Technical Specifications for Oilfield & Drilling Flanges
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| Specification |
Technical Details |
| Standards |
API 6A, ASME B16.5, MSS SP-44, DIN, EN 1092-1 |
| Size Range |
1/2” NB to 48” NB (Standard & Custom Sizes) |
| Pressure Ratings |
150#, 300#, 600#, 900#, 1500#, 2500#, API 2000 – 15000 PSI |
| Flange Faces |
Ring Type Joint (RTJ), Raised Face (RF), Flat Face (FF) |
| Manufacturing |
Forged, Machined, Heat Treated |
| Certifications |
EN 10204 3.1 / 3.2, NACE MR0175, ISO 9001:2015 |
Material Grades Available for NOV Projects
We maintain a massive inventory of raw materials to ensure the fastest lead times for urgent drilling requirements.
- Corrosion Resistant Alloys (CRA)
- Stainless Steel: ASTM A182 F304/L, F316/L, F321, F347
- Duplex & Super Duplex: ASTM A182 F51, F53, F55 (Ideal for sour service)
- Nickel Alloys: Inconel 625, 718, Hastelloy C276, Monel 400
- High-Yield Carbon & Alloy Steel
- Carbon Steel: ASTM A105, A350 LF2 (Low Temp), A694 F42-F70
- Alloy Steel: ASTM A182 F5, F9, F11, F22
Types of NOV Compliant Flanges We Manufacture
As a specialist flange exporter in UAE, we supply a full range of configurations tailored for oilfield infrastructure:
- Weld Neck Flanges: Preferred for high-pressure, sub-zero, or elevated temperature conditions.
- Blind Flanges: Used to seal the end of piping systems or pressure vessel openings.
- RTJ (Ring Type Joint) Flanges: High-integrity sealing for high-pressure oil and gas applications.
- Orifice & Anchor Flanges: Specifically designed for flow measurement and pipeline restraint.
- Long Weld Neck (LWN): For nozzle connections in pressure vessels and refinery equipment.
Quality Assurance & Third-Party Inspection (TPI)
Every flange supplied for NOV-related projects undergoes a stringent verification process to ensure zero-defect delivery:
- 100% Positive Material Identification (PMI)
- Non-Destructive Testing (NDT): Ultrasonic (UT), Magnetic Particle (MPI), and Dye Penetrate (DPI).
- Hydrostatic Pressure Testing for pressure-retaining integrity.
- Visual & Dimensional Inspection to verify machining tolerances.
- Compliance documentation ready for BV, SGS, TUV, and Lloyd’s Register audits.
Why Choose Mcneil Alloys as your UAE Flange Partner?
- Strategic Location: Our UAE base allows for rapid deployment to Middle Eastern oilfields (Saudi Arabia, Oman, Kuwait, Iraq) and international ports.
- Single-Source Manufacturing: From forging to final machining and export packaging, we handle the entire lifecycle under one roof.
- Project Documentation: We specialize in the complex “Data Books” required by EPCs, including MTC 3.2, heat treatment charts, and compliance certificates.
- Urgent Break-Down Support: We offer expedited production cycles for rig-down situations.
Contact the Leading Flange Supplier in UAE
Mcneil Alloys is ready to support your next drilling or oilfield project with certified NOV flange solutions. Our technical team can assist with specification reviews and provide competitive commercial bids.
