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 

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