The specifications and dimensions of stainless steel flanges mainly include diameter, pressure rating, and standards. The diameter of stainless steel flanges is usually marked in millimeters (mm), and common diameter specifications include DN10 DN15, DN20, DN25, DN32, DN40, DN50, DN65, DN80, DN100, DN125, DN150, DN200, DN250, DN300, DN350, DN400, DN450, DN500, DN600 Wait.
The standard dimensions of stainless steel flanges also include parameters such as outer diameter, aperture, and number of screw holes. The outer diameter usually comes in various specifications such as 1/2 inch to 48 inches, among which 1/2 inch to 24 inches are commonly used specifications, suitable for general engineering, while large-diameter flanges larger than 24 inches are suitable for special engineering and equipment. The aperture generally corresponds to the outer diameter, while the number and diameter of screw holes vary depending on the specifications and pressure rating of the flange.