详细介绍
武汉盛美特机电设备有限公司主营:REXROTH德国力士乐、VICKERS美国威格士、ATOS意大利阿托斯、SUN美国太阳、DENISON法国丹尼逊、PARKER美国派克、DUPLOMATIC意大利迪普马、HAWE德国哈威、HYDAC贺德克,CALZONI意大利卡桑尼、MOOG美国穆格,HYDRAFORCE海德福斯,雅歌辉托斯等,价格优势,欢迎询价。
比例阀对流量的控制可以分为两种:
一种是开关控制:要么全开、要么全关,流量要么大、要么小,没有中间状态,如普通的电磁直通阀、电磁换向阀、电液换向阀。
另一种是连续控制:阀口可以根据需要打开任意一个开度,由此控制通过流量的大小,这类阀有手动控制的,如节流阀,也有电控的,如比例阀、伺服阀。
所以使用比例阀或伺服阀的目的就是:以电控方式实现对流量的节流控制(当然经过结构上的改动也可实现压力控制等),既然是节流控制,就必然有能量损失,伺服阀和其它阀不同的是,它的能量损失更大一些,因为它需要一定的流量来维持前置级控制油路的工作伺服阀的主阀一般来说和换向阀一样是滑阀结构,只不过阀芯的换向不是靠电磁铁来推动,而是靠前置级阀输出的液压力来推动,这一点和电液换向阀比较相似,只不过电液换向阀的前置级阀是电磁换向阀,而伺服阀的前置级阀是动态特性比较好的喷嘴挡板阀或射流管阀。
也就是说,伺服阀的主阀是靠前置级阀的输出压力来控制的,而前置级阀的压力则来自于伺服阀的入口p,假如p口的压力不足,前置级阀就不能输出足够的压力来推动主阀芯动作。
D41FHE02B4NB00 D41FHE02B4NB0048
D91FHE01H1NB00 D91FHE01H1NB0048
D41FHB32B1NB00 D41FHB32B1NB0048
D41FHE52C1NB00 D41FHE52C1NB0048
D41FWB32FC2NLW0 D41FWB32FC2NLW026
D31FWE01CC4NXW0 D31FWE01CC4NXW026
D31FWA32CC4NLW0 D31FWA32CC4NLW026
D41FHB61C1NB00 D41FHB61C1NB0048
D41FHE52F5VB00 D41FHE52F5VB0048
D91FHE01H4NB00 D91FHE01H4NB0048
D31FWE01CC4NLW0 D31FWE01CC4NLW026
D46FHE01F2NB00 D46FHE01F2NB0048
D81FHE02F1NB00 D81FHE02F1NB0048
D31FHB61C5NB00 D31FHB61C5NB0048
D41FHB00F4NB0048X856
D111FHB32L1NB20 D111FHB32L1NB2048
D46FHE01B5NB00 D46FHE01B5NB0048
D31FHB32A4NE00 D31FHB32A4NE0047
DK-M8X1-15 DK-M8X1-15 DIN 906
派克比例换向阀D41FHE01E1NE00现货AK-WL06CKG092 AK-WL/RL06-C-K-G09-2
SK-D41FW SK-D41FW-10/20
D36FHE50B4NB00 D36FHE50B4NB0048
D91FHE01F1NE00 D91FHE01F1NE0048
D41FHE01E1NE00 D41FHE01E1NE0048
D91FHB63H2NB00 D91FHB63H2NB0048
D41FHB31E1NE00 D41FHB31E1NE0048
D41FHE01F4NE00 D41FHE01F4NE0048
D41FHB32F4NE08 D41FHB32F4NE0848
VS111-000 VS111-000-20
VS111-100 VS111-100-20
VS111-200 VS111-200-20
VS111-800 VS111-800-20
D31FWE01CC4NLW8 D31FWE01CC4NLW827
DK-M6X1-25 DK-M6X1-25 DIN 906
D39FWE01CC4V0 D39FWE01CC4V026
D31FSE02B4NLW0 D31FSE02B4NLW037
AK-D1FVSXW20 AK-D1FV-S-XW-20
SK-D31FHN SK-D31FHN30 K.-STAND 30/35-44
D31FWE01CC2NLW0 D31FWE01CC2NLW026
D41FSA31C1NLW0 D41FSA31C1NLW039
SK-D111FH SK-D111FH-N K-STAND 30-45
D41FHB32E1NB00 D41FHB32E1NB0048
D111FHB31L1NB00 D111FHB31L1NB0048
SK-D91FW SK-D91FW-10/20
AK-D1FWCKW20 AK-D1FW-C-KW-20
D31FWE04CC4NLW0 D31FWE04CC4NLW026
D91FHE02F1VB00 D91FHE02F1VB0048
SK-D81FHV SK-D81FH-V K-STAND 30-46
D91FHB32H5NB00 D91FHB32H5NB0048
D41FHE02C1NB00 D41FHE02C1NB0048
D41FWE01FC4NLW0 D41FWE01FC4NLW026
D91FWE01HC4NLW0 D91FWE01HC4NLW028
派克比例换向阀D41FHE01E1NE00现货
D31FSE01B4NLW0 D31FSE01B4NLW037
D41FSE01C4NLW0 D41FSE01C4NLW039
D91FSE01H4NLW0 D91FSE01H4NLW040
D111FSE01L4NLW0 D111FSE01L4NLW037
D91FHE52H4NB00 D91FHE52H4NB0048
D1FVE02BCVLB D1FVE02BCVLB35
D31FWE02CC4NLW0 D31FWE02CC4NLW026
D41FHE52E2NB00 D41FHE52E2NB0048
D91FWE01HC1NLW0 D91FWE01HC1NLW028
D41FWE02FC4NLW0 D41FWE02FC4NLW026
D91FHE02H4NB00 D91FHE02H4NB0048
D81FHE52H4NB00 D81FHE52H4NB0048
D81FSE01E4NLW0 D81FSE01E4NLW039
D41FSE02C4VXW0 D41FSE02C4VXW039
D41FTB00FC4NF0842X821
D31FWA31CC4NLW0 D31FWA31CC4NLW026
D31FWE02CC5NLW0 D31FWE02CC5NLW026
D41FHB34F2NB00 D41FHB34F2NB0048
D46FHE01F1NB00 D46FHE01F1NB0048
D41FHB61F1NB00 D41FHB61F1NB0048
D91FHE01H1NB20 D91FHE01H1NB2048
D41FSE02C1NLW0 D41FSE02C1NLW039
D31FWA32CC1NLW0 D31FWA32CC1NLW026
D41FSE01C2NXW0 D41FSE01C2NXW039
D31FSE02B4NXW0 D31FSE02B4NXW037
D41FSE02C1NXW0 D41FSE02C1NXW039
D111FSB32L2NXW0 D111FSB32L2NXW037
D41FSE02C4NXW0 D41FSE02C4NXW039
D91FSB32H2NXW0 D91FSB32H2NXW040