JIS 5K 350A SOP FLANGE
Flat welding flange is a type of flange that is directly welded to equipment or pipelines through fillet welds. Simple structure and convenient processing. Its stress characteristics are between integral flanges and loop flanges. Flat welding flanges are divided into plate type and neck type. Flat welding flanges have low cost, short production cycle, and are the most commonly used flange type, widely used in various fluid pipelines.
The name "flat welding" in the name of flat welding flange represents the welding form of the flange, which is different from butt welding flange because the shape and size of the flange are different due to different welding forms, and the usage and pressure resistance are also different.
The sealing surface form of plate type flat welded steel pipe flange PL is divided into two types: raised face (RF) and full face (FF).
The sealing surface forms of SO with neck flat welded steel pipe flanges are divided into raised face (RF), raised and raised face (FM, M), tenon and groove face (T, G), and full face (FF).
