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Q6: Damaged stem and its mating thread,broken stem head and bent stem.

Q6: Damaged stem and its mating thread,broken stem head and bent stem.

2019-11-19

VALVES COMMON FAULTS AND TREATMENT


Reason:

1. Improper operation,excessive fore of the switch,malfunction of the limit device and no action of overtorque protection.

2. The thread is too loose or too tight.

3. Excessive operation times and long service life.


Processing:

1. Improve the operation and do not use too much force; Check the limit device and check the torque protectiong device.

2. Suitable material selection and assembly tolerance meet the requirements.

3. Replace spare parts.


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