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Ring Gasket BX155



The BX155 Ring Gasket is a metallic ring type joint (RTJ) gasket designed for high-pressure sealing applications in oil & gas, wellhead, drilling, and pressure control equipment. BX-type ring gaskets are commonly used in API 6A wellhead and Christmas tree equipment, where reliable metal-to-metal sealing is required under demanding operating conditions.
BX ring joint gaskets are designed for use with compatible BX-type ring grooves and flanges. Unlike conventional soft gaskets, BX-type gaskets provide a pressure-energized metal-to-metal sealing arrangement, making them suitable for high-pressure equipment where sealing integrity, dimensional accuracy, and material compatibility are critical.
The BX155 designation identifies a specific gasket size within the BX ring joint gasket range. Correct selection requires verification of the mating flange, groove dimensions, pressure rating, gasket material, and applicable equipment specifications.
STX Engineering Solutions supports oil & gas, drilling, offshore, marine, and industrial customers in Kemaman, Terengganu, Malaysia with the sourcing and supply of BX155 ring gaskets, API 6A ring joint gaskets, wellhead sealing components, flange gaskets, and related oilfield equipment.
Key Features
- BX Type Ring Joint Design – Metallic ring gasket designed for compatible BX-type flange grooves used in high-pressure oilfield equipment.
- High-Pressure Sealing Applications – BX-type ring gaskets are commonly used in API 6A equipment with pressure classes of 5,000 psi and above, subject to the applicable flange and gasket specifications.
- Pressure-Energized Sealing – Designed to enhance sealing performance through the interaction between gasket geometry, flange compression, and internal pressure.
- Metal-to-Metal Sealing – Provides a metallic sealing interface for demanding pressure-containing connections.
- API 6A Applications – Commonly associated with wellhead, Christmas tree, and high-pressure oilfield flange connections.
- Precision-Manufactured Profile – Requires accurate dimensions and surface finish to achieve proper seating within compatible BX ring grooves.
- Material Options – BX ring gaskets may be manufactured from suitable metallic materials, including soft iron, low-carbon steel, and selected stainless steel grades, depending on the application and manufacturer.
- Heavy-Duty Oilfield Use – Suitable for compatible high-pressure wellhead, drilling, production, and pressure control equipment.
- Replacement Gasket Identification – BX155 marking helps identify the required gasket size when sourcing replacement ring joint gaskets.
Applications
BX155 ring gaskets can be used in compatible high-pressure equipment and flange connections, including:
- Oil & gas wellhead equipment
- Christmas tree assemblies
- Offshore drilling equipment
- Onshore drilling operations
- High-pressure flange connections
- Well control equipment
- Pressure control systems
- Oilfield production equipment
- High-pressure piping connections
- Well intervention equipment
- Hydraulic workover equipment
- Drilling and production manifolds
- Oilfield equipment maintenance
- API 6A flange sealing applications
The BX155 gasket must be matched to the correct flange groove configuration and equipment requirements before installation.
BX155 Ring Gasket Specifications
Description Details
Product Name BX155 Ring Gasket
Gasket Type BX Type Ring Joint Gasket
Ring Number BX155
Sealing Type Metallic, Pressure-Energized
Applicable Standard API 6A / Relevant Ring Joint Gasket Specifications
Material To Be Confirmed Based on Requirement
Application High-Pressure Oilfield Flange Sealing
Industry Oil & Gas, Drilling, Wellhead Equipment
Exact gasket dimensions, material grade, hardness, pressure compatibility, and applicable flange specifications should be verified against the relevant engineering standard and manufacturer documentation.
BX Type Ring Joint Gaskets
BX ring joint gaskets are part of the metallic RTJ gasket family used in industrial and oilfield pressure-containing connections.
Common ring joint gasket configurations include:
- R Type Ring Joint Gasket – Available in oval and octagonal profiles for compatible RTJ flange grooves in industrial piping and pressure equipment.
- RX Type Ring Joint Gasket – Pressure-energized metallic ring gasket commonly used in high-pressure oilfield flange applications.
- BX Type Ring Joint Gasket – Pressure-energized metallic ring gasket designed for compatible BX flange grooves, commonly associated with API 6A high-pressure equipment.
BX ring gaskets are not interchangeable with R or RX gaskets unless expressly permitted by the applicable flange and equipment specifications.
Correct Product Identification
When sourcing a BX155 Ring Gasket, customers should verify the ring number, flange type, groove dimensions, gasket material, pressure rating, and relevant equipment requirements.
Important information includes:
- Ring gasket designation: BX155
- Applicable flange specification and size
- Equipment pressure rating
- Required gasket material and hardness
- Operating temperature and service conditions
- Sour service requirements, where applicable
- Material certification and traceability requirements
For critical oilfield applications, customers should also confirm whether material test certificates, dimensional inspection records, or other project-specific documentation are required.
BX ring joint gaskets are generally intended for single-use installation. Replacement with a new, correctly specified gasket is recommended whenever the flange connection is dismantled, in accordance with the equipment manufacturer's requirements.
BX155 Ring Gasket Supplier in Malaysia
For companies looking for a BX155 Ring Gasket supplier in Kemaman, Terengganu, Malaysia, STX Engineering Solutions can assist with sourcing API 6A BX type ring joint gaskets, metallic RTJ gaskets, wellhead sealing components, high-pressure flange gaskets, and specialized oilfield spare parts.
STX Engineering Solutions supports customers across the oil & gas, offshore drilling, hydraulic workover, well intervention, marine, petrochemical, and industrial maintenance sectors with industrial equipment sourcing and procurement solutions.
Contact STX Engineering Solutions today with your BX155 ring gasket requirements, material grade, flange specifications, quantity, or technical documentation to request a quotation for the correct high-pressure ring joint gasket.

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