The essential difference between elbow and elbow is mainly the difference between “head” and “pipe”. In addition, there are also great differences in manufacturing technology.

Threaded flange refers to a kind of flange that uses threads to connect with pipes. In design, it can be treated as loose flange. The

1. Before daily maintenance and installation of stainless steel valves, carefully check whether the model and specification of the valves used are consistent with the

1、 Why can’t the double seal valve be used as a shut-off valve?   The advantage of the two seat valve core is the force

(1) Threaded connection valve: the valve body is provided with internal thread or external thread, which is connected with pipeline thread.   (2) Flange connected

Definition: a device used to control the direction, pressure and flow of fluid in a fluid system. The valve is a device that makes the