Flange Faces - Raised Face (RF), Flat Face (FF), Ring-Type Joint …
The Flat Face flange has a gasket surface in the same plane as the bolting circle face. Applications using flat face flanges are frequently those in which the mating flange or flanged fitting is made from a casting. Flat face flanges are never to be bolted to a raised face flange.
The Difference Between a Raised Face and Flat Face Flange
Flat face (FF) flanges are similar to the RF flanges, but they do not have the raised area like the RF flange. Instead, the whole surface is flat. That means that the gasket used with the FF flange has full contact with the whole surface where two flanges are mated.
Flat-Face Pipe Flanges | McMaster-Carr
Choose from our selection of flat-face pipe flanges, including over 650 products in a wide range of styles and sizes. In stock and ready to ship.
Understanding Flange Face and Face Finish Types - Projectmaterials
Flat Face (FF): A flat surface that comes into direct contact with a similar flat surface on the mating flange. Flat face flanges are typically used with cast iron or other brittle materials where high tightening forces can cause damage. They are commonly used in low-pressure applications.
Flange Facing Options and How to Choose - API International, Inc.
Flat face (FF) flanges are machined flat and do not have a ridge on the mating surface, so the gasket has full contact. Flat face flanges are most often used for relatively low-pressure, low-temperature applications, most often for 150 through 300 psi rated flanges.
Types of Flange Faces – FF, RF, RTJ, T&G and MF - HardHat Engineer
Learn about types of flange faces: Flat Face (FF), Raised Face (RF), Ring Joint (RTJ), Tongue and Groove (T&G), and Male and Female types.
Flange Faces Explained (Flat, Raised, etc) - saVRee
Flat face (FF) flanges use non-metallic gaskets (soft gaskets) and should always have a serrated sealing surface. This type of flange is well suited to low pressure applications and is used for pressure classes 125 and 250.
Steel Flat-Face Pipe Flanges | McMaster-Carr
Choose from our selection of steel flat-face pipe flanges, including over 650 products in a wide range of styles and sizes. In stock and ready to ship.
Flat Face vs Raised Face Flange – What’s the Difference
Feb 2, 2023 · A raised face flange has a raised gasket surface on one side and a flat gasket surface on the other side. This flange type is ideal for applications requiring a tight seal, such as plumbing systems, petrochemical plants, and power plants.
Blind Flange - API International, Inc.
Blind flanges, also known as blanking or flat face flanges, are solid disks that block off or seal the end of a piping system or vessel opening. Unlike other types of flanges that feature an inner borehole with bolt holes for connection, blind flanges are smooth and lack an inner borehole but share the same bolt holes for connection to a piping ...