液压气动密封件—BA返回 >>
概   况型号参数

PARK-0-PAK®BA型是唇形密封进步发展的结果。它兼有高弹性O形圈和唇形密封材料耐磨性的优点。这种特殊的密封件因其特殊的结构(装配的O形圈),主要用于行走设备。这个O形圈保证了密封唇口在低压或真空条件下的预压缩量,这对密封性能是很必要的。密封力基本上与温度的变化无关, 并且即使发生某种程度的磨损也会保证必要的预压缩量。唇口由于系统压力的增加而负载,这种系统压力通过受压变形的O形圈传递至唇上。

这种密封件的主要优点是:

特别强的耐磨性。

对震动载荷和压力峰值的不敏感性。

很高的抗挤压性。

在无载和低温的条件下具有理想的密封作用。

适用于最苛刻的工作条件。

易于安装。

应用范围:

工作压力:350bar

工作温度:-35+80°C 峰值达+95°C

表面速度:≤0.5m/s

当选择某一直径用的密封件时,最好选择有最大可能横截面积的密封件。

主要用于密封柱塞、活塞杆、气钻、多级缸、锻压机以及行走设备用液压装备。对于以上所述及其它方面的应用,本公司可按用户要求提供技术咨询。

   装:

注意密封件有一个轴向间隙(参看表中 的HL栏)。为了避免在安装期间损坏密封唇口,不要将密封件在锐边上拉动。通常,这类密封件是装入闭式沟槽中的。对于极限直径和极限横截面的情况,当结构不许采用开式沟槽时,应使用安装辅助工具。

   料:

P5004是一种邵氏硬度A93的聚氨酯,O形圈材料N0674是邵氏硬度A约为70的丁腈橡胶。

如有特殊要求(压力、温度、速度等),请与本公司的咨询服务部联系, 他们会向您推荐合适的材料和结构。






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