What is the handwheel of the valve?
Gate valve, ball valve, control valve with a disk handwheelDo you know what is not said the number of valve handwheel?
The handle or round wheel that drives the valve switch
It's a kind of handle. The larger one is called the handwheel
A driving device that controls the opening or closing of a valve. A manually operated handle or handwheel is provided to control the valve switch