In the process of use, if the switching torque increases, the reason might be there is foreign body between the butterfly plate and the rubber lining, or the rubber lining has been worn, at this time, should stop for inspection, cannot forced switch.
In the process of use, if the switching torque increases, the reason might be there is foreign body between the butterfly plate and the rubber lining, or the rubber lining has been worn, at this time, should stop for inspection, cannot forced switch.
使用过程中如果出现开关力矩变大，形成的原因可能是蝶板和胶套间卡有异物，或是胶套已破损，此时应停车检查，不可强行开关。