Flange Selection in Electric Heater Design
Flange selection in electric heater design, including flange selection basis, flange connection methods, types and functions of flange sealing faces.
I. Flange Selection Basis:
1.Nature of the conveyed medium: general medium, special medium, toxic medium, flammable and explosive medium;
2.According to the parameters of the medium, working pressure, working temperature, when the medium is determined, determine the nominal pressure PN of the flange based on the working temperature and working pressure of the medium.
3.According to the usage site and connection conditions, determine the connection method between the flange and the pipe and the sealing face type.
4.Determine the flange specification based on the connected object.
II. Flange Connection Methods:
Pipe flanges can be divided into five basic types according to the connection method with the pipe: flat welding flange, butt welding flange, threaded flange, socket welding flange, and loose flange.
There are various types of flange sealing faces, commonly used ones include raised face (RF), female face (FM), male and female face (MFM), tongue and groove face (TG), flat face (FF), and ring joint face (RJ).
The sealing face types of flanges are various, commonly used include raised face (RF), female face (FM), male and female face (MFM), tongue and groove face (TG), flat face (FF), and ring joint face (RJ).
