力士樂(lè)溢流閥ZDB6VP1-42/200，德國(guó)力士樂(lè)REXROTH全新原裝進(jìn)口品牌備件，質(zhì)量保證，現(xiàn)貨庫(kù)存特價(jià)銷(xiāo)售；
溢流閥一般有兩種結(jié)構(gòu)：1、直動(dòng)型溢流閥 。2、先導(dǎo)式溢流閥。
對(duì)溢流閥的主要要求：調(diào)壓范圍大，調(diào)壓偏差小，壓力振擺小，動(dòng)作靈敏，過(guò)載能力大，噪聲小。
先導(dǎo)型溢流閥的導(dǎo)閥部分結(jié)構(gòu)尺寸較小，調(diào)壓彈簧不必很強(qiáng)，因此壓力調(diào)整比較輕便。但因先導(dǎo)型溢流閥要在先導(dǎo)閥和主閥都動(dòng)作后才能起控制作用，因此反應(yīng)不如直動(dòng)型溢流閥靈敏。
與三節(jié)同心結(jié)構(gòu)相比，二節(jié)同心結(jié)構(gòu)的特點(diǎn)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(jié)構(gòu)簡(jiǎn)單，加工和裝配方便。②過(guò)流面積大，在相同流量的情況下，主閥開(kāi)啟高度��；或者在相同開(kāi)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，便于組織批量生產(chǎn)。
上海韋米機(jī)電設(shè)備有限公司
雷 青（Mr） 手機(jī)Cel:13524123009（微信號(hào)）
電話Tel：021-61116913 傳真Fax：021-51334670
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力士樂(lè)溢流閥ZDB6VP1-42/200
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力士樂(lè)溢流閥ZDB6VP1-42/200
先導(dǎo)溢流閥的主閥上腔壓力，是由先導(dǎo)閥加于控制的。如果先導(dǎo)閥正常工作，即主閥上腔有先導(dǎo)閥規(guī)定的壓力，則整個(gè)溢流閥就會(huì)在系統(tǒng)壓力到達(dá)調(diào)定壓力時(shí)其主閥口打開(kāi)一定的開(kāi)度，一方面能將系統(tǒng)多余流量流回油箱，另一方面又能維持系統(tǒng)的壓力為先導(dǎo)閥的調(diào)定值�？梢�(jiàn)，先導(dǎo)閥主要管壓力，主閥服從先導(dǎo)閥的領(lǐng)導(dǎo)，在先導(dǎo)閥動(dòng)作時(shí)將主閥口開(kāi)到合適大小，正好將多余流量流出去，又不影響系統(tǒng)壓力。
力士樂(lè)溢流閥ZDB6VP1-42/200
力士樂(lè)REXROTH溢流閥，先導(dǎo)式
力士樂(lè)REXROTH先導(dǎo)式溢流閥ZDB 6, Z2DB 6
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力士樂(lè)溢流閥ZDB6VP1-42/200