The en flanges are certified according to en 102043. Additional decisions involve facing and surface finishes, and the appropriate. As common as it may seem to many people, a lot of customer ask what is a flange. Section 4a api 6a type 6b, 6bx flanges and studded crosses and tees api flanges flanges and studded blocks are designed and manufactured in accordance with the following specifications. Welding neck flanges are easy to recognize at the long tapered hub, that goes gradually over to the wall thickness from a pipe or fitting. Flange types weld neck flangeslip on flangethreaded flangeblind flangesocket weld flangelap joint flangestub end. There are many different flange standards to be found worldwide. Vacuum flanges several vacuum flange standards exist with. The vacuum seal is made by compressing an oring between a mating pair of flanges. The flanges are created to match the pipes inside diameter or fitting. They are also most suitable for high pressure temperature applications.
Long weld neck flange dimensions socket weld flange dimensions. These types of flanges are used in high pressure and temperature application. A wide variety of different types of flange options are available to you, such as ansi, iso, and asme. Because of this, awwa c207 is used for large steel flanges in the waterworks industry. A closer look at 6 different types of flanges world wide. Here below you will find a short description and definition of each type, completed with an detailed image. Some of its features include different material choices like stainless steel, carbon steel, alloy steel and others. Blind flanges are commonly produced and stocked in several different materials. Which are the most common types of flanges used in piping. Gasket material saves money by allowing less precise mating surfaces on machine parts which can use gasket material to fill irregularities. Flanges, tees and crosses studded cr osses and t ees.
A flange is an external or internal ridge, or rim lip, for strength, as the flange of an iron beam such as an ibeam or a tbeam. The types of flanges for piping explained projectmaterials. They are available blank or bored to fit tube sizes 112 through 12 o. Api flanges flanges and studded blocks are designed and manufactured in accordance with the following specifications. Any used at sunrise dam not covered in the above list will be pointed out during the plant tours. Here is a infographic depicting types of flanges for pipes used in process industry. The type of flange to be used for a piping application depends, mainly, on the required strength for the flanged joint. We have talked about common flange types such as a105 flange, 316 and 304 stainless steel flanges above. The pair includes a smooth face flange and an oring grooved flange. Class 150300 series a large diameter flange dimensions.
The term flange is also used for a kind of tool used to form flanges. With a static strength equal to the slipon flange, the socketweld is connected with the pipe with 1 fillet weld on the outside of the flange. These types of flanges are used with another type of flange to isolate the piping system or to terminate the piping as an end. Socket weld flanges are used for smallsize and highpressure piping that do not transfer. Different types of flange faces are used as the contact surfaces to seat the sealing gasket material. Flanges differ in size, the method of tightening used, and the shape of the sealing surface. A flange joint is a connection of pipes, where the connecting pieces have flanges by which the parts are bolted together. Definition and details of flanges types of flanges. A blind flange is a plate for covering or closing the end of a pipe. As already described before, the most used flange types asme b16. The types and uses of weld neck flanges forged components.
Long weld neck flanges are used with vessel nozzles and equipment. Ms british standard flanges, ms american standard flanges, ms din standard flanges, gi british standard flanges, ss british standard flanges, ss american standard flanges, ss din standard flanges, flanges table d, flanges table e, flanges table f, flanges table h, asa 150, asa 300, asa 600, nd 10, nd 16, nd 40. Lubricate the bolts, nuts and nut bearing surfaces. Lets take a look at five different flange materials and their characteristics. Stainless steel stainless steel is known for its ability to resist corrosion, its ease of sanitation, as well as its durability. Standard weld neck flanges are used in butt weld fittings. Flanges imperial, metric, or ansi the flange or flange gasket is designed to fit between two sections of pipe that are flared in order to provide higher surface area. When manufactured as a separate part, flanges are most often welded or screwed onto the ends of the parts to be joined. Different types of flange faces are used as the contact.
Welding neck flanges are easy to recognize at the long tapered hub, that goes gradually over to. Different types of flanges such as stainless steel flanges, duplex steel flanges, super duplex steel flanges, nickel alloy flanges, hastelloy flanges. These flanges are offered with choice of smooth face or oring groove. Therefore, the flanges connecting all of these pipes and tubes need to be able to stand up to the same forces. A flange is an external or internal ridge, or rim lip, for strength, as the flange of an iron beam. Gaskets are commonly produced by cutting from sheet gasket. The dimensions and weights of slipon flanges ansiasme are available on this page. From the standpoint of internal pressure and bolt loading, blind flanges, particularly in the larger sizes, are the most highly stressed flange types click to buy now. It is slipped over the pipe and a stub end is welded onto the pipe. Flanges can be designed for any size and pr essur e r ating. We can also offer the fittings in other nonstandard as per customers drawings.
Manufactured without a bore, these flanges are used to blank off the end of piping, valves and pressure vessel openings. Packed with pictures, definitions, and descriptions of ansi and api piping materials, such as flanges, fittings, bolts, gaskets, and required wrench sizes, it serves as an excellent guide for rookies and a ready reference for oldtimers alike. Isokf flanges and fittings isok flanges and fittings cf flanges and fittings for each standard, alcatel offers the normalized nominal diameters. May, 20 a flange is usually in the shape of a disc and is used to connect two tubes together or to connect a pipe to a valve, tee, choke or other component. The sandvik program also includes a wide range of stainless flanges according to ansiasme as well as an extensive range of fittings in stainless steel. The pipe flanges are the second most used joining method after welding. Sizes nps 12 through 312 are same as class 600 flanges. Download copies of delivery notes, invoices and mtr mill test report. Blind socket weld lap joint bored slightly larger than the od of the pipe, the radius on the bottom matches the radius on the stub end. Stainless steel flanges according to en sandvik materials. Operating instructions flanges according to din en. Visually examine and clean flanges, bolts, nuts and washers. En 10921 flanges summary chart rated pressure in bar 1 bar 14. To refresh your memory, lets take a look at six different types of flanges.
Click to print opens in new window click to share on facebook opens in new window click to share on twitter opens in new window. These flanges make up for 80% of the flange demand. Ms british standard flanges, ms american standard flanges, ms din standard flanges, gi british standard flanges, ss british standard flanges, ss american standard flanges, ss din standard flanges, flanges table d, flanges table e, flanges table f, flanges table. Blind flanges are also used as a manhole cover in the vessel.
Texas flange provides asme flanges and non code industrial pipe flanges for the petrochemical, process, waterworks industries in stainless, alloy and carbon steel for all industrial flanges. Swivel flange spools and adapters sara manufactures a wide range of high pressure flanges, tees, crosses and conforming to api 6a and in line with specific customer r equir ements. The latest version provides dimensions and ratings in both metric and inch units. Sandviks stainless en flanges are corrosion tested according to en iso 36512 latest edition and pmi checked. Welding neck flange welding neck flanges are easy to recognize at the long tapered hub, that goes gradually over to the wall thickness from a pipe or fitting. The bore diameters of weld neck flanges 300lb correspond to the inside diameters of pipe as given in asme b36. The engineer or designer must choose among several flange options. Flanges types different types of pipe flanges part1. Providing support and strength, two flanges are typically attached to pipe ends with a gasket in between. Welding neck, slip on, socket weld, lap joint, threaded and blind flange. There are, however, special applications in petrochemical and refining industry where a more robust material chemistry is required due to corrosion, low temperature or high pressure. Api 6a specification for wellhead and christmas tree equipment.
The flange is slipped over the pipe and is settled by welding at both top and base side of the flange. Metric flanges to din and jis standards see page 98. Most common flange types welding neck flange welding neck flanges are easy to recognize. This flange type will be welded to a pipe or fitting with a. They may be part of a pipe, fitting, shaft, frame, or other item. Pressure ratings, dimensions and facings for flanges acc. Here is the latest edition of a compact reference that has been a real treasure for materials personnel for more than 15 years. Therefore, the mss sp44 flanges are designated as asme b16. Below you will find a short description and definition of each type, completed with an detailed image. Thickness of standard wall is the same as sch40 in sizes 10. The 6 common types of flanges 2016 october 25 a flange is a collar or ring, usually holed for bolts, and welded or screwed at the end of the pipe or tube to allow objects to get attached to it. Pipe flange types different types of pipe flanges that used in piping duration.
Flanges article about flanges by the free dictionary. Flange types as already described before, the most used flange types acc. April 16, 2014 in blog, valves and fittings by tim walshauser. Slip on flange the calculated strength from a slip on flange under internal pressure is of the order of twothirds that of welding neck flanges, and their life under fatigue is about onethird that of the.
Iso flanges also called large iso have a sexless design and are made from 304l stainless or aluminum the design principles of iso and kf seals are identical. Lets take a look at what they do, what theyre made of, and some of their advantages and disadvantages. Learn different types of pipe flanges used in piping. Diameter of hub at bevel h is different from outside diameter of pipe.
The specifications in these supplementary instructions refer to flanges made of 316l. The reason why it is bored to match is because it reduces the corrosion and. Common types valves at sunrise dam ball butterfly knifegate diaphragm saunders non return or check tech taylor pinch pressure relief there are hundreds of different types of valves available. Flanges and fittings in order to address the vacuum industries requirements, alcatel offers a large range of accessories based on the 3 most popular standards used in vacuum technology. Different types of flanges free download as powerpoint presentation. Flanges are used, alternatively to welded connections, to facilitate maintenance operations a flanged joint can be dismantled quickly and conveniently.
A wide variety of hub type flange options are available to you, such as ansi, iso, and asme. There are two types of weld neck flanges, which are standard and long. Trupply has created a demonstration video to explain different types of flanges, its features and how they are used on the pipe. Flanges are joined to each other by bolting and joined to the piping system by welding or threading. C207 is a relatively new standard for which dimensions for sizes up to nps 144 in 1978 awwa c207 were just released. A gasket is a mechanical seal which fills the space between two or more mating surfaces, generally to prevent leakage from or into the joined objects while under compression.
Flanges general flange types welding neck or weld neck. The adequacy for operating conditions of any method of attachment specified should be determined by the designer ofthe piping or equipment. Each flange face is counterbored or grooved to receive a metal centering. They are produced in a variety of sizes, shapes and are categorized by their inside diameter and their outside diameter. Subscribe now and get your free ebook on piping components. Ansi flanges non standard offered can be made available by us in different sizes of up to 24. Definition and details of flanges types of flanges bevel. A flange can also be a plate or ring to form a rim at the end of a pipe when fastened to the pipe for example, a closet flange. Flange standards asme din as bs asmeansi these are commonly referred to by their class rating eg. Blind flanges are manufactured without a bore and used to blank off the ends of piping, valves and pressure vessel openings. Pocket guide to flanges, fittings, and piping data.
1264 1168 712 334 1036 1488 112 181 1382 661 287 612 269 1401 41 907 1593 842 792 28 439 1542 1407 166 1150 889 1366 974 1068 1331 1206 418 1272 364 173 570 161 1324 820