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DFS 型多路阀(实心杆)DFS Multi-channel Valve with Solid Spool
  DFS型多路阀是我公司2009年新开发的高压大流量换向阀。DFS型整体式多路阀针对满足我国装载机行业近代对泄漏和操纵力的新要求而设计,是DF型 整体式多路换向阀的换代产品。
  DFS multi-channel valve was developed by our company in 2009. It is designed according to the new requirement of internal leakage and control force in loaders industry. It is the replacement of DF integrated valve.
·优点:advantages:
1、操纵力小。由于DFS阀的阀杆直径小于同规格的 DF 阀阀杆直径,阀杆与阀孔之间的磨擦力减小,阀的操纵力小于同规格 DF 阀的操纵力。
2、内泄漏低。DFS多路阀采用实心阀杆设计,阀杆直径较小,刚度增强,阀杆与阀孔的配合间隙较小,多路阀的内泄漏小。
3消除阀杆带油现象。DFS阀采用了设计改进的防尘圈,消除了拉动阀杆时的带油问题。
4、压力损失小,中立位置压力损失< 0.4MPa ,换向压力损失< 1MPa ,都小于行业标准优等品指标。
5、转斗下转口设有大通径补油阀,补油性能好,有效的防止吸空现象的产生,可根据用户的需要配备。
6与 DF 阀相同的安装连接尺寸。为便于用户主机配套和维修服务,DFS阀与 DF 阀具有相同的安装连接尺寸。
1. Low control force. Because the spool diameter of DFS valve is smaller, the friction between spool and spool bore is reduced. So the control force is lower than DF valve.
2. Low Internal leak. DFS valve is adopted solid spool. The diameter of spool is smaller and the stiffness is increased. The clearance between spool andspool bore is smaller. So the internal leak is lower.
3. Eliminate oil out with spool. DFS valve is adopted improved dustproof ring and oil-out with spool is eliminated.
4. Small pressure loss. The pressure loss at the middle position is lower 0.4MPa and at the working position is lower 1MPa. These two indexes are better than the industrial standard.
5. Oil supply valve is added. It has good oil supply performance to avoid the suction phenomenon.
6. Mounting dimensions are same with DF valve. It is easy for mounting and maintenance.
·型号参数: Specifications
·公称压力 20MPa
·公称流量 250L/min
·主安全阀调压范围 8~20MPa
·过载阀调压范围 8~20MPa
·油液粘度范围 10~380mm2/s
·温度范围 -20~80℃
·油液清洁度等级不低于 GB/T14039-93 19/16 级或 NAS1683 10 级范围
·Rated pressure 20MPa
·Rated flow 250L /min
·Pressure range of safety valve 8~20MPa
·Pressure range of relief valve 8~20MPa
·Range of oil viscosity 10~380mm 2/s
·Range of oil temperature -20~80 ℃
·Grade of oil cleanliness is not lower than GB/T14038-92 19/16 or NAS1683 10
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地址:山东省青州市康屯社区(青州市益王府北路)