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Carbon steel flanges come in various types, each designed for specific applications and connection methods. Here are the most common types of carbon steel flanges:
1. Weld Neck Flange
Description: Features a long neck that provides a gradual transition from the pipe to the flange.
Use: Ideal for high-pressure applications, as it helps manage stress and is often used in welding.
2. Slip-On Flange
Description: Designed to slip over the pipe, with a small fillet weld on both the top and bottom for reinforcement.
Use: Common in low-pressure applications due to ease of installation and cost-effectiveness.
3. Blind Flange
Description: A solid flange without a central opening, used to seal the end of a pipe or vessel.
Use: Useful for maintenance access points or to close off a pipeline.
4. Socket Weld Flange
Description: Similar to slip-on flanges, but they have a socket or recess for the pipe to fit into, often used with small-diameter pipes.
Use: Suitable for high-pressure applications, providing a strong joint.
5. Threaded Flange
Description: Features internal threads, allowing it to be screwed onto a pipe.
Use: Useful in applications where welding is not feasible, but not suitable for high-pressure systems.
6. Lap Joint Flange
Description: Consists of two parts: a stub end and a loose flange that can rotate around the stub end.
Use: Often used in applications requiring frequent dismantling, as it allows for easy alignment.
7. Raised Face Flange
Description: Features a raised section around the bore that enhances sealing capabilities.
Use: Commonly used in piping systems to ensure a better seal when paired with a gasket.
8. Flat Face Flange
Description: Has a flat surface, providing a sealing surface that is flush with the flange face.
Use: Often used in low-pressure applications and with equipment where a flat surface is needed.
9. Orifice Flange
Description: Specifically designed for flow measurement applications, featuring holes for pressure taps.
Use: Commonly used in metering applications to measure flow rates.
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