Plate Flange

Plate Flange is a flat flange manufactured from steel plate and machined to required dimensions and drilling patterns. Plate Flange is commonly used in low pressure and medium pressure piping systems where cost efficiency and easy manufacturing are important. Plate Flange is widely used in water treatment plants, chemical plants, offshore structures, pipelines and industrial piping systems.

Typically manufactured according to EN 1092-1 Type 01 or similar plate flange standards. In many piping projects, Plate Flange is supplied together with stainless steel pipes and fittings as part of a complete piping material package.

Specifications / Standards

Manufactured according to international flange standards and project specifications. Dimensions, drilling patterns and pressure ratings are controlled according to applicable standards.

Common standards include:

• EN 1092-1 Type 01 Plate Flange
• ASME B16.5
• DIN Plate Flange Standards
• ISO Flange Standards
• MSS Standards

Often used in European standard piping systems and water, chemical and industrial piping systems. Plate Flange may be supplied together with butt weld pipe fittings and pipes for complete piping system procurement.

Material Grades

Manufactured in various materials depending on project requirements and service conditions.

Common material grades include:

Carbon Steel
• ASTM A36
• ASTM A105
• S235JR / S275JR / S355JR

Stainless Steel
• ASTM A240 TP304 / TP304L
• ASTM A240 TP316 / TP316L

Duplex Stainless Steel
• UNS S31803
• UNS S32750

Nickel Alloys
• Alloy 625 (N06625)
• Alloy 825 (N08825)
• Alloy C276 (N10275)

Material selection depends on pressure, temperature, corrosion environment and project specifications.

Size Range

Size range typically includes:

• Size: DN15 to DN2000
• Pressure Rating: PN6 / PN10 / PN16 / PN25 / PN40
• Facing Type: Raised Face, Flat Face
• Drilling according to EN or DIN standards

Large diameter Plate Flange is commonly manufactured from steel plates and machined according to project drawings and specifications.

Manufacturing Process

Manufactured from steel plate rather than forged materials. The manufacturing process typically includes plate cutting, machining and drilling operations.

Typical manufacturing process includes:

• Raw material inspection
• Plate cutting
• Rough machining
• Finish machining
• Drilling
• Marking and traceability control
• Final inspection

For project supply, Plate Flange may be supplied together with prefabrication pipe spools and piping components to reduce site installation work and improve construction efficiency.

Inspection & Testing

Inspection and testing are performed according to project specifications and applicable standards.

Typical inspection includes:

• Visual inspection
• Dimensional inspection
• PMI if required
• Mechanical testing if required
• Flatness inspection
• Drilling inspection
• Third-party inspection
• EN 10204 3.1 / 3.2 certification

Material traceability can be maintained from raw material plate to final Plate Flange marking and documentation package.

Applications / Industries

Widely used in industrial piping systems across many industries:

• Water Treatment Plants
• Chemical Plants
• Offshore Structures
• Oil & Gas Facilities
• Petrochemical Plants
• Power Plants
• Desalination Plants
• Industrial Pipelines
• Storage Tank Piping Systems

Commonly used in low pressure piping systems, large diameter pipelines and water or utility piping systems.

Packaging & Delivery

Packed in wooden cases or wooden pallets suitable for international transportation. Protective coating or anti-rust oil is applied to prevent corrosion during shipment and storage.

Each flange marking typically includes:

• Size
• Pressure rating
• Material grade
• Heat number
• Standard
• Manufacturer identification

Shipping documents include packing list, commercial invoice, mill test certificates and inspection reports.

Coating Vanish, yellow paint, anti-rust oil, galvanizing etc

Why Choose Us

We supply Plate Flange not only as individual flange products but also as part of engineered piping material packages for EPC contractors, project owners and industrial stockists.

Our supply scope includes pipes, fittings, flanges, plates, bars and prefabricated piping components manufactured according to international standards and project specifications.

With experience in supplying materials for oil & gas, petrochemical, offshore, LNG, power plant and industrial projects, we understand project documentation requirements, inspection procedures and material traceability systems required by EPC contractors and end users.