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往复泵介杆处是个关键密封部位。为此，提供了一种新型全浮动往复泵介杆密封装置，这种介杆密封装置在工作中可随介杆自动调整中心，使介杆油封中心线与介杆中心线始终保持一致。现场使用证明，这种介杆密封装置能有效地防止介杆油封的偏磨，从而可延长油封使用寿命，增强密封效果。
Reciprocating pump at the rod is a key sealing parts. For this purpose, a new full floating reciprocating pump medium rod sealing device is provided, which can automatically adjust the center of the medium along with the medium rod in operation so that the centerline of the medium oil rod seal and the center of the medium of the medium have the same consistency. Field use proved that this medium rod seal device can effectively prevent the partial wear of rod oil seal, which can extend the service life of the oil seal and enhance the sealing effect.