Building water supply and drainage knowledge: function, form, installing parts of the pneumatic valve

the pneumatic valve is used to adjust the flow or pressure in the pipeline. Main line and the secondary pipe junction pneumatic valve standing in the secondary line. Continues the hydrant pipes to be installed on the pneumatic valve. Pneumatic valve, pneumatic valves, including gate Rising stem and the non-rising stem) And butterfly pneumatic valve two kinds.
adjustment function and general pneumatic valve of pneumatic valve is the same, can be used in medium and low pressure pipeline, such as water treatment structures and pumping station.