Large-caliber flange is widely used

　　As a sealing and fastening connector, large-caliber flange are easy to install, flexible in position and long in service life. They are widely used in large containers in aerospace, petroleum, chemical and other fields.

　　The weld of 304 Stainless Steel Socket Large-Caliber Flange should be inspected by 100% ultrasonography or radiography. There should be no cracks on the surface of large-caliber flange or other large-caliber flange connection or strength reduction defects. When the working pressure of large-caliber flange with long diameter is equal to or greater than the maximum allowable working pressure specified in the standard of 0.8 times, the butt weld of large-caliber flange and circular pipe should be inspected by 100% X-ray photograph. This method of inspection should be implemented in accordance with the provisions of JB4730. Ultrasound inspection of large-caliber flange shows that is a qualified product and it is required for radiation. If the pressure vessel pattern where the large-caliber flange is located fails to meet the above requirements for the inspection of the vessel shell, it should be carried out according to the contract or the label in the pattern.

　　Large-caliber flange can be used in different ways, which has special meaning and significance in industry and plays an important role and value in the mechanical industry.