Orifice Flanges
| Specification | Details |
|---|---|
| Product Name | Orifice Flanges |
| Material Grade | Carbon Steel / Stainless Steel / Alloy Steel / Nickel Alloys / Titanium / Duplex Stainless Steel, as applicable |
| Material Type | Forged Metallic Flange |
| Manufacturing Type | Forged / Hot Forged / Precision Machined |
| Flange Standard | ASME B16.5 / ASME B16.47 and other applicable standards |
| Material Standards | ASTM / ASME / EN / DIN / JIS and other applicable specifications |
| Size | 1/2″ to 24″ or As per Customer Requirement |
| Pressure Class | Class 150 / 300 / 600 / 900 / 1500 / 2500, as applicable |
| Connection Type | Flanged Orifice Connection |
| Facing Type | Raised Face / Flat Face / Ring Type Joint, as applicable |
| Bore Type | Standard Bore / Orifice Bore / Customized Bore |
| Orifice Configuration | Precision-Machined Orifice Bore with Provision for Differential Pressure Measurement |
| Pressure Tappings | Corner Taps / Flange Taps / As per Applicable Standard and Customer Requirement |
| Surface Finish | Machined / Polished / As Specified |
| Dimensions | As per ASME B16.5 / ASME B16.47 and Customer Requirements |
| Heat Treatment | As per Applicable Material Specification |
| MTC | EN 10204 3.1 / 3.2 |
| Testing | Chemical / Mechanical / Dimensional / Hardness / Visual / PMI and Other Tests as Required |
| Tensile Strength | As per Applicable Material Specification and Grade |
| Yield Strength | As per Applicable Material Specification and Grade |
| Elongation | As per Applicable Material Standard |
| Corrosion Resistance | Depends on the selected material grade and service environment |
| High-Temperature Performance | Depends on material grade and applicable service limits |
| Welding | Suitable for welding using appropriate procedures for the selected material grade |
| Fabrication | Suitable for precision machining and fabrication using grade-specific procedures |
| Dimensional Accuracy | Precision dimensions according to applicable flange and orifice requirements |
| Customization | Size / Material Grade / Pressure Class / Facing / Orifice Bore / Tappings / Dimensions / Finish / Testing and Documentation |
| Inspection | Dimensional / Visual and Material Inspection as Required |
| Marking | Size / Grade / Standard / Class / Facing and Heat/Batch Identification as Applicable |
| Origin | European / American / Japanese / Korean and Other Approved Origins |
| Export Supply | Worldwide Orifice Flanges Export Supply |
| Exporter Support | Technical Specifications / Inspection / Certification / Export Packing / Documentation and International Shipment Coordination |
| Applications | Oil & Gas / Petrochemical / Chemical Processing / Power Generation / Water Treatment / Refinery / Process Industries and Flow Measurement Systems |
1. Most Common Types of Orifice Flanges
| Type | Details |
|---|---|
| Weld Neck Orifice Flanges | Designed with a tapered hub and used for reliable orifice flow measurement connections in demanding piping systems. |
| Slip-On Orifice Flanges | Slides over the pipe and can be used for suitable general-purpose flow measurement applications. |
| Threaded Orifice Flanges | Features internal threads and is suitable for compatible threaded piping systems where welding is not preferred. |
| Raised Face Orifice Flanges | Provides a raised sealing surface and is commonly selected for standard gasketed connections. |
| Flat Face Orifice Flanges | Features a flat sealing surface for applications requiring flat-face flange arrangements. |
| Ring Type Joint Orifice Flanges | Features an RTJ groove for high-integrity sealing in suitable high-pressure services. |
| Stainless Steel Orifice Flanges | Suitable for flow measurement systems requiring good corrosion resistance and reliable mechanical performance. |
| Carbon Steel Orifice Flanges | Commonly used in oil & gas, petrochemical, refinery and general process piping applications. |
| Duplex Orifice Flanges | Offers high mechanical strength and good resistance to chloride corrosion, pitting and stress-corrosion cracking. |
| Super Duplex Orifice Flanges | Suitable for demanding corrosive environments requiring enhanced localized corrosion resistance. |
| Nickel Alloy Orifice Flanges | Used in chemical and corrosive services where specialized nickel alloy performance is required. |
| Customized Orifice Flanges | Manufactured according to customer drawings, orifice bore, pressure tappings, material grade, size, facing and testing requirements. |
2. Orifice Flanges – Technical Specifications
| Specification | Details |
|---|---|
| Product Name | Orifice Flanges |
| Material Grade | Carbon Steel / Stainless Steel / Alloy Steel / Nickel Alloys / Titanium / Duplex Stainless Steel, as applicable |
| Material Type | Forged Metallic Flange |
| Manufacturing Type | Forged / Hot Forged / Precision Machined |
| Flange Standard | ASME B16.5 / ASME B16.47 and other applicable standards |
| Material Standards | ASTM / ASME / EN / DIN / JIS and other applicable specifications |
| Size | 1/2″ to 24″ or As per Customer Requirement |
| Pressure Class | Class 150 / 300 / 600 / 900 / 1500 / 2500, as applicable |
| Connection Type | Flanged Orifice Connection |
| Facing Type | Raised Face / Flat Face / Ring Type Joint, as applicable |
| Bore Type | Standard Bore / Orifice Bore / Customized Bore |
| Orifice Configuration | Precision-Machined Orifice Bore for Differential Pressure Flow Measurement |
| Pressure Tappings | Corner Taps / Flange Taps / As per Applicable Standard and Customer Requirement |
| Surface Finish | Machined / Polished / As Specified |
| Dimensions | As per ASME B16.5 / ASME B16.47 and Customer Requirements |
| Heat Treatment | As per Applicable Material Specification |
| MTC | EN 10204 3.1 / 3.2 |
| Testing | Chemical / Mechanical / Dimensional / Hardness / Visual / PMI and Other Tests as Required |
| Tensile Strength | As per Applicable Material Specification and Grade |
| Yield Strength | As per Applicable Material Specification and Grade |
| Elongation | As per Applicable Material Standard |
| Corrosion Resistance | Depends on the selected material grade and service environment |
| High-Temperature Performance | Depends on material grade and applicable service limits |
| Welding | Suitable for welding using appropriate procedures for the selected material grade |
| Fabrication | Suitable for precision machining and fabrication using grade-specific procedures |
| Dimensional Accuracy | Precision dimensions according to applicable flange and orifice requirements |
| Customization | Size / Material Grade / Pressure Class / Facing / Orifice Bore / Tappings / Dimensions / Finish / Testing and Documentation |
| Inspection | Dimensional / Visual and Material Inspection as Required |
| Marking | Size / Grade / Standard / Class / Facing and Heat/Batch Identification as Applicable |
| Origin | European / American / Japanese / Korean and Other Approved Origins |
| Export Supply | Worldwide Orifice Flanges Export Supply |
| Exporter Support | Technical Specifications / Inspection / Certification / Export Packing / Documentation and International Shipment Coordination |
| Applications | Oil & Gas / Petrochemical / Chemical Processing / Power Generation / Water Treatment / Refinery / Process Industries and Flow Measurement Systems |
3. Orifice Flanges – Supply & Quality Details
| Parameter | Details |
|---|---|
| Material Identification | As per Selected Material Grade and Applicable Specification |
| Flange Configuration | Weld Neck / Slip-On / Threaded / Other Orifice Flange Configurations |
| Size Range | 1/2″ to 24″ or As per Requirement |
| Pressure Classes | Class 150 / 300 / 600 / 900 / 1500 / 2500 |
| Applicable Standards | ASME B16.5 / ASME B16.47 and applicable ASTM, ASME, EN, DIN or JIS specifications |
| Facing Options | Raised Face / Flat Face / Ring Type Joint |
| Orifice Bore | Precision-Machined Bore as per Flow Measurement Requirements |
| Pressure Tappings | Corner Taps / Flange Taps / Customized Tapping Arrangement |
| Surface Finish | Machined / Polished / As Specified |
| Heat Treatment | As per Applicable Material Specification |
| Testing | Chemical / Mechanical / Dimensional / Hardness / Visual / PMI / Other Tests |
| Inspection | Dimensional / Visual and Material Inspection |
| Certification | EN 10204 3.1 / 3.2 |
| Marking | Size / Grade / Standard / Class / Facing and Heat/Batch Identification |
| Material Traceability | Heat Number and Batch Identification as Applicable |
| Customization | Material / Size / Pressure Class / Facing / Orifice Bore / Pressure Tappings / Dimensions / Finish / Testing |
| Packaging | Export-Worthy Wooden Cases, Boxes, Pallets or Customized Packaging |
| Documentation | MTC / Inspection Reports / Test Certificates and Other Documents as Required |
| Export Supply | Worldwide Orifice Flanges Supply |
| Applications | Oil & Gas / Petrochemical / Chemical Processing / Power Generation / Water Treatment / Refinery / Process Industries and Flow Measurement Systems |
Most Common Types Of Orifice Flanges
| Type | Details |
|---|---|
| Weld Neck Orifice Flanges | Designed with a tapered hub and precision orifice bore, providing a robust connection for demanding flow measurement applications. |
| Slip-On Orifice Flanges | Slides over the pipe before welding and is suitable for compatible general-purpose flow measurement systems. |
| Threaded Orifice Flanges | Features internal threads for connection with compatible threaded piping where welding is not preferred. |
| Raised Face Orifice Flanges | Provides a raised sealing surface for use with suitable gaskets in standard process piping systems. |
| Flat Face Orifice Flanges | Features a flat sealing surface for applications requiring flat-face connections. |
| Ring Type Joint Orifice Flanges | Incorporates an RTJ groove for suitable high-integrity sealing in demanding pressure services. |
| Stainless Steel Orifice Flanges | Suitable for flow measurement applications requiring corrosion resistance and reliable mechanical performance. |
| Carbon Steel Orifice Flanges | Commonly used in oil & gas, refinery, petrochemical and general process piping systems. |
| Duplex Orifice Flanges | Offers high mechanical strength with good resistance to chloride corrosion, pitting and stress-corrosion cracking. |
| Super Duplex Orifice Flanges | Suitable for highly corrosive environments requiring enhanced resistance to localized corrosion. |
| Nickel Alloy Orifice Flanges | Used in chemical and aggressive process environments requiring specialized nickel alloy properties. |
| Customized Orifice Flanges | Manufactured according to customer requirements for material grade, size, pressure class, orifice bore, pressure tappings, facing and dimensions. |
Why Should You Buy Orifice Flanges from Metalx Nickel & Alloys?
- Experienced Orifice Flanges Supplier & Exporter serving international buyers, importers, distributors, EPC contractors, stockholders, traders and industrial end users.
- 20+ Years of Flange & Alloy Industry Experience in supplying and exporting high-performance, corrosion-resistant and specialty alloy flanges to customers across the UAE, Saudi Arabia, Qatar, Oman, Kuwait, Bahrain, Africa, Europe, Asia and other global markets.
- Specialized Orifice Flanges Exporter offering Orifice Flanges in carbon steel, stainless steel, alloy steel, nickel alloys, titanium, duplex and other suitable materials according to applicable international standards and customer requirements.
- Global Orifice Flanges Sourcing Network with access to reputed mills, manufacturers, authorized suppliers and approved stockholders across the USA, Europe, Japan, South Korea and other major international supply markets.
- Reliable Orifice Flanges Supplier providing flanges for flow measurement systems requiring precision-machined orifice bores, accurate pressure-tapping arrangements, dimensional accuracy, reliable sealing and dependable performance under suitable pressure and temperature conditions.
- Wide Specialty Flanges Range including Orifice Flanges, Weld Neck Flanges, Slip-On Flanges, Blind Flanges, Socket Weld Flanges, Threaded Flanges, Lap Joint Flanges, Stainless Steel Orifice Flanges, Carbon Steel Orifice Flanges, Duplex Orifice Flanges, Super Duplex Orifice Flanges, Nickel Alloy Orifice Flanges and Titanium Orifice Flanges.
| Key Feature | Details |
|---|---|
| Flow Measurement | Specifically designed for use with orifice plates and differential pressure flow measurement systems. |
| ASME Standard | Manufactured according to applicable ASME B16.36 requirements. |
| Multiple Materials | Available in Carbon Steel, Stainless Steel, Alloy Steel, Duplex, Super Duplex, Nickel Alloys and other specified materials. |
| Pressure Classes | Available in Class 150, 300, 600, 900, 1500 and 2500, as applicable. |
| Pressure Tappings | Integrated pressure tapping provisions support connection to differential pressure measurement instruments. |
| Multiple Facing Options | Available with RF, FF and RTJ configurations depending on application requirements. |
| Thread Options | Pressure tapping connections can be supplied with NPT or other specified thread types. |
| Orifice Plate Compatibility | Designed for suitable installation with compatible orifice plates for flow measurement applications. |
| High-Pressure Applications | Suitable for selected high-pressure piping systems when correctly specified for operating conditions. |
| High-Temperature Applications | Suitable for selected elevated-temperature services depending on material grade and service limits. |
| Corrosion Resistance | Suitable corrosion resistance can be achieved through appropriate material selection for the process environment. |
| Media Compatibility | Suitable for flow measurement of liquids, gases, steam and various industrial process media. |
| Reliable Sealing | Precision-machined flange surfaces and appropriate facing configurations support dependable gasketed connections. |
| Customization | Bore, tapping arrangement, material, size, pressure class, facing and other requirements can be customized. |
| Documentation | MTC and inspection documentation can be supplied according to customer and project requirements. |
| Wide Applications | Used in oil & gas, refinery, petrochemical, chemical, power, water treatment and general process industries. |
| Specification | Details |
|---|---|
| Product Name | Orifice Flanges |
| Standard | ASME B16.36 |
| Dimensional Reference | ASME B16.5 / ASME B16.47 where applicable |
| Size | As per Customer Requirement |
| Pressure Class | Class 150 / 300 / 600 / 900 / 1500 / 2500 |
| Facing | Raised Face (RF) / Flat Face (FF) / Ring Type Joint (RTJ) |
| Material | Carbon Steel / Stainless Steel / Alloy Steel / Duplex / Super Duplex / Nickel Alloys and Other Suitable Materials |
| Pressure Tappings | Threaded / As Specified |
| Thread Type | NPT / As Required |
| Connection Type | Flanged Connection for Flow Measurement Systems |
| Orifice Plate Compatibility | Designed for use with Compatible Orifice Plates and Differential Pressure Measurement Systems |
| Manufacturing | As per Applicable Standard and Customer Specification |
| Surface Finish | Machined / As Specified |
| Testing | Dimensional / Visual / Material and Other Tests as Required |
| Inspection | As Required by Customer / Project Specification |
| Documentation | MTC and Inspection Documents Available as Required |
| Customization | Size / Material Grade / Pressure Class / Facing / Tapping Arrangement / Thread Type and Dimensions |
| Applications | Oil & Gas / Refineries / Petrochemical / Chemical Processing / Power Plants / Steam Systems / Water Treatment and Process Industries |
| Export Supply | Domestic and International Industrial Supply |
1. What are Orifice Flanges?
Orifice Flanges are specially designed flanges used with orifice plates for differential pressure flow measurement in piping systems. They include provisions for pressure tapping connections.
2. Which standard is used for Orifice Flanges?
Orifice Flanges are commonly manufactured according to ASME B16.36 , with dimensional references to ASME B16.5 or ASME B16.47 where applicable.
3. What materials are available for Orifice Flanges?
They can be supplied in Carbon Steel, Stainless Steel, Alloy Steel, Duplex, Super Duplex, Nickel Alloys, Inconel, Incoloy, Hastelloy, Monel and other materials according to the service requirements.
4. What pressure classes are available?
Common pressure classes include Class 150, 300, 600, 900, 1500 and 2500 , subject to the applicable size, material and standard.
5. What pressure tapping and facing options are available?
Orifice Flanges can be supplied with threaded pressure tappings , commonly NPT, or as specified. Facing options include Raised Face (RF), Flat Face (FF) and Ring Type Joint (RTJ) .
6. Where are Orifice Flanges commonly used?
Orifice Flanges are widely used in oil gas pipelines, refineries, petrochemical plants, chemical processing units, power plants, steam systems, water treatment facilities and general process industries for flow measurement applications.