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A Ring Type Joint (RTJ) Flange is a specialized flange designed with a metallic ring groove that holds a precise metal ring gasket to create a high-integrity, leak-proof seal. This design is ideal for high-pressure, high-temperature, and corrosive environments where conventional gasket materials may fail.
Manufactured from carbon steel, stainless steel, and alloy materials, RTJ flanges provide exceptional mechanical strength and corrosion resistance. The metal-to-metal sealing mechanism ensures tight sealing under extreme conditions, making them the preferred choice in critical applications such as oil & gas, petrochemical, and refining industries.
Available in various pressure classes including Class 150, 300, 600, and higher, RTJ flanges conform to standards like ASME B16.5 and MSS-SP-44. Their precise machining and groove dimensions ensure reliable and repeatable sealing performance in demanding pipeline systems.
| Specification | Details |
|---|---|
| Product | Ring Type Joint (RTJ) Flanges |
| Size Range | 1/2" to 48" (DN15 to DN1200) – Custom sizes available |
| Pressure Ratings | Class 150, 300, 600, 900, 1500, 2500 (As per ASME B16.5) |
| Face Type | Ring Type Joint (RTJ) Metal-Seated Face |
| Standards | ASME B16.5, ASME B16.47, ASTM A105, ASTM A182, MSS-SP-44, API 6A, ISO 9001, EN 1092-1 (on request) |
| Material Grades |
Carbon Steel: ASTM A105, A350 LF2 Stainless Steel: 304, 304L, 316, 316L Alloy Steel: ASTM A182 F1, F11, F22 Duplex Steel: UNS S31803, S32205 Nickel Alloys: Inconel 600/625, Monel 400, Hastelloy C276 |
| Manufacturing Process | Forged, Heat Treated, Precision Machined |
| Ends | Raised Face (RF) with Metal Ring Groove for RTJ Gasket |
| Surface Finish | Black Painted, Pickled, Sand Blasted, Polished, Anti-Rust Coated |
| Testing & Certification | Hydrostatic Test, NDT (UT, RT, MT), PMI, Hardness Test, TPI Inspection, Mill Test Certificates (EN 10204 3.1 / 3.2) |
| Applications | Oil & Gas, Petrochemical, Refining, Power Plants, High-Pressure Steam Systems, Offshore Platforms, Chemical Processing |
| Special Features | Metal-to-Metal Seal, High-Pressure & High-Temperature Resistant, Leak-Proof Under Extreme Conditions, Corrosion Resistant, Suitable for Critical Services |
| RTJ Flange Design Features |
Metal Ring Groove: Precisely machined groove to hold RTJ gasket for a reliable metal-to-metal seal. High Integrity Seal: Designed to withstand extreme pressure and temperature without leakage. Forged Construction: Provides excellent mechanical strength and durability. Standards Compliant: Manufactured per ASME, ASTM, API, MSS-SP, and ISO standards. Precision Machined Face: Ensures perfect gasket seating and repeatable sealing performance. |
Our Ring Type Joint (RTJ) Flanges are designed for high-pressure, high-temperature sealing in critical piping systems. Engineered for metal-to-metal sealing, they ensure exceptional leak-tight performance under extreme conditions.
RTJ flanges utilize a precisely machined metal ring groove and a corresponding metal gasket to create a reliable, leak-proof seal under high pressure and temperature.
Forged construction and precision machining make RTJ flanges suitable for extreme pressure and temperature environments, common in oil & gas and petrochemical industries.
Available in carbon steel, stainless steel, and alloy steels, RTJ flanges offer excellent corrosion resistance and durability in harsh environments.
Manufactured according to ASME B16.5, API 6A, MSS-SP-44, and ASTM standards, ensuring dimensional accuracy and global compatibility.
The ring groove and flange face are precision machined to ensure perfect gasket fitment and repeatable sealing performance.
Ideal for oil & gas, refining, power generation, offshore platforms, and other high-pressure, high-temperature services.