Product Introduction

Common large-diameter flanges include flat welding flanges and butt welding flanges. Threaded flanges do not have large diameters. In actual production and sales, the proportion of flat welding products is still higher. The structure and scope of use of flat welding large-diameter flanges and butt welding large-diameter flanges are different, and the characteristics and advantages they can display will also be different. Therefore, when using them, it is necessary to use them according to different scopes to ensure that the flanges play an important role. Large diameter flat welding flanges have poor rigidity and are suitable for situations with pressure p ≤ 4MPa; Welding flanges, also known as high neck flanges, have high rigidity and are suitable for applications with high pressure and temperature. There are three types of flange sealing surfaces: flat sealing surfaces, suitable for situations with low pressure and non-toxic media; Concave convex sealing surface, suitable for situations with slightly higher pressure; Mortise and tenon sealing surface, suitable for flammable, explosive, toxic media and high-pressure environments. Flange fittings with different properties have good product performance in different fields, and their effectiveness varies depending on the occasions and spaces they are suitable for.