Ball Valve Distributor

We supply the five general body styles of ball valve bodies: single body, three piece body,split body, top entry, and welded.

There are three general types of ball valves according to bore in which Yuhuan Valve supplies:

• A full port ball valve or more commonly known full bore ball valve has an over sized ball so that the hole in the ball is the same size as the pipeline resulting in lower friction loss. Flow is unrestricted, but the valve is larger. This is not required for general industrial applications as all types of valves used in industry like gate valves, plug valves, butterfly valves, etc have restrictions across the flow and does not permit full flow.

• In reduced port ball valve or more commonly known reduced bore ball valve, flow through the valve is one pipe size smaller than the valve’s pipe size resulting in flow area becoming lesser than pipe.

• A V port ball valve has either a ‘v’ shaped ball valve or a ‘v’ shaped seat. This allows the orifice to be opened and closed in a more controlled manner with a closer to linear flow characteristic. When the valve is in the closed position and opening is commenced the small end of the ‘v’ is opened first allowing stable flow control during this stage.

• A trunnion ball valve has a mechanical means of anchoring the ball at the top and the bottom, this design is usually applied on larger and higher pressure valves (say, above 10 cm and 40 bars).

Manually operated ball valves can be closed quickly and thus there is a danger of water hammer. Some ball valves are equipped with an actuator that may be pneumatically or electrically operated. These valves can be used either for on/off or flow control.