To avoid wearing, stator is fitted with sealing ring and balancing sleeve etc. If worn out, they can be replaced by spare parts.

为防止定子磨损，定子上装有密封环、平衡套等，磨损后可用备件更换。

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Describes a sleeve type compensator-the self balancing compensator, which can be used in heating networks to eliminate the blind flange force on primary fixing trestles.

介绍了一种套筒型补偿器———自平衡补偿器，它可用在热力管网中消除主固定支架的盲板力。

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