This type of ball valves is connected to the pipeline by screwing and pressing the valve flange to the pipe flange. Additionally, there is a sealing between the flanges which prevents medium leakage.
On the ends of the ball valve, one or more special bevel edges (chamfers) are made, where a matching piece of the pipe is connected by welding.
Ball valves with this connection type respectively have a thread which is screwed into the pipe.
Various combinations of the above-mentioned connection types are possible.
The actuating force for such ball valves is considerably lower.
It is applied for the nominal diameters of max. 250 mm, because the larger the diameter is, the stronger is the pressure put on the sealings by the ball. This obstructs the functioning of the ball valve.
The choice of ball valves requires profound technical knowledge from a design engineer/a user. Especially important is the knowledge of:
Ball valves are perfectly suitable for the application as shut-off valves because of their excellent sealing performance. The important and decisive factor in this case is the set of working parameters. You are welcome to ask us for further assistance – we are willing to share our competence!