For the height measures h and b of all described dimensions of flanges on this website, with exception of the lap joint flange, it is important to understand and remember the following. Din flanges, din weld neck flanges, din threaded flanges. Din flanges, din weld neck flanges, din threaded flanges, din. Nominal pipe size outside diameter overall diameter inside diameter flange thickness min overall length diameter at weld bevel hub diameter face diameter number of holes bolt hole diameter diameter of circle of holes kg in piece mm in mm in mm in mm in mm in mm in mm in mm in mm in mm 12 0. Height of raised portion is equal to the depth of groove dimension e, is not subjected to the tolerances for e groove depth e is not included in flange thickness t but is included in the connection overall length l. Weld neck flange dimensions class 150 to class 2500. Technical data handbook for butt weld pipe fittings. Class 600 flange dimensions weld neck forged flange threaded forged flange lap joint forged flange socket weld forged flange blind forged flange slip on forged flange nom. In pressure classes 400, 600, 900, 1500 and 2500, the height of raised face is approximately 6. They are usually welded or screwed to the pipe end and are connected with bolts.
Bored to match the inside diameter of the mating pipe or fitting, these flanges are directly welded to the end of the pipe. Learn different types of pipe flanges used in piping. The weld neck flange is designed to joint a piping system by butt welding. This flange is desirable for high pressure applications. The flange union kits are used to combine a male and a female flange within. The charts show the dimensions of weld neck flange class 150, 300, 400, 900, 1500, 2500 in inches and in millimeters with dimensional tolerances. The raised face is engineered to concentrate more pressure to a smaller area on the flange, which provides an increased containment capability at higher pressures. Home datasheets flange datasheets standard connection flange datasheets flange long weld neck, ansi class 150, asme b16. Buffalo flange, houston manufactures reducing flanges to your specifications. Raised face weld neck flanges din pn10 steel on world wide. Weights are based on manufacturers data and are approximate. Browse raised face weld neck flanges din pn10 steel in the world wide metric, inc.
The knife is a group you can rotate, change the size of, and even add or remove objects within example add a function curve for an advanced cut. The neck, or hub transmits stresses to the base of the hub to the wall thickness at the butt weld, provide important reinforcement of the flange. User defined inline library all technical support deployment services field services technical account manager after point of sale resolution manager hide navigation. The flange neck has a beveled end that, when connected to a pipe, creates a trough for a strong weld. The hub, or neck, transfer the stresses to the pipe to reduce high stress concentrations.
User defined inline library all technical support deployment services field services technical account manager after point of. Weld flange dimensions welding neck flanges 150 lb. During dimensional inspection of flange, you should check for. Dimensions in inches of weld neck flanges and stud bolts.
Weld neck flanges a b dimensions welding neck flange bores according asmeansi b16. If you would like to prevent our website from using cookies or remove existing ones, you will need to adjust the cookies settings in your browser. Haihao group hebei haihao group mengcun,cangzhou,hebei,china. Browse raised face weld neck flanges din pn16 steel in the world wide metric, inc. The uses for long weld neck flanges lwn are predominantly on vessels where an extended neck is required. The bore of the flange matches the bore of the pipe, reducing turbulence and erosion. Din 2632 welding neck flanges pn1010bar dimensions, sizes and specifications of din 2632 welding neck flanges pn1010bar rotate the screen or widen the window to see full table. Schedule number or nominal wall thickness designation. In these two pressure classes, almost all suppliers of flanges, show in their catalog or brochure, the h and b dimensions including the raised face height. Weld neck flanges include a long tapered hub that aid in reinforcement and provide temperature pressure resistance. Stainless steel raised face weld neck flanges, are used to block the end of a pipe system or valve. This allows for the transfer of stress from the flange to the pipe itself. Weldneck flanges or weldingneck flanges can be differentiated from all other types of flange by their long tapered hub.
Weld neck flange is typically provided with a raised facerf, flat faceff, or ring type joint facertj. Weld neck flanges a b, stainless steel weld neck flanges. As with the weld neck, these flanges are generally made from forged steel. Weld neck flanges and stud bolts dimensions asme b16. The inside diameter of this attachment is machined to match. Standard bore will be furnished unless otherwise specified. The uses for long weld neck flanges are predominantly on vessels where an extended neck is required. Weld neck flange class 150 jis flange, din flange, ansi. Weld neck flanges, welding neck flange, slip on flange, blind flange. These flanges will be furnished with a 116 raised face unless otherwise specified. This also reduces high stress concentration at the base of the hub. Email this page download pdf download pdf printable page. Stud bolt guide bolt tightening procedure flange bolt chart heavy hex nut dimensions. Fastenal uses cookies to improve website user experience.
Flange en10921 type 11 flange, pn6, pn10, pn16, pn25. Dimensions in inches of weld neck flanges and stud bolts asme. The bore of the weld neck flange matches the pipe bore. Lapjoint flanges with neck ring for welding type 34 en 10921. Long weld neck standard connection flanges texas flange. Dimensions of stainless steel weld neck flange bores nominal pipe size outside diameter nominal bore diameter sch. Reducing flanges are the most economical way to mate pipes of differing sizes. You can also make your own knife by naming a group theknife. In order to meet our customer needs they come in different connection types and sizes. The weldneck is therefore favoured in critical applications. Stocked and manufactured in carbon steel, stainless steel, and variety of other metals and alloy. In pressure classes 150 and 300, the height of raised face is approximately 1. The stress relieving of butt welds joining valves to fabricated assemblies must.
For all your reducing flange needs, email us or call wats 18002314174 or 79439600. Necks are furnished bored, faced and spot faced or back faced. Dimensions, sizes and specifications of din 2632 welding neck flanges pn1010bar engineering toolbox enabled for use with the amazing free sketchup 3d drawing and modeling program. Coastal flange stocks import and domestic ansi b16. Nominal size and bore of flange hub and bore dimensions hub length threaded linepipe flange hub length threaded casing flange hub length welding neck linepipe flange neck diameter welding neck linepipe flange tolerance maximum bore of welding neck flange l1 l2 l3 l40. Weld neck pipe flanges are installed by welding the pipe to the neck of the flange. Weld neck flange dimensions are covered in asme b16. Extra heavy wall thicknesses are identical to stainless steel schedule 80s in sizes through 8 other types, sizes, and thicknesses of flanges can be provided to meet application. Seamless long welding necks will be furnished drilled and with a 1 16 raised face which is included in thickness q and length y. Some of the flange materials such as stainless steel are highly resistant to heat.
Benefits of using weld neck flanges weld neck flanges. Page, in estimators piping manhour manual fifth edition, 1999. Bolt circle diameters are 18 inch larger than bolt diameter. This is deemed to be a specialty flange due to the protruding neck or hub, which acts as a boring extension. Weld neck flanges, weld neck flange manufacturer in china. Forged seamless long welding necks asme class 150 2500 dimensional data 56 robertjames sales, inc. A gasket is inserted between the two mating flanges to provide a tighter seal. The socket weld flange is designed to standard dimensions stipulated by asme b16. Dimensions of weld neck flange bores unified alloys. Weld necks are often used for high pressure applications.
Nominal pipe size outside diameter o thickness t raised face diameter r length thru hub y point of weld a hub diameter x bore b number of holes diameter of. Flate face ff, raised face rf, ring type joint rtj ss flange standards types and pressure class. Weld neck pipe flanges are typically provided with a raised face, flat face, or rtj facing. Weld neck flange is the most widely used type in process piping. Weld neck flanges are welded directly to the pipe at the neck of the flange.
Forged or rolled alloy steel pipe flanges, forged fittings, and valves and. It is designed to transfer stresses to the pipe, thereby reducing high stress concentrations at the base of the flange. Dimensions listed for socket weld and weld neck flanges are for standard. Din flanges are widely used in special circumstances with their main advantage being that they can be attached to the pipe without welding. Flat face flanges may be provided at full thickness, c, or with raised face removed the latter is nonstandard. The welding neck flanges is normally referred to as the high hub flange. Dimensions in inches weld neck flanges and stud bolts asme b16. We do not use cookies for the processing, collection, or storage of personal data under any circumstances. Class 600 flange dimensions duplexstainlesssteelflanges. These standard flange are resistant to corrosion and abrasion and ensure high durability. A pipe flange is a disc, collar or ring that attaches to pipe with the purpose of providing increased support for strength, blocking off a pipeline or implementing the attachment of more items.
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. This datasheet is for weld neck flanges that have a raised face connection. This type of flange is available in large sizes also to connect bigbore piping with. The pipe flanges are the second most used joining method after welding. The weld neck flange is also engineered to match the inside diameter id of the. These forged flanges are used to connect two pieces of pipe or valve onto a line.
Weld neck flange advantages suitable for high pressure and high heat applications. Forged carbon steel, dimensions conform to ansi b16. The extreme pressure that is developed in piping applications throughout the industry calls for highpressure resistance. Raised face weld neck flanges din pn16 steel on world wide. Weld neck flanges or welding neck flanges can be differentiated from all other types of flange by their long tapered hub.
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