派克比例閥D41FHB31C1NE0048原裝 |
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派克比例閥D41FHB31C1NE0048原裝正品該型號(hào)已經(jīng)停產(chǎn),新型號(hào)?D41FCB31CC1NE70??一種是開(kāi)關(guān)控制:要么全開(kāi)、要么全關(guān),流量要么大、要么小,沒(méi)有中間狀態(tài),如普通的電磁直通閥、電磁換向閥、電液換向閥。 另一種是連續(xù)控制:閥口可以根據(jù)需要打開(kāi)任意一個(gè)開(kāi)度,由此控制通過(guò)流量的大小,這類(lèi)閥有手動(dòng)控制的,如節(jié)流閥,也有電控的,如比例閥、伺服閥。 所以使用比例閥或伺服閥的目的就是:以電控方式實(shí)現(xiàn)對(duì)流量的節(jié)流控制(當(dāng)然經(jīng)過(guò)結(jié)構(gòu)上的改動(dòng)也可實(shí)現(xiàn)壓力控制等),既然是節(jié)流控制,就必然有能量損失,伺服閥和其它閥不同的是,它的能量損失更大一些,因?yàn)樗枰欢ǖ牧髁縼?lái)維持前置級(jí)控制油路的工作伺服閥的主閥一般來(lái)說(shuō)和換向閥一樣是滑閥結(jié)構(gòu),只不過(guò)閥芯的換向不是靠電磁鐵來(lái)推動(dòng),而是靠前置級(jí)閥輸出的液壓力來(lái)推動(dòng),這一點(diǎn)和電液換向閥比較相似,只不過(guò)電液換向閥的前置級(jí)閥是電磁換向閥,而伺服閥的前置級(jí)閥是動(dòng)態(tài)特性比較好的噴嘴擋板閥或射流管閥。 4WREE10E75-2X/G24K31/F1V? 4WRZE25W5-325-7X/6EG24N9ETK31/F1D3V 4WREE?6?V08-2X/G24K31/A1V 4WREE?10?E75-2X/G24K31/A1V 4WREE?10?W75-2X/G24K31/A1V DBETBEX-1X/180G24K31F1M DREBE?6X-1X/175MG24K31A1M 4WREE6E1-32-2X/G24K31/A1V 3DREPE?6?C-2X/25EG24N9K31/F1M?現(xiàn)貨 4WRPH6C4B40L-2X/G24Z4/M?現(xiàn)貨 4WREE?10?W75-2X/G24K31/A1V?現(xiàn)貨 3DREME?16?P-7X/200YG24K31F1V 3DREME?10?P-7X/200YG24K31F1V 4WREE?10?E75-2X/G24K31/A1V 4WREE6V08-2X/G24K31/A1V DREBE6X-1X/175MG24K31A1M 4WREE?10W3-75-2X/G24K31/F1V 4WRKE25E350L-3X/6EG24EK31/A1D3M ?4WRKE16E200L-3X/6EG24EK31/A1D3M=XV ?4WRL25V370M-3X/G24Z4/M?期貨特價(jià) 4WRL?16?V200M-3X/G24Z4/M?期貨特價(jià)? ?A?A10VSO140DR/31R-PPB12N00?現(xiàn)貨供應(yīng) VT-MSPA2-1-1X/V0/0 VT-VRRA1-527-20/V0 VT-VSPA2-1-2X/V0/T5 ?VT-VSPA2-1-2X/V0/T1 ?VT-5035-17 特價(jià)供應(yīng)力士樂(lè)產(chǎn)品??4WRZE16W6-150-7X/6EG24N9K31/F1D3M?現(xiàn)貨 派克現(xiàn)貨? D111FBE01LC4NF00? D91FCE01HC4NB70? D91FBE01HC1NF00? D41FBE01FC4NF00? D41FBE01FC1NF00? D3FBE01SC0NF00? D31FBE01CC1NF00? D31FBE01CC4NF00 柱塞泵? PV270R1K1T1NMMC? PV016R1K1T1NMMC? PV032R1K1T1NMMC? PV040R1K1T1NMMC? PV063R1K1T1NMMC? PV080R1K1T1NMMC? PV092R1K1T1NMMC? PV140R1K1T1NMMC? PV180R1K1T1NMMC?? PV270R1K1T1NMMC? D3FBE02SC0NF00? D41FBE01FC1NG00? D31FBE01CC1NG00? D41FBE02FC1NF00? D41FBE02FC4NF00 D41FBE01FC2NF00? D91FCE01HC4NB70? D31FBE02CC4NG00 D41FCE01FC1NB70? D41FCE01CC4NB70? D41FBE01FC1NF00? D31FBE01EC4NF00? D31FBE01CC4NF00? D31FBE02EC4NF00? D31FBE01EC1NF00? D41FBE01FC4NF00? D41FBB31FC2NF00 D91FBE01HC1NF00? D91FBE01HC4NF00? D91FBE02HC1NF00 D41FBE01FC1NF00? D41FBE02FC4NG0010? D111FBE01LC4NF00 D31FCE01CC4NB70 D31FCE01DC4NB70? D31FCE02DC1NB70D31FHE01A4NE00 D31FHE50C2NB00 D41FHA31C2NB00 D41FHB31F2NB08 D41FHE52B1NB00 D41FHE52C5NB00 D41FHE52E5NB00 D46FHE52F5NB00 D81FHA31H1NB00 D81FHE01F4NB00 D81FSE06E4NXW0 D1FVE02BCVG0A D111FHE01L1NB00 D31FHB32A4NB00 D31FHE02A1NB00 D41FHE01C1NB00 D41FHE52C2NB00 D46FHE01F4NB00 D91FSE01H2NXW8 D91FSE02H4NLW0 TG0195EW080AABP TG0195HV440AAAB C025CA00122599N C040CA12001599N DSDA1002P07G DWEE527P20ELAF D31FHA60A1NB00 D31FHB31C1NB08 D31FHB61A1NB00 D31FSE80B4NXW0 D41FHA32F2NB00 D41FHE02C4NB00 D41FHE02F1NE00 D81FHA31H5NB00 D81FHB61H1NB00 D81FHE02E4NB00 D81FHE02E5NB00 P32HA12BNYP -/hjjgee/-
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