一种是开关控制:要么全开、要么全关,流量要么zui大、要么zui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。
rd29904系列博士力士乐boschrexroth比例阀3WE6B6X/EG24N9K4
4WE6H6X/EG24N9K4
4WEH16J72/6SG24N9ETK4/B10
4WE6J60/SG24N9K4/B10
4WE10D33/CG220N9K4DC220V
4WEH16D-6X/6AW220NETZ5
4WE10G3X/CG24N9K4
4WE10J31/CG24N9
3WE6B6X/EG24N9K4
4WE6H6X/EG24N9K4
4WE6C62/EG24N9K4+B10
4WE6J62/EG24N9K4+B10
4WE6D62/EG24N9K4+B10
4WE6C6X/EG24N9K4
4WE6JA62/EW110N9K4
4WE10D33/CW230N9K4
4WE6D62/EG24N9K4/B10
4WE6Y62/EW230N9K4
4WEH16J72/6HG24N9ETK4/B10
4WE6J60/SG24N9K4/B10
4WE6E6X/EW230N9K4
4WE6Y61/EW220N9K4/V
4WE6D62/EG110N9K4/V
5-4WE10M18B32/CG24N9K4
4WE6H62/EG24N9K4
4WE6D6X/EG24N9K4
4WE10J3X/CG24N9K4
4WE6D70/HG24N9K4
4WE6H70/HG24N9K4
4WE6J70/HG24N9K4
4WE10G3X/CG24N9K4
4WE10J31/CG24N9Z5L+自己配Z5L插头
R900561274 4WE6D6X/EG24N9K4
4WE6M6x/EG24N9K4
4WE10L31/CG24N9K4
4WE6H6X/EG24N9K4
4WEH16D50/6AG24NETS2Z4
4WE6Y51/AG24NZ4/B08
4WE10J11/LG24NZ4
4WE10D20/AG24NZ5L
4WE10D11/LG24NZ4
4WE6D61/EG24N9K4QMAG24/B08
3WEH103X/LG24
4WE6DX/EG24N9K4
4WE10J3X/CG24N
4WE6Y61/EG24N9K4
4WE6D62/EW230N9K4
4WE10D33/CW230N9K4
4WE10J33/CW230N9K4
4WE10Y33/CG24N9K4
4WE6D62/OFEG24N9K4
4WE10D33/OFCG24N9K4
4WE6J60/SG24N9K4
4WE6JA60/SG24N9K4
4WE6Y6X/EW230N9K4
4WE6Y6X/EW220N9K4
4WE10J3X/CG24N9K4+Z4
4WEH22J7X/6EG24N9ETK4+Z4
4WEH16J7X/6EG24N9ETK4+Z4
4WE6E62/EG24N9K4
4WE6C50/AG24NZ4
LFA32WEB-70/
4WE6E6X/EG24N9K4
4WE10D3X/CG24N9K4
4WEH16J-7X/6EG24N9ES2K4
4WE6D6X/EG24N9K4
4WEH16J7X/6EG24N9ETK4
4WE10J3X/CG24N9K4
H-4WEH25Y50/6AG24ETZ5
4WEH10J20/AG24NZ5
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4WE10EA31/EG24NZ5L
4WE10E3/EG24NZ5L
4WE6E6X/EG24NZ5L
4WE6D6X/EG24NZ5L
4WE6C62/EG24N9K4
4WE6D70/HG24N9K4
4WE6D62/OFEW230N9K4
4WE6D6X/EG24N9K4
4WE6Y6X/EG24N9K4
4WE6E70/HG24N9K4
4WE6D62/EW230N9K4
4WE10G33/CG24N9K4
4WE10D3X/OFCG220N9K4
4WE6C6X/EG24N9K4/B12
4WE6C6X/EG24N9K4/B10
4WE6E6X/EG24N9K4
4WE6C6X/EG24N9K4
4WE6J62/EG24N9K4
4WE6D62/EW230N9K4
4WE10J33/CG24N9K4 线圈
4WE6D70/HG24N9K4
4WE6D62/EG24N9K4
4WE10D3X/CG24N9K4
3WE6B6X/EG24N9K4 (6A/EG改装)
3WE6A6X/EG24N9K4