?流速高需要較大功率；由于液壓系統(tǒng)的阻力主要由液壓油提供，因此流速大意味著負(fù)載大且要求動(dòng)力大而流量較小就要求消耗動(dòng)力較小或無(wú)動(dòng)力對(duì)于流速比較小和功率比較?。ㄍǔ轭~定功率40%-60%)以及沒(méi)有動(dòng)力的場(chǎng)合，可以考慮使用低速（≤2r/min)或高速(>6r/min)。
而對(duì)于流速較大或沒(méi)有動(dòng)力又比較大或有功率需求的場(chǎng)合，可以考慮選用高速(>6r/min)的液壓泵也可以根據(jù)使用需求選用小流量(20m/min)的液壓泵同時(shí)，流量較大和功率較大還要求機(jī)械磨損小、磨損量小、結(jié)構(gòu)簡(jiǎn)單、易于制造和維修等特性參數(shù)符合要求。
液壓泵是一種將液體輸送至工作地點(diǎn)的機(jī)械其作用是：輸入動(dòng)力，使液壓油從液體泵的進(jìn)油口流入液體泵主要用于城市建筑、機(jī)械、化工、造紙、輕工、紡織、食品等行業(yè)按輸送介質(zhì)分（按其驅(qū)動(dòng)方式分）油泵、氣體輸送泵、風(fēng)冷式高壓泵、平衡油泵、真空潤(rùn)滑油泵、伺服泵、精密變量壓力油泵、數(shù)控精密變量油泵、電動(dòng)精密變量機(jī)油泵、高精密流量泵、液流變矩機(jī)、行星齒輪油泵、行星軸承油泵、螺桿油泵、圓錐盤油泵、內(nèi)轉(zhuǎn)子活塞泵、內(nèi)轉(zhuǎn)子圓錐盤油、直齒活塞油、活塞油泵、活塞式油泵、錐面活塞油泵、活塞式雙組對(duì)活塞和凸輪軸。
活塞式液位泵有幾種不同型號(hào)和不同結(jié)構(gòu)形式：帶平衡油閥（帶平衡止回閥）、帶滑動(dòng)止回閥）、油冷式往復(fù)止回閥；帶內(nèi)旋轉(zhuǎn)止回閥等等 油液進(jìn)入泵體之后沒(méi)有通過(guò)活塞或泵蓋，所以在做動(dòng)作時(shí)，必須與工作需要相匹配在不匹配的情況下，壓力將不能傳遞，因此，油液將發(fā)生乳化，液泵內(nèi)的金屬將磨損。
當(dāng)管路上的金屬部件或連接件突然斷裂時(shí)，會(huì)造成泵芯壓力急劇下降的現(xiàn)象如果液壓油壓力持續(xù)下降到預(yù)定工作溫度時(shí)，就會(huì)導(dǎo)致液壓泵燒毀；如果壓力突然下降至預(yù)設(shè)工作溫度時(shí)，壓力將不能傳遞給油液此時(shí)油液將成為乳化油由于壓力表被損壞速度太快使液壓泵無(wú)法運(yùn)轉(zhuǎn)或損壞程度大。
在使用液壓泵的時(shí)候一定要注意安全問(wèn)題才能讓機(jī)器保持穩(wěn)定 90R100-KA-1-NN-60-S-3-C7-E-03-GBA-42-42-24 90R100KA1NN60S3C7E03GBA424224 90-R-100-KA-1-NN-60-S-3-C7-E-03-GBA-42-42-24 90R100KA1NN60S3C7E03GBA424224 90R100-KA-1-NN-60-S-3-C7-F-00-GBA-38-38-24 90R100KA1NN60S3C7F00GBA383824 90-R-100-KA-1-NN-60-S-3-C7-F-00-GBA-38-38-24 90R100KA1NN60S3C7F00GBA383824 90-R-100-KA-1-NN-60-S-3-C7-F-03-GBA-35-35-20 90R100KA1NN60S3C7F03GBA353520 90-R-100-KA-1-NN-60-S-3-F1-E-00-GBA-23-23-24 90R100KA1NN60S3F1E00GBA232324 90R100-KA-1-NN-60-S-3-F1-E-03-GBA-42-42-24 90R100KA1NN60S3F1E03GBA424224 90-R-100-KA-1-NN-60-S-3-F1-E-03-GBA-42-42-24 90R100KA1NN60S3F1E03GBA424224 90-R-100-KA-1-NN-60-S-3-F1-F-00-GBA-42-42-20 90R100KA1NN60S3F1F00GBA424220 90-R-100-KA-1-NN-60-S-3-F1-F-03-GBA-14-35-20 90R100KA1NN60S3F1F03GBA143520 90-R-100-KA-1-NN-60-S-3-S1-D-03-GBA-35-35-24 90R100KA1NN60S3S1D03GBA353524 90R100-KA-1-NN-60-S-3-S1-E-03-GBA-35-35-24 90R100KA1NN60S3S1E03GBA353524 90-R-100-KA-1-NN-60-S-3-S1-E-03-GBA-35-35-24 90R100KA1NN60S3S1E03GBA353524 90-R-100-KA-1-NN-60-S-3-S1-E-03-GBA-42-42-24 90R100KA1NN60S3S1E03GBA424224 90-R-100-KA-1-NN-60-S-3-S1-F-00-GBA-35-35-24 90R100KA1NN60S3S1F00GBA353524 90-R-100-KA-1-NN-60-S-3-T2-E-00-GBA-23-23-24 90R100KA1NN60S3T2E00GBA232324 90R100-KA-1-NN-60-S-3-T2-E-03-FAC-42-42-26 90R100KA1NN60S3T2E03FAC424226 90-R-100-KA-1-NN-60-S-3-T2-E-03-FAC-42-42-26 90R100KA1NN60S3T2E03FAC424226 90R100-KA-1-NN-60-S-3-T2-F-03-FAC-42-42-24 90R100KA1NN60S3T2F03FAC424224 90-R-100-KA-1-NN-60-S-3-T2-F-03-FAC-42-42-24 90R100KA1NN60S3T2F03FAC424224 90-R-100-KA-1-NN-60-S-4-F1-E-03-GBA-35-35-24 90R100KA1NN60S4F1E03GBA353524 90-R-100-KA-1-NN-60-S-4-F1-F-03-GBA-14-35-20 90R100KA1NN60S4F1F03GBA143520 90-R-100-KA-1-NN-60-S-4-F1-F-03-GBA-23-23-24 90R100KA1NN60S4F1F03GBA232324 90-R-100-KA-1-NN-60-S-4-F1-F-05-GBA-35-35-24 90R100KA1NN60S4F1F05GBA353524 90-R-100-KA-1-NN-60-S-4-S1-E-00-GBA-14-14-24 90R100KA1NN60S4S1E00GBA141424 90-R-100-KA-1-NN-60-S-4-S1-F-03-GBA-42-42-24 90R100KA1NN60S4S1F03GBA424224 90-R-100-KA-1-NN-61-L-4-S1-E-03-GBA-35-35-24 90R100KA1NN61L4S1E03GBA353524 。
