有相當一部分用戶因力士樂原配電動機損壞，就隨意配上另一臺電動機帶動，結果造成了力士樂葉片泵流量少、水泵轉速過低、揚程低抽不上水后果。 力士樂葉片泵傳動帶磨損。有許多大型離水泵采用帶傳,因長期使用,傳動帶磨損而松也,出現打滑現象，降低了水泵轉速。 REXROTH葉片泵安裝不當。兩帶輪中心距太小或兩軸不太平行，傳動帶緊邊安裝到上面，致使包角太小，兩帶輪直徑計算差錯以及聯軸傳動水泵兩軸偏心距較大等，均會造成水泵轉速變化。 REXROTH葉片泵本身機械故障。葉輪與泵軸緊固螺母松脫或泵軸變形彎曲，造成葉輪多移，直接與泵體摩擦，或軸承損壞，都有可能降低水泵轉速。 REXROTH葉片泵依靠旋轉葉輪對液體的作用把原動機的機械能傳遞給液體。由于離心泵的作用液體從葉輪進口流向出口的過程中，其速度能和壓力能都得到增加，被葉輪排出的液體經過壓出室 ，大部分速度能轉換成壓力能，然后沿排出管路輸送出去。 上海維特銳在德國與REXROTH合作，可長期穩定供應力士樂葉片泵，力士樂電磁閥，REXROTH導軌，力士樂柱塞泵等產品
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