Flanges are essential components in piping systems, serving various purposes such as connecting pipes, valves, pumps, and other equipment. Different types of flanges are designed to meet specific requirements in different industries. Here are some common
types of flanges and their respective uses in industries:
Weld Neck Flange (WN):
Use: Weld Neck flanges are widely used in high-pressure and high-temperature applications. They are preferred for critical conditions such as in the oil and gas, petrochemical, and chemical industries.
Slip-On Flange (SO):
Use:
Slip-On flanges are easy to install and are commonly used in less critical, low-pressure applications. They find use in industries like water treatment, low-pressure chemical processing, and food and beverage.
Socket Weld Flange (SW):
Use: Socket Weld flanges are suitable for applications with smaller diameters and high pressure. They are often used in chemical processing, petrochemical, and hydraulic systems.
Threaded Flange (TH):
Use: Threaded flanges are used in low-pressure and non-critical applications, often in plumbing and low-pressure piping systems.
Blind Flange (BL):
Use: Blind flanges are used to close the ends of pipes, valves, or pressure vessel openings. They find applications in systems where the end needs to be closed for maintenance or to prevent the flow of fluids.
Lap Joint Flange (LJ):
Use: Lap Joint flanges are used in systems that require frequent dismantling for inspection or cleaning. They are commonly found in industries such as pulp and paper, chemical processing, and water treatment.
Threaded/Threaded Flange (TH/TH):
Use: This type of flange has threads both on the inside and outside. It is used for special applications where a threaded connection is required.
Orifice Flange:
Use: Orifice flanges are specifically designed for measuring flow rates in pipelines. They are common in the oil and gas industry and other fluid measurement applications.
Expander Flange:
Use: Expander flanges are used in piping systems that require expansion and contraction, such as in steam lines and high-temperature applications.
Reducing Flange:
Use: Reducing flanges are used to connect pipes of different diameters. They are employed in systems where the diameter of the pipe needs to change, such as in water treatment plants.
Ring Type Joint Flange (RTJ):
Use: RTJ flanges are commonly used in high-pressure and high-temperature applications, especially in the oil and gas industry.
Spectacle Blind Flange:
Use: Spectacle Blind flanges are used in piping systems where it's necessary to blind or isolate a section of the pipeline temporarily.
The choice of flange type depends on factors such as pressure, temperature, material compatibility, and the specific requirements of the application. Different industries use various flanges based on these factors to ensure the integrity and reliability of their piping systems.
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