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Flanges

Carbon Steel Blind Flange

Carbon steel blind flanges for pipeline end closure, maintenance isolation and pressure testing to project specifications.

碳钢盲板

Materials

Q235B20# Carbon SteelASTM A105

Reference Standards

ASME B16.5ASME B16.47GB/T 9124EN 1092

Industries

Water ProjectsChemical PlantsPower Plants

Applications

End ClosureMaintenance IsolationEquipment Interfaces

Selection and procurement checks

Blind flanges cover the listed end closure, maintenance isolation and reserved interface applications. Check mating flange dimensions, pressure class and facing, with thickness and material confirmed against project drawings. The project technical documents govern the isolation arrangement.

Information required for quotation

  • Nominal size, pressure class and facing
  • Mating flange bolt pattern and thickness requirement
  • Material, 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.

View quality document information

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