原裝今年現(xiàn)貨VT-SSPA1-508-20/V0油液中各種污染物引起元件各種形式的磨損,固體顆粒進入運動副間隙中,對零件表面產(chǎn)生切削磨損或是疲勞磨損。D41FSA32C2NXW0 D41FSA32C2NXW039
D91FWE01HC2NLW8 D91FWE01HC2NLW828
D41FWE01FC2NLW8 D41FWE01FC2NLW827
D81FHA32F1NB00 D81FHA32F1NB0048
D41FWE01FC4NXW0 D41FWE01FC4NXW026
D41FHB61F2VB00 D41FHB61F2VB0048
D41FHA32C2NE00 D41FHA32C2NE0048
D91FWE02HC1NXW0 D91FWE02HC1NXW028
D31FWE01CC5NXW0 D31FWE01CC5NXW026
D41FWE01FC2NLW0 D41FWE01FC2NLW026
D111FHE01L2NE00 D111FHE01L2NE0048
D41FWE02FC1VLW0 D41FWE02FC1VLW026
D31FSE01B2NXW0 D31FSE01B2NXW037
D41FWA32FC1NLW0 D41FWA32FC1NLW026
D91FSB32H1NXW0 D91FSB32H1NXW040
D81FSE02E4NXW0 D81FSE02E4NXW039
D31FSB89B4NXW0 D31FSB89B4NXW037
D31FHE02C1VB00 D31FHE02C1VB0047
D31FSB31B4NLW0 D31FSB31B4NLW037
D31FSE01B1NXW0 D31FSE01B1NXW037
D1FPE50MB9NS00 D1FPE50MB9NS0015
D31FWB31CC4NXW0 D31FWB31CC4NXW026
D91FWE02HC4NLW0 D91FWE02HC4NLW028
D1FPE50MA9NS00 D1FPE50MA9NS0015
D1FPE50HB9NS00 D1FPE50HB9NS0015
D1FPE50FB9NS00 D1FPE50FB9NS0015
D1FPE50FA9NS00 D1FPE50FA9NS0015
D41FWB32FC1NLW0 D41FWB32FC1NLW026
D81FHA61H2NB00 D81FHA61H2NB0048
D41FWE02FC5NLW0 D41FWE02FC5NLW026
D31FSE01B5NXW0 D31FSE01B5NXW037
D81FHE52H2NB00 D81FHE52H2NB0048
D3FPE55PA9NB00 D3FPE55PA9NB0016
D81FHE01H5NB00 D81FHE01H5NB0048
D1FPE50MB9NS50 D1FPE50MB9NS5015
D3FPE02YC9NS53 D3FPE02YC9NS5316
D3FPE01YC9NS53 D3FPE01YC9NS5316
D1FPB31CC9NE00 D1FPB31CC9NE0015
D81FSB88E2NXW0 D81FSB88E2NXW039
D41FWE01FC4VLW0 D41FWE01FC4VLW026
P26-39514-0 4DP06 3E43F20003B1 G12C1X
SE2EHAA3PVA2.5 SERVOVENTIL
D111FHB11L2NB08 D111FHB11L2NB0848
D31FSE02B1NLW0 D31FSE02B1NLW037
D1FPE50HB9HB00 D1FPE50HB9HB0015
高速液流中的固體顆粒對元件的表面沖擊引起沖蝕磨損。油液中的水和油液氧化變質(zhì)的生成物對元件產(chǎn)生腐蝕作用。此外,系統(tǒng)的油液中的空氣引起氣蝕,導(dǎo)致元件表面剝蝕和破壞。
2)元件堵塞與卡緊故障
固體顆粒堵塞液壓閥的間隙和孔口,引起閥芯阻塞和卡緊,影響工作性能,甚至導(dǎo)致嚴(yán)重的事故。0811405060 VT-VRRA1-527-20/V0現(xiàn)貨
0811405063 VT-VRRA1-527-20/V0/2STV現(xiàn)貨
0811405065 VT-VRRA1-527-20/V0/K40-AGC
0811405066 VT-VRRA1-527-20/V0/K60-AGC
0811405067 VT-VRRA1-537-20/V0/K40-AGC
0811405073 VT-VRPA1-527-20/V0/RTS-2STV
0811405074 VT-VRPA1-527-20/V0/RTS-2/2V
0811405076 VT-VRPA1-527-20/V0/2/2V
0811405079 VT-VSPA1-525-10/V0/RTP
0811405080 VT-VSPA2-525-10/V0/RTP
0811405094 VT-SWKA2-5-1X/V0/0
0811405096 VT-VRPA1-527-10/V0/PV
力士樂比例閥實際上是在三通調(diào)速閥基礎(chǔ)上發(fā)展起來的。
1)如果不考慮先導(dǎo)閥RY,則圖示為一個典型的三通型流量閥,也就是由比例節(jié)流閥與并聯(lián)的定差溢流閥組成,用于定量泵閥控系統(tǒng)調(diào)速(不必另設(shè)溢流閥或安全閥),具有節(jié)負(fù)載適應(yīng)當(dāng)節(jié)能好效果,備受用戶歡迎。
2)其特點是液壓泵的出口壓力僅僅比負(fù)載開一個節(jié)流閥閥口的壓差,也就是高一個定差溢流閥所確定的壓差。也就是說隨著負(fù)載壓力的升高,系統(tǒng)壓力有可能高出允許值,為此,就增加一個先導(dǎo)閥RY。這個先導(dǎo)閥一般是手調(diào)式。這樣一來,當(dāng)系統(tǒng)壓力達到先導(dǎo)閥調(diào)定值時,先導(dǎo)閥與主閥合成,其功能由定差溢流閥轉(zhuǎn)變成常規(guī)溢流閥,限制了系統(tǒng)*高壓力。
0811405097 VT-VRPA1-537-10/V0/PV
0811405098 VT-VRPA1-527-10/V0/QV
0811405058 VT-MARAM1-537-10/V18
0811405060 VT-VRRA1-527-20/V0
0811405061 VT-VRRA1-537-20/V0
0811405062 VT-VRPA1-537-10/V0
0811405063 VT-VRRA1-527-20/V0/2STV
0811405064 VT-VRPA1-527-20/V0/PO-IS
0811405065 VT-VRRA1-527-20/V0/K40-AGC
0811405066 VT-VRRA1-527-20/V0/K60-AGC
0811405067 VT-VRRA1-537-20/V0/K40-AGC
0811405068 VT-VRRA1-527-20/V0/K40-AGC-2STV
0811405069 VT-VRRA1-527-20/V0/KV-AGC
0811405070 VT-VRRA1-537-20/V0/KV-AGC
0811405073 VT-VRPA1-527-20/V0/RTS-2STV
0811405074 VT-VRPA1-527-20/V0/RTS-2/2V
0811405075 VT-VARA1-500-10/V0/VLRC
0811405076 VT-VRPA1-527-20/V0/2/2V
0811405077 VT-KPRAP1-537-10/V16
0811405078 VT-VRPA1-542-10/V2
0811405079 VT-VSPA1-525-10/V0/RTP
0811405080 VT-VSPA2-525-10/V0/RTP
0811405081 VT-VSPA1-508-10/V0/RTP
0811405082 VT-KRRA2-537-20/V0/
0811405083 VT-KRRA2-527-20/V0/2CH
0811405084 VT-VARAP1-527-10/V0
3)如果閥中的節(jié)流閥用比例節(jié)流閥,先導(dǎo)閥用比例壓力閥,則構(gòu)成電液比例壓力流量復(fù)合控制閥,俗稱PQ閥(也稱雙比例),塑機行業(yè)用的不少。
4)PQ閥具有壓力流量復(fù)合控制功能,但干起活來還是分開來處理的,就是說,當(dāng)控制壓力時,流量閥讓一讓(將流量輸入值調(diào)大,以不影響壓力的控制);當(dāng)調(diào)節(jié)流量時,壓力閥讓一讓(將壓力輸入值調(diào)高,以不影響流量控制)。
5)隨便提到,由三通調(diào)速閥引申出來的閥還不少,例如工程機械用的單路穩(wěn)流閥,優(yōu)先閥等等
0811405085 VT-VARAP1-537-10/V0
0811405086 VT-VARAP1-537-10/V0/5/3V
0811405087 VT-VARAP1-527-10/V0/2STV
0811405088 VT-VARAP1-527-10/V0/3/2VAX
0811405090 VT-VPRAS1-527-10/V0
0811405093 VT-SWKA1-5-1X/V0/0
0811405094 VT-SWKA2-5-1X/V0/0
0811405098 VT-VRPA1-527-10/V0/QV
0811405099 VT-VRPA1-537-10/V0/QV
0811405103 VT-VRPA1-527-10/V0/QV-RTP
0811405104 VT-VRPA1-537-10/V0/QV-RTP
0811405105 VT-SWMA1-5-1X/V0/0
0811405106 VT-MSPA2-525-10/V0
0811405107 VT-SWMA2-5-1X/V0/0
0811405108 VT-SWMA3-5-1X/V0/0
0811405109 VT-MNE1-5-1X/V0/0