Orifice Flange manufacturer & supplier in China
Orifice flange is a common measuring device of pressure differential pressure.
Orifice flange is a common measuring device of pressure differential pressure, its main principle is to install an orifice plate in the pipelines of fluid pipelines. To get the rate of flow by calculating the pressure difference that happened when the fluid passes the orifice plate.
What is Orifice Flange?
Orifice flange is a special type of flange connection that is a vital device used to install orifice flow meters or regulated flow. The function of orifice flange is to connect pipes and orifice plates, providing accurate fluid measurement and control.
The main application of orifice flanges is to measure and adjust the flow of fluids or gasses in piping systems. It is usually used for various industrial fields, such as Chemical, oil, natural gas, water treatment, etc. In piping systems, installing orifice flow meters or adjusting devices, the flow of fluid can be accurately supervised and controlled, thus achieving process control and energy saving optimization.
In general, orifice flange is a simple and effective flow measuring device, which is suitable for some enterprises with strict cost and moderate accuracy requirements. When you choose orifice flanges, the main considerations include fluid properties, flow rate range, and measurement accuracy.
Metleader's orifice flanges are manufactured in accordance with international standards. There are professionals that control quality from the procurement of raw materials to final production molding. We can guarantee that every piece of orifice flange we produce is qualified and in line with the standard.
Applications
Orifice flanges are widely used for the pipeline connections of petroleum & gas, petrochemical, water engineering, ship building, seawater cleaning, construction etc.
Technical Specifications
Orifice flanges have many sizes, no matter for carbon steel or stainless steel. The following information is just about their sizes and tolerances.
Orifice Flange type According to manufacturing technique:
Butt welded orifice flange
Butt welded orifice flange is a special way to connect pipes, which combines the characteristics of weld neck flange and slip-on flange. The design of orifice can be selected according to different requirements and application environments. It can be long orifices or round orifices, and there are various shapes to choose, such as standard type, flat type, raised type and insert type.
Lap joint orifice flange
ap joint orifice flange uses a steel ring to place flange on the end of a pipe, and the flange can be moved on the pipe end. Generally, it is matched with the fittings used for water supply and drainage. And it is usually connected by expansion joint, each end of the expansion joint has a flange, which is directly connected with the pipe and equipment in the project with bolts.
orifice flange material
Carbon steel orifice flange
Carbon steel orifice flange is the most common connection, which has the advantages of good mechanical properties, wear resistance and corrosion resistance. The price of carbon steel orifice flange is more favorable, but in the acid-alkali corrosion environment, it is easy to be corroded, affecting the service life.
Stainless steel orifice flange
Stainless steel orifice flange has the advantage of excellent corrosion resistance, especially for oxidation and acidizing media. The common materials refer to ASTM A182 F304/L, F316/L, etc. Compared with carbon steel orifice flanges, the price is more expensive, but the service life is longer.
Alloy steel orifice flange
Alloy steel orifice flange has the advantages of high measurement accuracy, fast response time and compact structure. It is available in the fields of petroleum, chemical, marine and electric power. The common materials refer to ASTM A182 F5, F9, F11, F22, F91,etc. It is also suitable for poor working conditions.
Quality Assurance
1）Orifice flange is a kind of special flange which has high requirements for the materials. They should have good performances in the mechanical properties, corrosion resistance, and welding properties.
2）In the production process, the quality of materials should be inspected to guarantee there are no defects and damages. If customized production, which should be proceeded strictly according to the drawing and technical requirements.
3）Strictly according to the standards or drawings to do the dimension and visual inspections to keep sure the good appearance and qualified dimensions.
4）Orifice flange requests high precision and low tolerance, in order to meet these two requirements no matter the production equipment or inspection tools need to be calibrated regularly. As well as the flatness and angle of flanges should be inspected to ensure the stability of its connection with the pipeline or equipment.