Pipe flange standards pdf

Slipon flange is suitable for low pressure and temperature application. Duwa piping can deliver flange and pipe fitting exworks in 3 days, and guarantee the quality 2nd longer than others. British standards and specifications for pipe, tube and fittings carbon and lowalloy steel classifications steel is considered to be carbon steel when no minimum content is specified or required for chromium, cobalt, columbium niobium, molybdenum, nickel, titanium, tungsten, vanadium or zirconium. Pipe inch mm pipe bo d t t g f r h x c holes bolt dia. Anvil pipe fitters handbook 5 gruvlok installation pipe and flange data weld fitting and steel flange data table of contents gruvlok tech. These and other standards are referenced throughout this section either by the full ansiawwa designation or by only the awwa numbering, such as awwa c110 or c153. Pipe 2014 edition p 4 flange compatibility and pressure ratings the ansiawwa c115a21. Methods of welding flanges to pipe the methods used in welding flanges to pipe will vary according to the type of flange and are basically the same as those used in standard welding practices. The flange is placed on pipe and fillet welded from both inside and outside. The pipe schedule, this is a 2 inch nominal pipe, and this is a standard schedule pipe, and this is a standard schedule socket weld flange. Flange compatibility and pressure ratings the flanges of ansiawwa c110a21.

Lanl engineering standards manual pd342 chapter 17 pressure safety section d20b31. Flange dimensions are determined by the pipe size and the pressure class required for the application. Process piping fundamentals, codes and standards module 1. 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. Material standard for steel pipe flanges and orifice flanges project standards and specifications page 2 of 16 rev. American ductile iron flanged fittings the principal standard covering flanged fittings is ansiawwa c110a21. A pipes pn number describes the nominal pressure in bars that a pipe can support with water at 20 o c. 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. Steel pipe flange standards china hebei haihao flange factory. Slipon flange has a hole with matching outside diameter of pipe from which pipe can pass. A blind flange is a plate for covering or closing the end of a pipe. A pipe s pn number describes the nominal pressure in bars that a pipe can support with water at 20 o c.

Bs flange is a flange system from england, which have flange type including welding neck flanges, plate slipon flanges, screwed boss flanges, slip on boss flanges, blind flanges etc. Phelps has the equipment and capability to supply all standard sizes in 125150 lb. Flanges are joined by bolting, and sealing is completed with the use of gaskets and other sealing methods, and fixed to the piping system by welding or threading. Standard flange gaskets are fabricated to be compatible with asmeansi pipe flanges in accordance with dimensional criteria shown in api standards 601 and 605. Outside diameter od remains same for a given size irrespective of pipe thickness. This activity eventually grew into full coordination of the international sales. For welding neck and lap joint stub and flange applications an initial root gap spacing between pipe and flange should be 116 to 18. Carbon steel pipe, fittings and flanges atlas steels. Awwa c11511 flanged ductileiron pipe with ductileiron. En 10220, en 1127 pipe size charts projectmaterials. It covers evaluations and standards for the following characteristics, noted in both metric and u. Also included in this standard are requirements and recommendations regarding flange bolting, flange gaskets, and flange joints. Thus flanged wheels are wheels with a flange on one side to keep the wheels from running. We are also fully tooled for a specialized range of full face.

Awwa standard for steel pipe flanges for waterworks servicesizes 4 in. Flanges are standardized according publications from. The pressure grades available according to european standards are. Included are 1 flanges with rating class designations 150, 300, 400, 600, 900, and 1500 in sizes nps 12 through nps 24 and flanges with rating class. Carbon and alloy steel pipe flange in astm a105, a182. Grey cast iron copper alloy cast and forged steel pn 6 120 90 4 m12 14 70 2 16. Flange dimensions en10921 introduction british metric standard bs4504 is now obsolete and replaced by en10921 edition 092008 for steel flanges which also incorporates din standard. The en 10220 and en 1127 specifications cover the dimensions and tolerances of european pipes, carbonalloy steel, and stainless steel respectively. Learn different types of pipe flanges used in piping. Prochem piping products flanges a flange is designed to connect sections of pipe or tube, or to join the pipe or tube to an assembly such as a pressure vessel, valve or pump. Pipe od in 5s 10s 10 20 30 40 std 60 80 xh 100 120 140 160 xxh size inches. Flange drillings in en10921 are generally the same as bs4504 and din 2501 but en10921 covers a wider range.

This double marking makes it clear that both standards are met. Jis flanges 2 kgcm2 blind slipon pipe inch mm pipe d do t c holes. A flange joint is a connection of pipes, where the connecting pieces have flanges by which the parts are bolted together. The bs en 10220 specification covers the dimensions and the. Contamination to pipe from any ferritic sources shall be avoided. Flange material with yield strengths 331 mpa 48 ksi and higher shall be. Columns related to castings in table 1a shall be omitted.

Jis flanges find the best stainless steel pipe fittings. Pipes full face flangetyte gaskets or ring flangetyte gaskets 4 through 64size are recommended for all flanged joints. Flange tables flanges are commonly used to connect valves into pipework making it easier for removal and maintenance. Pressure nominal pn is a term used to describe the pressure that a pe pipe is designed to safely withstand. Flanged pipe and flanges are rated for a maximum working pressure of 250 psi 1,720 kpa. Ansi flanges find the best stainless steel pipe fittings. Flanges described in the awwa c20701 tables are intended for use with steel pipe, fittings or appurtenances meeting the requirements of ansiawwa c200, ansiawwa c208, astm a4, astm 9, or other equivalent standards. Because of different dimensions, these two systems cannot interchange. Project standards and specifications page 6 of 16 rev. American national standard for flanged ductileiron pipe with ductileiron or grayiron threaded flanges, ansiawwa c20794. Carbon steel pipe flanges dimensions and weights atlas steels. History for over 150 years, anvil has been a trusted name in piping solutions by consistently providing quality products, service, and support to the pvf industry.

There are many common flange standards and flanges within the same standard can etiher be flat commonly cast iron, ductile iron or raised face commonly cast steel and stainless steel. Pipes, valves, fittings and accessories, classdesignated. Flange pressure rating in asme could be divided into 150, 300, 600, 900, 900, 1500, 2500 grades. Do not weld on containers that have held combustibles, or on closed containers such as tanks, drums, or pipes unless they are properly prepared according to aws f4. It addresses gaskets that are dimensionally suitable for use with flanges described in reference flange standards asme b16. Flanges are standardized according publications from organizations like asme, mss, api and others. Flange weights, dimensions and working pressures prochem. American countries and china mainly adopt asme or ansi. Considerable assistance has been drawn from bs 4504. While en 10220 and 1127 are used in europe, asme b36. The methods used in welding flanges to pipe will vary according to the type of flange and are basically the same as those used in standard welding practices.