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磁性流体密封为设计者们提供了一种结构，这种结构的密封表面线速度至少可达到３０米／秒，而密封表面处无磨损，无泄漏。然而，许多潜在的用户对这种密封结构的性能尚存在疑虑。 本文介绍研制和试验直径为１３０ｍｍ，转速至少为６７赫芝密封结构的经验。研制工作尚未完成，但１４０ＫＮ／ｍ２的压差肯定可以封住，其功率损耗在转速为５０赫芝的情况下是７２５瓦。磁性流体置于转子和定子之间的０．１ｍｍ间隙中，在密封表面处无机械接触。
Magnetic fluid seals provide the designer with a structure that has a seal surface line speed of at least 30 m / s and no wear on the seal surface for leaks. However, many potential users have doubts about the performance of such a sealed structure. This article describes the experience of developing and testing a seal with a diameter of 130 mm and a rotational speed of at least 67 Hertz. Development work has not yet been completed, but the pressure difference of 140KN / m2 can certainly be sealed, the power loss at the speed of 50 Hertz is 725 watts. The magnetic fluid is placed in a 0.1 mm gap between the rotor and the stator without mechanical contact at the sealing surface.