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Question:

How is the hand (knob) of the hand operated ball valve connected to the valve stem?

How is the hand (knob) of the hand operated ball valve connected to the valve stem?

Answer:

See the end of the valve at the end of a positioning pin, so that the handle is not easy to fall off.
Jul 19, 2017
Normally, there is no such thing. Because it is easy to rust for a long time.Do not use valve repair (can not be removed)
Jul 19, 2017
Cube column, hand wrench, that is, if you slip out, then point pressure
Jul 19, 2017

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