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ONGC Approved Flanges

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ONGC Approved Flanges for Oil & Gas Projects – UAE Manufacturer & Wholesaler

Mcneil Alloys operates from the UAE as a specialised manufacturer, supplier, and exporter of ONGC approved flanges, supporting oil and gas projects where approval status, inspection compliance, and long-term service reliability are essential. Our flanges are supplied for applications governed by project specifications, vendor qualification procedures, and inspection requirements associated with Oil and Natural Gas Corporation.

Flanges supplied for ONGC-linked projects are manufactured in accordance with approved drawings, applicable international standards, and EPC-controlled quality plans. Each product is produced with emphasis on dimensional accuracy, material consistency, and traceability to support inspection and acceptance during project execution.

Materials and Flange Types

Mcneil Alloys offers an extensive range of material grades and flange types approved for ONGC projects.

Materials:

  • Carbon Steel: A105, A350 LF2

  • Alloy Steel: F5, F9, F11, F22, F91

  • Stainless Steel: 304, 316, 321, 347

  • Duplex & Super Duplex: 2205, 2507

  • Nickel Alloys: Inconel, Monel, Hastelloy

Flange Types:

  • Weld Neck (WN)

  • Slip On (SO)

  • Blind (BLRF)

  • Ring Type Joint (RTJ)

  • Socket Weld (SW)

  • Threaded (TH)

  • Orifice & Spectacle Blind Flanges

Inspection, Testing & Traceability

Flanges supplied for ONGC-approved applications are delivered with documentation supporting inspection, verification, and traceability. Typical documentation includes:

  • EN 10204 3.1 / 3.2 material test certificates

  • Positive Material Identification (PMI) reports

  • Non-destructive testing results (UT, RT, MPI, DPI as specified)

  • Mechanical testing records (tensile, impact, hardness)

  • Heat treatment and dimensional inspection reports

  • Full traceability to raw material heat numbers

Approval status applies to project-specific requirements and inspection procedures defined by ONGC and EPC documentation.

UAE-Based Supply & Export Support

From our UAE operations, Mcneil Alloys supports ONGC projects with coordinated manufacturing, inspection scheduling, and export logistics. Our team works closely with clients to review specifications, confirm technical details, and align delivery schedules with project timelines. Flanges are packed for export and delivered inspection-ready to project sites in India, the Middle East, and international locations.

Why Mcneil Alloys Is Selected for ONGC Projects

Clients involved in ONGC-related projects work with Mcneil Alloys because we operate as a single-source manufacturer, supplier, and exporter, ensuring consistency from production through delivery.

Key reasons include:

  • Experience supplying flanges under ONGC project requirements

  • Strong control over material traceability and machining accuracy

  • Capability to support high-pressure and critical service conditions

  • Clear and complete inspection documentation

  • UAE-based coordination for responsive project support

  • Technical assistance throughout the procurement cycle

ONGC Approved Flanges for Reliable Energy Infrastructure

For offshore platforms, refineries, pipelines, and processing facilities operating under ONGC specifications, Mcneil Alloys supplies flanges engineered for approval acceptance and dependable service life. Our focus remains on delivering products that integrate smoothly into project systems and perform reliably throughout their operational lifespan.

Contact Mcneil Alloys to discuss technical requirements, documentation scope, or delivery timelines for your ONGC-related project.

Industries & Applications of ONGC Approved Flanges

Engineered for offshore, energy, and heavy industrial environments, our Lamprell Approved Flanges deliver high-performance, corrosion resistance, and long-term reliability across a wide range of critical applications.

Offshore Platforms

Oil & Gas Fabrication Yards

Pipeline Construction

Refinery Units

Petrochemical Complexes

Export & Gas Processing Facilities

FPSO Modules & Topsides

Drilling Rig Maintenance & Construction

Frequently Asked Questions – ONGC Approved Flanges

What does “approved” usually mean for flanges used on ONGC projects? +
For most ONGC projects, approval is linked to how closely a flange matches the project’s technical requirements, inspection scope, and documentation standards rather than only the product name. Flanges are typically reviewed as part of a vendor qualification or EPC approval process defined by Oil and Natural Gas Corporation project documentation, with strong emphasis on material traceability, testing results, and compliance with drawings.
Are ONGC approved flanges different from standard industrial flanges? +
Yes. While the base materials and dimensions may be similar, flanges supplied for ONGC projects usually require stricter inspection, more detailed documentation, and tighter control over manufacturing and traceability. These project-specific requirements distinguish approved supply from general stock material.
Can ONGC approved flanges be supplied from the UAE without issues? +
Yes. Many ONGC-related projects source flanges from outside India, including the UAE, provided the products meet project specifications and inspection requirements. The key factors are complete documentation, inspection readiness, and alignment with EPC and project approval procedures.
When should flange requirements be finalized for an ONGC project? +
Ideally, flange requirements should be finalized once the piping class, pressure rating, and inspection scope are confirmed. Early clarification helps avoid delays later in the project, especially where third-party inspection or document review is involved. Finalizing material grades, testing requirements, and delivery timelines upfront generally leads to smoother approval and execution.
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