?流量控制閥功用 功能:通過改變閥門的過流面積來控制輸出流量??執(zhí)行元件的運(yùn)動(dòng)速度 流量控制閥分類：節(jié)流閥、調(diào)速閥、分流閥、溫度補(bǔ)償調(diào)速閥 節(jié)流閥組成：閥體、閥芯、彈簧、調(diào)節(jié)手輪等 工作原理：調(diào)節(jié)手輪，閥芯移動(dòng)， A變化，q變化。
特點(diǎn)：∵進(jìn)口壓力油通過彈簧腔徑?向小孔和閥體上的斜孔同時(shí)作用在閥芯的上下兩端 ∴即使在高壓下，調(diào)節(jié)閥口比較方便 調(diào)速閥 ∵q=CA△pφ F變化，△p變化， A=C，q仍變化 ∴v穩(wěn)定性要求較高時(shí)，用調(diào)速閥??調(diào)速閥的組成 組成部分差減壓閥與節(jié)流閥串聯(lián) 減壓閥閥芯受力平衡方程 ∵p2A=p3A+Ft ∴p2-p3=Ft/A=kX0/A ∵k較小且不可調(diào)，工作時(shí)閥芯移動(dòng)很小。
∴Ft≈c△p=p2-p3=Ft/A≈c 故??當(dāng)A=c時(shí)，q=c，v=c 調(diào)速閥的工作原理 F↑,p3↑，減壓閥閥芯右移，x↑，減壓作用↓，p2↑，使△p=p2-p3，基本不變 反之：F↓，p3↓減壓閥閥心左移，x↓，減?壓作用↑，p2↓仍使△p=p2-p3基本不變 ∴F皆有△p=c，若A=c，則q=c 調(diào)速閥的流量特性 ∵對(duì)調(diào)速閥，當(dāng)△p最大，不減壓， 最小壓差△pmin>△p——相當(dāng)于節(jié)流閥，中低壓，=0.5MPa 最小壓差△pmin1Mpa ∵調(diào)速閥雖然解決了負(fù)載變化對(duì)流量的影響，但溫度變化?對(duì)流量仍有影響。
溫度補(bǔ)償調(diào)速閥的組成：在上述調(diào)速閥中節(jié)流閥的推桿部分加上一根溫度補(bǔ)償桿（一般用聚氯已烯塑料），且將閥口變成薄刃形（軸向縫隙式） 溫度補(bǔ)償調(diào)速閥的工作原理：利用溫度補(bǔ)償桿的熱脹冷縮補(bǔ)償流量 k↑q↑ T↑<>從而使q穩(wěn)定 L↑A↓q↓ 90L075-KA-5-AB-80-S-3-C6-D-03-GBA-20-20-20 90L075KA5AB80S3C6D03GBA202020 90-L-075-KA-5-AB-80-S-3-C6-D-03-GBA-20-20-20 90L075KA5AB80S3C6D03GBA202020 90L075-KA-5-AB-80-S-3-C6-D-03-GBA-45-45-24 90L075KA5AB80S3C6D03GBA454524 90-L-075-KA-5-AB-80-S-3-C6-D-03-GBA-45-45-24 90L075KA5AB80S3C6D03GBA454524 90-L-075-KA-5-AB-80-S-3-C6-E-03-GBA-42-42-24 90L075KA5AB80S3C6E03GBA424224 90L075-KA-5-AB-80-S-3-C7-D-03-GBA-26-26-24 90L075KA5AB80S3C7D03GBA262624 90-L-075-KA-5-AB-80-S-3-C7-D-03-GBA-26-26-24 90L075KA5AB80S3C7D03GBA262624 90L075-KA-5-AB-80-S-3-C7-D-03-GBA-42-42-24 90L075KA5AB80S3C7D03GBA424224 90-L-075-KA-5-AB-80-S-3-C7-D-03-GBA-42-42-24 90L075KA5AB80S3C7D03GBA424224 90L075-KA-5-AB-80-S-3-C7-E-03-GBA-35-35-24 90L075KA5AB80S3C7E03GBA353524 90-L-075-KA-5-AB-80-S-3-C7-E-03-GBA-35-35-24 90L075KA5AB80S3C7E03GBA353524 90L075-KA-5-AB-80-S-3-S1-D-03-GBA-42-42-24 90L075KA5AB80S3S1D03GBA424224 90-L-075-KA-5-AB-80-S-3-S1-D-03-GBA-42-42-24 90L075KA5AB80S3S1D03GBA424224 90-L-075-KA-5-AB-80-S-3-S1-E-03-GBA-35-35-24 90L075KA5AB80S3S1E03GBA353524 90L075-KA-5-AB-80-S-3-S1-E-03-GBA-42-42-24 90L075KA5AB80S3S1E03GBA424224 90-L-075-KA-5-AB-80-S-3-S1-E-03-GBA-42-42-24 90L075KA5AB80S3S1E03GBA424224 90L075-KA-5-AB-80-S-4-C7-E-03-GBA-42-42-24 90L075KA5AB80S4C7E03GBA424224 90-L-075-KA-5-AB-80-S-4-C7-E-03-GBA-42-42-24 90L075KA5AB80S4C7E03GBA424224 90L075-KA-5-AB-80-S-4-S1-E-03-GBA-42-42-24 90L075KA5AB80S4S1E03GBA424224 90-L-075-KA-5-AB-80-S-4-S1-E-03-GBA-42-42-24 90L075KA5AB80S4S1E03GBA424224 90L075-KA-5-BB-60-S-3-C6-D-03-GBA-42-42-24 90L075KA5BB60S3C6D03GBA424224 90-L-075-KA-5-BB-60-S-3-C6-D-03-GBA-42-42-24 90L075KA5BB60S3C6D03GBA424224 90L075-KA-5-BB-60-S-3-C7-D-03-GBA-14-32-24 90L075KA5BB60S3C7D03GBA143224 90-L-075-KA-5-BB-60-S-3-C7-D-03-GBA-14-32-24 90L075KA5BB60S3C7D03GBA143224 90L075-KA-5-BB-60-S-3-C7-D-03-GBA-35-35-24 90L075KA5BB60S3C7D03GBA353524 90-L-075-KA-5-BB-60-S-3-C7-D-03-GBA-35-35-24 90L075KA5BB60S3C7D03GBA353524 90L075-KA-5-BB-60-S-3-C7-D-03-GBA-45-45-24 90L075KA5BB60S3C7D03GBA454524 90-L-075-KA-5-BB-60-S-3-C7-D-03-GBA-45-45-24 90L075KA5BB60S3C7D03GBA454524 90L075-KA-5-BB-60-S-3-S1-D-00-GBA-35-35-24 90L075KA5BB60S3S1D00GBA353524 90-L-075-KA-5-BB-60-S-3-S1-D-00-GBA-35-35-24 90L075KA5BB60S3S1D00GBA353524 90-L-075-KA-5-BB-80-D-3-S1-L-05-GBA-26-26-24 90L075KA5BB80D3S1L05GBA262624 90L075-KA-5-BB-80-D-4-S1-L-05-GBA-23-23-24-F053 90L075KA5BB80D4S1L05GBA232324F053 90-L-075-KA-5-BB-80-D-4-S1-L-05-GBA-23-23-24-F053 90L075KA5BB80D4S1L05GBA232324F053 90L075-KA-5-BB-80-D-4-S1-L-05-GBA-26-26-24-F053 90L075KA5BB80D4S1L05GBA262624F053 90-L-075-KA-5-BB-80-D-4-S1-L-05-GBA-26-26-24-F053 90L075KA5BB80D4S1L05GBA262624F053 90L075-KA-5-BB-80-L-4-C7-E-03-GBA-42-42-24 90L075KA5BB80L4C7E03GBA424224 90-L-075-KA-5-BB-80-L-4-C7-E-03-GBA-42-42-24 90L075KA5BB80L4C7E03GBA424224 90L075-KA-5-BB-80-P-3-S1-D-02-GBA-35-35-24 90L075KA5BB80P3S1D02GBA353524 90-L-075-KA-5-BB-80-P-3-S1-D-02-GBA-35-35-24 90L075KA5BB80P3S1D02GBA353524 90L075-KA-5-BB-80-P-3-S1-E-02-GBA-42-42-24 90L075KA5BB80P3S1E02GBA424224 90-L-075-KA-5-BB-80-P-3-S1-E-02-GBA-42-42-24 90L075KA5BB80P3S1E02GBA424224 90L075-KA-5-BB-80-R-3-S1-D-03-GBA-17-17-20 90L075KA5BB80R3S1D03GBA171720 90-L-075-KA-5-BB-80-R-3-S1-D-03-GBA-17-17-20 90L075KA5BB80R3S1D03GBA171720 90L075-KA-5-BB-80-S-3-C6-D-03-GBA-42-42-24 90L075KA5BB80S3C6D03GBA424224 90-L-075-KA-5-BB-80-S-3-C6-D-03-GBA-42-42-24 90L075KA5BB80S3C6D03GBA424224 90L075-KA-5-BB-80-S-3-C7-E-03-GBA-29-29-24 90L075KA5BB80S3C7E03GBA292924 90-L-075-KA-5-BB-80-S-3-C7-E-03-GBA-29-29-24 90L075KA5BB80S3C7E03GBA292924 90L075-KA-5-BB-80-S-3-S1-D-02-GBA-35-35-24 90L075KA5BB80S3S1D02GBA353524 90-L-075-KA-5-BB-80-S-3-S1-D-02-GBA-35-35-24 90L075KA5BB80S3S1D02GBA353524 90L075-KA-5-BB-80-S-4-C7-D-03-GBA-35-35-24 90L075KA5BB80S4C7D03GBA353524 90-L-075-KA-5-BB-80-S-4-C7-D-03-GBA-35-35-24 90L075KA5BB80S4C7D03GBA353524 90L075-KA-5-BB-80-S-4-S1-D-02-GBA-29-29-24 90L075KA5BB80S4S1D02GBA292924 90-L-075-KA-5-BB-80-S-4-S1-D-02-GBA-29-29-24 90L075KA5BB80S4S1D02GBA292924 90L075-KA-5-BC-60-L-3-C7-D-03-GBA-38-38-24 90L075KA5BC60L3C7D03GBA383824 90-L-075-KA-5-BC-60-L-3-C7-D-03-GBA-38-38-24 90L075KA5BC60L3C7D03GBA383824 90L075-KA-5-BC-60-L-4-C7-E-03-GBA-35-35-24 90L075KA5BC60L4C7E03GBA353524 90-L-075-KA-5-BC-60-L-4-C7-E-03-GBA-35-35-24 90L075KA5BC60L4C7E03GBA353524 90-L-075-KA-5-BC-60-P-3-C7-D-00-EBC-38-38-24 90L075KA5BC60P3C7D00EBC383824 90L075-KA-5-BC-60-P-3-S1-D-03-GBA-35-35-24 90L075KA5BC60P3S1D03GBA353524 90-L-075-KA-5-BC-60-P-3-S1-D-03-GBA-35-35-24 90L075KA5BC60P3S1D03GBA353524 90L075-KA-5-BC-60-P-3-T2-D-04-GBA-42-42-20 90L075KA5BC60P3T2D04GBA424220 90-L-075-KA-5-BC-60-P-3-T2-D-04-GBA-42-42-20 90L075KA5BC60P3T2D04GBA424220 90L075-KA-5-BC-60-R-3-C7-D-04-GBA-42-42-20 90L075KA5BC60R3C7D04GBA424220 90-L-075-KA-5-BC-60-R-3-C7-D-04-GBA-42-42-20 90L075KA5BC60R3C7D04GBA424220 90L075-KA-5-BC-60-S-3-C6-D-04-GBA-23-23-20 90L075KA5BC60S3C6D04GBA232320 90-L-075-KA-5-BC-60-S-3-C6-D-04-GBA-23-23-20 90L075KA5BC60S3C6D04GBA232320 90L075-KA-5-BC-60-S-3-C7-D-03-GBA-23-23-24 90L075KA5BC60S3C7D03GBA232324 90-L-075-KA-5-BC-60-S-3-C7-D-03-GBA-23-23-24 90L075KA5BC60S3C7D03GBA232324 90L075-KA-5-BC-60-S-3-C7-D-04-GBA-42-42-24 90L075KA5BC60S3C7D04GBA424224 90-L-075-KA-5-BC-60-S-3-C7-D-04-GBA-42-42-24 90L075KA5BC60S3C7D04GBA424224 90L075-KA-5-BC-60-S-3-C7-E-03-GBA-23-23-24 90L075KA5BC60S3C7E03GBA232324 90-L-075-KA-5-BC-60-S-3-C7-E-03-GBA-23-23-24 90L075KA5BC60S3C7E03GBA232324 90L075-KA-5-BC-60-S-3-S1-D-00-GBA-35-35-24 90L075KA5BC60S3S1D00GBA353524 90-L-075-KA-5-BC-60-S-3-S1-D-00-GBA-35-35-24 90L075KA5BC60S3S1D00GBA353524 90-L-075-KA-5-BC-60-S-3-S1-D-03-GBA-26-26-24 90L075KA5BC60S3S1D03GBA262624 90L075-KA-5-BC-60-S-3-S1-D-03-GBA-42-42-20 90L075KA5BC60S3S1D03GBA424220 90-L-075-KA-5-BC-60-S-3-S1-D-03-GBA-42-42-20 90L075KA5BC60S3S1D03GBA424220 90-L-075-KA-5-BC-60-S-4-C7-D-03-GBA-23-23-24 90L075KA5BC60S4C7D03GBA232324 90L075-KA-5-BC-60-S-4-C7-E-03-GBA-35-35-24 90L075KA5BC60S4C7E03GBA353524。
