IBR Approved Flanges
Mcneil Instruments is a leading manufacturer, supplier, and exporter of IBR-approved flanges in India. Our flanges are manufactured using high-grade raw materials and advanced technology, meeting both national and international standards. We offer stainless steel IBR-approved flanges up to Class 2500, rigorously tested for quality assurance before packaging. Our flanges comply with ASTM, ASME, API, AISI, BS, ANSI, DIN, JIS, MSSP, and NACE standards. Mcneil Instruments provides customized IBR-approved flanges to meet diverse industrial requirements, ensuring durability, corrosion resistance, and precision engineering.
What is an IBR Flange?
IBR flanges are manufactured according to the Indian Boiler Regulation (IBR), ensuring compliance with material grades, dimensions, and pressure classes. These flanges are designed to provide a leak-proof connection, maintain a smooth material flow, and withstand extreme temperatures and corrosion. Mcneil Instruments specializes in manufacturing, supplying, and exporting high-quality IBR flanges at competitive prices worldwide.
Standard Specifications of IBR Approved Flanges
| Specification | Details |
| Size Chart | 1/2″ to 48″ |
| Pressure Rating (ANSI) | 150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS |
| UNI | 6Bar, 10Bar, 16Bar, 25Bar, 40Bar |
| DIN Pressure Calculation | PN6, PN10, PN16, PN25, PN40, PN64 |
| JIS Standards | 5K, 10K, 16K, 20K, 30K, 40K, 63K |
| Coating Options | Zinc Plated, Anti-rust Paint, Black Oil Paint, Cold/Hot Dip Galvanized, Yellow Transparent |
| Production Technique | Forged, Heat-treated, and Machined |
| Connect Type/ Flange Face Type | Flat Face (FF), Raised Face (RF), Ring Type Joint (RTJ), Lap-Joint Face (LJF), Small Male-Female (SMF), Large Male-Female (LMF), Large Tongue & Groove, Small Tongue |
| Testing Methods | Ultrasonic Flaw Detection, X-ray Testing, Magnetic Particle Testing, Hydrostatic Testing |
| Origin | India, USA, Japan, West Europe, Korea |
Dimension Table of IBR Approved Flanges
| Standard | Class | Diameter (mm) | Bolt Circle Diameter (mm) | Number of Bolts | Bolt Size | Diameter of Bolt Hole (mm) |
| AS4087 | PN14 | 95 | 67 | 4 | M12 | 14 |
| AS 2129 | Table D | 95 | 67 | 4 | 13 | 14 |
| ANSI B16.5 | 150 | 89 | 60 | 4 | 13 | 16 |
| ISO 7005 (DIN) | PN16 | 95 | 65 | 4 | M12 | 14 |
Difference Between IBR and Non-IBR Flanges
| Feature | IBR Flanges | Non-IBR Flanges |
| Regulatory Compliance | Governed by Indian Boiler Regulations | Not governed by IBR standards |
| Usage | Suitable for boilers and high-pressure applications | Used in general industrial applications |
| Material Standards | Requires certified materials and specific grades | Can use varied materials without specific certifications |
| Testing & Inspection | Mandatory testing (ultrasonic, hydrostatic) | Standard industry testing may apply |
| Application Areas | Power plants, oil & gas, chemical industries | General piping, water supply, construction |
IBR Approved Flanges – Grades and Materials
| Material Grade | Description |
| Carbon Steel ASTM A105 Gr. F42-F70 | Suitable for high-pressure and temperature environments |
| Stainless Steel (SS) | Offers corrosion resistance and durability |
| Alloy Steel | High strength for extreme environments |
| Duplex & Super Duplex Steel | Ideal for offshore and marine applications |
At Mcneil Instruments, we are committed to providing high-quality IBR-approved flanges with customized solutions to meet the specific needs of our global clientele.
Products
Types of IBR Approved Flanges
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Saudi Aramco Approved Flanges
Takreer Approved Flanges
ADNOC Approved Flanges
BP Approved Flanges
PDO Approved Flanges
Technip Approved Flanges
Sabic Approved Flanges
Petro Rabigh Approved Flanges
Lamprell Approved Flanges
Qatar Gas Approved Flanges
Qatar Petroleum Flanges
Gpic Flanges Approved
Saudi Electric Company Approved Flanges
