Necked flat welding flange and loose sleeve flange are two different types of flanges, which have some differences in appearance and use. The following are the main distinguishing points between neck welding flanges and loose sleeve flanges:
Flange shape:
Flat welding flange with neck: This type of flange has a protruding neck, commonly referred to as the neck or neck of the flange. The diameter of the neck is usually smaller than the outer diameter of the flange. The presence of the neck makes the neck flat welding flange more secure when connecting pipes.
Loose flange: Loose flange has no neck, and its appearance is relatively flat without a protruding neck.
Purpose:
Necked flat welding flange: usually used in high-pressure, high-temperature, and pipeline systems with high requirements for flange connection strength. Due to the design of the neck, it can withstand greater pressure.
Loose flange: Generally used for low-pressure and general temperature applications, its design is relatively simple and suitable for some occasions with low requirements for connection strength.
Connection method:
Flat welding flange with neck: usually connected to the pipeline by welding the neck of the flange. Welding makes the connection more secure and suitable for high-pressure and high-temperature environments.
Loose flange: can be connected to the pipeline through bolts. The connection is relatively simple and suitable for some low-pressure and low-temperature situations.
Applicable pressure:
Flat welding flange with neck: Due to its structural design, flat welding flanges with neck are usually able to withstand high pressure.
Loose flange: generally suitable for lower pressure ranges.
In practical applications, the choice of neck welding flange or loose sleeve flange depends on the working conditions of the pipeline system, especially the pressure and temperature requirements. These factors need to be carefully considered to ensure that the selected flange type meets the requirements of the system.
Post time: Nov-21-2023
