PVG128/256大流量阀在ADC 起重机的成功验证

  • 丹佛斯动力系统PVG家族新成员PVG128/256大流量阀已于2017年1月成功问世
    PVG128/256是一款负载敏感比例阀,沿袭了PVG系列片式阀组的结构,大大丰富了PVG系列的多样性和灵活性,填补了PVG系列在大流量应用领域的空白。

    基本概述:
    PVG128/256负载敏感比例多路阀:
    额定工作压力:350bar
    最大输出工作流量: 500L/min
    产品特征:

    • 低压差
    • 阀芯闭环控制
    • 低滞环
    • 超高精度 高抗污能力 
    • 节能

    为了验证PVG128/256,2016年在ADC(应用开发中心)汽车起重机上安装了该阀,做了大量测试,并邀请客户参观体验


     经过大量的测试和数据积累,PVG128/256给我们带来了前所未有的“视觉”冲击:

     

  • PVG128/256大流量阀在ADC 起重机的成功验证
  •  经过大量的测试和数据积累,PVG128/256给我们带来了前所未有的“视觉”冲击:

    1. 数字化控制的高比例特性和低滞环带给我们的是优越的操控性,具体表现:
      数字化控制:0-250控制信号对应10mm阀芯行程
    2. 良好的微动性:卷扬带载可以实现2分钟每转(远低于常规产品1.5分钟每转) 
      可以实时监控阀芯的控制报文和阀芯位置反馈报文波动范围±1(阀芯位移最大偏差不超过
    3. 复合动作时精确地流量分享效果 
      基于总线技术和高精度电控,可以实现前补偿比例阀在流量饱和状态下的流量分享:
    •  空载主副卷组合:主卷94L/min,副卷90L/min  
    • 带载主副卷组合:主卷84L/min,副卷98L/m  

    测试结果显示:无论是空载还是带载状态下,都能够实现复合动作。 

     

  • 根据客户的体验,此次ADC测试满足了客户对PVG128/256在以下几方面的期望:

    1. 流量饱和状态下的复合动作
    2. 组合动作时的回转优先
    3. 良好的微动特性
    4. 优越的操控性

    起重机之外,我们PVG128/256在正面吊、船用吊机、履带吊以及其他对控制精度要求较高的新兴领域等领域也有着广阔的天地,相信在不久的将来,PVG128/256将会成为一颗冉冉升起的新星。

     

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