RTJ Gasket

Ring Type Joint Gasket (RTJ Gasket)

Ring Joint Gasket (RTJ gasket) or Ring Type Joint Gasket is a type of gasket used in high-pressure, temperature, and corrosive environments. RTJ gaskets are used in oil & gas pipelines, chemical processing plants, refineries, and other industrial applications that require a high level of reliability and safety. Ring Joint gaskets come in various sizes, shapes, and materials to suit different applications.

The Ring Type Joint (RTJ) gasket is typically made of metal, such as stainless steel or Inconel, and has a specific shape that allows it to seal the flanges under high pressure. The gasket has a raised ring with a hexagonal or octagonal shape that fits into a corresponding groove on the flange faces. When the flanges are tightened, the gasket is compressed, and the raised ring is deformed to create a metal-to-metal seal that can withstand high pressure.

We are the largest Industrial Gasket Manufacturing facility in Asia. At Asian Sealing Products, we manufacture 14 types of ring type joint gaskets (RTJ) with highest quality and we will ensure that the gaskets are delivered to the customers on time.

Oval Ring Joint Gasket Manufacturer & Supplier

Oval Type RTJ Gasket

Octogonal Ring Joint Gasket Manufacturer & supplier


RX type ring joint gaskets

RX Type

PTFE coated gaskets

PTFE Coated

Rubber Moulded Gaskets Manufacturer

Rubber Moulded

rtj kammprofile gasket Manufacturer & supplier

RTJ Kammprofile

bx type ring gasket manufacturer & supplier

BX Type

Product Details

Ring Joint Gaskets Oval and Octagonal
  • Oval cross-section Industry Ring Joint Gaskets and Octagonal cross section Ring Joint Gaskets are used in pressures up to 10,000 psi
  • The hardness of the ring gasket should always be 30% lesser than the hardness of the flanges to prevent flange deformation
  • Dimensions and Tolerances for Ring Joint Gaskets and Grooves are covered in API 6A and ASME B16.20.
  • We stock a wide range of sizes and materials ready for immediate shipment from Ring Numbers R11 to R105.
Ring Joint Gaskets BX and SBX Type
  • Specially designed for very high pressure
  • All BX gaskets incorporate a pressure balance hole to ensure equalisation of pressure, which may get trapped in the grooves
  • Only suited for API BX flanges and grooves
  • Available from BX150 to BX303
  • SBX type Ring Type Joint Gaskets are as per API 17D standard.
  • Dimensions and tolerances of SBX type are as per API 6A, but it consists of additional pressure passage hole. The hole comes as per two options as stated in API 17D standard depending upon the requirement of the application where the flange is installed.
  • SBX type gaskets are strictly produced only using non corrosive material as per the requirement of API 17D standard.
Ring Joint Gaskets RX Type
  • An adaptation of the standard ‘r’ type gasket
  • Designed to fit the same groove design
  • Interchangeable with standard r type gaskets
  • Available from rX20 to rX215
Combo or Transition rings
  • Combination rings or transition rings combine two different sizes having the same pitch diameter permitting bolt up of differing size flanges
Ring Joint Gaskets – SrX Type
  • SrX type gaskets are similar to rX gaskets
  • But SrX Ring Joint Gaskets come with a special vent hole to allow water to escape in subsea applications
Ring Joint Gaskets Blind Gaskets
  • Ring Joint Gaskets can also be manufactured as a blind profile
  • Ring Joint Gaskets Rubber Coated
  • Rubber coated oval/octagon Ring Joint Gaskets (usually steel) are used in pressure testing to minimise damages to flanges
  • Rubber contact points provide additional seals while protecting the flange surfaces
Ring Joint Gaskets Kammprofile-Octagonal
  • Kammpro-orJ Ring Joint Gaskets are sized to the standard octagonal aPI 6a or aSMe B16.20 dimensions
  • With the addition of the Kammpro design, these Kammpro-OCT Ring Gaskets are applied to the sealing areas and faced with oxidation inhibited flexible graphite
  • The design is ideal for applications where cracking or embitterment has been experienced in ring joint groove
Ring Joint Gaskets Pressure Energized Gaskets
  • Kammprofile – PEG with Kammprofiled sealing surfaces are ideal for high pressure reactors where a rX type ring is typically used
  • Frequently, custom ring is used in the top and bottom of hydro processing reactors
  • gasket surfaces are serrated as per Kammprofiled specifications and are faced with oxidation inhibited flexible graphite.
  • It has the benefits of under compression graphite flows into minor imperfections creating higher seal tightness.
Ring Joint Gaskets Kammprofile-Adapter Gaskets
  • Kammpro-adapter gaskets allow ring type joint flanges to be mated up to a raised face flanges
  • They utilise the strengths of the full metallic with the added benefit of kamm profiled sealing surfaces laminated with flexible graphite
  • Since the pitch of the groove is sufficiently located under the raised face, this design is among the stoutest of adapter styles
Bridgeman Gaskets
  • The Bridgeman gasket is a pressure-activated gasket typically used on pressure vessel heads and valve bonnets for pressures of 1500 psi and above
  • The cross section of the gasket is such that the internal pressure acting against the ring forces is turned against the containing surface, creating a self-energized seal
  • Bridgeman gaskets are frequently silver-plated or lead-plated
  • This ensures in providing a softer surface and minimises the force required to flow the gasket metal into the flange surface
Delta Gaskets
  • A delta gasket is a pressure-actuated gasket used primarily on pressure vessels and valve bonnets at high pressures in excess of 5000 psi
  • As with the lens gasket, complete drawings and material specifications must be supplied
  • Internal pressure forces the gasket material to expand, whereas the pressure forces tend to separate the flanges
  • Extremely smooth surface finishing of 63 micro inches or smoother is required when using this type of gasket
Lens Ring
  • A lens type gasket is a line contact seal used in high pressure piping systems and in pressure vessel heads
  • The lens cross-section is a spherical gasket surface and requires special machining on the flanges
  • These gaskets fit with a small bolt load since the contact area is small and gasket seating pressures are very high
  • Normally, the gasket materials should be softer than the flange

When ordering lens gaskets, complete drawings and material specifications must be supplied.

RTJ Kammprofile Gaskets
  • A composite gasket that utilises a serrated metal core with a soft facing material
  • The metal core is machined on each contact face with concentric serrations, providing high pressure areas
  • This ensures the soft coating flows into any imperfections in the flange even at relatively low bolt loads
  • The soft facing material is engineered to compress into the serrations on the core and form a thin film across the peaks creating the ideal sealing density in the grooves of the profile
  • The result? You get a gasket that combines the benefits of soft cut materials with the advantages of seal integrity associated with metallic gaskets
  • Expanded graphite is the most common facing material used for Camprofile gaskets
  • However, other materials can also be used. For instance, PTFE for chemically aggressive duties and mica for high temperature services
Kammprofile Gaskets Core Design
  • Standard core design is parallel which offers the advantage of even stress distribution across the gasket face
  • Convex Cam profiles are also available which have a reduced depth of grooves towards the Profile Centre
  • This type of profile ensures a high seating stress in the middle of the profile and is effective for low bolt load applications
  • A wide range of seating stresses under which the seal is effected and maintained
  • Recommended for insufficient bolt loads to seal conventional gasket materials
  • Easy to handle and fit
  • Suitable for a wide range of operating conditions
  • The soft facing layer prevents damages to the mating flange
  • Sealing is not sensitive to uneven bolt loading conditions
  • Can be refurbished with a new facing layer and reused