DBW10A-1-50B/3156BG24N9Z4华德溢流阀DBW10B-1-50B/315X6CG24N9Z4 调节阀
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北京华德减压阀DZ10-1-30B/210YM 调节阀
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面议北京华德先导式减压阀DR5DP2-10B/75Y 调节阀
面议北京华德先导式减压阀DR10-3-30B/100M 调节阀
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面议*北京华德4WE6H50B/BW220-50N换向阀 调节阀
面议北京华德换向阀4WE6Y61B/CW220-50NDL 调节阀
面议北京华德换向阀4WE6F61B/CG12NDKL 调节阀
面议华德换向阀4WE6U61B/CG24N9Z5厂家供货 调节阀
面议华德溢流阀DBW10B-1-50B/315X6CG24N9Z4
华德溢流阀DBW10B-1-50B/315X6CG24N9Z4
追朔电磁阀的发展史,到目前为止,国内外的电磁阀从原理上分为三大类(即:直动式、分步童先导式),而从阀瓣结构和材料上的不同与原理上的区别又分为六个分支小类(直动膜片结构、分步重片结构、先导膜式结构、直动活塞结构、分步直动活塞结构、先导活塞结构)。
原理:通电时,电磁线圈产生电磁力把关闭件从阀座上提起,阀门打开;断电时,电磁力消失,弹簧把关闭件压在阀座上,阀门关闭。
特点:在真空、负压、零压时能正常工作,但通径一般不超过25mm。
原理: 它是一种直动和先导式相结合的原理,当入口与出口没有压差时,通电后,电磁力直接把先导小阀和主阀关闭件依次向上提起,阀门打开。当入口与出口达到启动压差时,通电后,电磁力先导小阀,主阀下腔压力上升,上腔压力下降,从而利用压差把主阀向上推开;断电时,先导阀利用弹簧力或介质压力推动关闭件,向下移动,使阀门关闭。
特点: 在零压差或真空、高压时亦能可靠动作,但功率较大,要求必须水平安装。
原理:通电时,电磁力把先导孔打开,上腔室压力迅速下降,在关闭件周围形成上低下高的压差,流体压力推动关闭件向上移动,阀门打开;断电时,弹簧力把先导孔关闭,入口压力通过旁通孔迅速腔室在关阀件周围形成下低上高的压差,流体压力推动关闭件向下移动,关闭阀门。
特点: 流体压力范围上限较高,可任意安装(需定制)但必须满足流体压差条件。
北京华德液压全系列 具体型号及报价请联系客服
北京华德先导式溢流阀部分型号:
DB20A-2-30B/50 DB30-1-50B/100
DB20A-2-30B/50X DB30-1-50B/200
DB20A-2-30B/50XY DB30-1-50B/315
DB20A-2-30B/50Y DB30-1-50B/50
DB20A-3-30B/100 DB30-2-30B/100
DB20A-3-30B/100X DB30-2-30B/200
DB20A-3-30B/100XY DB30-2-30B/315
DB30B-1-30B/200Y DB30-2-30B/50
DB30B-1-30B/315 DB30-2-50B/100
DB30B-1-30B/315X DB30-2-50B/200
DB30B-1-30B/315XY DB30-2-50B/315
DB30B-1-30B/315Y DB30-2-50B/50
DB30B-1-30B/50 DB30A-1-30B/200
DB30B-1-30B/50X DB30A-1-30B/200X
DB30B-1-30B/50XY DB30A-1-30B/200XY
DB30B-1-30B/50Y DB30A-1-30B/200Y
DB30B-3-30B/100 DB30A-1-30B/315
DB30B-3-30B/100X DB30A-1-30B/315X
DB30B-3-30B/100XY DB30A-1-30B/315XY
DB30B-3-30B/100Y DB30A-1-30B/315Y
DB30B-3-30B/200 DB30AG-2-50B/100
DB30B-3-30B/200X DB30AG-2-50B/100X
DB30B-3-30B/200XY DB30AG-2-50B/100XY
北京华德液压全系列 具体型号及报价请联系客服
北京华德先导式溢流阀部分型号:
DB30B-3-30B/200Y DB30AG-2-50B/100Y
DB30B-3-30B/315 DB30AG-2-50B/200
DB30B-3-30B/315X DB30AG-2-50B/200X
DB30B-3-30B/315XY DB30AG-2-50B/200XY
DB30B-3-30B/315Y DB30AG-2-50B/200Y
DB30B-3-30B/50 DB30AG-2-50B/315
DB30B-3-30B/50X DB30AG-2-50B/315X
DB30B-3-30B/50XY DB30AG-2-50B/315XY
DB30B-3-30B/50Y DB30AG-2-50B/315Y
DB30G-1-30B/100 DB30AG-2-50B/50
DB30G-1-30B/200 DB30AG-2-50B/50X
DB30G-1-30B/315 DB30AG-2-50B/50XY
DB30G-1-30B/50 DB30AG-2-50B/50Y
DB30G-1-50B/100 DB30B-1-30B/100
DB30G-1-50B/200 DB30B-1-30B/100X
DB30G-1-50B/315 DB30B-1-30B/100XY
DB30G-1-50B/50 DB30B-1-30B/100Y
DB30G-2-30B/100 DB30B-1-30B/200
DB30G-2-30B/200 DB30B-1-30B/200X
DB30G-2-30B/315 DB30B-1-30B/200XY
DB30G-2-30B/50 DB30B-1-30B/200Y
DB30G-2-50B/100 DB30B-1-30B/315
DB30G-2-50B/200 DB30B-1-30B/315X
DB30G-2-50B/315 DB30B-1-30B/315XY
DB30G-2-50B/50 DB30B-1-30B/315Y