Firstly, the chemical stability of fluorine valve makes the non pneumatic ball valve have excellent service performance. Some foreign manufacturers of non pneumatic ball valve even clearly point out in the data of non pneumatic ball valve that fluorine valve can only be used to make the expansion joint of non pneumatic ball valve when the medium of power plant contains S02., S03, etc. We provide a large number of non pneumatic ball valves for the power industry. Practice has proved that the expansion joint of non pneumatic ball valves is suitable for use in power plants.
The pneumatic ball valve will encounter different installation environments during installation. These external factors have certain requirements for the layout and laying of the pneumatic ball valve. In order to reduce unnecessary troubles in the layout and laying of the pneumatic ball valve, the following explains the aspects that should be paid attention to in the layout and laying of the pneumatic ball valve.
(1) As soil is a good thermal insulation material, the deeper the buried pipe is, the higher the shell temperature and soil temperature field will be. Therefore, shallow burial is favorable for direct burial of steam pipes.
(2) In order to ensure the reliability of the compensation link, the design span should not be more than 100m, and the compensation amount should not be more than 200m, but the design span should not be too small to avoid increasing the pipeline investment. In addition, the fixed support and pneumatic ball valve are weak links, and poor treatment will affect the service life of the entire pipeline. In addition, pneumatic ball valve or fixed support shall be set at the change of diameter and pipe wall thickness, and the fixed support shall be set at the side with larger pipe wall thickness.