?減壓閥功用 功用：降低系統(tǒng)某一支路的油液壓力，使同一系統(tǒng)有兩個(gè)或多個(gè)不同壓力 減壓閥分類：直動(dòng)式、先導(dǎo)式??定值減壓閥/定差減壓閥 減壓閥減壓原理 減壓原理：利用油液在某處的壓力損失，使出口壓力低于進(jìn)口壓力，并保持恒定，因此也稱為定值減壓閥。
工作原理 p2導(dǎo)閥關(guān)閉，主閥左位，f最?大，不減壓 p2>pt時(shí)，導(dǎo)閥打開，主閥兩端產(chǎn)生壓差 當(dāng)△P軟t時(shí)，同上 當(dāng)△P>F軟t時(shí)，主閥閥芯右移，f↓，p2↓ 先導(dǎo)式減壓閥調(diào)壓原理 調(diào)壓原理：調(diào)節(jié)調(diào)壓彈簧，改變?硬彈簧力，即可改變出口壓力。
減壓閥特點(diǎn) 特點(diǎn)：在減壓閥出口油液不再流動(dòng)時(shí)，由于先導(dǎo)閥卸油仍未停止，減?壓口仍有油液流動(dòng)，閥就處于工作狀態(tài)，出口壓力也就保持調(diào)定壓力不變 減壓閥與溢流閥比較 溢流閥、減壓閥 a保持進(jìn)口壓力不變出口壓力 b內(nèi)部回油外部回油 c閥口常閉閥口常開 d閥芯二凸肩閥芯三凸肩 e??一般并聯(lián)于系統(tǒng)一般串聯(lián)于系統(tǒng) 順序閥功用 功能：液壓系統(tǒng)壓力變化?控制油路的通斷，實(shí)現(xiàn)多個(gè)液壓元件按一定順序移動(dòng)。
順序閥分類 按結(jié)構(gòu)形式:直動(dòng)式、先導(dǎo)式 按泄漏方式：內(nèi)泄式、外泄式 直動(dòng)式順序閥工作原理 pA閥口關(guān)閉，AB pA>Ft,閥口打開，AB，下一個(gè)執(zhí)行元件動(dòng)作 直動(dòng)式順序閥調(diào)節(jié)原理 調(diào)節(jié)原理：調(diào)節(jié)調(diào)壓螺釘，改變彈簧?力，即可改變開啟壓力。
壓力繼電器功用 功用：根據(jù)系統(tǒng)壓力變化，自動(dòng)接通或斷開電路，實(shí)現(xiàn)程?序控制或安全保護(hù) 壓力繼電器組成 壓力—位移轉(zhuǎn)換器：柱塞式、彈簧管式、膜片式、波紋管式 微動(dòng)開關(guān) 壓力繼電器主要性能 1調(diào)壓范圍,即發(fā)出電信號(hào)的最低和?最高工作壓力的范圍。
調(diào)整調(diào)壓螺帽，即調(diào)整工作壓力 2通斷調(diào)節(jié)區(qū)間（返回區(qū)間） 開啟壓力-閉合壓力=返回區(qū)間 壓力繼電器工作原理 pk>pT時(shí)，柱塞上升，發(fā)出信號(hào) pk柱塞下降，斷開信號(hào) 90-L-075-KA-1-AB-60-L-3-T1-D-00-GBA-29-29-24 90L075KA1AB60L3T1D00GBA292924 90-L-075-KA-1-AB-60-P-3-C6-D-03-GBA-35-35-20 90L075KA1AB60P3C6D03GBA353520 90-L-075-KA-1-AB-60-P-3-C7-D-02-GBA-42-42-24 90L075KA1AB60P3C7D02GBA424224 90-L-075-KA-1-AB-60-P-3-C7-D-03-GBA-42-42-24 90L075KA1AB60P3C7D03GBA424224 90-L-075-KA-1-AB-60-P-3-S1-D-03-GBA-32-32-24 90L075KA1AB60P3S1D03GBA323224 90L075-KA-1-AB-60-P-3-T2-D-03-GBA-38-14-24 90L075KA1AB60P3T2D03GBA381424 90-L-075-KA-1-AB-60-P-3-T2-D-03-GBA-38-14-24 90L075KA1AB60P3T2D03GBA381424 90-L-075-KA-1-AB-60-P-3-T2-D-03-GBA-38-26-24 90L075KA1AB60P3T2D03GBA382624 90-L-075-KA-1-AB-60-P-4-C6-D-03-GBA-21-21-24 90L075KA1AB60P4C6D03GBA212124 90-L-075-KA-1-AB-60-P-4-S1-E-03-GBA-26-26-24 90L075KA1AB60P4S1E03GBA262624 90L075-KA-1-AB-60-P-4-S1-E-03-GBA-35-35-24 90L075KA1AB60P4S1E03GBA353524 90-L-075-KA-1-AB-60-P-4-S1-E-03-GBA-35-35-24 90L075KA1AB60P4S1E03GBA353524 90-L-075-KA-1-AB-60-R-3-S1-D-03-GBA-29-29-24 90L075KA1AB60R3S1D03GBA292924 90L075-KA-1-AB-60-S-3-C7-D-04-GBA-29-29-20 90L075KA1AB60S3C7D04GBA292920 90L075-KA-1-AB-60-S-3-S1-D-03-GBA-23-23-24 90L075KA1AB60S3S1D03GBA232324 90-L-075-KA-1-AB-60-S-3-S1-D-03-GBA-23-23-24 90L075KA1AB60S3S1D03GBA232324 90-L-075-KA-1-AB-60-S-3-S1-D-03-GBA-42-42-24 90L075KA1AB60S3S1D03GBA424224 90-L-075-KA-1-AB-61-S-3-S1-E-03-GBA-20-20-24 90L075KA1AB61S3S1E03GBA202024 90-L-075-KA-1-AB-80-L-3-C6-D-03-GBA-32-32-24 90L075KA1AB80L3C6D03GBA323224 90L075-KA-1-AB-80-L-3-C7-E-03-GBA-45-36-30 90L075KA1AB80L3C7E03GBA453630 90-L-075-KA-1-AB-80-L-3-C7-E-03-GBA-45-36-30 90L075KA1AB80L3C7E03GBA453630 90-L-075-KA-1-AB-80-L-3-S1-D-03-GBA-42-42-24 90L075KA1AB80L3S1D03GBA424224 90-L-075-KA-1-AB-80-L-3-T1-D-00-GBA-29-29-24 90L075KA1AB80L3T1D00GBA292924 90-L-075-KA-1-AB-80-P-3-T1-E-03-EBC-35-14-24 90L075KA1AB80P3T1E03EBC351424 90-L-075-KA-1-AB-80-P-4-S1-D-03-GBA-35-35-24 90L075KA1AB80P4S1D03GBA353524 90-L-075-KA-1-AB-80-R-3-S1-D-02-GBA-35-35-24 90L075KA1AB80R3S1D02GBA353524 90-L-075-KA-1-AB-80-R-3-S1-E-03-GBA-35-35-24 90L075KA1AB80R3S1E03GBA353524 90-L-075-KA-1-AB-80-R-3-T1-E-03-EBC-38-14-24 90L075KA1AB80R3T1E03EBC381424 90-L-075-KA-1-AB-80-R-4-S1-D-03-GBA-38-38-24 90L075KA1AB80R4S1D03GBA383824 90L075-KA-1-AB-80-S-3-C7-D-03-GBA-32-32-26 90L075KA1AB80S3C7D03GBA323226 90-L-075-KA-1-AB-80-S-3-C7-D-03-GBA-32-32-26 90L075KA1AB80S3C7D03GBA323226 90L075-KA-1-AB-80-S-3-S1-C-02-GBA-42-42-24 90L075KA1AB80S3S1C02GBA424224 90-L-075-KA-1-AB-80-S-3-S1-C-02-GBA-42-42-24 90L075KA1AB80S3S1C02GBA424224 90-L-075-KA-1-AB-80-S-3-S1-D-03-GBA-35-35-24 90L075KA1AB80S3S1D03GBA353524 90-L-075-KA-1-AB-81-S-3-T2-E-00-GBA-35-35-20 90L075KA1AB81S3T2E00GBA353520 90-L-075-KA-1-AC-80-L-4-S1-D-00-GBA-35-35-24 90L075KA1AC80L4S1D00GBA353524 90-L-075-KA-1-AC-80-S-3-S1-E-00-GBA-42-42-24 90L075KA1AC80S3S1E00GBA424224 90-L-075-KA-1-BB-60-S-3-C6-C-03-GBA-35-35-24 90L075KA1BB60S3C6C03GBA353524 90-L-075-KA-1-BB-60-S-4-S1-E-00-GBA-23-23-24 90L075KA1BB60S4S1E00GBA232324 90-L-075-KA-1-BB-60-S-4-S1-E-03-GBA-20-20-24 90L075KA1BB60S4S1E03GBA202024 90-L-075-KA-1-BB-80-S-3-C6-E-03-GBA-32-32-24 90L075KA1BB80S3C6E03GBA323224 90L075-KA-1-BB-80-S-3-C7-C-02-FAC-42-42-24 90L075KA1BB80S3C7C02FAC424224 90-L-075-KA-1-BB-80-S-3-C7-C-02-FAC-42-42-24 90L075KA1BB80S3C7C02FAC424224 90-L-075-KA-1-BB-80-S-4-S1-D-00-GBA-42-42-24 90L075KA1BB80S4S1D00GBA424224 90-L-075-KA-1-BB-80-S-4-S1-E-00-GBA-23-23-24 90L075KA1BB80S4S1E00GBA232324 90-L-075-KA-1-BC-60-P-3-S1-D-03-GBA-35-35-24 90L075KA1BC60P3S1D03GBA353524 90-L-075-KA-1-BC-60-P-4-S1-E-03-GBA-26-26-24 90L075KA1BC60P4S1E03GBA262624 90-L-075-KA-1-BC-60-R-3-S1-D-03-GBA-42-42-24 90L075KA1BC60R3S1D03GBA424224 90-L-075-KA-1-BC-60-R-3-S1-E-03-GBA-42-42-30 90L075KA1BC60R3S1E03GBA424230 90-L-075-KA-1-BC-60-S-3-C6-D-03-GBA-35-35-24 90L075KA1BC60S3C6D03GBA353524 90-L-075-KA-1-BC-60-S-3-C6-E-03-GBA-29-29-24 90L075KA1BC60S3C6E03GBA292924 90-L-075-KA-1-BC-60-S-3-S1-E-00-GBA-23-23-24 90L075KA1BC60S3S1E00GBA232324 90-L-075-KA-1-BC-60-S-3-S1-E-00-GBA-32-32-20 90L075KA1BC60S3S1E00GBA323220 90-L-075-KA-1-BC-60-S-4-S1-E-00-GBA-23-23-24 90L075KA1BC60S4S1E00GBA232324 90-L-075-KA-1-BC-61-S-3-S1-D-03-GBA-14-14-20 90L075KA1BC61S3S1D03GBA141420 90-L-075-KA-1-BC-80-L-3-S1-E-03-GBA-38-38-24 90L075KA1BC80L3S1E03GBA383824 90-L-075-KA-1-BC-80-P-3-S1-E-00-GBA-42-42-24 90L075KA1BC80P3S1E00GBA424224 90-L-075-KA-1-BC-80-P-4-S1-D-03-GBA-35-35-24 90L075KA1BC80P4S1D03GBA353524 90-L-075-KA-1-BC-80-P-4-S1-D-03-GBA-38-38-24 90L075KA1BC80P4S1D03GBA383824 90-L-075-KA-1-BC-80-P-4-S1-E-03-GBA-14-14-24 90L075KA1BC80P4S1E03GBA141424 90-L-075-KA-1-BC-80-R-4-S1-D-00-GBA-35-35-24 90L075KA1BC80R4S1D00GBA353524 90-L-075-KA-1-BC-80-R-4-S1-D-03-GBA-23-23-24 90L075KA1BC80R4S1D03GBA232324 90-L-075-KA-1-BC-80-R-4-S1-D-03-GBA-35-35-24 90L075KA1BC80R4S1D03GBA353524 90-L-075-KA-1-BC-80-R-4-S1-D-03-GBA-38-38-24 90L075KA1BC80R4S1D03GBA383824 90-L-075-KA-1-BC-80-R-4-S1-E-09-GBA-38-38-24 90L075KA1BC80R4S1E09GBA383824 90-L-075-KA-1-BC-80-S-3-C6-D-06-FAC-32-32-20 90L075KA1BC80S3C6D06FAC323220 90L075-KA-1-BC-80-S-3-C7-C-02-FAC-42-42-24 90L075KA1BC80S3C7C02FAC424224 90-L-075-KA-1-BC-80-S-3-C7-C-02-FAC-42-42-24 90L075KA1BC80S3C7C02FAC424224 90-L-075-KA-1-BC-80-S-3-C7-E-02-GBA-35-35-24 90L075KA1BC80S3C7E02GBA353524 90-L-075-KA-1-BC-80-S-3-S1-D-03-GBA-26-26-20 90L075KA1BC80S3S1D03GBA262620 90-L-075-KA-1-BC-80-S-4-C7-E-03-GBA-35-35-24 90L075KA1BC80S4C7E03GBA353524 90-L-075-KA-1-BC-80-S-4-S1-D-00-GBA-35-35-24 90L075KA1BC80S4S1D00GBA353524 90-L-075-KA-1-BC-80-S-4-S1-E-00-GBA-23-23-24 90L075KA1BC80S4S1E00GBA232324 90-L-075-KA-1-CD-60-L-4-S1-D-03-GBA-35-35-24 90L075KA1CD60L4S1D03GBA353524 90-L-075-KA-1-CD-60-P-3-C7-D-02-GBA-29-29-24 90L075KA1CD60P3C7D02GBA292924 90-L-075-KA-1-CD-60-P-4-S1-E-03-GBA-42-42-24 90L075KA1CD60P4S1E03GBA424224 90-L-075-KA-1-CD-60-R-3-S1-E-03-GBA-35-35-24 90L075KA1CD60R3S1E03GBA353524 90-L-075-KA-1-CD-60-R-3-S1-E-03-GBA-42-42-24 90L075KA1CD60R3S1E03GBA424224 90-L-075-KA-1-CD-60-S-3-S1-D-03-GBA-42-42-24 90L075KA1CD60S3S1D03GBA424224。
