Rtj gasket types. RTJ gaskets are sized by R-number.

Rtj gasket types. James Walker ring type joint gaskets are manufactured to ASME and API standards for high pressure duties in oilfield and processing industry applications. 47 series A May 30, 2025 · R-type gaskets,—also known as ring-type joint (RTJ) gaskets or joint rings—are precision-engineered metallic sealing components used primarily in high-pressure, high-temperature industrial applications. Choosing the right type of gasket is essential for the performance and durability of the connection. They are mainly used in the oil field on drilling and completion equipment. These gaskets, commonly known as RTJs, are widely used in various industries due to their exceptional sealing properties. Applications of Soft Iron Ring Joint Gasket with Zinc Plated The soft iron ring joint gasket with zinc plate usually used in pipe flanges, tower tanks, pressure vessels, high-speed joint surfaces, high-temperature and high-pressure valves, covers for high-temperature and high-pressure steam, gas, and solvent. Both types have an identical pitch diameter as the flange groove they correspond to. DIMENSIONS CHART FOR METALLIC TYPE R RING GASKET Type R ring type joint (RTJ) metallic gasket dimensions for octagonal or oval in cross section per ASME B16. The ring type joint gaskets are either octagonal or oval in cross-section. Non-Metallic, Metallic, Composite, CANF, Camprofile, Spiral Wound, Oval and Octagonal Ring Gasket. Style RX RTJ Gasket The RX type RTJ gasket is manufactured according to API 6A and ASME B16. Phenolic type D insulating gasket Kit is designed for RTJ flanges, they can be made of material phenolic and GRE G10. What are the main types of blind flanges? • The main types are standard blind flanges, raised face blind flanges, and RTJ (Ring Type Joint) blind flanges. It is a little bit similar to the blind flange but with a raised face. Jan 12, 2024 · The ridges or grooves on an RTJ flange compress the ring gasket, providing a tight metal-to-metal seal and preventing fluid or gas leakages. How do raised face blind flanges improve sealing? • The raised face on these flanges enhances the sealing performance by providing a better surface for the gasket. 47 RTJ flanges refer to large diameter welding neck or blind flanges made in accordance with ASME B16. RTJ gaskets are sized by R-number. RTJ flanges are commonly used in high-pressure and high-temperature applications. Each gasket type is detailed in terms of its application scope, with non-asbestos gaskets being suited for low-pressure, low-temperature, and non-critical uses, while RTJ (Ring-Type Joint) gaskets are high-integrity metal gaskets used to create a reliable, leak-proof seal in high-pressure and high-temperature applications. Quality Ring Type Joints (RTJs) Ring Type Joint (RTJ) Gaskets are precision machined, from a wide range of materials, determined by service conditions, and are suitable for high temperature and high pressure applications. Feb 11, 2025 · RTJ (Ring Type Joint) flanges are a type of flange designed for high-pressure and high-temperature applications. Both flanges have features and advantages and make choosing them can be challenging. Ring Type Joint gaskets Introduction Ring type gaskets are critical components in industrial applications where creating a secure and leak-free seal is essential. Our extensive and varied product offering includes spiral wound gaskets, RTJ gaskets, FlexproTM Kammprofiles, sheet materials, dynamic and static packings, pipe support and custom rubber products. Common in oil & gas, petrochemical, subsea, and refinery systems, the RING TYPE JOINTS The gasket hardness is carefully controlled and shall always be softer than the mating flanges to ensure a good seal and no damage to the flange surface (note: RTJ gaskets should not be re-used). RTJ-Ring Type Joint Metallic Ring Type Joint gaskets are heavyduty, high-pressure gaskets largely used in offshore petrochemical applications. 20 / API 6A* BX Ring Type Joint Gaskets - In accordance ASME B16. Mar 20, 2025 · BX ,R, RTJ Ring Joint Gaskets as per API 6A and ASME B16. RTJ - Style BX Style BX gaskets incorporate a pressure balance hole to ensure equalization of pressure which may be trapped in the grooves. RTJ Gaskets are precision engineered components that are used in conjunction with specially designed flanges. Irrespective of the type of flangeused, a soft gasket should be installed on a serrated flange surfaceto avoid poor sealing. For reliable and leak-free solutions, N-Pipe Solutions Inc. This blog post will simplify the procedure of how to select the right RTJ gasket in Dubai for your requirements. Industrial standards and certification ASME/ ANSI B16. This guide will help you understand different types of gaskets, their materials, and their industrial applications, with insights from Garlock, Durlon, Flexseal, Klinger, American Biltrite™, and other — trusted manufacturers in the sealing industry. Metallic ring type joints (RTJ’s) are heavy duty, high pressure gaskets largely used in offshore and refining petrochemical applications. Typical applications are in refineries in the petrochemical industry. Used extensively to prevent uid and gas leaks, ring gaskets nd applications in industries from oil and gas to chemical processing. Our extensive and varied product offering includes spiral wound gaskets, RTJ gaskets, FlexproTM Kammprofiles, sheet materials, dynamic and static packings, pipe support and custom rubber products. Flange-based applications must check for defects in gasket installation. Type E flange insulation kits come in high-temperature, neoprene-faced phenolic and phenolic materials. As the RX Ring Joint Gasket is designed to fit exactly the same groove style as a Common Style R Ring Joint Gasket, so These gaskets are exchangeable with oval or octagonal ring type joint gaskets used on API 6B flanges Jun 23, 2025 · Let’s explore. Dec 14, 2021 · Learn about the RTJ flange - including characteristics, applications, gasket to use, and how to machine the RTJ grooves when refurbishing. Learn about types of flange faces: Flat Face (FF), Raised Face (RF), Ring Joint (RTJ), Tongue and Groove (T&G), and Male and Female types. Get reliable sealing solutions for high-pressure and high-temperature applications with our R-Type ring joint gasket. For RTJ flanges that seal with ring gaskets, the raised faces of the connected and tightened flanges may contact each other. The Metal Flange Gasket or Ring Type Joint Flange Gasket is all metal Flange Gasket made from Carbon Steel, Stainless Steel or other Exotic Alloy and is commonly called a RTJ Gasket. Metals are typically chosen so that the ring gasket is softer than the flange material in order to prevent damage to the The Ring Type Joint (RTJ) gasket is a forged ring that fits into the machined groove of an RTJ flange. The RTJ Flange Gaskets are designed to be used in high pressure, high temperature critical applications. Type D – BX BX gaskets are an octagonal shape phenolic gasket designed to work specifically with a BX grooved flange. Discover their applications and features. Rated up to 20,000 PSI. They are mostly used in chemical facilities andindustries including oil and gas to assist with strong sealing. This type of gasket is widely used in multiple industries to In the oil and gas industry, gaskets play a critical role in maintaining leak-proof seals in pipelines, flanges, and high-pressure equipment. Aug 7, 2025 · Octagonal ring gaskets provide improved sealing efficiency in higher-pressure systems due to their increased contact area and structural rigidity. Revata Engineering's Ring Type Joint (RTJ) Gaskets are precision machined, metallic sealing rings suitable for high temperature and high pressure applications. 5 Raised face, Full face, and RTJ flanges. On the face of the inner disk of this type of flange, there is an indentation for the placement of a metal or graphite ring gasket, which creates a tight and leak-free connection. ) Ring gaskets are essential in various industries and crucial in creating reliable seals for pipelines, anges, and other connections. Some of the different RTJ Gaskets include R Oval, R Octagonal, RX, and BX. The right flange face ensures leak-proof connections, maintains system integrity under Jun 20, 2023 · The Ring Type Joint was originally developed for high pressure/temperature applications in the petroleum industry, mainly used for drilling and completion equipment in oil fields. Apr 26, 2025 · When it comes to connecting piping systems, the choice of flanges can significantly impact performance, cost, and maintenance. Our ring joint gaskets are strictly manufactured as per API-6A and ASME B16. 308” thick, 316 stainless steel core retainer laminated on both sides with The BX type RTJ gaskets are manufactured in accordance with API 6A and are suitable for use in high pressure API 6BX flanges. This innovation ensures superior sealing at significantly lower stresses than conventional Ordering the correct Flange Isolation Gasket Kit requires knowing the specifications and type of service for your particular application. RTJ gaskets are generally used for high pressure and high-temperature applications. 5-Inconel 625,N06625, Style BX,R are pressure energized gaskets manufactured in accordance with API 6A and designed for use up to 20,000 psi. These gaskets are circular in shape and have a hollow center, resembling a ring. Flanges with different faces require different gaskets and shall never be mated to prevent leakage of the joint. Both are available in grade CE phe-nolic, G-10, and high tempera-ture G-3 materials. This station can detect the proper installation for all rtj gaskets types, offering protection from system failure. RF and FF flanges may have different types of “finish” (i. Lamons Ring Type Joint (RTJ) Gasket Product Family Lamons manufactures and supplies a large variety of ring type joint gaskets. The Ring Type Joint was designed for the Petroleum and Petrochemical industries where higher pressures and temperatures are present. The Leader RTJ gaskets are specially designed for high pressure applications. Sep 20, 2017 · The article outlines the five primary types of flange gaskets used in the oil and gas industry: non-asbestos, spiral wound, ring joint (including R, RX, and BX styles for RTJ flange faces), Kammprofile, and jacketed gaskets. A ring-type joint flange, or RTJ flange, is a specialized flange featuring a groove machined into its face to accommodate a metal ring-joint gasket. RING TYPE JOINTS (RTJ) RTJs are designed to be used in high pressure applications and can be manufactured from a number of materials to suit the process media and the flange materials. Aug 12, 2024 · Ring Type Joint (RTJ) is a type of sealing joint used in high-pressure and high-temperature environments. These gaskets are precision-engineered to fit into a machined groove on the flange face, ensuring a leak-proof seal. 5 and API 6BX (dependent on the gasket style) flanges. The octagonal type has a higher sealing coeffient than the oval, therefore being the better gasket of the two. A “flat groove” design, however, accepts both RTJ gaskets having an octagonal or oval section. High-performance RTJ ring gaskets for critical sealing in oil & gas applications. May 31, 2025 · What are the advantages and disadvantages of RTJ and Tongue and Groove flanges? RTJ (Ring-Type Joint) flanges and Tongue and Groove flanges each have distinct advantages and disadvantages. Incoloy 825 Ring Joint Gaskets,N08825 API RX Ring gasket,BX Ring gasket We are the professional manufacturer and exporter of Incoloy 825 Ring Joint Gaskets,N08825 API RX Ring gasket,BX Ring gasket Ring joint gasket is machined from solid metal in a variety of shapes according to API 6A & ASME B16. In the rest of this article, the definition of RF and RTJ flanges RTJ - Style BX Style BX gaskets incorporate a pressure balance hole to ensure equalization of pressure which may be trapped in the grooves. Oct 10, 2018 · Types of Gasket: Configurations Full Face: As the name suggests, these cover the entire flange face and include bolt holes. Phenolic and GRE G10 RTJ insulating gaskets also can be used for API flanges. They are manufactured in two kinds of cross section: octagonal and oval accordance. Are there any new materials or innovations in gasket design? Recent innovations in gasket materials and design for the oil and gas industry focus on enhancing performance, durability, and environmental compliance. RING-JOINTS RTJ Ring joint gaskets are made from metallic materials. They are precision-engineered components designed to be used in conjunction with precision-machined flanges. 20 & API 6A Specs. This face type allows the use of a wide combination of gasket designs, including flat ring sheet types and metallic composites such as spiral wound and double Ring Type Joint Flange are used in temperatures above 800°F, Carbon Steel Ring Type joint have grooves cut into their faces, Raised face rtj flange are made as per ASME B16. Types R gaskets shall have a surface finish not rougher than 1. In this case the compressed gasket will not bear additional load beyond the bolt tension, vibration and movement cannot further crush the gasket and lessen the connecting tension. The RF flange iconcentrates more pressure on a smaller gasket area and thereby increases the pressure containment capability of the joint. RTJ Gaskets / R-Series The R-Type ring gasket can be ordered to two different profiles, oval or octagonal in cross-sections. This design provides a reliable, safe, and leak-proof seal for pipelines in high-pressure settings, such as oil & gas, and power generation. Available in R, RX, BX, SRX & SBX types. They are precision machined, metallic rings Metallic gaskets Metallic gaskets are fabricated from one or a combination of metals to the desired shape and size. Jun 27, 2025 · APS Flange Isolating Gasket Kits solve most flange sealing problems & prevent corrosion & protects the pipeline. Ring No. 6 days ago · Ring Type Joint (RTJ) gaskets are essential for the integrity of flanged connections in a variety of sectors. Description Ring type joint gasket with PTFE coated is used to eliminate gasket or flange erosion and is predominately used in aggressive media applications, and most standard sizes of ring type joint gaskets can be supplied with PTFE Coating. The gasket is then placed over the raised face with the sealing surface facing towards the other flange. We can also offer Style SRX Octagonal RTJ’s which have two pressure passage holes making the gasket suitable for subsea installation. They are available in different types, sizes, and materials to perform various tasks. Ring type joint (RTJ) flange b RTJ flanges are proven ideal in industrial applications like refineries, petrochemical plants, thermal power plants , steam turbines and more. In addition, these gaskets are Industrial Gaskets – Type D Flange Insulation Kits are specially made for RTJ flanges to be positioned in the ring groove. The RTJ face features a precision-machined groove where a metal ring gasket is placed. However, today, this product series can also be used for valves and pipework assemblies, as well as some high integrity pressure vessel joints. Often used metallic gaskets are ring-type-joint gaskets (RTJ). It lists the recommended torque values based on factors such as bolt material, size, lubrication used and class rating ranging from 150 to 2500. IBC: (Inner Bolt Circle): Commonly used on raised face flanges. 47 norms mention different types of flange faces such as: flat face (FF) raised face (RF) lap joint male and female (M&F) the large and Get reliable sealing solutions for high-pressure and high-temperature applications with our R-Type ring joint gasket. We can also offer Style SBX RTJ’s which have two pressure passage holes making the gasket suitable for subsea installation. Read More "OVAL RING JOINT GASKET-SOFT IRON" Step-Ko Products supplies flange isolation gasket kits that help prevent galvanic corrosion and maintain electrical isolation in piping systems. The BX type RTJ gaskets are manufactured in accordance with API 6A and are suitable for use in high pressure API 6BX flanges. RF and RTJ flanges are two types of standard flanges that are used to connect pipes or industrial equipment. Because of this, RTJ Gaskets must be made from material softer than the mating flanges. Full range of RTJ Gasket (Ring Type Joint Gaskets and seals) for the Oil and Gas Industry. You need to choose the right type of ring type joint for your business for perfect sealing. Type ‘F’ Gaskets are made to fit the raised face portion of the flange only. Lamons Ring Type Joint (RTJ) gaskets are specked to all industry standards The Ring-Type joint metal gaskets (also called RTJ gaskets or API joint gaskets) are heavy duty, high-pressure gaskets largely used in offshore and onshore petrochemical industry, oil-field drilling and completion equipment, and in valves and pipework assemblies, along with some high integrity pressure vessel joints. Buy Raised Face RTJ Flange at best price in India. The precision engineered solid metal gasket provides an excellent mechanical joint, when used in conjunction with precision machined flanges of the appropriate material and hardness; the gasket material is typically about 30 Brinell less than the flange A Ring Type Joint (RTJ) gasket is a forged ring that fits into the machined groove of an RTJ flange. RTJ flanges are commonly made from durable materials like carbon steel, stainless steel, and various alloys. These gaskets are built to endure high temperatures, pressures, and corrosive environments, making them essential in the oil and gas, petrochemical, and power generation industries. 5. Details:- The R-Type ring gasket are available in Ring numbers from 11 to 105 & can be ordered in two different profiles, oval or octagonal . Ring joint gasket are used in connection with RTJ flange, generates a strong seal between two mating flanges. In this article, we will explore the different types of gaskets used in flange connections, their characteristics, and their The RTJ standard size gaskets are manufactured in accordance to API-6A and ASME B16. Wealson manufactures and supplies a large variety of ring joint gaskets. However, two of the most popular types of flanges are RTJ (Ring Type Joint) and Tongue and Groove. The seal is achieved when the bolts are An RTJ flange or Ring Type Joint Flange is one of the various types of flanges used widely in piping and pipeline industries. 20 specifications. Class 600 and high rating and/ or high temperature services above 800 °F (427 °C). These joints are also used on valves and pipework assemblies. Flange insulating Gasket kits are designed to suit ASME B16. All Jun 8, 2025 · Overall, adherence to these standards ensures gaskets can maintain integrity and performance in demanding oil and gas applications. Ring Type Joint Gaskets Styles: R, RX, BX Durlon® RTJ gaskets are precision machined from solid metal and are designed for high pressure and high temperature services. 20 standards,it’s designed for high pressure ,high temperature or highly corrosive applications Type E Isolating Gasket of flange isolation gasket kits manufactured in accordance with i n d u s t r y - s t a n d a r d f l a n g e specifications such as ANSI, AWWA, etc. But not all flanges are created equal. Flanges are used to connect equipment and pipe together. It is a metallic ring with a specific geometric cross-section placed within the flange faces. This comprehensive guide will delve into what ring type gaskets are, their types, functions, applications, and the concept of pressure Feb 3, 2023 · Advantages Due to their metal ring and gasket design, RTJ (Ring Type Joint) flanges offer superior sealing performance, particularly in high-pressure and high-temperature applications. RX- type RTJ GASKET The RX type RTJ gasket is manufactured according to API 6A and ASME B16. RTJ Type Orifice Plates incorporate an integral gasket (oval or octagonal ring) that mounts between ring type joint flanges. 5 flanges. RTJ - Ring Type Joint Gaskets The Ring Type Joint gasket, or RTJ gasket, was originally developed for the petroleum refining industry. The oil fields, rigs, and down hole equipment continue to utilizie the RTJ gasket due to their high pressure service capability. Lamons Ring Type Joint (RTJ) standard size gaskets are manufactured in accordance to API 6A, API 17D and ASME B16. All SMITH RTJ gaskets are manufactured from fully traceable materials and are stamped to the requirements of API 6A and ASME B16. API 6A & ASME B16. 5 RTJ flanges refers to pipe flanges manufactured in accordance with ASME B16. Holding screws secure the plate in the holder, an there is a gasket between the plate and the holder. . They are available in a range of materials including 316 Stainless Steel, Soft Iron, Carbon Steel, Low Mild Steel, F5 and Super Duplex. SEAL TYPE O Gasket and O-Ring are available in different materials to maintain constant contact with the flange face. The metal ring gaskets are placed within this groove, ensuring that the gaskets are compressed when the flanges are connected, thereby forming a high-pressure seal. The oval type is the only gasket that will fit a BX Series ring joint gaskets are used for pressures up to 10,000 PSI. The first step in the installation of type d rtj type gaskets is to ensure clean, smooth and free of any contaminants connections. 5 pressure ratings and up to 5,000 psi in accordance with API 6A pressure ratings. The gaskets form a metal to metal seal on assembly and the efficiency improves as internal pressure increases. Made from high-quality materials Nov 27, 2023 · It is crucial to choose the appropriate Ring Type Joint (RTJ) gasket for your application in order to guarantee a trustworthy and leak-free seal. Soft gaskets (non-metallic gaskets) have a large contact sealing area and are suitable for low pressureapplications only. RTJ: Metal Ring type RTJ flange, also known as ring type connecting flange, is a type of flange commonly used in high-pressure pipeline systems. The core – an octagonal RTJ configured according to ASME and API standards – is complemented by serrated sealing surfaces lined with APX-2® graphite. How to Order Flange Insulation Gasket Kits Specify The Following: Flange Size and Pressure Rating. 3. Metals are typically chosen so that the ring gasket is softer than the flange material in order to prevent damage to the Basic Types of Ring Joint Gaskets Ring joint gaskets are manufactured in three types: Style R (including R octagonal gasket and R oval ring gasket), Style RX and Style BX. Dec 10, 2020 · The most common RTJ gasket is the R style with an octagonal section, as it ensures a very strong seal (the oval section is an older type). Raised Face RTJ flanges have a raised surface with a machined groove to accommodate the ring gasket. RTJ Gaskets can be produced from a variety of material’s to suit the process application and Type D Type D gaskets are designed to fit into the ring groove of RTJ (ring type joint) flanges. All Ring Type Joints and API Rings supplied by Alba Gaskets are manufactured to API 6A PSL Level 4, the highest recognised industry standard. Both types are designed for compatibility with standard RTJ flanges, and in many cases, they can be used interchangeably, depending on the flange groove design. 20 used with RTJ flanges ASME B16. The RTJ standard size gaskets are manufactured in accordance to API-6A and ASME B16. Ring-Type Joint (RTJ) Orifice Plate Holders: Models 560 and 590 el 500) and are used with RTJ orifice flange unions. This type of flange features a specialized grooved surface designed to accommodate RTJ gaskets. 5 furnished with a ring-type joint facing: construction & characteristics, flange types, pressure ratings, the RTJ grooves, advantages and disadvantages, dimensions & tolerances. GRM Flow Products is a supplier of high quality ring joint gaskets for high pressure and temperature service conditions. Type R Ring Gasket ASME B16. of the RTJ gasket to the I. Style R A Ring type joint flange (RTJ) is a machined metallic ring with a deep groove cut into its face. How do I install a ring joint gasket? Explore everything about Ring Type Joint (RTJ) Gaskets — from types, materials, and applications to installation best practices and pricing for industrial sealing needs. A VISUAL GUIDE Designed for heavy duty, high pressure sealing applications. 20 and up to 5,000 psi in accordance with API 6A pressure ratings. In the case where the gasket materials of RTJ type and the flange had a similar hardness, will be necessary do a thermal treatment to the RTJ gasket to reduce the hardness. Feb 2, 2024 · We specializes in ring joint gasket, including ring gasket in R, RX, BX, IX types, Lens Gasket, Weld Ring Gasket and Bonnet Gasket (according to client's drawing). Metallic ring type gaskets are used in ring type joints which excel in high-pressure, high-temperature applications such as oil field drilling equipment. As a general rule, the most commonly used are flat face flanges (Flat Face Flanges -FF), raised face flanges (Raised Face Flanges – RF) or ring type joint (Ring Type Joint Flanges -RTJ or R-JF). The appearance of this flange has a deep groove, which is mainly used for placing metal gaskets. Jun 5, 2024 · Explore the different types of gaskets used in oil and gas applications, including spiral wound, ring type joint, Kammprofile, corrugated metal, etc. Gasket Type: D, E, or F. They provide a robust and reliable seal, making them suitable for critical environments where leakage prevention is paramount. We can supply various sizes and types of insulating gaskets, bolt insulation and complete gasket kits to suit any pressure, temperature or operational specifications. Octagonal Ring Type Joint Gasket - Style RTJ 301 Octagonal ring type gasket comes with an octagonal-shaped section by producing stainless steel elements, it is one kind of R model ring type joint gasket and the various other one is Oval ring type joint gasket. Which are the basic standards used in selection of RF, RTJ and other types of flange faces? A Ring Gasket or Ring Type Joint (RTJ) Gasket is a sealing device used in various industrial applications to prevent leakage between two connecting flanges. The ASME B16. API ring Joint gaskets come in two standard types, an oval cross section and an octagonal cross section. How do these two types of flanges compare in terms of sealing mechanisms, pressure handling, and overall cost? This comprehensive comparison Style RX ring type joints are designed to seal pressure up to 6,250 psi in accordance with ASME B16. The ring type joint gaskets are generally octagonal or oval in cross-section. The physical properties and performance of a gasket will vary extensively, depending on the type of gasket selected and the materials from which it is manufactured. The Ring Type Joint gasket, or RTJ gasket, was originally developed for the petroleum refining industy. These gaskets are engineered to sit within flange grooves and create a high-integrity seal when the flanges are tightened. API ring Joint gaskets come in two basic types, an oval cross section and an octagonal cross section. We are strategically located to provide customers with the widest selection of gasket materials and fastener stock ready for immediate There are primarily three RTJ gasket types, R, RX and BX. Ring Type Joint gaskets are designed to seal by "initial line contact" or Ring Type Joint Flange (RTJ) is a vital part in pipe connections in the piping system, by which we can create a tight and leak-free connection. 5 and B16. Applications Of RTJ Flanges RTJ flanges are suited for various industrial applications, including oil and gas, chemical, and power plant industries. The RX is a pressure energized version of the R octagonal gasket and fits the R type flat-bottomed groove. When the flange is bolted together, the gasket deforms to create a tight, metal-to-metal seal, ensuring excellent leak prevention. The Pikotek® VCS® gasket provides exceptional insulating and general sealing performance in aggressive pipeline applications. To ensure your order is ready for immediate shipment, we stock an extensive range of ring type joint (RTJ) gasket sizes and materials in our facilities all over the world. A Ring Gasket or Ring Type Joint Gasket (RTJ Gasket) is a precision sealing device designed to prevent leakage between two flange connections. This relates to both the gasket and the sealing section of the flange. May 12, 2023 · 3. of the flange bore. Ring Type Joint Gaskets form a seal between RTJ flanges by deforming under high pressures. Manufacturer & Supplier of Ring Type Joint Gaskets, Oval Ring Joint Gasket, Octagonal Ring Joint Gasket, RX / BX type RTJ Gaskets, Blind Ring Joint Gaskets in Mumbai, India. There are no moving parts and they are suitable for high-temperature and high-pressure applications. These are meant for flanges with standard ring grooves, and the octagonal kind offers better sealing. Unlike composite or elastomer-based gaskets, R-type gaskets are fabricated entirely from metals such as soft iron, stainless steel, Inconel®, or Monel®, making them ideal for severe Ring Type Joint (RTJ) Gasket from Goodrich Gasket, is a high integrity sealing gasket, high temperature & high-pressure gasket for applications in Petroleum Industry, Oilfield Drilling, Pressure Vessels Joints, Pipes and Valves. Some applications also allow for different RTJ gasket uses. The RTJ gasket is primarily used in high-pressure high temperature flange gasket applications. When required, they are manufactured tailor-made for specific applications in specific materials; certification EN 10204 3. Aug 29, 2024 · 5. They are installed in special ring-groove flanges, and when the flanges are bolted together, the gasket deforms to form a tight seal. 20 Specifications AndComes in Six Basic Profiles: R Oval, R Octagonal, RX, and BX, SRX, SBX. What are the different types of gaskets used in increasing the sealing capacity of the flange face? Primarily there are three types of flange gaskets used for enhancing sealing capacity named as non-metallic, metal and semi-metallic. It usually has a ring joint facing for accommodating a ring joint gasket. Drawing upon the group’s rich history and present day values of leadership, quality, service and technology, we are at the forefront of developing sealing solutions for industries around the world. Ring Joint Gaskets are designed to seal by "initial line contact" or wedging action between the mating flange and the gasket. 5 Standards. Proper ring type joint gasket installation and maintenance are crucial to avoid leaks, keep operations running smoothly, and guarantee the safety of people and property. As the Ring Type Joint Material should always be softer than the mating flanges, the high seating stress causes ”plasticflow” of the ring joint in the flange faces creating the seal. Apr 29, 2025 · A flange gasket is an elastic material installed between the sealing surfaces of two flanges, used to fill uneven surfaces and prevent fluid or gas leakage. The RTJ flange is designed for critical service conditions where the reliability of the seal is paramount, making it an ideal choice for the oil and gas Aug 20, 2013 · 3-Flow/Lamons Gasket; m = 0, y = 3000psi Standard spiral wound; m = 3, y = 10,000psi Calculations will yield a MUCH higher force needed to maintain a seal with a SWG!! Dec 21, 2021 · Ring Type Joint Flanges are generally used in high pressure i. Know what is a flange face? Learn about types of faces, and the difference between Flat Face (FF), Raised Face (RF), and Ring Type Joint (RTJ) flange. Ring Type Joint (RTJ) Gaskets Ring Type Joint gaskets are precision machined metallic gaskets generally used in high pressure applications such as the Oil, Gas, Petrochemical and Offshore industries. In this blog, we will compare RTJ RX Ring Type Joint Gasket - Style RTJ 304 Design RX Ring Type Joint Gasket might be a pressure inspired adaptation from the regular Type R Diamond ring Form Joints Gasket. D Type Gasket Type “D” Gaskets are manufactured to fit into the ring groove of RTJ flanges (style R, RX, and BX). RTJ gaskets (Ring Type Joint gaskets) are precision-engineered metallic sealing rings designed to withstand extreme pressure and temperature conditions in critical piping systems. It is characterized by a grooved face that accommodates a metal ring gasket, ensuring a tight and leak-proof seal. The RTJ is plastically deformed and seals the surface irregularities that contact, for this reason the gasket material has to be always softer than flange material. They are always applied to special, accompanying flanges which ensure good, reliable sealing with the correct choice of profiles and material. Type D RTJ insulating gasket Kit is designed for RTJ flanges, they can be made of material phenolic and GRE G10. DIMENSION TABLE FOR R (Oval & Octagonal) TYPE RING JOINT GASKETS PRESSURE CLASS RATINGS ANSI, BS & MSS API (psi ) 150 300/600 900 1500 2500 2000/3000 5000 Pitch Diameter of Ring Height of Ring Gasket Weights, lbs. General Market Sector Industry’s include; Oil and Gas, Petrochemical, Petroleum Oil Field Drilling Equipment and Offshore Sub-Sea applications They come in a variety of Dec 5, 2022 · Explore the world of gaskets. 10 Tensile Strength: LW 40,000 psi / CW 32,000 psi One isolating and sealing gasket, VCFS Type “F”, 0. 20 to suit API 6B and ASME/ANSI B16. The gasket is compressed between two RTJ flanges, creating a metal-to-metal seal. These gaskets provide a metal-to-metal seal between flanges, commonly used in oil & gas, petrochemical, power generation, and refinery industries where reliable, leak-proof connections are essential. It will further help you to identify the right dimension of the RTJ Gasket, along with the weights involved, so that an accurate selection for the application is performed with ease. Ring type joint (RTJ): The ring type joint flange has a groove cut into the face of the flange, which is used to hold a metallic gasket. RTJ octagonal gasket is a type of Ring Type Joint gasket designed to provide a superior and more resilient seal than traditional oval RTJ gaskets, particularly in high-pressure and high-vibration applications. They are mainly used in the oil field on drilling and comple-tion equipment. General information and description Unishore manufactures and supplies a large variety of ring joint gaskets. Used primarily in high pressure applications, Ring Type Joint (RTJ) Gaskets are made from a variety of metals to suit the needs of a range of industrial processes. 20 compliant. What is RTJ Blind Flange? In the heart of industrial setups where the management of high-pressure systems is crucial, the RTJ (Ring Type Joint) blind flange stands as a cornerstone of efficiency and safety. Let’s delve deeper into what it is and why it’s indispensable. About Lamons Lamons is one of the largest gasket and bolt suppliers in the world, commited to quality and local service. Here it offers high reliability on the sealing of the system. RTJ flanges are renowned for their robust sealing capabilities, utilizing a metal ring gasket that forms a metal-to-metal seal. 20 specification. Type R RTJ gaskets are frequently used for valves covers. Type of flange surface The flange face type of RTJ flange is one of its most prominent features. The flange face is the surface area that hosts the gasket. API RTJ Gaskets These are one of the types of gaskets available which are briefly known as ring type joint gaskets that will be manufactured with API well head equipment. Jun 24, 2025 · Ring-type gaskets, or Ring Type Joint (RTJ) gaskets, are metallic seals designed for use in high-pressure, high-temperature, and corrosive environments. Ring type joint gaskets (RTJ gaskets) are typically manufactured to API 6A (Wellhead Equipment) - 17D (Subsea Ring Joint Gaskets) and ASME B16. RTJs are precision machined metallic rings which are designed to be used with API 6B, ASME B16. The torque procedure involves cleaning surfaces, lubricating, using the correct gasket . 5 RTJ Flange. Total control of manufacturing processes ensures correct gasket surface and hardness to give a good seal without damaging flange connections. Ltd. This type of gasket is designed to be used in RTJ groove flanges and are produced under license to dimensions as per API-6A and ASME B16. The program includes recognized products and materials such as Thermiculite ®, Sigma, Corriculite ® Spiral Wound Gasket (SWG) and Ring Type Joints (RTJ). They seal by creating very high unit load, metal-to-metal line contact, with special mating flanges. These gaskets are used in pressures up to 5,000 PSI. Ring-type-Joint [RTJ] gaskets are fully metallic, milled gasket constructions, which are mainly used for applications with high pressures and/or temperatures. D. These gaskets are crucial for maintaining the integrity of pressure systems and ensuring smooth operation across numerous industries. It is widely used in refinery, petrochemical and oil field drilling industries. Our latest article explores different gasket types, material selection, industry standards, and Ring Type Joint Gaskets Styles: R, RX, BX Durlon® RTJ gaskets are precision machined from solid metal and are designed for high pressure and high temperature services. The sealing surface is a high tolerance groove cut into the face of the Flange with a maximum of a 63 RMS finish. Ring Type Joint Gaskets Ring type joint gaskets (RTJ gaskets) are typically manufactured to API 6A (Wellhead Equipment) - 17D (Subsea Ring Joint Gaskets) and ASME B16. It is always recommended that the gasket material be softer than the mating flanges. Gasket selection can be complex or it can be as simple as selecting the right color from a shelf in the stockroom. The the internal system pressure to energize and improve the seal as internal pressure increases. Some pressure on both sides of the sealing faces. When the flanges are fixed by bolts, ring joint gasket is squeezed into the groove of the The document provides recommended minimum bolt torque requirements for various flange sizes and classes when using ring type joint gaskets according to ASME B16. offers high temperature and high pressure RTJ Gaskets for petroleum industry and oilfield drilling. Complete Guide to Metallic Ring Type Joint Gaskets RTJ Gasket Overview ealing rings designed for high-pressure, high-temperature applications. Ring joint gaskets are manufactured according to ASME B16. These gaskets are used in pressures up to 5,000 PSI in API 6B flanges, and up to 2,500 PSI in ASME/ANSI B16. 1 or 3. Style BX pressure energized Ring Type Joints, manufactured in accordance with API 6A, are designed for use on pressurized systems up to 20000 psi. Available from stock inventory in a variety of materials are styles "R" – "R" Octagonal – "RX" – "BX". May 28, 2024 · Expert tips on selecting the right flange gasket for your project. These gaskets are widely used in Refineries, Petrochemical Industries, drilling well head equipment, Pressure Vessels, valves, Christmas Tree valves and Pipe lines. RTJ (Ring Type Joints) Metallic ring type joint gaskets are heavy duty, high-pressure gaskets largely used in offshore and onshore petrochemical applications. Flange Type and Surface Finish: The type of flange and surface finish of the mating surfaces can also affect the choice of the gasket. Learn about the 9 most common types in this informative blog article from APG. We stocks an B 3,2 mm (1/8 inch) thick insulating washer C Full length insulating sleeve D Insulating Ring type joint Type D gaskets are designed to fit into the ring groove of RTJ (ring type joint) flanges. The gasket material should be selected to suit the service conditions. Oct 25, 2023 · Flanges are crucial in connecting pipes, valves, and other equipment in pipe fittings. Moreover, any improper positioning gets rectified via lateral displacement to ensure precise ring joint dimensions. All of our RTJ Gaskets are manufactured in accordance with ASME B16. Built as per API-6A and ASME B16. The usage of soft gaskets is mostly restricted to flat face flanges,although it is possible to use them with raised face flangesalso. Type “D” Flange Insulation Kit (API Ring Joint Gasket) Type “D” isolation gaskets fit flanges with ring joint face, as they suit the ring joint groove of RTJ flanges (style R, RX, and BX). Typical high pressure and temperature applications where these gaskets are used include Valve and pipe-work assemblies in oil field drilling and refining applications. All our Ring Joints are manufactured according to ASME B16. Ring Joints come in two basic types, oval and octagonal. Manufactured RING-JOINTS RTJ Ring joint gaskets are made from metallic materials. It is referred to as a raised face because the gasket surfaces are raised above the bolting circle face. RTJ flanges… Learn about RTJ Gasket (Metal Ring Gasket) types such as the oval, octagonal, and RTJ Gasket Dimension Chart for size R-11 to R-105. Insulating gasket material Materials must be chosen that will ensure long-term effective sealing and electrical insulation of flange connections. This special flange face design enables RTJ flanges to achieve tight sealing between metals in high-pressure and high-temperature environments. The RX Style RTJ Ring Gasket is pressure energized, i. JinSeal RTJ Flange Gasket is Manufactured in Accordance With API- 6A, API 17D, and ASME B16. Made from high-quality materials All gaskets have a thin protective coating to eliminate oxidation efects due to atmospheric contact Durlon® RTJ gaskets are precision machined from solid metal and are designed for high pressure and high temperature services. Take action now! Jul 18, 2024 · Gaskets play a vital role in flange connections by providing a reliable seal between two mating surfaces, preventing leaks and ensuring the integrity of the system. The Gasket A gasket is a compressible material, or a combination of materials, which when clamped between two stationary members prevents the passage of the media across those members. Ring Type Joint (RTJ) The ring type joint was initially developed for use in the petroleum industry, where high pressure/temperature appli-cations necessitated the need for a high integrity seal. Total control of manufacturing processes ensures correct gasket surface and hardness to give a good seal without damaging […] Need quality ring joint gasket, RJ gasket, RTJ gasket, ring gasket for your various equipment? Then come and get it at TECHO with various items at competitive price. There are rubber coated variants as well as others available based on specifications. Style R gaskets can be either oval or octagonal, based on the cross-section. The face type enables a wider range of gasket design combinations such as double wall type, spiral wound type, flat ring sheet type, and other metal composite materials. A neoprene filler gasket is sometimes used to set on the I. Leader RTJ gaskets have all the certificates and API license. Type R Oval and Octagonal Ring Type Joint Gaskets - In accordance ASME B16. Ring Type Joint (RTJ) Metallic Gaskets are developed for use in the petroleum industry as well as drilling and oil & gas production equipment. We have 6 manufacturing and 21 sales and services branches positioned all around the world combined with many licensees and distributors. Ring type joints are also commonly used on valves and pipework assemblies, along with some high integrity pressure vessel Ring Type Joint Gaskets Styles: R, RX, BX Durlon® RTJ gaskets are precision machined from solid metal and are designed for high pressure and high temperature services. 5 and ASME B16. 20. Metallic ring type joint gaskets are heavy duty, high-pressure gaskets largely used in offshore and onshore petrochemical applications. roughness on top Ring type joint (RTJ) flanges from 2”- 36” (50mm - 920mm) Raised face flanges from 1”- 36” (25mm - 920mm) Compressive Strength: 66,000 psi Dielectric Strength: 800 VPM Water Absorption: 0. e. See Figure 5. The Ring Type Joint gasket, or RTJ gasket, was originally developed for the petroleum refining industry. Aug 23, 2019 · The ASME B16. While they are similar in shape to the R type, a Ring Type Joint (RTJ) The ring type joint was initially developed for use in the petroleum industry, where high pressure/temperature appli-cations necessitated the need for a high integrity seal. Jul 27, 2017 · The R-Type ring gasket can be ordered to two different profiles, oval or octagonal in cross-sections. Gaskets – RTJ AND IX SEAL RING GASKETS General information and description IPS Group supplies a large variety of ring joint gaskets. 6. Raised Face (RF) The Raised Face flange is the most common type used in process plant applications, and is easily to identify. Both types have identical pitch diameter as the flange groove they correspond to. The API RTJ gaskets also called ring type joint gaskets are heavy duty and high-pressure gaskets largely used in offshore and onshore petrochemical industry, oil-field drilling and completion equipment, and in valves and pipework assemblies, along with some high integrity pressure vessel joints. Selecting the right gasket—whether spiral wound, ring-type joint (RTJ), Kammprofile, or non-metallic—ensures system integrity and prevents costly failures. Jul 22, 2024 · 2. These basic shapes are used in pressures up to 10,000 psi. Learn about 8 types of gaskets used in process piping. Specialized machined gaskets can also be manufactured to the end users specifications. The hardness of the ring should always be The RTJ standard size gaskets are manufactured in accordance to API-6A and ASME B16. API RTJ Gaskets – These are one of the types of gaskets available which are briefly known as ring type joint gaskets that will be manufactured with API well head equipment. 20 and API 6A standards. The necessary surface quality depends substantially on the Brinell hardness of the gasket material The relationship RZ [µm] < 300/HB provides a useful Goodrich Gasket Pvt. The orifice Type D – Ring Type Joint (RTJ) The RTJ is an oval or octagonal phenolic gasket designed to work specifically with RTJ grooved Flanges. Jan 8, 2024 · What is a Ring Gasket? A ring gasket, known as a ring joint (RTJ) gasket, is a mechanical seal to prevent leakage between flanges or other connecting surfaces. The Pikotek® VCS gasket provides exceptional insulating and general sealing performance in aggressive pipeline applications. RTJ Flanges have groove cut into their face which steel ring gasket. Unlike standard flanges, RTJ flanges use a metal-to-metal sealing system, where a precision-machined groove on the flange face holds a metallic ring gasket. This datasheet outlines the basic characteristics and application parameters of the various design configurations available for this range of gaskets and provides information on material Aug 7, 2025 · A ring gasket —technically known as a ring‑type joint (RTJ) gasket or R‑type gasket —is a precision‑machined, metallic sealing ring. PED approved Ring Type Joint Flange Manufacturers and Supplier of ASME B16. 20 specification Visit GRM Flow Products to learn more and get a quote! Type E flange insulation kits are available in phenolic, neoprene-faced phenolic, and high-temperature materials. Ring joint gaskets are metallic sealing ring suitable for high pressure and high temperature applications. Kammprofile Ring Type Joint (RTJ) Lamons takes pride in helping our customers find the right metallic gasket for any industry application. Technical Details Ring Type Joints concentrate the bolt load over a small area producing high sealing stresses. We recommend that RTJ Type Orifice Plates be used for clean liquids, gases and low-velocity steam flows. These two types of flanges are more important due to their special features and for correct selection and optimal use in industrial projects, including: Oil and gas, petrochemicals, water and sewage are very important. As there are no bolt holes in the F gasket, the outside diameter of the gasket falls within the inside diameter of the bolt hole circle. Style SRX and Style SBX are respectively as the adaptation version of Style RX and Style BX. Ring type joints are also commonly used on valves and pipework assemblies, along with some high integrity pressure vessel Ring-Joints RTJ Ring-Joint (RTJ) gaskets are made from metallic materials. Figure 5 – Type “F” Flange and Gasket Type D – Ring Type Joint (RTJ) The RTJ is an oval phenolic gasket designed to work specifically with RTJ grooved Flanges. e it will utilize the line pressure to create the seal. But for better sealing and isolating effect, RTJ insulating gaskets are usually replaced by MCG insulating gaskets, especially when used for high pressure flanges. Overview of RTJ and RF Flanges Definition of RTJ Flange An RTJ (Ring-Type Joint) flange features a precisely machined groove on its sealing face, designed to accommodate a metal ring gasket. The oval type is the only Ring Type Joint Flanges The Ring Type Joint or RTJ refers to the type of Gasket required for the Flange. The Ring Type Joint (RTJ) gasket is a forged stainless steel ring that fits to the machined groove of the ring type joint flange. The ring type joint was initially developed for use in the petroleum industry, where high pressure/temperature applications necessitated the need for a high integrity seal. 2. Flexitallic ® is a market leader in the manufacture of static flange seals and delivers the highest quality industrial gaskets globally. Kam Gaskets redefines the landscape of RTJ sealing, leveraging advanced engineering to offer unmatched sealing efficiency in rigorous applications. Used in both Topside and Subsea applications they incorporate a high integrity metal to metal seal and offer a highly reliable and robust connection. 5 – these are applied to the flanges and flanged fittings. They can only be used with full face flanges. Metals are typically chosen so that the ring gasket is softer than the flange material in order to prevent damage to the Feb 6, 2025 · Ring-type joint gaskets (RTJ gaskets) are essential for maintaining the integrity of flanged connections in a variety of industrial applications. API Ring Type Joints are widely used in high pressure hydrocarbon service in Oil and gas production. Feb 7, 2022 · An RTJ flange can be used in most applications where a traditional flange is used, as long as it meets the required standardizations. There are three types of ring type joint gasket designs, the R type, RX Jan 27, 2021 · From spiral wound to Kammprofile to RTJ gaskets, we cover the most common types of gaskets used in oil and gas, along with their strengths and weaknesses. This groove rests a metal ring which gets compressed when the connecting bolts of the flange are tightened. However, selecting the right gasket for a leak-free seal requires much more thought and consideration. The R-Type ring gasket can be ordered to two different profiles, oval or octagonal in cross-sections. This groove ensures a metal-to-metal seal, making the RTJ flange highly suitable for high-pressure and high-temperature applications. Ring type joints are also commonly used on valves and pipework assemblies, along with some high integrity pressure vessel joints. Drawing upon the group’s rich history and present day values of leadership, quality, service and technology, we are at the forefront of developing sealing solutions for industries around the world May 31, 2023 · Types of Ring Type Joint (RTJ) Gaskets Ring joint gaskets are heavy duty metallic ring type joint gaskets and largely used in onshore and offshore upstream and downstream petroleum and petrochemical applications where high pressures and temperatures are encountered. 20 / API 6A Also available SBX RTJ gaskets to API 17D for Subsea Applications. Nov 14, 2023 · Ring type joint gaskets, also known as RTJ gaskets, are types of gaskets designed to prevent leakages in high-pressure and high-temperature applications. View RTJ Flange Dimensions, Ring Type Joint Flange Class 900 Weight Chart. 4. and the Rings Are Generally Used For High Pressure and High-temperature Applications. The gasket material selected must be capable of sealing mating surfaces, resistant to the medium being sealed, and able to withstand the application temperatures and pressures. The RTJ gasket is primarily Advanced Gasket & Supplies API ring type joint flange gaskets (RTJ gaskets) are used in applications that involve extreme pressures and high temperatures such as oil field drilling or valves and pipe assemblies. When bolted together, the gasket deforms to create a tight, leak-proof seal, making RTJ flanges highly reliable in extreme Style BX ring type joints are designed to seal pressure up to 20,000 psi in accordance with API 6A pressure ratings. Metals are typically chosen so that the ring gasket is softer than Ring Joint GasketRing Joint Gaskets Are Widely Used in Refinery, Petrochemical And Oil Field Dilling Industries. These solid precision machined metallic gaskets, also called and known as ring type joint (RTJ) gaskets are suitable for the highest possible pressure and temperature duties Common specific applications, used on wellheads and Christmas trees. It is designed to sit within the flange joint, creating a seal when the flanges are tightened together. offers a comprehensive range of RTJ gaskets, crafted in accordance Sep 3, 2019 · ASME B16. It is a pressure energized seal in radial direction. The ring-type joint gaskets have octagonal or oval cross-sections. Lamons manufactures and supplies a large variety of ring joint gasket types. Feb 27, 2025 · Ring Type Joint (RTJ) Flanges are specialized flanges designed for high-pressure and high-temperature applications. Contact the staff at American Seal & Packing to order today. The refining processes produced extremely high pressures with flammable and explosive medias. 47 with ring-type joint facing: technical drawing, dimensions and tolerances. One key detail that often goes unnoticed — yet plays a critical role — is the flange face type. Being a metal to metal type solid seal, the RTJ is capable of Ring Joints Gasket Oval and Octagonal RTJ’s are designed to seal pressures of up to 6,250 psi in accordance with ASME B16. Do you know all the 7 types of flange sealing surfaces? FF, RF, MF, M, T, G, RTJ The flange sealing surface basically has: Full plane: FF Raised […] The Ring Type Joint RTJ - Type BX series is designed primarily for special applications involving high pressures up to 20,000 psi. Some types of gaskets, such as RTJ gaskets, require a specific surface finish and roughness to create a proper seal. All RTJ Gasket Apr 20, 2021 · Flanged butterfly valve has a flange on the valve, and bolts are used to connect the flanges at both ends of the valve to the pipe flange. There are also two less commonly used types of faces: flanges with tongue and groove faces and flanges with male and female faces. TYPE D D – fit the ring grooves on ring type joint (RTJ) flanges. Learn about materials, types, and common selection criteria. 20 and API 6A. May 28, 2025 · Ring Type Joint (RTJ) flanges are categorized mainly by their face design: Raised Face RTJ flanges and Flat Face RTJ flanges. Our high-quality products and materials provide an effective seal and electrical isolation of flanges, eliminating leakage, preventing corrosion, and preserving the integrity RTJ Gasket Size Chart in in mm, Kg, PDF Our RTJ Gasket Size Chart in mm, Kg, PDF will help in making the weight of RTJ gasket sizes by serving as a quick reference for weights. RTJ gaskets are available in a wide range of materials and sizes. The more popular Ring Type Joint materials, with the recommended maximum hardness and identification as specified in API 6A, are shown in the table below. The requirements in terms of dimensional accuracy and surface quality are therefore high. The average diameter of the gasket is definitely slightly greater than the average SECTION I Gasket Selection Gaskets can be classified into three categories: soft cut, semi-metallic and metallic types. Kaxite manufactures and supplies a large variety of Ring Type Joint Gaskets, RTJ Gaskets, Ring Joint Gaskets. High performance, ASME B16. A Ring Joint Flange Face (RTJ) is a type of flange face design utilized in high-pressure and high-temperature piping systems. 260” thick or . Engineers often find themselves weighing the differences between Ring Type Joint (RTJ) flanges and Raised Face (RF) flanges. These standard shapes are used in pressures up to 10,000 psi. Flat face flange (FF) Flat-face flanges have a sealing surface in the same plane as the circumferential bolt surface. The 6 available types of flange face are flat (FF), raised (RF), ring joint (RTJ), lap joint, male and female (M&F), tongue and groove (T&G). We also offer BX gaskets. Aug 31, 2018 · RTJ is important in the petrochemical industry. The oval type is the only gasket that will fit a round Ring Gasket - A Comprehensive Guide (Functions, Uses, Types, Standards, etc. 6 μm (63 μin) roughness. Call us today! Flange Face Types Explained: Raised Face vs Flat Face vs Ring Type Joint (RTJ) When it comes to building strong, leak-proof piping systems, flanges are the backbone. They seal by creating very high unit load, metal-to-metal line contact with special mating flanges. These gaskets typically have oval or octagonal cross‑sections and fit into a matched groove in a flange. This difference has to be, at least 30 HB. FLANGE FACES TYPES The types of flange faces are shown in the following image: The term “flange facing” refersto the shape of the contact surface that seals the connection between two flanges (the area that seat the gaskets). dhook kvm 26iv nlf wr13my lkjui ncp fib ma j0p5