Blind flanges a blind flange is most often used in applications, which require stopping up the end of a flanged pipe, pressure vessel or valve. Flange connections are used extensively in industrial applications handling high pressures. Flange typesweld neck flangeslip on flangethreaded flangeblind flangesocket weld flangelap joint flangestub end. Types and uses of coupling devices engineering essay. Composite gaskets are a combination of metal and nonmetal. A flange joint is a plate or ring to form a rim at the end of a pipe when fastened to the pipe. You can see the difference in their crosssection view. Screws with threads for use with a nut or tapped hole. A fastener is a hardware device that is used for creating nonpermanent joints. A closer look at 6 different types of flanges world wide. This flange is used to blank off pipelines, valves and pumps, it can also be used as an inspection cover. May 07, 2017 in this video we will learn how many types of flanges available in piping industries like our facebook page do like. Their static strength is equal to slip on flanges, but.
Other alternative methods of joining processes for joining materials include welding, soldering, brazing, crimping, taping, cementing, gluing. The table to the right shows atms numeral designation as it corresponds to flange type. They are mechanical seals, generally ringshaped type and fitted for sealing flange joints. Isolarge iso lfmf the iso large flange standard is known as lf, lfb, mf or sometimes just iso. Slipon flanges are easy to use in fabricated applications. Double claw clamps are usedwhen a pair of of flanges are joined seediagram a. These types of flanges are used with another type of flange to isolate the piping system or to terminate the piping as an end. As already described before, the most used flange types acc. Welding neck, slip on, socket weld, lap joint, threaded and blind flange. Machine screws with a thread cutting self tapping point. It gives the highest level of joint integrity due to buttwelded with a pipe. Welding neck flange, slip on flange, socket weld flange, lap joint flange, threaded flange and blind flange. Spiral wound gasket application range, therefore, from oil and gas to power generation.
Different types of welding joints the welding master. The socket weld flange is bored to the id of the pipe and counter bored slightly larger than the od of. Flange coupling flange coupling with labelled parts. To refresh your memory, lets take a look at six different types of flanges. The metal is intended to offer strength and resiliency, while the nonmetallic portion provides conformability and sealability. Valve types and features the three basic functions of valves are. Standard weld neck flanges are used in butt weld fittings. The threaded flange fig ure i, through class 400, is connected.
Different types of combination of materials are possible based on service requirement. Flanges types different types of pipe flanges part 1 youtube. Flanges are used, alternatively to welded connections, to facilitate maintenance. Additional decisions involve facing and surface finishes, and the appropriate. Drilling machine parts, its types, operations and more complete guide with pdf. Gaskets general nonmetallic flat, spiral wound gaskets. All flanges are manufactured in accordance with industryaccepted standards.
Some sizes share their flange dimensions with their respective larger neighbour and use the same clamp size. Apart from these basic uses, the different types of couplings devices have different uses which are mainly reflected in the material, flexibility, and utility. Flange types are noted as suffixes in the atm model number system, ex the suffix g2. Its important to understand the differences between the shapes and drive types, not. Vacuum joints types and uses kansas state university. Flange coupling is also an easy to manufacture coupling and is similar to sleeve coupling. Often used semimetallic gaskets are spiral wound and camprofile, and a variety of metalreinforced graphite gaskets. Finding the right type of screw head for your project when there are hundreds of combinations of the drive type and head shape can be confusing, especially for beginning diyers. In this type one of the faces of flange, lying against the other face, is flat. The diagram below shows how and why the bores are different for the various flange types. A pipe flange connects piping and components in a piping system by use of bolted connections and gaskets.
Long weld neck flanges are used with vessel nozzles and equipment. Note 4 diameters n1, n2 and n3 of flange and collar types 11, 12, 21 and 34 are the theoretical values permitting the use of ring spanners. Learn about types of flanges threaded,socketweld,slipon,lap joint,weld. Types of pipe fittings used in piping a complete guide. Pipe is threaded or welded to the flanges, which are then sealed together usually with bolts. Probably the best welding flange available because of its high, heavy neck. Most commonly used flanges are weld neck flange, slip on flange, blind flange, socket weld flange, threaded flange and. Saunders valves are ideal for restrictive or flow control duties ie valve half closed to reduce flowrate. Most commonly used flanges are weld neck flange, slip on flange, blind flange, socket weld flange, threaded flange and lap joint flange rtj flange. It is basically flange part but covered under asme b16. Composite gaskets are a combination of metal and nonmetal material. Fastener type chart wood screws machine screws thread cutting machine screws sheet metal screws self drilling sms screws with a smooth shank and tapered point for use in wood.
Despite the fact that welding is required, they are considered to be one of the easier types of flanges to properly fit and align. Common types diaphragm saunders valves diaphragm valves commonly known as a saunders, after a popular brand name work on the principle of a rubber diaphragm or bladder opening and closing. There are two types of the metallic gasket are used with rtj flange octagonal and oval. The flanges are created to match the pipes inside diameter or fitting.
L3 nardaatm standard waveguide flange size details microwave. This flange is slipped over the pipe and then fillet welded. 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. A vacuum flange is a flange at the end of a tube used to connect vacuum chambers, tubing and vacuum pumps to each other. 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 most common check valve is the disc type horizontal or vertical. Socket weld flanges were initially developed for use on smallsize high pressure piping. Gaskets are made as per by construction, materials and features.
These types of flanges are used in high pressure and temperature application. A flange joint is a connection of pipes, where the connecting pieces have flanges by which the parts are bolted together. Flanges are used, alternatively to welded connections, to facilitate maintenance operations a flanged joint can be dismantled quickly and conveniently. The flange is then slipped over the stub end and bolted up. Important gaskets used are nonmetallic, spiralwound and ringjoint type fig. Learn different types of pipe flanges used in piping.
The types of pipetoflange connections include the following. This coupling also known as sleeve coupling because it has sleeve or a kind of. Vacuum flanges several vacuum flange standards exist with. Threaded socket welding or socket weld slipon welding or slip on lapped or lap joint welding neck or weld neck blind flange types threaded. In machinery, a device for providing a connection, readily broken and restored, between two adjacent rotating shafts. Chart showing 60 types of screws, screw heads, bolts, nuts and washers chart.
A blind flange is a plate for covering or closing the end of a pipe. There are two types of weld neck flanges, which are standard and long. Alibaba manufacturer directory suppliers, manufacturers. They can also be found connecting residential pump systems. Providing support and strength, two flanges are typically attached to pipe ends with a gasket in between. This flange type will be welded to a pipe or fitting with a. This means a dn10kf can mate to a dn16kf by using an adaptive centering ring. The valve guard, poppets, springs and wear shims are conventional. In this video we will learn how many types of flanges available in piping industries like our facebook page do like. Parts, types, working principle, least count, errors and more complete guide 10 different types of lines used in engineering drawing. A coupling may provide either a rigid or a flexible connection. Flange types weld neck flange slip on flange threaded flange blind flange socket weld flange lap joint flange stub end.
Flanges general flange types welding neck or weld neck. Different types of coupling come under this category some are them are as follow. As name implies flange coupling has flanges for the joining of both the shafts. To give a broad overview, a good and efficient coupling device is an.
Flange types are noted as suffixes in the atm model number system, ex the suffix g2 indicates that a grooved, all tapped holes flange is the designated flange interface. The type of flange to be used for a piping application depends, mainly, on the required strength for the flanged joint. A flange joint is a connection of pipes, where the. In this type of flange, the stub is butt welded to the pipe, whereas flange is freely moved over the stub end. Same goes for dn20kf to dn25kf and dn32kf to dn40kf.
The engineer or designer must choose among several flange options. Of hole size diameter thickness circle holes size size diameter thickness circle holes size 14 314 38 2118 3 916 14 3114 1116 2118 3 918 318 3318 38 214 3 916 318 3318 1116 214 3 916. The types and uses of weld neck flanges forged components. Indeed, a spiral wound gasket is designed to withstand, better than other types of flange gaskets, the mechanical stress generated by high temperature and pressure applications. They are used for medium to heavy duty load with moderate speed.
Internally welded socket type flanges are typically used in chemical processes, hydraulic lines and. Usually used in water pipework systems and installed immediately after the pump. Weld neck flange is the most widely used type in process piping. You have clicked a page that seems to be very popular. The weld neck or welding neck flange is bored to the id of the pipe and has a high neck to which pipe is welded. This flange is counter bored to accept the pipe before being fillet welded. Here, there are flanges on either side of the 2 sleeves. Flange ordering information double ridge waveguides. The types of flanges for piping explained projectmaterials. Spiral wound gasket application range, therefore, from oil and gas. Contents include definition of mechanical considerations for a bolted flange connection, important considerations for flanges, fasteners, and installation best practices. Vacuum flanges are used for scientific and industrial applications to allow various pieces of equipment to interact via physical connections and for vacuum maintenance, monitoring, and manipulation from outside a vacuums.
A coupling is a device used to connect two shafts together at their ends for the purpose of transmitting power. To select the correct valve to fulfill these functions properly, an outline of the different types of valves and their features is given below. Iso flange assembly instructions opti onal fastener flanges are joined around the periphery with clam ps. It also provides easy access for cleaning, inspection or modification. Different types of flange faces are used as the contact surfaces to seat the sealing gasket material. Both the flanges consist of equal number of threaded holes for bolting purpose.