RTJ Face: RTJ flanges seal when tightened bolts compress the gasket between the flanges into the grooves, deforming (or “Coining”) the gasket to make Intimate Contact inside the grooves, creating a metal to metal seal. An RTJ flange may have a raised face with a ring groove machined into it.

Blind Flange: A blind flange is a solid flange as shown below. The purpose of these is to block off a section of pipe or a nozzle on a vessel that is not used. (A nozzle is typically a pipe coming out of a vessel and is usually flanged so it can be connected to valves or piping).

Get high-quality Carbon Steel Flanges at the best prices. Flanges are basic mechanical devices used to connect pipes, valves, pumps, and more. They are circular and usually welded or threaded with each other.

They come in two pieces, which are later joined by bolting with the gaskets. It helps the pipes to stay sealed and prohibit the leaking of material. The flanges are types of coupling up two lines.

The diameter and length of flanges depend upon the size of the pipes. There are various types of flanges available in the market namely Round Neck, Weld Neck Flanges, Socket Welded Flanges, Slip-On Flanges, etc.

Welding Neck Flange: A weld neck flange consists of a circular fitting with a protruding rim around the circumference. Generally machined from a forging, these flanges are typically butt welded to a pipe. The rim has a series of drilled holes that permit the flange to be affixed to another flange with bolts.

Slip On Flange: Slip on Flange is essentially a ring that is placed over the pipe end, with the flange face extending from the end of the pipe by enough distance to apply a weld bead on the inside diameter. The OD of slip on flange is also welded on the back side of the flange.

Raised Face Flange: The Raised Face flange is the most common type used in process plant applications, and is easily to identify. It is referred to as a raised face because the gasket surfaces are raised above the bolting circle face