端的兩個通道分別與管道裝置的進口相通。反之，上端的兩個通道關閉，下端兩個通道與管道裝置的進口相通，實現(xiàn)了不停車換向。