?液壓油長期暴露在環境中，會被各種化學物質污染，因此，液壓件必須具有良好且足夠穩定的耐腐蝕性能，以滿足液壓系統的使用要求液壓元件是油液在外界空氣和水兩種介質的作用下，被油液中的化學物質侵蝕，產生腐蝕產物的器件。
對于腐蝕嚴重部位，則必須更換磨損嚴重的零部件，甚至完全報廢液壓件表面必須有足夠的耐磨耐腐蝕性；對于摩擦表面，必須有足夠的耐磨性；對于腐蝕表面上，必須有足夠的耐蝕性如選用的材料具有耐腐蝕性，在選擇耐腐蝕的材料時，必須同時考慮對材料的化學作用。
如果材料本身有了一定性能，那么在進行系統設計時，需要考慮對部件進行適當的強度設計一般系統中使用多個部件時，系統設計會有所變化，如果設計強度不合適將會引起部件損壞或失效，因此在選擇部件時還應考慮部件是否易于維修或更換。
液壓元件工作時，由于受力狀態和空間位置變化所產生的電磁特性，又稱為電性能，液壓件的電性能主要包括以下幾個方面：(1)輸出電流：液壓元件以液壓動力為能量來源，它將液壓功率傳遞給負載以供動力機械的使用電抗器的電壓隨負載的變化，電抗變化的頻率隨負載率變化。
因此，在選擇電抗器時，應注意觀察液壓管路是否安裝在負載面上；(2)工作電壓：是指工作介質（油和水等）的電壓由于液壓元件在工作時會產生較大的電阻率，所以液壓元件在工作狀態下承受較大的工作電壓是必不可少的電抗器在工程上主要用來作電機的起動退磁裝置。
通常在選用電抗器時應注意以下幾點:(1)不能使電抗器發生過載而損壞;(2)應使電抗器能承受較高工作壓力和持續工作時間;(3)工作電壓應低于工作電流 液壓件的高效率體現在使用壽命，穩定性和節能根據不同性能的液壓件，使用壽命分別在3~5年,10~15年,20年和30年。
液壓件具有較高的可靠性，而降低摩擦阻力可以提高工作效率從表面上看，高效率意味著提高了工作效率因此，高效率是液壓件使用壽命的關鍵但由于液壓件是非標產品，其質量要求很高因此，為了提高液壓件的質量，應對其進行分析、試驗。
并根據實際應用條件設計液壓件，確保高效率 90R075-KA-5-BB-80-L-4-S1-D-03-GBA-26-26-24 90R075KA5BB80L4S1D03GBA262624 90-R-075-KA-5-BB-80-L-4-S1-D-03-GBA-26-26-24 90R075KA5BB80L4S1D03GBA262624 90R075-KA-5-BB-80-P-3-C6-C-03-GBA-42-42-24 90R075KA5BB80P3C6C03GBA424224 90-R-075-KA-5-BB-80-P-3-C6-C-03-GBA-42-42-24 90R075KA5BB80P3C6C03GBA424224 90R075-KA-5-BB-80-P-3-C7-E-03-GBA-42-35-22 90R075KA5BB80P3C7E03GBA423522 90-R-075-KA-5-BB-80-P-3-C7-E-03-GBA-42-35-22 90R075KA5BB80P3C7E03GBA423522 90R075-KA-5-BB-80-P-3-C7-E-03-GBA-42-42-26 90R075KA5BB80P3C7E03GBA424226 90-R-075-KA-5-BB-80-P-3-C7-E-03-GBA-42-42-26 90R075KA5BB80P3C7E03GBA424226 90R075-KA-5-BB-80-P-3-C7-E-03-GBA-45-35-22 90R075KA5BB80P3C7E03GBA453522 90-R-075-KA-5-BB-80-P-3-C7-E-03-GBA-45-35-22 90R075KA5BB80P3C7E03GBA453522 90R075-KA-5-BB-80-P-3-S1-E-04-GBA-42-42-24 90R075KA5BB80P3S1E04GBA424224 90-R-075-KA-5-BB-80-P-3-S1-E-04-GBA-42-42-24 90R075KA5BB80P3S1E04GBA424224 90R075-KA-5-BB-80-P-4-C6-D-03-GBA-42-42-24 90R075KA5BB80P4C6D03GBA424224 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