Joining, flanges and sealing
European-standard flange
Creating a detachable joint between piping, valves and equipment
Specialist selection guide
What should be reviewed before selecting this product?
European-standard flange belongs to the Industrial flanges family. Technical selection must start from actual service conditions, followed by verification of dimensions, pressure-temperature duty, material, connection, construction standard, testing and manufacturer documentation against the project piping class.
Technical selection path
- 1
Extract standard and class from the project specification and verify it against the manufacturer proposal
- 2
Extract nominal size from the project specification and verify it against the manufacturer proposal
- 3
Extract facing from the project specification and verify it against the manufacturer proposal
- 4
Extract material and grade from the project specification and verify it against the manufacturer proposal
- 5
Extract pipe schedule from the project specification and verify it against the manufacturer proposal
- 6
Extract drilling and dimensions from the project specification and verify it against the manufacturer proposal
Key strengths
- Selection within the established Industrial flanges family
- Compatibility review across project materials and connections
- Structured technical comparison before final enquiry
Selection limitations
- A trade name or product name alone does not define the technical specification
- Pressure-temperature limits depend on material, design and standard edition
- Substitution requires dimensional, functional and documentation verification
Typical applications
Where can this option be considered?
- Evaluation for Oil and gas projects subject to service-condition approval
- Evaluation for Refining projects subject to service-condition approval
- Evaluation for Petrochemical projects subject to service-condition approval
Reference standards
A standard does not replace the project specification
ASME B16.5Reference relevant to European-standard flange selection, dimensions, materials or testing; the required edition must be stated in the orderASME B16.47Reference relevant to European-standard flange selection, dimensions, materials or testing; the required edition must be stated in the orderASME B16.36Reference relevant to European-standard flange selection, dimensions, materials or testing; the required edition must be stated in the orderAPI 6AReference relevant to European-standard flange selection, dimensions, materials or testing; the required edition must be stated in the order
Common technical questions
Concise answers before enquiry
What information is required to enquire about European-standard flange?
At minimum provide standard and class, nominal size, facing, material and grade, pipe schedule and fluid conditions. Final documentation requirements follow the project specification.
Are two European-standard flange products with the same name interchangeable?
No. Installation dimensions, pressure-temperature rating, wetted materials, connection, test method and material certification must be checked independently.
Locations requiring assembly, inspection or periodic maintenance
Standard, class, material group, facing, gasket and bolting
Initial review sheet
Technical attributes to review
Final values must come from project specifications, calculations and manufacturer data. This table defines the information scope.
FamilyIndustrial flanges
Main groupJoining, flanges and sealing
Materials to evaluateCarbon steel, Stainless steel, Alloy steel, Low-temperature steel
Connections to evaluateWelded, Threaded, Socket, Loose/lap
Typical mediaAll piping services
Relevant industriesOil and gas, Refining, Petrochemical, Power generation, Water and utilities
Reference standardsASME B16.5 · ASME B16.47 · ASME B16.36 · API 6A · EN 1092-1 · BS 10
Enquiry checklist
Include this information with your request
Standard and class
Nominal size
Facing
Material and grade
Pipe schedule
Drilling and dimensions
Before substitution
A matching name does not guarantee interchangeability
Installation dimensions, pressure rating, wetted materials, sealing design, construction standard, testing and documentation must be checked independently.
Adjacent types
Other options in this family
Final technical approval is required
This page is educational and intended for initial screening. Final selection must be approved against project requirements, actual service conditions and manufacturer documentation.
Send request for review