R900503741 DR10-5-5X/200Y力士樂(lè)溢流閥

R900503741 DR10-5-5X/200Y力士樂(lè)溢流閥

溢流閥是一種液壓壓力控制閥。在液壓設(shè)備中主要起定壓溢流作用，穩(wěn)壓，系統(tǒng)卸荷和安全保護(hù)作用。 　定壓溢流作用：在定量泵節(jié)流調(diào)節(jié)系統(tǒng)中，定量泵提供的是恒定流量。當(dāng)系統(tǒng)壓力加大時(shí)，會(huì)使流量需求減小。此時(shí)溢流閥開(kāi)啟，使多余流量溢回油箱，保證溢流閥進(jìn)口壓力，即泵出口壓力恒定（閥口常隨壓力波動(dòng)開(kāi)啟）。 　　

穩(wěn)壓作用：溢流閥串聯(lián)在回油路上，溢流閥產(chǎn)生背壓運(yùn)動(dòng)部件平穩(wěn)性增加。 　　

系統(tǒng)卸荷作用：在溢流閥的遙控口串接溢小流量的電磁閥，當(dāng)電磁鐵通電時(shí)，溢流閥的遙控口通油箱，此時(shí)液壓泵卸荷。溢流閥此時(shí)作為卸荷閥使用。 　　

安全保護(hù)作用：系統(tǒng)正常工作時(shí)，閥門關(guān)閉。只有負(fù)載超過(guò)規(guī)定的極限（系統(tǒng)壓力超過(guò)調(diào)定壓力）時(shí)開(kāi)啟溢流，進(jìn)行過(guò)載保護(hù)，使系統(tǒng)壓力不再增加（通常使溢流閥的調(diào)定壓力比系統(tǒng)較好工作壓力高10%～20%）。 　　

實(shí)際應(yīng)用中一般有：作卸荷閥用，作遠(yuǎn)程調(diào)壓閥，作高低壓多級(jí)控制閥，作順序閥，用于產(chǎn)生背壓（串在回油路上）。 　　

溢流閥一般有兩種結(jié)構(gòu)：1、直動(dòng)型溢流閥 。2、先導(dǎo)型溢流閥。 　　

對(duì)溢流閥的主要要求：調(diào)壓范圍大，調(diào)壓偏差小，壓力振擺小，動(dòng)作靈敏，過(guò)載能力大，噪聲小。

R900503741 DR10-5-5X/200Y

R900972812 DR10-5-5X/200Y/12

R900598358 DR10-5-5X/200YM

R900618736 DR10-5-5X/200YM/12

R900510387 DR10-5-5X/200YMJ

R900599454 DR10-5-5X/200YMV

R900937292 DR10-5-5X/200YMV/12

R900523911 DR10-5-5X/200YV

R900708115 DR10-5-5X/315-210YM

R901356016 DR10-5-5X/315-250YM

R900596883 DR10-5-5X/315Y

R900563182 DR10-5-5X/315Y/12

R900597132 DR10-5-5X/315YM

R900926554 DR10-5-5X/315YM/12

R900510388 DR10-5-5X/315YMJ

R900505977 DR10-5-5X/315YMV

R900500690 DR10-5-5X/315YV

R901440907 DR10-5-5X/350Y

R900512119 DR10-5-5X/350YM

R900937100 DR10-5-5X/350YM/12

R901352208 DR10-5-5X/350YMJ

R900912911 DR10-5-5X/350YMV

R901129493 DR10-5-5X/50P10YM

R900503742 DR10-5-5X/50Y

R900972467 DR10-5-5X/50Y/12

R900953054 DR10-5-5X/50Y/50

R900598359 DR10-5-5X/50YM

R900920867 DR10-5-5X/50YM/12

R901239031 DR10-5-5X/50YM/12SO12

R900902861 DR10-5-5X/50YMJ

R900949417 DR10-5-5X/50YMV

R978872319 DR10-5-5X/50YMV/12

R900509062 DR10-5-5X/50YV

R901361183 DR10-5-5X=200YM

R901322585 DR10-5-5X=315YMJ

R901346421 DR10-5-5X=50YMJ

R900596712 DR10-6-5X/100Y

R900246853 DR10-6-5X/100YSO30

R900500963 DR10-6-5X/100YM

R900500988 DR10-6-5X/100YM

R900926225 DR10-6-5X/100YMV

R900520651 DR10-6-5X/100YV

R901080229 DR10-6-5X/160XYM

R900501289 DR10-6-5X/200Y

R900522751 DR10-6-5X/200Y/12

R900503981 DR10-6-5X/200YM

R901010350 DR10-6-5X/200YMV

R900706664 DR10-6-5X/200YV

R901080226 DR10-6-5X/315XY

R900598832 DR10-6-5X/315Y

R900503364 DR10-6-5X/315YM

R900513001 DR10-6-5X/315YMV

R900599049 DR10-6-5X/315YV

R900514565 DR10-6-5X/50Y

R900501378 DR10-6-5X/50YM

R901287256 DR10-6-5X/50YMV

R900772029 DR10-6-5X/50YV

R900514994 DR10-7-5X/100Y

R900775595 DR10-7-5X/100Y/12

R900518619 DR10-7-5X/100YM

R900516448 DR10-7-5X/200Y

R900563666 DR10-7-5X/200YM

R901156416 DR10-7-5X/315XYM

R900528254 DR10-7-5X/315Y

R901180790 DR10-7-5X/315YM

R900932819 DR10-7-5X/350YM

R900933455 DR10-7-5X/350YMV

R900538468 DR10-7-5X/50Y

R900509278 DR10-7-5X/50YM

R901080391 DR10-7-5X/80XY

R901080214 DR10-7-5X/80XYM

R900504542 DR15G4-5X/100YM

R900744876 DR15G4-5X/100YM/12

R900513704 DR15G4-5X/200YM

R900705667 DR15G4-5X/200YM/12

R900521037 DR15G4-5X/200YMV/12

R900503600 DR15G4-5X/315YM

R901316526 DR15G4-5X/350YM

R900520358 DR15G4-5X/350YM/12

R900501122 DR15G5-5X/100YM

R900947513 DR15G5-5X/100YM/12

R900578990 DR15G5-5X/100YMV

R900925334 DR15G5-5X/100YMV/12

R900501123 DR15G5-5X/200YM

R900533233 DR15G5-5X/200YMV

R901026873 DR15G5-5X/315-200YM

R901025655 DR15G5-5X/315-250YM

R901361007 DR15G5-5X/315P230YM

R900597134 DR15G5-5X/315YM

R900572831 DR15G5-5X/315YM/12

R901149102 DR15G5-5X/315YMV

R900930632 DR15G5-5X/350YM

R900969885 DR15G5-5X/350YM/12

R900514122 DR15G5-5X/50YM

R900967601 DR15G5-5X/50YMV

R900569675 DR15G6-5X/100YM

R900937097 DR15G6-5X/200YM

R900921436 DR15G6-5X/200YM/12