Meaning And Types Of Flanges
Meaning Of Flanges
A flange is a projecting ridge or rim that is used to transfer load or increase strength. To create a plumbing system, flanges are used to join valves, pumps, pipes, and other pieces of machinery. It also enables easy cleaning, checking, and modifying. Flanges are attached using screws or welding. By fastening two flanges together with bolts and sandwiching a gasket between them to create a seal, flanged joints are produced.
Flanges are utilised when the piping joint needs to be taken apart. These are frequently encountered in equipment, valves, and specialised uses. In many Pipelines where maintenance is frequently performed, Breakout Flanges are inserted at regular intervals. Flanges, gaskets, and bolts are the three distinct yet unified parts that make up a flanged joint. To create a leak-proof joint, certain controls must be applied in the selection and application of each of these components.
Materials Used in the Production of Flanges
A range of materials and grades are used to make pipe flanges. Flanges can be made from a variety of materials. Carbon steel, high yield carbon steel, alloy steel, stainless steel, duplex and super duplex, as well as several nickel alloy grades including monel, inconel, hastelloy, and incoloy, are the materials that are most frequently used to manufacture pipe Flanges.
Different Types Of Flanges
Flanges that slip on
Stainless Steel Slip-on Flanges are frequently utilised due to their inexpensive material cost and simplicity of installation. Other diameters and low-pressure models are available for selection. This Flange requires double welding since it lacks a neck to rest on the pipe like welding neck flanges do.
• Socket Weld Flange
Socket-welding Typically, low-diameter, high-pressure pipes use pipe flanges. By placing the pipe into the socket end and adding a fillet weld to the top, these Pipe Flanges are connected. As a result, the pipe's bore is smoother and the fluid or gas flows through it more effectively.
• Threaded Flanges
Flanges known as threaded pipe flanges can be fastened to a pipe without the need for welding. The internal thread of threaded flanges links to the exterior thread of the pipe. Slip-on Pipe Flanges, which are utilised with Pipes with External Threads, are identical to Threaded Pipe Flanges.
• Weld Neck Flanges
Welding Neck Flanges can be identified by their long, tapered hub, which progressively crosses a pipe or fitting's wall thickness. Weld Neck Flanges are usually utilised to smooth the curve from a bigger to a smaller size of Pipe, resulting in more pressure than prior of the run.
• Reducing Flange
Without using a reducer, reducing flanges are utilised to join big and small pipe sizes. These flanges are perfect for joining pipes of various sizes because they are available in all pressure classes. This kind of flange shouldn't be used whenever a rapid change, like at a pump, would result in unwelcome turbulence.
• Blind Flange
Since blind flanges are constructed without boring, they are used to cover up the openings of pressure vessels, valves, and pipe ends. Blind flanges, particularly those in larger sizes, are the most highly stressed Flange kinds in terms of internal pressure and bolt loading.
• Lap Joint Flange
A lap-joint ring Flange is placed over a stub end in a two-part arrangement known as a lap-joint flange. The Flange ring can be turned to align with the mating Flange after butt welding the stub end to the Pipe. Generally speaking, this Flange connection is beneficial for huge or challenging-to-adjust Flanges.
