In many applications, threaded flanges are used to connect lengths of pipes without the need to weld. The use of this type of flange is very common in places that are highly flammable, explosive, or where welding is not an option. Constructed with a tapered thread, the flange is applied by tightening onto the pipe, similar to that of a nut and bolt. Sometimes, when appropriate many will use a seal weld to finish off the application, although it is not necessary.
You will find them being used in shipyards, refineries, or manufacturing 
facilities where highly explosive materials are commonly transferred through pipelines. The presence of these materials prohibits the use of welding; therefore threaded flanges are necessary when constructing the pipelines.
A threaded flange consists of tapered interior threading, which is connected to the exterior threading of the piping. When the two are connected, a tight and leak-proof seal is created. If conditions permit, this is where one would create a seal weld. Seal welds are perform where the pipe and the flange meet.
Threaded flanges are most commonly used on pipes containing a smaller diameter, and for use on high pressure or high temperature pipelines. The connection created when using threaded flanges reduces disruptions of turbulence in high pressure situations by eliminating any possibility of improper alignment. Some materials such as stainless steel are hard to create a successful weld; therefore threaded flanges are also used in these circumstances to create that perfect seal.
For more information on threaded flanges, or to find out if it is the proper flange for your job, contact Detroit Nipple Works today!
Threaded flanges may now be shipped from our Detroit Michigan manufacturing facility to anywhere in the U.S including these states in the mid-west; Ohio, Illinois, Indiana and Minnesota. Or in the oil producing states of; Texas, Oklahoma and Louisiana in the south and North Dakota where the demand has increased substantially in recent years.