A105 blind plate BL flange is a common main square used to connect instrument with process equipment and pipeline. Due to many standards of flange, flange, complex sealing surface form, various pressure and temperature grades, and various materials and steels, it is more difficult to apply flange reasonably. The French and blue standards used in the instruments and equipment imported from abroad in China are all foreign standards, which further increases the complexity of the application of French and blue. In order to develop a comprehensive bill of materials, automatic control designers often spend a lot of time reading and comparing French and blue standards, looking for French and Chinese alternatives. Nevertheless, it is inevitable that errors will occur, and wrong temperature and pressure levels will lead to problems of principle. Installation of the instrument, France, blue, there is no way to match, resulting in waste. Therefore, the correct selection of flange is a necessary link in the selection of various instruments.
In order to select and apply A105 blind plate BL flange correctly and reasonably, we must grasp several key aspects, namely flange standard, flange standard number, the corresponding relationship between temperature and pressure, and the comparison of materials from different countries.
