The main functions of flange bolts include fixation, sealing, and support. Specifically:

Fixed function: The flange bolt firmly fixes two flange plates together by tightening the bolt, ensuring that the pipeline and equipment can be securely connected.

Sealing function: Install a gasket between the flange and the gasket, and use bolt tightening to deform the gasket, thereby achieving the purpose of sealing and preventing air or liquid leakage.

Supporting function: Flange bolts can play a role in supporting pipelines and equipment, preventing vibration and displacement of pipelines and equipment.