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Types of flanges
Home Home Home Improvement
By: Eric A. Hudson Email Article
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Two pipes are connected together with the help of flanges. It can also be used to connect a pipe to a tee, valve, choke or any other piece of equipment. Flanges are available in round, square, and rectangular shapes. Let us get to know better some of the most common types of pipe flanges.

Lap Joint flanges are used in pipe fittings which require frequent dismantling of the flanges and pipe. They are used with an identical stub-end insert. They are easily rotate-able which allows for easy alignment of bolt holes. They cannot be used in places where there is high pressure and temperature. They do not come in contact with the liquid inside the pipe and hence are highly durable. They are also re-usable. They can be swiveled around the pipe and this allows the lining up of bolt holes. It also gives support to the stub.

Slip-on flanges are pipe flanges that slide over the end of piping and are then welded in place. They have smaller thickness and this allows for easy alignment of bolt holes. They are useful in low pressure environments. The installation cost of these pipe fittings is low. They help prevent leakage. They have more strength than other flanges.

Threaded pipe flanges can be attached to the pipe without welding. They are available in various sizes and materials. They are useful in connecting small pipe sizes. They are highly usable in high pressure areas. They are economical and save a lot of time. They can also be used in highly explosive areas.

Weld neck flanges are the most common type of high pressure pipe flange. They provide a very sturdy connection because of their tapered hub. They can also be handled and bended frequently without getting damaged. They are also useful in conditions which have extreme temperature conditions. They have a high and heavy neck and that makes them a very popular welded flange.

Socket welding flange was developed for use on small-sized high- pressure piping and chemical piping. This pipe fitting allows for a smooth flow of liquid. They create a smooth bore with the proper welding and grinding.

Blind flanges are round plates which has all the bolt holes except the central one. They are used to blank off the ends of pipes and valves. They are made to fit standard pipes in all sizes.

Reducing flanges are used when the diameter keeps changing in a piping system. They are easy to bolt. They can withstand high and low pressures. They are an inexpensive way to connect different sized flanges.

If you are looking to buy pipe flanges then be sure to shop at Flange Direct which is the world’s number one marketplace for flanges and fittings. It is a global specialized, focused community where flange and fittings buyers and sellers meet. Buyers can submit request for quotes that are evaluated and bid on by multiple qualified, certified sellers. Sellers receive real request for quotes from real buyers who are ready to purchase.

Eric A. Hudson is author of this article on Flange. Find more information about Pipe flange here.

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