Top-Grade Ring Type Joint Flanges Manufacturer & Supplier in India
Ring Type Joint (RTJ) Flanges are specially designed for high-pressure and high-temperature applications where leak-proof connections are critical. These flanges use a metallic ring that sits in a machined groove on the flange face and compresses into it during bolt tightening, ensuring a secure, metal-to-metal seal. This design makes RTJ flanges highly reliable in extreme environments where gasket failure is unacceptable.
At Vardhman Steel Overseas, we offer precision-engineered RTJ Flanges in compliance with ANSI, ASME, DIN, BS, and AWWA standards. Manufactured from premium-grade materials, our flanges are ideal for refineries, offshore drilling platforms, chemical plants, and high-temperature pipelines. Available in a wide range of sizes from ½” to 48” and pressure classes ranging from 150# to 2500#, our RTJ flanges deliver unmatched sealing performance.
Ring Type Joint Flanges are widely used in applications involving aggressive media, critical service fluids, and cyclic temperature conditions. They provide superior resistance to blowouts, making them the preferred choice in oil & gas, petrochemical, power generation, and marine industries.
Choose Vardhman Steel Overseas for corrosion-resistant, dimensionally accurate Ring Type Joint Flanges that meet stringent global standards and deliver long-term reliability in demanding industrial environments.
Available Materials & Grades
We manufacture and supply RTJ Flanges in a wide array of material grades to meet specific industrial demands and operating conditions.
| Material | Specifications / Grades |
|---|---|
| Stainless Steel | ASTM A182, A240 – F304, 304L, 304H, 316, 316L, 316Ti, 310, 310S, 321, 321H, 317, 347, 347H, 904L |
| Duplex & Super Duplex Steel | ASTM/ASME A/SA182 – F44, F45, F51, F53, F55, F60, F61 |
| Carbon Steel | ASTM/ASME A/SA105, A350, A181 LF2, A516 Gr.70, A36, A694 – F42, F46, F52, F60, F65, F706 |
| Low Temperature Carbon Steel | ASTM A350 – LF2, LF3 |
| Alloy Steel | ASTM/ASME A/SA182 & A387 – F1, F5, F9, F11, F12, F22, F91 |
| Copper Alloy Steel | ASTM SB61, SB62, SB151, SB152 – UNS C70600 (Cu-Ni 90/10), C71500 (Cu-Ni 70/30), C10100, C10200, C10300, C10800, C12000, C12200 |
| Nickel Alloy | ASTM SB564, SB160, SB472, SB162 – Nickel 200 (N02200), Nickel 201 (N02201), Monel 400 (N04400), Monel K500 (N05500), Inconel 600 (N06600), 601 (N06601), 625 (N06625), 800 (N08800), 825 (N08825), Hastelloy C276 (N10276), Alloy 20 (N08020) |
Ring Type Joint Flange – Technical Specifications
Below are the standard specifications for RTJ Flanges manufactured by Vardhman Steel Overseas for high-performance piping systems.
| Specification Parameter | Details |
|---|---|
| Product Name | Ring Type Joint (RTJ) Flange |
| Size Range | ½” NB to 48” NB (15mm to 1200mm) |
| Pressure Ratings | Class 150, 300, 600, 900, 1500, 2500, DIN ND-6 to ND-40 |
| Flange Face Type | Flat Face (FF), Raised Face (RF), Ring Type Joint (RTJ) |
| Applicable Standards | ANSI B16.5, B16.47 Series A & B, MSS SP44, ASA, API 605, AWWA, Custom Drawings |
| DIN Standards | DIN2527, DIN2566, DIN2573, DIN2576, DIN2641, DIN2642, DIN2655, DIN2656, DIN2627–2629, DIN2631–2638, DIN2673 |
| BS Standards | BS4504, BS1560, BS10 |
| Manufacturing Method | Forged / Machined |
| Testing & Certification | Hydro Testing, PMI, UT, RT, MTC as per EN 10204 3.1 / 3.2, Third-Party Inspection (TPI) |
Features & Benefits
Ring Type Joint (RTJ) Flanges from Vardhman Steel Overseas are engineered for high-pressure and high-temperature applications where leak-proof performance is essential. With a precision-machined ring groove, these flanges ensure a metal-to-metal seal using a metallic ring gasket, making them ideal for critical piping systems in harsh environments.
- Leak-Proof Metal Seal – Designed for optimal sealing with ring-type metallic gaskets.
- High-Pressure Capability – Suitable for pressure classes up to 2500# and beyond.
- Forged Precision Construction – CNC machined from high-quality forged material for strength and dimensional accuracy.
- Enhanced Safety – Ensures secure sealing in critical services like oil & gas, power plants, and chemical processing.
- Machined Groove Profile – Perfectly matched to API & ASME ring gasket dimensions for consistent performance.
- Available in Various Face Types – RTJ, RF, and FF depending on application need.
- Wide Material Range – Offered in stainless steel, carbon steel, duplex, and exotic alloys.
- ASME, ANSI, DIN, BS Standards – Manufactured according to global flange norms.
- Excellent Blowout Resistance – Ideal for hazardous and cyclic loading environments.
- Long Service Life – Designed to withstand extreme conditions with minimal maintenance.