Classification Standards For Flange Fittings

1.Stainless Steel Flange according to the manufacturing method, it can be divided into pushing, pressing, forging, casting, etc.

2. According to the manufacturing standard, it can be divided into national standard, electrical standard, ship standard, chemical standard, water standard, American standard, German standard, Japanese standard, Russian standard, etc.

3. According to its curvature radius: it can be divided into long radius elbow and short radius elbow. Long radius elbow means that its curvature radius is equal to 1.5 times the outer diameter of the pipe, that is, R=1.5D; short radius elbow means that its curvature radius is equal to the outer diameter of the pipe, that is, R=1.0D. (D is the diameter of the elbow, R is the radius of curvature).

4. If classified by pressure level: there are about seventeen types, which are the same as the American pipe standards, including: Sch5s, Sch10s, Sch10, Sch20, Sch30, Sch40s, STD, Sch40, Sch60, Sch80s, XS; Sch80, SCH100, Sch120, Sch140, Sch160, XXS; among which the most commonly used are STD and XS.