Some flanges are bolted together to form connections between pipes, while othersblind flangesare used to. Welding neck flanges area unit straightforward to acknowledge at the long tapered hub, that goes bit by bit over to the wall thickness of a pipe or fitting. Flanges are joined to each other by bolting and joined. Blind flange manufacturer duwa piping can supply the blind flange in all sizes, materials and specifications strictly acc. Pipe flanges are an important parts of piping systems. We can also offer the fittings in other nonstandard as per customers drawings. A leading manufacturer of athletic shoes, merges with a soft drink firm. Ansi flanges non standard offered can be made available by us in different sizes of up to 24. Here below you will find a short description and definition of each type, completed with an detailed image. With regard to their stabilitytemperature property, the material s 1.
To refresh your memory, lets take a look at six different types of flanges. 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. Weldneck flanges create a smooth weld matching the thickness and bevel of the pipe. It also provides easy access for cleaning, inspection or modification. The flanges are created to match the pipes inside diameter or fitting. Api 2000,3000,5000 and there are two high pressure series, api 10,000 and 15,000. Blind flanges, blind flange manufacturer in china duwa. 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. There are different types of pipe flanges used in the piping systems depending upon the fluid, pt rating, material of construction, connecting equipment etc. Flanges astm a234 butt weld pipe fittings,a182 forged. A compact flange, similar to a swivel ring flange, is a twopiece constructed flange used extensively for offshore pipelines, offshore industry applications and onshore and subsea applications. Lap joint flanges have all the same common dimensions as any other flange. Choose to process a variety of highquality flanges to identify titanium machinery, pipe flanges refer to the flanges used in piping in pipeline installations, used on the equipment to refer to the inlet and outlet flanges of the equipment.
The dimensions and weights of slipon flanges ansiasme are available on this page. Blind flanges are manufactured without a bore and used to blank off the ends of piping, valves and pressure vessel openings. A merger between companies that are in direct competition with each other in terms of product lines and markets. Below are the types of flanges used in piping based on facing. Below you will find a short description and definition of each type, completed with an detailed image. Flange weights, dimensions and working pressures prochem. A blind flange is a plate for covering or closing the end of a pipe. Flanges astm a234 butt weld pipe fittings,a182 forged pipe. They are used to provide sufficient strength to the connection and prevent leakage.
As already described before, the most used flange types asme b16. Typically used for highpressure applications, weldneck flanges are the most commonly used flange style. Threaded flanges can be fitted to pipes of various sizes without welding and this is one chief benefit for which these flanges are highly demanded. The different forms of flanges within the en 10921 european norm euronorm is indicated within the flange.
Varinline housing according to four different pipe standards. The flange is slipped over the pipe and is settled by welding at both top and base side of the flange. Mergers are rare, since most often companies are acquired by other companies, and it is more of absorption. Additional decisions involve facing and surface finishes, and the appropriate. All prosperity is a professional manufacturer of different types flanges, our flanges types through meticulous produced are quite durable, please contact us for more. There are holes in the flange, and the bolts make the two flanges tightly connected. 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. Flanges general what flanges are used in petrochemical. Flange joint is an assembly of three different components.
They can be used in extremely high pressure applications, particularly at or near atmospheric temperature, where the necessary post weld heat treatment is not possible. Threaded flanges,steel threaded flanges,bronze threaded. Long weld neck flanges are used with vessel nozzles and equipment. It is slipped over the pipe and a stub end is welded onto the pipe. These may be either smaller or large diameter flanges and as you would expect, there are a variety of different styles of ansi flanges used by process engineers across a wide range of industries. Flanges are joined to each other by bolting and joined to the piping system by welding or threading. Only the flat face variant of each type of flange has been illustrated as they are the most. Flange types ap various types of flanges manufacturers. Its double sealing action prevents hydrocarbon releases to address health and safety issues and concerns. In particular the different approval criteria needed for the different types of iso. This type of flange, as implied by its name, has a diameter slightly larger than the pipe so that it can slide over the pipe to fit snugly. Stainless steel flanges are highly resistant to corrosion and contain enough strength for your industrial piping plan. Gasket material saves money by allowing less precise mating surfaces on machine parts which can use gasket material to fill irregularities.
Moving into our extensive warehouse, weld fittings and weld flanges are carefully arranged from floor to. They can be horizontal deals, in which competitors are combined. Slipon blind lapjoint socket weld threaded weldneck orifice. C207 is a relatively new standard for which dimensions for sizes up to nps 144 in 1978 awwa c207 were just released. These pipe flanges are used when the counter flanges are flat face. Some of its features include different material choices like stainless steel, carbon steel, alloy steel and. A flange joint is a connection of pipes, where the connecting pieces have flanges by which the parts are bolted together. Jis b2220 slip on hub flange is a method of connecting pipes,valves,pumps and other equipment to form a piping system. Download the complete crp lined pipe and fittings brochure pdf. The jis b2220 slip on hub flange is usually manufactured i. In case this is the first time youre hearing the phrase, ansi flanges simply refers to flanges whose construction meets ansi american national standards institute specifications. 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.
Flange types weld neck flangeslip on flangethreaded flangeblind flangesocket weld flangelap joint flangestub end. There are five basic categories or types of mergers. To ensure your always familiar with these, here are 6 of the most common flange types and a description of what they are best used for. The number of the series indicated corresponds to the maximum working pressure expressed in psi at a temperature of l00. The dimensions of the welding ends comply with the following standards.
Learn different types of pipe flanges used in piping. Pipe flanges a method of pipe joints and its classification. Slipon flanges the calculated strength from a blunder on rim beneath internal pressure is of the order of common fraction that of fastening neck flanges, and their life beneath fatigue is. These types of flanges are used in high pressure and temperature application.
Based on flange facing types, it can be further classified as. Pure conglomerate mergers involve firms with nothing in common, while mixed conglomerate mergers involve firms that are looking for product extensions or market extensions. Welding neck flanges are easy to recognize at the long tapered hub, that goes gradually over to. A flange is a shield or a ring that is fixed to a pipe to form a circular frame at its end. The engineer or designer must choose among several flange options. November 12, 2014 in blog, valves and fittings by tim walshauser. Welding neck flange welding neck flanges are easy to recognize at the long tapered hub, that goes gradually over to the wall thickness. With a diameter that matches the inside of the pipe, they work by transferring pressure from the flange to the pipe. Providing support and strength, two flanges are typically attached to pipe ends with a gasket in between. Api 6a specification for wellhead and christmas tree equipment. Pipe flanges are used at places where piping, instruments, valves, equipment etc. Blind flanges are also used as a manhole cover in the vessel. 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.
The available types have been represented through tables of dimensions and diagrams. A flange is a method of connecting pipes, valves, pumps and other equipment to form a piping system. Select multiple pdf files and merge them in seconds. They are produced in a variety of sizes, shapes and are categorized by their inside diameter and their outside diameter. Though they are thinner than most other flanges, they are strong, dependable, and costeffective. 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. With 2 flanges coupled together by a centering ring with a oring and a clamp fig. In this article, we will look at different types of mergers that companies can undergo. Thus flanged wheels are wheels with a flange on one side to keep the wheels from. Flanged joints are made by bolting together two flanges with a gasket between them to provide a seal. Thus flanged wheels are wheels with a flange on one side to keep the.
It is also important to realize that while valves incorporate these flanges, their pressure ratings may differ based on different valve standards. A plate or ring to form a rim at the end of a pipe when fastened to the pipe. There are two types of weld neck flanges, which are standard and long. 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. A105a105m a181a181m a182a182m a350a350m a694a694m a707a707m a988a988m a989a989m a522a522m flange dimensions are determined by pipe size and pressure class required for the application. Nonmetallic flat gaskets with or without inserts, published by the european committee for standardization cen. Flanges and their joints dimensions of gaskets for pn. A wide variety of different types of flange options are available to you, such as ansi, iso, and asme. Varivent control valve, type s divert valve productmerging. A merger takes place when two companies combine together as equals to form an entirely new company.
Types of mergers, acquisitions, and corporate restructurings mergers and acquisitions are usually, but not always, part of an expansion strategy. Which are the most common types of flanges used in piping. Asme flanges compact flanges the raised face rf on an asme flange is a weak point fact. 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. Call toll free 8008244166 or 5308424457 fax 5308429 visit our web site. Keep reading for brief descriptions of the most common types of ansicompliant flanges. Learn about types of flanges threaded,socketweld,slipon,lap joint,weld neck,blind flanges. For example, some butterfly valves with class 125 flanges have flanges capable of 250 psig, but awwa c504 rubberseated butterfly valves limits the maximum working pressure of gray iron valves to 150. A closer look at 6 different types of flanges world wide. 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. This flange type will be welded to a pipe or fitting with a single full penetration.
Understanding joints, connections and the most common flange types used in the oil and gas industry is a core requirement to keep these levels of safety and attitudes the same. Flanges general flange types welding neck or weld neck. Standard weld neck flanges are used in butt weld fittings. Flanges and fittings isokf flanges and fittings easy and reliable isokf flanges and fittings allow quick release and tight connections from 10 to 50 mm nominal diameters. Api flanges flanges and studded blocks are designed and manufactured in accordance with the following specifications. Varinline housing connection flange, type u and us. Welding neck, slip on, socket weld, lap joint, threaded and blind flange. High pressure steel flanges are essential to include in your next piping project. The types of flanges for piping explained projectmaterials. Because of this, awwa c207 is used for large steel flanges in the waterworks industry. These types of flanges are used with another type of flange to isolate the piping system or to terminate the piping as an end. The latest version provides dimensions and ratings in both metric and inch units.