Orifice Flange Assemblies are precision-engineered flow measurement devices used to determine the flow rate of liquids, gases, and steam in pipelines. The assembly consists of a pair of specially designed orifice flanges, an orifice plate, gaskets, studs, nuts, and pressure tapping points that facilitate accurate differential pressure measurement across the orifice plate.
Widely used in industries such as oil & gas, petrochemicals, power plants, chemical processing, water treatment, and pharmaceuticals, Orifice Flange Assemblies provide a reliable and cost-effective solution for flow measurement and process control. Designed in accordance with international standards, they ensure accurate performance, easy installation, and long-term durability under demanding operating conditions.
The pressure difference created by the restriction of flow through the orifice plate is measured and used to calculate the flow rate, making Orifice Flange Assemblies one of the most widely accepted methods for industrial flow measurement.
Applications of Orifice Flange Assemblies
- Oil & Gas Processing Plants
- Petrochemical Industries
- Power Generation Plants
- Chemical Manufacturing Facilities
- Water & Wastewater Treatment Plants
- Refineries
- Steam Distribution Systems
- Process Industries
Features of Orifice Flange Assemblies
- Accurate and reliable flow measurement
- Available with RF, RTJ, and FF flange facings
- Integral pressure tapping connections
- Suitable for liquid, gas, and steam applications
- Robust construction for high-pressure and high-temperature services
- Easy installation and maintenance
- Manufactured as per international standards
- Available in a wide range of sizes and pressure classes
Available Options
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Concentric, Eccentric, Segmental, and Quadrant Edge Orifice Plates
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Vent and Drain Hole Configurations
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Material Test Certificates (MTC)
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NACE Compliance for Sour Service
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Special Alloys for Corrosive Applications
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Customized Pressure Tapping Arrangements
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Complete Flow Measurement Packages
Specifications
| Parameter | Details |
|---|---|
| Product Name | Full View Sight Glass |
| Size Range | 15 NB to 300 NB (½" to 12") |
| Body Material | SS 304, SS 316, SS 316L, Carbon Steel (Optional) |
| Glass Material | Toughened Borosilicate Glass |
| End Connection | Flanged, Threaded, TC End, Socket Weld, Butt Weld |
| Pressure Rating | Up to 10 Bar (Higher on Request) |
| Temperature Range | Up to 200°C (Depending on Gasket & Design) |
| Gasket Material | PTFE, EPDM, Silicone, Viton |
| Viewing Type | Full 360° Transparent View |
| Surface Finish | Matt, Mirror Polish, Electro-Polished |
| Mounting Position | Horizontal or Vertical |
| Design Standard | As per Industrial Standards |
| Testing | Hydrostatic & Leak Tested |
| Application Media | Water, Chemicals, Solvents, Oils, Food Products, Pharmaceutical Liquids |
Benefits
Orifice Flange Assemblies provide a proven and economical method for flow measurement in industrial processes. Their simple design, high accuracy, and compatibility with differential pressure transmitters make them ideal for monitoring and controlling fluid flow. With robust construction and adherence to international standards, these assemblies ensure reliable performance, operational efficiency, and long service life in critical process applications.