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上海今纬液压设备有限公司 
| 联系人：朱传松 先生 (经理) |
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| 电 话：021-33519461 |
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| 手 机：18221357527 |
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| 派克比例阀*比例阀原理*叠加式比例阀*上海今纬 |
D*FW、D*FB系列直动式换向阀
D*FW/D*FB系列直动式换向阀是一种用于流量控制的比例阀。
D*FW系列采用PWD-400/PCD-400功率放大器进行电控；
D*FB系列采用集成的电子元件插装在阀上组成一体。
该阀共有6通径、10通径两种规格。应用于通过调节斜坡信号可使阀芯柔和换向，以此来减小液压冲击和机械冲击，通过电气方式调节流量/速度可实现机械功能自动化。
特点：
泄漏量小；
渐进的流量特性使的流量调节灵敏；
弹簧对中的阀芯；
D*FB系列带有集成的功率放大器；
D*FW系列带有数字式Snap-On功率放大器；
应急手动操纵。
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