一个比例阀的问题

biancheng

现场一个比例阀4WRTE 25 V350L-4X/6EG24K31/A1M，样本里有一句话：With spool types E, E1, W6, W8 and Q2 the centering spring (9) positions the main spool (2) in the mid position, V and V1 spools are switched to the preferred direction of P to B and A to T within a tolernace band of 1% to a max. of11% of the spool stroke.

我的理解是：对于中位机能V和V1，如果没有给控制信号，那么实际上P到B和A到T是通油的，不知道对不对？

zhaozhihui

不是P到B和A到T全部流量吧？
5 I" z, r/ {+ b2 }  n找个中文样本看看就行了嘛！

zhaozhihui

经查，V and V1 spools are switched to the preferred direction of P to B and A to T within a tolernace band of 1% to a max. of11% of the spool stroke.
大致意思是：V and V1 阀芯切换到P to B and A to T的优选位置，阀芯在11%行程附近（1%公差带范围内）。

zhaozhihui

从力士乐中文版样本抓图：
& [9 ^* @6 i$ U% W, y

fnwwxl

简单的说就是阀的故障保险。