VICKERS方向控制阀DG5S-8-8C-2-E-VM-FTWL-B5-30
EATON-VICKERS方向控制阀DG5S-8-8C-2-E-VM-FTWL-B5-30
EATON-VICKERS方向控制阀DG5S-8-8C-2-E-VM-FTWL-B5-30
EATON-VICKERS方向控制阀DG5S-8-8C-2-E-VM-FTWL-B5-30
EATON-VICKERS方向控制阀DG5S-8-8C-2-E-VM-FTWL-B5-30
泉州市天益机电贸易有限公司()威格士授权经销,,泉州代理EATON-VICKERS
联系人:陈远(销售)
电话:,
传真:在线
网址:
邮件:qzty2008@
手机:
VICKERS方向控制阀性能换向时间定义为从先导阀电磁铁通电至主级阀芯走完其全行程的时间。对在 210 bar (3000 ps i) 系统压力下带有各种控制压力和阀芯的标准低冲击型和快响应型画出换向时间曲线。针对压力对中型画出压力对中时间曲线。还针对弹簧对中型列出大约的弹簧对中时间。换向动作弹簧对中型、压力对中型和弹簧偏置型阀连续通电以保持主阀芯在切换位置。无弹簧带定位型阀只需瞬时通电(约0.1 秒)。弹簧对中型、压力对中型当两个电磁铁都断电或者先导压力丧失或低于低要
求时,阀芯返回到中心位置。当电磁铁断电时,弹簧偏置型靠先导压力把阀芯
返回到偏置位置。当无弹簧带定位型断电时,只要无异常冲击,振动,压力瞬变以及阀芯轴线是水平的,那么主级和先导级就会保持在它们的终位置。如果先导压力丧失或低于低值,则主阀芯将弹簧对中(以弹簧对中流量率),但将不漂移到反向
所述的先导压力基于内控外泄型,其先导压力等于 P 油口的压力。对带有开式对中
阀芯的型式,通过在回油出口施加至少所需低先导压力的背压(如果是 0,1,9 或
11 型阀芯,此背压将出现在工作油口),或者通过使用在工作油口不引起额外压力
的内装单向阀(见内装单向阀注释),可以先导压力。通常,对于闭式对中阀
芯的内部先导压力是随时可用的。当对于闭式或开式中位型阀来说,需要来自单
压力源的先导压力时,则可在阀的外部设置连接口
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DG5V76N2TMUH540
DG5V76CMUH730
DG5V-7-31C-2-M-U-H5-40
DG5V-10-S-2C-2-M-U-B-10
DG5V-10-S-6C-T-M-U-H-10
DG5S-8-2B-M-U-H5-30DGMC-5-PT-FW-B-30
DG5V-8-S-6C-T-M-U-H-10
DGMDC-3-BYL-20
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