The connection method of Titanium Alloy Gr 2 Flanges is typically through bolting. Flanges are designed with bolt holes that allow them to be bolted together to create a secure and leak-tight joint. The specific connection method may vary depending on the flange type and application requirements. Here are some key points regarding the connection method:

1. Bolts: The flanges are aligned and connected using bolts that pass through the bolt holes. The number, size, and grade of bolts required will depend on the flange size and pressure rating.

2. Gaskets: Gaskets are placed between the flange faces to provide a seal and prevent leakage. The gasket material should be compatible with titanium and the fluid or gas being transported.

3. Bolt Tightening: The bolts are tightened to a specified torque using a torque wrench or other suitable tools.Proper bolt tightening is essential to achieve a secure and reliable connection.

4. Flange Types: There are different types of flanges, such as weld neck, slip-on, socket weld, and threaded flanges. Each type has its own specific connection method and requirements.

5. Flange Standards: Flanges are manufactured according to specific standards, such as ASME/ANSI B16.5 or DIN standards, which provide guidelines for bolt sizes, hole spacing, and torque values.

It is important to follow the recommended installation procedures and specifications provided by the flange manufacturer to ensure a proper and leak-free connection. Additionally, proper inspection and maintenance of the flange connections are essential to ensure their integrity and performance over time.