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Different types of flanges and their uses

Used to connect valves, pipes and other equipment, flanges are forged rings that come in many different shapes and sizes and are used in a wide range of industries around the world. With so many varieties and specifications, it might be difficult at first to recognise which is the right one for you. Here’s a rundown of some of the most common and popular types of the flange and their uses:

Weld neck

Named for their protruding necks, these bulky flanges share the environmental stress of the pipe to which they are affixed and can, therefore, be used in extreme temperature or pressure situations.

Slip-on

Slip-on flanges slip onto the pipe – aptly named indeed – and are then welded on both the inside and outside. They’re cheap, popular and best used in low-pressure, low-temperature applications.

Threaded

Threaded pipe flanges are similar in design to slip-ons but has a tapered thread, meaning it can be attached to pipes without welding. Like slip-on flanges, they’re best used in low-pressure, low-temperature environments.

Blind

Blind flanges don’t have a bore and are used to shut off sections of pipe. They’re suitable for high-pressure applications, as well as for testing the flow of gas or liquid through a pipe.

Socket weld

Typically used on small, high-pressure pipes like hydraulic pipes, socket weld flanges are able to accept pipe into the socket to create the fitting.

Orifice

Orifice flanges are used in conjunction with orifice plates to measure or restrict pressure or flow of gases and liquids in pipelines. They’re often sold together with the plate and jack screws as a complete product.

Anglo Stainless offers a wide range of quality, BSI-approved stainless steel flanges, including slip-on, blind, threaded and weld neck flanges. To get advice on which flange you need, find out more about our products or for any enquiries, please feel free to get in touch with the team on 01924 430044 or via email at sales@anglostainless.co.uk.

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