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Continue from where you left off kukuk
扭矩是径向力（不太准确的说），密封动环是靠弹簧的轴向力，两个说关联不大，只要注意机封安装时轴向活动顺畅，端面和轴垂直。就没有问题！
感觉启动扭矩影响并不大 容易对机封造成影响的应该是介质结晶和堵塞等问题
密封仓排气排液，防止气囊形成！启动前盘泵，防止动环粘结！
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