Flanges
Carbon Steel Flange
Carbon steel flanges for connecting carbon steel pipelines, valves and equipment across project-specific pressure classes, sizes and standards.
Materials
Reference Standards
Industries
Applications
Installation position: At both sides of valves, equipment interfaces, pipeline maintenance sections, road crossings and structure inlets or outlets.
Purpose: Provides a detachable rigid connection between pipes, valves and equipment.
Problem solved: Supports maintenance, valve replacement and sectional dismantling, while enabling rapid connection where welding is impractical.
Selection and procurement checks
Flange connections require matching nominal size, pressure class, facing and bolt-hole dimensions. For valves or equipment, confirm the mating flange, gasket and fasteners together. Ordering by pipe diameter alone does not establish interface compatibility.
Information required for quotation
- Flange type, nominal size and pressure class
- Facing, bore and bolt-hole drawing
- Material grade and matching gasket and fastener requirements
The materials and standards listed on this page identify reference procurement options. They do not imply that different grades, standards or product forms are interchangeable. Specify the governing standard, material grade, dimensions and inspection requirements in your purchase list; the agreed technical documents define the supply scope.
Include the quantity for each size, delivery destination, required arrival date, and any packaging, marking or documentation requirements so that the supply scope and delivery arrangements can be checked item by item.
Quality and inspection documents
Please state whether the order requires a Mill Test Certificate (MTC/MTR), an EN 10204 type 3.1 inspection certificate, heat or batch traceability, or other inspection records. The document type, applicable material and availability must be confirmed for the specific order. EN 10204 type 3.2 involves additional independent inspection requirements and must be agreed separately before supply.