(1) Threaded connection valve: the valve body is provided with internal thread or external thread, which is connected with pipeline thread.
(2) Flange connected valve: the valve body is provided with a flange, which is connected with the pipe flange.
(3) Welding connection valve: the valve body is equipped with welding groove, which is welded with the pipeline.
(4) Clamp connected valve: the valve body is provided with a clamping opening, which is connected with the pipe clamp.
(5) Ferrule connection valve: it is connected with the pipeline by ferrule.
(6) Clamp connection valve: the valve and two end pipes are clamped together with bolts.
