1. Leave the position for the valve handle to rotate.
2. Cannot be used as throttling.
3 Ball valve with transmission mechanism should be installed upright.
The working principle of the three-piece flange ball valve is to rotate the valve to unblock or block the valve. Ball valve switch light, small size, can be made into a large diameter, reliable sealing, simple structure, convenient maintenance, sealing surface and the sphere is often closed, not easy to be washed out by the medium, has been widely used in various industries.