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Flange manufacturers for your answer:How many types of flange are there?


Date:

2023-09-06

here are several types of flanges used in various industries and applications.  The specific type of flange chosen depends on the requirements of the piping or equipment it is used with.  Some common types of flanges include:

here are several types of flanges used in various industries and applications.  The specific type of flange chosen depends on the requirements of the piping or equipment it is used with.  Some common types of flanges include:

1.  Weld Neck Flange (WN): This type of flange has a long neck and is designed to be butt-welded to the pipe.  It is often used in high-pressure and high-temperature applications.

2.  Slip-On Flange (SO): Slip-on flanges slide over the pipe and are then welded in place.  They are easier to align and install compared to weld neck flanges but may not be suitable for high-stress applications.

3.  Socket Weld Flange (SW): Socket weld flanges are designed to be welded directly to the pipe using a socket weld connection.  They are commonly used in smaller pipe sizes and high-pressure systems.

4.  Blind Flange (BL): Blind flanges are solid discs with no bore and are used to block off the end of a piping system or vessel.  They are often used when future access to the pipe or equipment is required.

5.  Lap Joint Flange (LJ): Lap joint flanges consist of two parts—the flange itself and a separate backing flange.  They are used in applications where easy disassembly and access are needed.

6.  Threaded Flange (TH): Threaded flanges have threads on the inner bore and are screwed onto the pipe.  They are commonly used in low-pressure applications.

7.  Orifice Flange: Orifice flanges are specifically designed for orifice metering systems, used to measure fluid flow rates.  They have special bore sizes and tappings for the installation of orifice plates.

8.  Spectacle Blind Flange: Spectacle blind flanges are used in piping systems where temporary or permanent isolation of a section of the pipeline is needed.  They consist of two metal discs with a hole in one and a solid plate on the other.

9.  Reducing Flange: Reducing flanges are used to connect pipes of different sizes.  They have a larger diameter on one end and a smaller diameter on the other.

10.  Expander Flange: Expander flanges are used to increase the pipe size gradually.  They are often used in pipeline transitions.

11.  Anchor Flange: Anchor flanges are used to restrain the movement of pipes or equipment, especially in systems with thermal expansion or vibration.

12.  Swivel Ring Flange: Swivel ring flanges are used in systems that require rotational movement, such as in loading arms for tankers.

These are some of the common types of flanges, but there are also specialized flanges designed for specific applications and industries.  The choice of flange type depends on factors like pressure, temperature, pipe size, and the specific requirements of the system.

Key Words:

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