Rf, ff, rtj flange face and finish projectmaterials. Used in a number of industries, these steel ring joint flanges are supplied in various dimensional specifications. Pipe flanges are used at places where piping, instruments, valves, equipment etc. Successful sealing of problem flanges in high temperature. Ring type joint flange dimensions wn rtj flange dimensionsclass 2500. The more popular ring type joint materials, with the recommended maximum hardness and identification as specified in api 6a, are shown in the table below.
The pipe flanges are the second most used joining method after welding. Learn about types of flanges threaded,socketweld,slipon,lap joint,weld neck. Stainless steel rtj flanges carbon steel rtj flanges nickel alloys rtj flanges. We are manufacturers and suppliers of ring joint flanges. How to machine damaged rtj flanges mirage machines. For more highly specialized applications, ring type joints can be machined from duplex steels and other. The ringtype joint flange is a version of the raised face flange used for high pressure or hazardous fluid. Ring type joint rtj flanges a world leading flange. Nonmetallic gaskets are used with flat or raisedface flanges. Ring type joint flange supplier, stainless and carbon. They are dimensionally suitable for use with flanges manufactured. Lap joint flanges loose flange lj flange standards, dimensions, weight. Which are the most common types of flanges used in piping.
The dimensions and weights of lap joint flanges are shown in this article. Following the acceptance of ring joints for flanges and valves by api and the issuance of their standard, asa b16e on steel pipe flanges and flanged fittings was revised to include them, and the 1939 edition included standard dimensions for a full line of ring joint flanges based on the api. Dimensions and tolerances are in accordance with asme b16. Iso flanges conform to the vacuum flange standards issued by the international standards organization iso. The flange face is the surface area that hosts the gasket. This type of seal is used particularly for high pressure plant. Api ring joint gaskets come in two basic types, an oval cross section style 377. Petromet flange inc is a manufacturer and supplier of ring type joint flange. Rtj blind flange, ring type joint rtj blind flange materials. Flange ring, twopiece corrosion resistant flange backing rings the split ring design allows for a flange ring to be added after a flange adapter has been joined to the pipe for retrofit. Does any adhesive needed to hold gaskets into the groove of rtj flanges particularly. Ring type joint flanges, ring type joint flange, rtj.
This is to keep the thin, brittle cast iron flange from being sprung into the gap caused by the raised face of the carbon steel flange. The major standards for swivel ring flanges are asmeansi, din, bs, en, iso, etc. A metal ring is compressed into a hexagonal groove on the face of the flange to make the seal. These solid precision machined metallic gaskets, also called and known as ring type joint rtj gaskets are suitable for the highest possible pressure and temperature duties and form. Ring type joint flanges, ss ring type joint flanges. Ringjoint, spiralwound, and jacketed ring type joint. The other main kind of seal for flanged joints is the ring seal, also known as a lens or. I have a flange im looking at and the top half of it is a flat face flange while the bottom half is a ring joint flange ring depth is 0. The other main kind of seal for flanged joints is the ring seal, also known as a lens or ring type joint rtj. Aisi, asme, din, bs, en ring type joint flanges suppliers in mumbai, india.
Marcel piping is renowed ring type joint flange manufacturers in india, a asme b16. The type of flange to be used for a piping application depends, mainly, on the required strength for the flanged joint. The more popular ring type joint materials, with the recommended maximum hardness and identification as specified in api 6a,are shown in the table below. Metal industries has been a professionally managed manufacturing and exporters of lap joint flanges loose. Ring type joints noble engineers is an independent company manufacturing and supplying a variety of high quality sealing products designed for flange applications in the industrial and.
Rtj flange, ring type joint rtj flanges manufacturers. Watch the video showing set up process of the mm600e flange facing machine ring type joint flanges are typically used in high pressure. A rtj flange joint is a connection of pipes, where the connecting pieces have flanges by which the parts are bolted together, usually has a raised face with the groove machined into. Style 377t, combination rings combine two different sizes having the same pitch. Bx ring type joint gasket refers to the metal gasket of bxshaped section by processing metal materials.
Flexitallic style r ring type joints can be manufactured in accordance with all relevant standards to suit the following flange designations. Ring type joint flange is a method of ensuring leak proof flange connection at high pressures. The types of flanges for piping explained projectmaterials. Ring type joint rtj gasket basics and types mechanical. Flange dimensions blind flange dimensions orifice flange dimensions. Hi everyone, few questions regarding installation of ring type joints 1.
Lap joint flanges loose flange lj flange standards. The type of gasket the engineer is using is an elastomer. Learn different types of pipe flanges used in piping. A ring type joint flange, abbreviated as rtjf, is a type of flange that uses a metal ring that sits in a hexagonal groove as a gasket to seal the. It is a forged ring that fits into the machined groove of an rtj flange. Ring joint type face flange has a specially designed grove in which metal gasket seat. Groove depth e is not included in flange thickness t but is included in the connection overall length l. See our drawing of facing dimensions for ring joint flanges in our high pressure forged flanges. These are available as ring type joint gaskets page 5, welded membrane gaskets page. These usually recommend that the flange faces be machined with a spiral groove in accordance. Pdf piping joint handbook danny ferdiansyah academia. The ring type joints are manufactured as per asme b16. Surface finish of the style r ring type joint sealing faces radiused ends of an oval and the 23 angled faces of an octagonal shape shall not be greater than 1. What is a ring type joint flange a ring type joint flange is a type of flange that uses a metal ring that sits in a hexagonal groove as a gasket to seal the flange pair.
Drawing of facing dimensions for ring joint flanges high. Flanges with different faces require different gaskets and shall never be mated to prevent leakage of the joint. Working in conjunction with our customers, moorflex has. Jock oring type the jock oring gasket can be a full face type e or ring gasket type f configuration. This can also occur with threaded flanges if the pipe is not machined flush to the flange face and lap joint flanges with lighter schedule pipes that are rolled over to create the sealing surfaces. The more popular ring type joint materials, with the recommended maximum hardness and. A ring type joint flange rtj flange is termed for pipelines flange with ring type joint facing. Spades for ring type joint flanges to suit ansi 147 b16.
Spiralwound gaskets are used with raisedface flanges, and ringjoint gaskets are used with ringtype joint rtj flanges. When joining a highstrength carbon steel flange with a raised face to a. Bx ring type joint gaskets,china bx ring type joint. The jock has a highenergy oring elastomer seal that compresses and. It is of pressure energized seal in radial direction, one special kind of octagonal. They share the same underlying principle as the qf kf or nw flange. Pipe flanges a method of pipe joints and its classification.