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华德比例方向阀ZDR6DA7-30B/75YM

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品牌:北京华德
单价:850.00元/台
最小起订量:1 台
供货总量:200 台
发货期限:自买家付款之日起 3 天内发货
有效期至:长期有效
更新时间:2018-06-14 19:36
所属类别:机械设备 » 阀门 » 电磁阀
关键词:北京华德 
Mip版:华德比例方向阀ZDR6DA7-30B/75YM
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北京华德液压全系列 具体型号及报价请联系客服

北京华德换向阀部分型号如下:

4WE6C50B/BG24N        4WE6A50B/BG24N

4WE6C50B/BW220-50N 4WE6A50B/BW220-50N

4WE6C61B/CG12N9DKL 4WE6A61B/CG12N9DKL

4WE6C61B/CG12N9DL 4WE6A61B/CG12N9DL

4WE6C61B/CG12N9K4 4WE6A61B/CG12N9Z5

4WE6C61B/CG12N9Z5L 4WE6A61B/CG12N9Z5L

4WE6C61B/CG12NDKL 4WE6A61B/CG12NDKL

4WE6C61B/CG12NDL 4WE6A61B/CG12NDL

4WE6C61B/CG12NK4 4WE6A61B/CG12NK4

4WE6C61B/CG12NZ4 4WE6A61B/CG12NZ5L

4WE6C61B/CG24N9DKL 4WE6A61B/CG24N9DKL

4WE6C61B/CG24N9K4 4WE6A61B/CG24N9DL

4WE6C61B/CG24N9Z5L 4WE6A61B/CG24N9Z5

4WE6C61B/CG24NDKL 4WE6A61B/CG24N9Z5L

4WE6C61B/CG24NDL 4WE6A61B/CG24NDKL

4WE6C61B/CG24NK4 4WE6A61B/CG24NDL

4WE6C61B/CG24NZ4 4WE6A61B/CG24NK4

4WE6C61B/CW220-50N9DKL 4WE6A61B/CG24NZ5L

4WE6C61B/CW220-50N9DL 4WE6A61B/CW220-50N9DKL

4WE6C61B/CW220-50N9K4 4WE6A61B/CW220-50N9DL

4WE6C61B/CW220-50N9Z5L 4WE6A61B/CW220-50N9Z5

4WE6C61B/CW220-50NDKL 4WE6A61B/CW220-50N9Z5L

4WE6C61B/CW220-50NDL 4WE6A61B/CW220-50NDKL

4WE6C61B/CW220-50NK4 4WE6A61B/CW220-50NDL

4WE6C61B/CW220-50NZ4 4WE6A61B/CW220-50NK4

4WE6D50B/AG24N        4WE6A61B/CW220-50NZ5L   


北京华德液压全系列 具体型号及报价请联系客服

北京华德换向阀部分型号如下:

4WE6D50B/AW220-50N 4WE6B61B/CG12N9DL

4WE6D50B/BG24N        4WE6B61B/CG12N9K4

4WE6D50B/BW220-50N 4WE6B61B/CG12N9Z4

4WE6D61B/CG12N9DKL 4WE6B61B/CG12N9Z5

4WE6D61B/CG12N9DL 4WE6B61B/CG12N9Z5L

4WE6D61B/CG12N9K4 4WE6B61B/CG12NK4

4WE6D61B/CG12N9Z4 4WE6B61B/CG12NZ4

4WE6D61B/CG12N9Z5 4WE6B61B/CG12NZ5

4WE6D61B/CG12N9Z5L 4WE6B61B/CG12NZ5L

4WE6D61B/CG12NDKL 4WE6B61B/CG24N9DL

4WE6D61B/CG12NDL 4WE6B61B/CG24N9K4

4WE6D61B/CG12NK4 4WE6B61B/CG24N9Z4

4WE6D61B/CG12NZ4 4WE6B61B/CG24N9Z5

4WE6D61B/CG12NZ5 4WE6B61B/CG24N9Z5L

4WE6D61B/CG12NZ5L 4WE6B61B/CG24NK4

4WE6D61B/CG24N9DKL 4WE6B61B/CG24NZ4

4WE6D61B/CG24N9DL 4WE6B61B/CG24NZ5

4WE6D61B/CG24N9K4 4WE6B61B/CG24NZ5L

4WE6D61B/CG24N9Z4 4WE6B61B/CW220-50N9DL

4WE6D61B/CG24N9Z5 4WE6B61B/CW220-50N9K4

4WE6D61B/CG24N9Z5L 4WE6B61B/CW220-50N9Z4

4WE6D61B/CG24NDKL 4WE6B61B/CW220-50N9Z5

4WE6D61B/CG24NDL 4WE6B61B/CW220-50N9Z5L

4WE6D61B/CG24NK4 4WE6B61B/CW220-50NK4

4WE6D61B/CG24NZ4 4WE6B61B/CW220-50NZ4

4WE6D61B/CG24NZ5 4WE6B61B/CW220-50NZ5

4WE6D61B/CG24NZ5L 4WE6B61B/CW220-50NZ5L

4WE6D61B/CW220-50N9DKL 4WE6C50B/AG24N

4WE6D61B/CW220-50N9DL 4WE6C50B/AW220-50N




用先导式的, 专业解答: 减压阀的作用是控制阀后的压力稳定, 需要有一个参考压力来控制这个压力. 当阀后压力大于参考压力, 阀芯趋于闭合, 通孔变小, 反之阀后压力小于参考压力, 阀芯趋于打开, 通孔变大. 为了保持稳定的压力, 流量变化的时候通孔大小必须改变. 先导和直接作用的区别: 前者又弹簧提供这个参考压力, 后者由气腔提供参考压力. 无论是弹簧还是气腔, 通孔大小改变的同时参考压力本身也会变化. 因为它们和阀芯是连在一起的. 对于弹簧来说, 变长或变短之后给出的参考压力变化而没有补偿. 对于气腔来说, 变大或变小之后, 仍然有先导阀来保证参考压力稳定. 对于并联阀组, 用先导式的可以使用同一个先导阀, 这样便于保证阀组中每个阀均匀发挥作用.