Copper valve product classification and selection principles


Copper valve product classification and selection princ […]

Copper valve product classification and selection principles

Copper gate valve: A gate valve is a valve that moves the closing member (gate) in the vertical direction of the channel axis. It is mainly used as a cutting medium in the pipeline, that is, fully open or fully closed.

Copper ball valve: It is evolved from the plug valve. Its opening and closing member is a sphere, which is opened and closed by rotating the ball 90° around the axis of the valve stem.

Copper shut-off valve: A valve that moves the closing member (valve) along the centerline of the seat. Depending on the form of movement of the flap, the change in the seat opening is proportional to the flap travel.

Copper check valve: A valve that automatically opens and closes the valve by means of the flow of the medium itself to prevent backflow of the medium.

Selection principle

According to the selection of control functions, all kinds of valves have their own functions, and should pay attention to their corresponding functions when selecting.

According to the working conditions, the technical parameters of the commonly used valves include the work pressure, the maximum allowable working pressure, the working temperature (minimum and maximum temperature) and the medium (corrosiveness, flammability). When selecting, the above parameters of the working condition and the valve should be noted. The technical parameters are consistent.

According to the installation structure. The installation structure of the pipeline system includes pipe threads, flanges, ferrules, welding, hoses, etc. Therefore, the installation structure of the valve must be consistent with the installation structure of the pipe, and the specifications must be consistent.

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