Specializing in the production of 15Crmo Ⅲ flange

Special-shaped flange as sealing and fastening parts, also known as special-shaped flange. It is widely used in aerospace, petroleum, chemical and other fields of large containers. Although do not consider the problem of processing capacity, for the special-shaped flange, due to its size is too large, only because of transportation reasons, it is impossible to make the overall processing of special-shaped flange, must be split processing.

Features:

Under normal circumstances, the special flange is always divided into several arcs for processing. First, the blank is forged into square billets, then cold bent into arcs, after annealing de-stress heat treatment, formed into a full circle, processed in the vertical car to the designed shape and size, and finally transported to the construction site, and then several arcs are welded into a complete special-shaped flange and welded with the pressure vessel.

Because the nominal diameter of the container cylinder and the nominal diameter of the pipe represent different specific sizes, so, the same nominal diameter of the container flange and pipe flange, their sizes are not the same, they can not be used for each other.

Standard:

Special flange production and implementation standards: NATIONAL standard, American standard, Japanese standard, German standard, Italian standard, chemical ministry standard, machinery Ministry standard, pressure vessel standard.

The pressure class, material and standard of special-shaped flange have different characteristics and characteristics, according to a certain principle and way and method of use in use, can be produced and processed in accordance with the corresponding standards, to ensure good use value and effect in use. Flange pressure Class: 0.6mpa ~32Mpa(150Lb~2500Lb)

The special type flange has the different production standard in the use and the production, according to the corresponding standard production and the use, can guarantee the special type flange in the actual use value and the function.