Large diameter flange

Large diameter flange is one of the flange, in mechanical industry, chemical industry, wind power industry, widely used in the water and wastewater industry and the promotion, users get the praise and favor, large diameter flange of the wide range of USES, production process is divided into rolling and forging, big can only be made up.

Common flange and butt welding flange of large caliber flange. In the actual production and sale, it is the proportion of flat welding products. Flat welding of large diameter flange and butt welding of large diameter flange structure and use of the range is different, can show the characteristics and advantages of also will be different, so when use should be used according to different range, ensure the flange play an important role. The steel of large diameter flat welding flange is poor, and it is suitable for the situation where pressure p is not equal to 4MPa. The welding flange is also known as high neck flange, which is rigid and suitable for high pressure temperature occasions. There are three types of flange sealing cover: the plane type sealing cover, which is suitable for the situation where the pressure is not high and the medium is non-toxic. Embossed cover, suitable for slightly higher pressure situations; The sealing surface of the tenon groove is suitable for inflammable, explosive, toxic media and high pressure occasions. Different types of flanged fittings have good product performance in different fields, and different situations and space can produce different effects.

The weight calculation method of this section

Theoretical calculation formula of large diameter flange (carbon steel) :

1. First use (d-b) over 2 = N.

2. Reuse (d-n) * N * 0.0246615 * C * 0.001

(note: D means outer diameter, B means inner diameter, N means flange unilateral width, C is thickness)

After two steps above, the theoretical weight of flange is obtained.

For example, the outer diameter is 2800mm, the inner diameter is 2600mm, and the thickness is 60mm of carbon steel flange

1. (2800-2600) /2=100mm

2, (2800-100) x100x0. 0246615 x0. 6 = 399.5163 KG

(note: the stainless steel flanges only change the 0.0246615 above to 0.02491.)