Bellows Flange

Bellows part: Bellows is an important part of bellows flanges, which has the ability of axial expansion and radial displacement, and can adapt to the thermal expansion and contraction of piping system.
Flange: The flange is the connecting part of the bellows flange, which usually has standardized connection size and shape. It is used to connect the bellows with other pipes or equipments and ensure the reliability and sealing of the connection.
Fastening devices: Bellows flanges usually use bolts, nuts and other fastening devices to connect the bellows to the flange. These fastening devices need to withstand a certain amount of tension and pressure to ensure the firmness of the connection.

1.Material: The material selection of bellows flange should be considered according to the working pressure, medium temperature, medium nature and other factors. Commonly used materials include stainless steel, carbon steel, alloy steel and so on. For high temperature, high pressure or corrosive media, high temperature resistant and corrosion resistant materials should be selected.
2.Selection: When selecting bellows flanges, the following factors need to be considered:
Working pressure: make sure the pressure-bearing capacity of the flange meets the requirements of the working pressure.
Medium temperature: choose the appropriate material and sealing form according to the medium temperature.
Medium nature: consider the corrosiveness and toxicity of the medium and choose the appropriate material and sealing gasket.
Connection mode: choose the appropriate connection mode according to the actual demand, such as bolt connection, welding connection, etc.

1.Installation: Before installing the bellows flange, it is necessary to check that the flange, bellows, fastening device and other components are intact.
Align the bellows with the flange and tighten them together using bolts and nuts. During the tightening process, ensure that the bolts are properly preloaded to avoid over-tightening or over-loosening which could result in poor sealing or damage to the flange.
Upon completion of the installation, a sealing test should be performed to ensure that there are no leaks at the flange connection.

Regularly check the bellows flange connection to ensure that the bolts are not loose or falling off.
If leakage is found at the flange connection, the sealing gasket should be replaced or the bolts should be tightened in time.
For bellows flanges that are subject to high temperature, high pressure or corrosive media for a long time, they should be inspected and maintained regularly to ensure their safe and reliable operation.