Ring Type Joint Flange

Source Ring Type Joint Flange from verified mills, manufacturers and stockists on MetalMitra. Options span all standard face types and pressure classes, and every order can ship with an EN 10204 3.1 certificate.

RTJ Flanges are designed with a precision-machined annular groove that accommodates a metallic ring gasket to create a high-integrity sealing arrangement.

Ring Type Joint Flanges are commonly selected for applications where pressure, temperature and sealing requirements demand a robust flange connection. The controlled groove geometry and corresponding RTJ gasket provide a metal-to-metal sealing arrangement when correctly installed according to the applicable specification.

Applications include oil & gas, petrochemical, refinery, chemical processing, power generation, marine, nuclear, defence and industrial fabrication.

Products can be supplied in multiple pressure classes and sizes according to applicable standards, approved drawings and project specifications.

Key properties

• Metallic Ring Seal — Designed to work with a metallic ring gasket for high-integrity sealing applications.
• Precision RTJ Groove — Machined sealing groove designed for the specified ring gasket configuration.
• High-Pressure Service — Suitable for selected demanding pressure and temperature piping systems.
• Wide Material Range — Stainless, carbon, alloy, duplex, nickel and copper alloy options.

RTJ Flanges Specifications

Dimensions — ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges and custom dimensions.

Standards — ANSI B16.5, ANSI B16.47 Series A & B, MSS SP44, ASA, API-605, AWWA and custom drawings.

Pressure Class — 150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS and 2500 LBS.

DIN Ratings — ND-6, ND-10, ND-16, ND-25 and ND-40.

Size Range — 1/8” to 84” NB.

Face Type — Flat Face (FF), Raised Face (RF) and Ring Type Joint (RTJ).

Applicable Standards

DIN Standards — DIN 2527, DIN 2566, DIN 2573, DIN 2576, DIN 2641, DIN 2642, DIN 2655, DIN 2656, DIN 2627, DIN 2628, DIN 2629, DIN 2631, DIN 2632, DIN 2633, DIN 2634, DIN 2635, DIN 2636, DIN 2637, DIN 2638 and DIN 2673.

ANSI / ASME Standards — ANSI B16.5, ANSI B16.47, MSS SP44, ANSI B16.36 and ANSI B16.48.

BS Standards — BS 4504, BS 1560 and BS 10.

RTJ Sealing Design

Machined Ring Groove — The flange face incorporates a precision-machined annular groove designed to accommodate the specified RTJ ring gasket.

Metal-to-Metal Sealing — The RTJ arrangement uses a metallic ring gasket to establish the specified sealing interface.

High-Integrity Connection — Suitable for specified high-pressure and demanding process piping applications.

Materials & Grades

Stainless Steel RTJ Flanges — ASTM A182 / A240 F304, 304L, 304H, 316, 316L, 316Ti, 310, 310S, 321, 321H, 317, 347, 347H and 904L.

Duplex & Super Duplex Steel — ASTM / ASME A/SA 182 F44, F45, F51, F53, F55, F60 and F61.

Alloy Steel — ASTM / ASME A/SA 182 & A387 F1, F5, F9, F11, F12, F22 and F91.

Carbon Steel — ASTM / ASME A/SA 105, A350, A181 LF2, A516 Gr.70, A36, A694 F42, F46, F52, F60, F65 and F706.

Nickel Alloys — Nickel 200/201, Monel 400/500, Inconel 600/601/625/800/825, Hastelloy C276 and Alloy 20.

Copper Alloys — Cu-Ni 90/10, Cu-Ni 70/30 and selected copper alloy UNS grades.

Detailed Material Selection

RTJ Ring Gasket Compatibility

Oval Ring — Oval-section metallic ring arrangements for specified RTJ flange and gasket configurations.

Octagonal Ring — Octagonal-section metallic rings used for specified RTJ sealing applications.

Material Matching — Ring material should be selected to suit the flange material, service conditions and applicable specification.

Applications & industries

• Oil & Gas
• Petrochemical Plants
• Refineries
• Chemical Processing
• Power Generation
• Marine Industry
• Nuclear Applications
• Defence
• Process Piping
• Pressure Systems
• Industrial Fabrication
• Sugar Industry

Testing & documentation

Inspection and documentation for Ring Type Joint Flange follow the applicable standard plus any extra requirements in your PO.

• Dimensional inspection
• RTJ groove dimensional inspection
• Ring groove surface inspection
• Material identification and traceability
• Visual and surface inspection
• Material Test Certificate documentation
• Heat number traceability where specified
• Third-party inspection support as required
• Custom drawings and technical documentation

Why source on MetalMitra

• Checked sellers only — Every supplier profile is screened by MetalMitra before it goes live.
• Faster sourcing — Post one requirement and receive competitive offers without chasing calls.
• Paperwork sorted — MTC 3.1, test reports and TPI arranged as your project demands.
• Global logistics — Seaworthy packing and dispatch to project sites across the world.

Request pricing

Post an RFQ for Ring Type Joint Flange with your drawing or specification and receive quotes from verified suppliers.

Technical note: Figures shown are indicative. Final acceptance should be based on the applicable standard, approved drawings and the MTC supplied with the material.