?流量范圍是衡量液壓閥性能與可靠性的重要指標(biāo)從本質(zhì)上講，液壓閥實(shí)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(dòng)不會(huì)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(jī)時(shí)間更長(zhǎng)。
為了減少泄漏，必須通過(guò)閥門來(lái)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(lái)實(shí)現(xiàn)這一目標(biāo)同時(shí)，還要注意閥門所需的流量（而不是時(shí)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(yùn)行：液壓泵或液壓閥由齒輪驅(qū)動(dòng)，由兩個(gè)閥體組成，閥是一個(gè)單向閥，可以傳遞壓力（通過(guò)）和速度（流量）。
由執(zhí)行機(jī)構(gòu)控制閥組中的流量如果在執(zhí)行機(jī)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(méi)有外部控制信號(hào)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?yàn)樗鼈兙哂写螅ㄐ。┝髁糠峙涔δ芏也恍枰謩?dòng)控制就可以在整個(gè)過(guò)程中進(jìn)行控制閥門所需數(shù)量很小或不需要手動(dòng)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(gè)系統(tǒng)中唯一完全獨(dú)立于液壓泵或馬達(dá)來(lái)進(jìn)行壓力計(jì)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(lái)決定與之相關(guān)！例如，壓力補(bǔ)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(jì)安裝流量系統(tǒng)自動(dòng)控制閥門從而達(dá)到流量需求控制狀態(tài)的目的而且它可以在整個(gè)管路中調(diào)節(jié)！控制流量：對(duì)于液壓閥來(lái)說(shuō)具有足夠高的流量能力、可控制、連續(xù)、不受故障時(shí)間的限制（與泵）這些特點(diǎn)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(jià)格低廉且方便攜帶、容易安裝調(diào)試的控制元件。
隨著電動(dòng)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 。
