ASME B16.5 Class 2500 RTJ flanges are the highest pressure-rated standard flanges available, engineered for the most extreme industrial environments. Utilizing a Ring Type Joint (RTJ) seal, they employ a metal-to-metal interface where a soft metallic ring is compressed into a trapezoidal groove. This design ensures leak-proof integrity under massive pressure and high thermal cycling. They are typically used in subsea manifolds, high-pressure hydrogen service, and critical petrochemical pipelines.
Technical attributes
Standard: ASME B16.5
Pressure Class: 2500 LBS
Flange Type: Weld Neck / Blind / Threaded
Facing Type: Ring Type Joint (RTJ)
Sealing Mechanism: Metal-to-Metal
Groove Profile: Trapezoidal (Standard)
Surface Finish: 63 RMS (1.6 Ra) Maximum
Size Range: NPS 1/2 to NPS 12
Material Grade: A105 / F316L / F51 / F91
Manufacturing: Forged and Machined
Gasket Series: R / RX / BX
Hardness Requirement: Gasket < Flange Hardness
Hydrostatic Test: 1.5x Pressure Rating
Carbon Content: Grade Dependent (A105 max 0.35%)
Yield Strength: Grade Dependent (F51 min 450 MPa)
Connection: High-Strength Stud Bolting
Service Temp: -196C to 815C (Grade Dependent)
Certification: EN 10204 3.1 / NACE MR0175
Contact: Jorge Yang
Phone: +86-13588258503
E-mail: sales@fluvalve.com
Whatsapp:+86-13588258503
Add: Room 331, South Building,Building 1, No.3 Jinpeng Street, Sandun Town, Xihu District, Hangzhou City, Zhejiang Province
