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    • 當前位置:上海韋米機電設備有限公司 > 產品中心 > 力士樂REXROTH液壓元件 > 力士樂電磁溢流閥DBW20A2-52/315-6EG24N9K4

      力士樂電磁溢流閥DBW20A2-52/315-6EG24N9K4

      產品型號: DBW20A2-52/315-6EG24N9K4
      品  牌: 力士樂REXROTH
      • 1-4 臺
        ¥3000.00
      • 5-9 臺
        ¥2950.00
      • ≧10 臺
        ¥2900.00
      所 在 地: 上海浦東新區
      更新日期: 2025-11-12
      詳細信息
       品牌:力士樂REXROTH  型號:DBW20A2-52/315-6EG24N9K4  加工定制:否  
       閥瓣開啟高度:全啟式安全閥  結構形式:先導式  連接形式:法蘭  
       材質:鑄鐵  公稱通徑:10 mm 適用介質:油品  
       標準:德標  流動方向:換向  零部件及配件:閥體  
       外形:中型  壓力環境:常壓  類型:先導式  
       閥體結構:封閉式  壓力環境:常壓  類型:先導式  
      力士樂電磁溢流閥DBW20A2-52/315-6EG24N9K4,上海韋米機電設備有限公司主營產品之一,銷售熱線: ;聯系人:雷青;業務QQ:---;手機微信: ;郵箱 ;傳真 ;原廠直銷,質量保障,現貨庫存,價格優惠!

      1)電磁溢流閥原理上,一般是由先導式溢流閥加上一個2位2通電磁閥組成。
      2)這個電磁閥實際上由兩部分組成:2位2通的液壓閥部分,加上一個電磁鐵。2位2通閥是開通,還是關閉,是由電磁鐵推動閥芯運動來實現的。有的閥電磁鐵通電時打開,有的閥電磁鐵斷電時打開,蘿目青菜個人各愛(根據系統要求選擇)。也就是說,電磁閥這里有一條通路一頭與先導溢流閥的某個部位相連,另一頭通過油管與油箱相連。通過操作電磁鐵可以讓先導溢流閥的某個部位或者與油箱相通,或者不與油箱相通。
       

      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。
      與三節同心結構相比,二節同心結構的特點是: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,主閥開啟高度小;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,便于組織批量生產。
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      力士樂電磁溢流閥DBW20A2-52/315-6EG24N9K4

      穩壓作用:溢流閥串聯在回油路上,溢流閥產生背壓,運動部件平穩性增加。
      系統卸荷作用:在溢流閥的遙控口串接溢小流量的電磁閥,當電磁鐵通電時,溢流閥的遙控口通油箱,此時液壓泵卸荷。溢流閥此時作為卸荷閥使用。
      安全保護作用:系統正常工作時,閥門關閉。只有負載超過規定的極限(系統壓力超過調定壓力)時開啟溢流,進行過載保護,使系統壓力不再增加(通常使溢流閥的調定壓力比系統*高工作壓力高10%~20%)。
      實際應用中一般有:作卸荷閥用,作遠程調壓閥,作高低壓多級控制閥,作順序閥,用于產生背壓(串在回油路上)。
      比例溢流閥的壓力等級要與系統所需要的壓力相適應,以確保較好的分辨率。 系統需要調節的*高壓力是180bar,則比例溢流閥的壓力等級應該是210左右 .不應該是315bar等太高的等級。原則是盡量使比例溢流閥的*高控制壓力略大于系統所需要的*高壓力。
        先使系統安全閥全開,比例溢流閥輸入電流為零,再起泵。然后保持安全閥為零,給比例閥輸入*大電流 .慢慢調節手調安全閥的手柄,使系統壓力逐步上升,將比例閥輸入電流降下來,直到系統需要的*高壓力,記錄對應當輸入電流數值。這就是系統要求的*高壓力說對應的電流,如果用計算機控制或用信號發生器輸入,將這個電流*為輸入電流的限制值。
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