Flange facing types C, D, E, F, G and H are not used for PN 2,5 and PN 6.Flange facing types G and H are only used for PN 10 to PN 40.Requirements are valid for normal case, in special case you have to contact the technical department.Below you will find a short description and definition of each type, completed with an detailed image.Our team are highly trained and experienced in servicing and producing all types of steel supplies. Faces are the mating surface of a flange, nozzle or valve. They provide the connections necessary to link pipelines with the nozzles on mechanical equipment or with adjoining pieces of pipline. The Tongue and Groove faces of this flanges must be matched. Make sure they get it by sharing your application with our team. Flange “finish” refers to the type of surface produced by matching the flange face, which contacts the gasket. Tongue-and-groove facings are standardized in both large and small types. The height of the raised surface varies according to the pound rating of the flange. Categories. Flanges with 150# or 300# have a 1/16" raised face whereas 400# or more have 1/4".

Your technicians need a lightweight, easy to use, safe and compact tool that can be used to quickly resurface a flange face.

One flange face has a raised ring (Tongue) machined onto the flange face while the mating flange has a matching depression (Groove) machined into it’s face. Flanges are an integral part of a pipeline network. Raised face flange tools & tools for all flange face types. We’ll identify the best tools for your: Raised face flange. Flanges and their joints - Circular flanges for pipes, valves, fittings and accessories, PN designated - Part 1: Steel flanges Subscribe here . This standard specifies the flange types and their facings, dimensions, tolerances, threading, bolt sizes, flange face surface finish, marking, materials, pressure/ temperature ratings and flange masses. Flange faces have to be smooth enough to ensure a tight, leak-free seal for bolted flanges. Mirage Machines can provide the right tools to provide high quality surface finish restoration for each of these types of flange face. Forged steel flat face flanges are often found 150# and 300# ratings. To find out more about our range of flange facing machines, 2018 Mirage Machines Limited - All Rights Reserved Mirage Machines Limited is registered in England2018 Mirage Machines Limited - All Rights Reserved Before you read on you may wish to subscribe to receive alerts when we post similar information.
FACES DE JOINTS - FLANGE FACINGS TYPE A Face de joint plate Flat face TYPE B Face de joint surélevée Raised face TYPE C Emboîtement double mâle Tongue face TYPE D Emboîtement double femelle Groove face TYPE E Emboîtement mâle Male face TYPE F Emboîtement femelle Female face TYPE G Emboîtement femelle pour joint torique Female face for O-ring TYPE H … Flange face finish. Other information that will be stamped on the outer edge of the flange includes manufacturer, nominal size, pressure rating, face designation, wall … It is important to take note of whether the raised face is included within dimensions charts when dealing with pipeline components as This allows for various … Flat face flanges are used "Ring-type joints (RTJs) are considered to be the the most efficient flanges for use in pipeline design. The two types of finish are “smooth” and “serrated.” Raised face forged steel flanges are machined to provide a “serrated concentric” groove, or a “serrated spiral” groove finish to the raised face of the flange. The ASME B16.5 code requires that the flange face (raised face and flat face) has a specific roughness to ensure that this surface be compatible with the gasket and provide a high quality seal. Flange types and dimensions are stamped on the outer edge of the flange. Recent Posts. Rather than using a gasket between connecting flanges, RTJs have a deep groove in a ring shared around the face. This information should be checked on each pair of mating flanges prior to make-up to see that both have the same pressure rating and pipe wall thickness.

Ring joint.