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.

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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

SpecificationDetails
Size Chart1/2″ to 48″
Pressure Rating (ANSI)150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS
UNI6Bar, 10Bar, 16Bar, 25Bar, 40Bar
DIN Pressure CalculationPN6, PN10, PN16, PN25, PN40, PN64
JIS Standards5K, 10K, 16K, 20K, 30K, 40K, 63K
Coating OptionsZinc Plated, Anti-rust Paint, Black Oil Paint, Cold/Hot Dip Galvanized, Yellow Transparent
Production TechniqueForged, Heat-treated, and Machined
Connect Type/ Flange Face TypeFlat 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 MethodsUltrasonic Flaw Detection, X-ray Testing, Magnetic Particle Testing, Hydrostatic Testing
OriginIndia, USA, Japan, West Europe, Korea

Dimension Table of IBR Approved Flanges

 

StandardClassDiameter (mm)Bolt Circle Diameter (mm)Number of BoltsBolt SizeDiameter of Bolt Hole (mm)
AS4087PN1495674M1214
AS 2129Table D956741314
ANSI B16.5150896041316
ISO 7005 (DIN)PN1695654M1214

Difference Between IBR and Non-IBR Flanges

FeatureIBR FlangesNon-IBR Flanges
Regulatory ComplianceGoverned by Indian Boiler RegulationsNot governed by IBR standards
UsageSuitable for boilers and high-pressure applicationsUsed in general industrial applications
Material StandardsRequires certified materials and specific gradesCan use varied materials without specific certifications
Testing & InspectionMandatory testing (ultrasonic, hydrostatic)Standard industry testing may apply
Application AreasPower plants, oil & gas, chemical industriesGeneral piping, water supply, construction

IBR Approved Flanges – Grades and Materials

Material GradeDescription
Carbon Steel ASTM A105 Gr. F42-F70Suitable for high-pressure and temperature environments
Stainless Steel (SS)Offers corrosion resistance and durability
Alloy SteelHigh strength for extreme environments
Duplex & Super Duplex SteelIdeal 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.

Types of IBR Approved Flanges

Kuwait KOC Approved Flanges

KOC Approved Flanges

Flanges approved by Kuwait Oil Company, ensuring high quality and performance standards. Suitable for oil, gas, and petrochemical applications.
Best Saudi Arabia Saudi Aramco Approved Flanges

Saudi Aramco Approved Flanges

Certified for use in Saudi Aramco projects, these flanges meet strict industry requirements. Ideal for energy and infrastructure sectors.

Takreer Approved Flanges

Approved by Abu Dhabi Oil Refining Company (Takreer), these flanges are built for refinery and process plant operations.
Qatar Sabic Approved Flanges

ADNOC Approved Flanges

Tested and certified for ADNOC standards, offering reliability in offshore and onshore applications. Widely used in the UAE energy sector.
Exxon Approved Flanges - Mcneil Instrument

BP Approved Flanges

Flanges approved by British Petroleum, ensuring global quality compliance. Suitable for demanding oil and gas operations.
Best Oman PDO Approved Flanges

PDO Approved Flanges

Certified for Petroleum Development Oman projects, these flanges provide strength and durability. Common in upstream and midstream facilities.
Best Saudi Arabia IBR Approved Buttweld Flanges

Technip Approved Flanges

Endorsed by Technip, these flanges comply with international engineering project requirements. Perfect for EPC and industrial use.
USA Sabic Approved Flanges

Sabic Approved Flanges

Approved for use in SABIC operations, offering superior chemical resistance. Ideal for petrochemical and industrial manufacturing.
Best KNPC Approved Flanges Manufacturer, Supplier, and Exporter

Petro Rabigh Approved Flanges

Certified for Petro Rabigh projects, ensuring quality for refinery and chemical operations. Trusted in the Saudi energy sector.
Saudi Arabia KOC Approved Flanges

Lamprell Approved Flanges

Compliant with Lamprell's specifications, designed for offshore and fabrication services. Preferred in marine and rig-based applications.

Qatar Gas Approved Flanges

Approved by Qatar Gas, these flanges are engineered for LNG and gas processing applications. Reliable under high-pressure conditions.

Qatar Petroleum Flanges

Manufactured to Qatar Petroleum’s standards, ensuring durability and corrosion resistance. Used in oil, gas, and offshore units.

Gpic Flanges Approved

Certified for use in Gulf Petrochemical Industries Company operations. Suitable for chemical, fertilizer, and energy production facilities.

Saudi Electric Company Approved Flanges

Approved for SEC installations, providing stability in power generation setups. Trusted in high-voltage and energy networks.
Best UAE IBR Approved Buttweld Flanges

Dolphin Approved Flanges

Flanges meeting Dolphin Energy project requirements. Ideal for gas transportation and cross-border pipeline systems.