?流量范圍是衡量液壓閥性能與可靠性的重要指標從本質(zhì)上講，液壓閥實際上就是流量調(diào)節(jié)器它通常用于流量分配為了確保油路中的流動不會阻塞操作空間，或產(chǎn)生太大的壓力從而影響安全生產(chǎn)或產(chǎn)生更多的空氣并導(dǎo)致停機時間更長。
為了減少泄漏，必須通過閥門來控制油流方向和流量分布（一般分為單方向）及關(guān)閉速度或開度）來實現(xiàn)這一目標同時，還要注意閥門所需的流量（而不是時間）以及需要多少泵量才能滿足液壓系統(tǒng)的流量需求例如，壓力為50MPa（泵泵）和流量為1L/min=50psi.2液壓閥可用于低壓運行：液壓泵或液壓閥由齒輪驅(qū)動，由兩個閥體組成，閥是一個單向閥，可以傳遞壓力（通過）和速度（流量）。
由執(zhí)行機構(gòu)控制閥組中的流量如果在執(zhí)行機構(gòu)中使用閥體以獲得所需的壓力或流量（閥芯的開口),則泵可以在沒有外部控制信號的情況下關(guān)閉（該控制）或者壓力開關(guān)打開（另一種情況是關(guān)閉）這就是液壓閥具有大流量范圍和開關(guān)能力的原因之一是因為它們具有大（小）流量分配功能而且不需要手動控制就可以在整個過程中進行控制閥門所需數(shù)量很小或不需要手動調(diào)節(jié)閥門可以在泵和壓力之間自由切換并控制液路介質(zhì)流量而不僅僅是關(guān)閉流量控制系統(tǒng)是一個系統(tǒng)中唯一完全獨立于液壓泵或馬達來進行壓力計算和控制的系統(tǒng)設(shè)備.流量范圍由液壓系統(tǒng)控制單元來決定與之相關(guān)！例如，壓力補償閥可以根據(jù)油溫調(diào)節(jié)輸出壓力和流量大小而定制設(shè)計安裝流量系統(tǒng)自動控制閥門從而達到流量需求控制狀態(tài)的目的而且它可以在整個管路中調(diào)節(jié)！控制流量：對于液壓閥來說具有足夠高的流量能力、可控制、連續(xù)、不受故障時間的限制（與泵）這些特點使得它成為液壓系統(tǒng)中最基本且不可替代也最為重要而價格低廉且方便攜帶、容易安裝調(diào)試的控制元件。
隨著電動閥在液壓閥行業(yè)中得到廣泛應(yīng)用在礦山、冶金等 90L250-DD-5-NN-80-T-4-C8-J-GB-NNN-26-26-24 90L250DD5NN80T4C8JGBNNN262624 90L250-DD-5-NN-80-T-4-C8-K-G8-NNN-30-30-24 90L250DD5NN80T4C8KG8NNN303024 90-L-250-DD-5-NN-80-T-4-C8-K-G8-NNN-30-30-24 90L250DD5NN80T4C8KG8NNN303024 90L250-HF-1-BC-80-D-4-F1-L-03-NNN-38-38-28 90L250HF1BC80D4F1L03NNN383828 90-L-250-HF-1-BC-80-D-4-F1-L-03-NNN-38-38-28 90L250HF1BC80D4F1L03NNN383828 90-L-250-HF-1-DE-80-S-3-C8-K-03-NNN-35-35-24 90L250HF1DE80S3C8K03NNN353524 90-L-250-HF-1-NN-80-T-3-F1-K-03-NNN-32-32-24 90L250HF1NN80T3F1K03NNN323224 90-L-250-HF-1-NN-80-T-4-C8-J-03-NNN-17-26-20 90L250HF1NN80T4C8J03NNN172620 90L250-HF-1-NN-80-T-4-C8-J-03-NNN-17-26-20-F045 90L250HF1NN80T4C8J03NNN172620F045 90L250-HF-1-NN-80-T-4-C8-K-03-NNN-20-20-24 90L250HF1NN80T4C8K03NNN202024 90-L-250-HF-1-NN-80-T-4-C8-K-03-NNN-20-20-24 90L250HF1NN80T4C8K03NNN202024 90L250-HF-1-NN-80-T-4-F1-J-03-NNN-42-42-24 90L250HF1NN80T4F1J03NNN424224 90-L-250-HF-1-NN-80-T-4-F1-J-03-NNN-42-42-24 90L250HF1NN80T4F1J03NNN424224 90L250-HF-1-NN-80-T-4-F1-K-00-NNN-42-42-24 90L250HF1NN80T4F1K00NNN424224 90-L-250-HF-1-NN-80-T-4-F1-K-00-NNN-42-42-24 90L250HF1NN80T4F1K00NNN424224 90L250-HF-1-NN-80-T-4-F1-K-03-NNN-42-42-24 90L250HF1NN80T4F1K03NNN424224 90-L-250-HF-1-NN-80-T-4-F1-K-03-NNN-42-42-24 90L250HF1NN80T4F1K03NNN424224 90L250-HF-2-NN-80-S-3-C8-K-00-NNN-38-38-28 90L250HF2NN80S3C8K00NNN383828 90-L-250-HF-2-NN-80-S-3-C8-K-00-NNN-38-38-28 90L250HF2NN80S3C8K00NNN383828 90L250-HF-5-AB-80-S-4-C8-K-03-NNN-42-42-24 90L250HF5AB80S4C8K03NNN424224 90-L-250-HF-5-AB-80-S-4-C8-K-03-NNN-42-42-24 90L250HF5AB80S4C8K03NNN424224 90L250-HF-5-AB-80-S-4-F1-J-03-NNN-35-35-30 90L250HF5AB80S4F1J03NNN353530 90-L-250-HF-5-AB-80-S-4-F1-J-03-NNN-35-35-30 90L250HF5AB80S4F1J03NNN353530 90L250-HF-5-AB-80-S-4-F1-J-03-NNN-38-38-30 90L250HF5AB80S4F1J03NNN383830 90-L-250-HF-5-AB-80-S-4-F1-J-03-NNN-38-38-30 90L250HF5AB80S4F1J03NNN383830 90L250-HF-5-BC-80-D-4-F1-L-03-NNN-35-35-30 90L250HF5BC80D4F1L03NNN353530 90-L-250-HF-5-BC-80-D-4-F1-L-03-NNN-35-35-30 90L250HF5BC80D4F1L03NNN353530 90L250-HF-5-BC-80-S-4-C8-J-03-NNN-42-42-24 90L250HF5BC80S4C8J03NNN424224 90-L-250-HF-5-BC-80-S-4-C8-J-03-NNN-42-42-24 90L250HF5BC80S4C8J03NNN424224 90L250-HF-5-BC-80-T-4-C8-K-03-NNN-35-35-24 90L250HF5BC80T4C8K03NNN353524 90-L-250-HF-5-BC-80-T-4-C8-K-03-NNN-35-35-24 90L250HF5BC80T4C8K03NNN353524 90L250-HF-5-BC-80-T-4-F1-J-00-NNN-26-26-24 90L250HF5BC80T4F1J00NNN262624 90-L-250-HF-5-BC-80-T-4-F1-J-00-NNN-26-26-24 90L250HF5BC80T4F1J00NNN262624 90L250-HF-5-BC-80-T-4-F1-K-03-NNN-14-42-20 90L250HF5BC80T4F1K03NNN144220 90-L-250-HF-5-BC-80-T-4-F1-K-03-NNN-14-42-20 90L250HF5BC80T4F1K03NNN144220 90-L-250-HF-5-BC-80-T-4-F1-K-03-NNN-14-42-20-F056 90L250HF5BC80T4F1K03NNN144220F056 90L250-HF-5-BC-80-T-4-F1-K-04-NNN-42-42-24 90L250HF5BC80T4F1K04NNN424224 90-L-250-HF-5-BC-80-T-4-F1-K-04-NNN-42-42-24 90L250HF5BC80T4F1K04NNN424224 90L250-HF-5-CD-80-S-3-F1-J-03-NNN-23-23-24 90L250HF5CD80S3F1J03NNN232324 90-L-250-HF-5-CD-80-S-3-F1-J-03-NNN-23-23-24 90L250HF5CD80S3F1J03NNN232324 90L250-HF-5-CD-80-T-3-C8-K-03-NNN-35-35-24 90L250HF5CD80T3C8K03NNN353524 90-L-250-HF-5-CD-80-T-3-C8-K-03-NNN-35-35-24 90L250HF5CD80T3C8K03NNN353524 90L250-HF-5-EF-80-S-4-C8-J-03-NNN-23-23-24 90L250HF5EF80S4C8J03NNN232324 90-L-250-HF-5-EF-80-S-4-C8-J-03-NNN-23-23-24 90L250HF5EF80S4C8J03NNN232324 90L250-HF-5-EG-80-T-4-C8-K-03-NNN-38-38-28 90L250HF5EG80T4C8K03NNN383828 90-L-250-HF-5-EG-80-T-4-C8-K-03-NNN-38-38-28 90L250HF5EG80T4C8K03NNN383828 90L250-HF-5-NN-80-S-3-C8-K-03-NNN-35-35-24 90L250HF5NN80S3C8K03NNN353524 90-L-250-HF-5-NN-80-S-3-C8-K-03-NNN-35-35-24 90L250HF5NN80S3C8K03NNN353524 90L250-HF-5-NN-80-S-4-C8-K-03-NNN-35-35-24 90L250HF5NN80S4C8K03NNN353524 90-L-250-HF-5-NN-80-S-4-C8-K-03-NNN-35-35-24 90L250HF5NN80S4C8K03NNN353524 90L250-HF-5-NN-80-T-3-F1-J-03-NNN-42-42-24 90L250HF5NN80T3F1J03NNN424224 90-L-250-HF-5-NN-80-T-3-F1-J-03-NNN-42-42-24 90L250HF5NN80T3F1J03NNN424224 90L250-HF-5-NN-80-T-3-F1-K-03-NNN-35-35-20 90L250HF5NN80T3F1K03NNN353520 90-L-250-HF-5-NN-80-T-3-F1-K-03-NNN-35-35-20 90L250HF5NN80T3F1K03NNN353520 90L250-HF-5-NN-80-T-4-F1-K-03-NNN-14-42-20 90L250HF5NN80T4F1K03NNN144220 90-L-250-HF-5-NN-80-T-4-F1-K-03-NNN-14-42-20 90L250HF5NN80T4F1K03NNN144220 90L250-HF-5-NN-80-T-4-F1-K-03-NNN-21-21-24 90L250HF5NN80T4F1K03NNN212124 90-L-250-HF-5-NN-80-T-4-F1-K-03-NNN-21-21-24 90L250HF5NN80T4F1K03NNN212124 90L250-HF-5-NN-80-T-4-F1-K-03-NNN-35-35-24 90L250HF5NN80T4F1K03NNN353524 90-L-250-HF-5-NN-80-T-4-F1-K-03-NNN-35-35-24 90L250HF5NN80T4F1K03NNN353524 90L250-HF-5-NN-80-T-4-F1-K-03-NNN-35-35-28 90L250HF5NN80T4F1K03NNN353528 90-L-250-HF-5-NN-80-T-4-F1-K-03-NNN-35-35-28 90L250HF5NN80T4F1K03NNN353528 90L250-HF-5-NN-80-T-4-F1-K-03-NNN-42-42-24 90L250HF5NN80T4F1K03NNN424224 90-L-250-HF-5-NN-80-T-4-F1-K-03-NNN-42-42-24 90L250HF5NN80T4F1K03NNN424224 。
