ASME B16.5 BLRF Gr2 Gr5 Titanium Blind Flange Class 150 Raised Face For Piping Lines

ASME B16.5 BLRF Gr2 Gr5 Titanium Blind Flange Class 150 Raised Face

ASME B16.5 is a standard for Pipe Flanges and Flanged Fittings, and the BLRF (Blind Flange Raised Face) refers to a type of blind flange that features a raised face designed for sealing applications. The Gr2 (Grade 2) and Gr5 (Grade 5) refer to specific grades of titanium alloy commonly used for flanges.

• Grade 2 Titanium (Gr2) is commercially pure titanium, which offers excellent corrosion resistance and moderate strength.
• Grade 5 Titanium (Gr5) is an alloy of titanium with aluminum (6%) and vanadium (4%), offering higher strength than Gr2 and still maintaining excellent corrosion resistance.
• Class 150 refers to the pressure rating of the flange, suitable for piping systems with pressures up to 150 psi at ambient temperatures.

Features and Applications

• Corrosion Resistance: Both Gr2 and Gr5 titanium alloys are known for their exceptional resistance to corrosion, particularly in highly aggressive environments such as seawater, chemicals, and acids.
• High Strength-to-Weight Ratio: Gr5 titanium alloy provides higher strength compared to Gr2, making it ideal for applications requiring both lightweight and high strength.
• Pressure Rating: Class 150 ensures a reliable performance at low-to-medium pressure conditions.
• Sealing: The raised face on the flange provides a better sealing surface when used with gaskets in piping systems.

Material Grades Comparison

ASME B16.5 Class 150 Pressure Rating

Blind Flange Applications for Piping Lines

Summary

• ASME B16.5 Class 150 BLRF Gr2 and Gr5 Titanium Blind Flanges are designed for piping systems that require sealing and corrosion resistance, specifically in environments such as marine, chemical processing, and oil & gas.
• Gr2 Titanium is ideal for applications where moderate strength and excellent corrosion resistance are needed.
• Gr5 Titanium provides higher strength and is used in more demanding applications.