Api and asmeansi flanges are not necessarily interchangeable, however some of the rtj styles from asme b16. Api 6a flange material consists of many other elements such as stainless steel, hastelloy, monel, inconel, titanium, duplex steel, nickel alloy, copper nickel and many more. Api 6a spec flange bolt ring chart free download as pdf file. Api flange dimensional data flange size working pressure diamater of bolts length of bolts api ring gasket 20,000 14116 8 8 1034 bx154 4116 2,000 103. Type 6bx flanges are of the ring joint type and designed with a raised face. Api spec 6a does not specify overall length of 6bx weld neck flanges, but instead provides dimensions of specific portions of the flange, with toler ance, that are added together. Api6a 6b flanges threaded flange weld neck flange blind flange for ring gasket number and pcd of ring groove see below. This international standard, which has been technically revised, is based on api spec 6a, nineteenth edition, july 2004 and its addendums and errata, and api spec 6av1, first edition, february 1996 and its errata, with the intent that the twentieth edition of api spec 6a will be identical to this international standard.
Api type 6b flange api type 6b flange api type 6bx flange l with r gasket with rx gasket s s l no standoff l figure 3. Api 6a flanges manufacturer in india, api flanges material. The blind flanges are used to terminate a connection completely and are not connected to more. Specification for wellhead and christmas tree equipment. Jul 12, 2019 5 18 15,000 psi end flange dimensions. Additionally, the slip on raised cs api 6a type 6b flange aids in up surging the repression competence of this joint. Api 6a 6bx flange and api 6a 6b flanges pipe fittings. Api 6a 6b and 6bx flanges welding neck flanges, blind flanges, target flanges are field proven flanges which strictly designed and manufactured according to api 6a and api spec q1 forged all kind of flanges are delimited by api 6a as below. Product range api 6d api 6a size inmm pressure range size inmm pressure range service asme asme asme asme api api api api 150 600 900 1500 2500 2000 3000 5000 0 side entry mod. Double studded adapter flange we supply dsafdouble studded adapter flange in various sizes and pressure ratings as per customers specified thickness, consistent with design considerations. Flangeboltingtorquevaluesrecommendedbyapia6a20thedition. Api 6a spec flange bolt ring chart industrial processes joining. Key features can be used to connect flanges with any combination of sizes and pressure ratings custom dsas are available to transition. Api 6a flange elite flanges all about flanges pipeline flanges.
Api 6a flange type 6bx flange,api 6bx flange oilfield api 6a. Our flange factory is located in mengcun county,cangzhou city,hebei province,we are specialized in the production of forged steel flanges,plate steel flanges. Din 2501 pn10 slip on flange and ss plate flange dimensions. Ring gaskets, flange bolts and nuts, tap end stud installers.
You can easily obtain flange bolt sizes, bolt torque, and ring gasket. Hebei haihao flange factory,established in 1982,is one of the biggest flanges manufacturer in china. Api 6a type 6b flange and api 6b 5000 psi blind flange dimensions. Api 6a flanges catalogue hydraulic and offshore supplies. Vb2vb3 standard 29c to 220c 20f to 428f 1 64 25 1600 1 56 25 1400 1 42 25 1050 1 24 25 600 1. For ring gasket number and pcd of ring groove see below. Check api 6a flange catalogue api 6a flanges manufacturer in india, suppliers of api flanges material in uae, malaysia, philippines, south africa, uk and australia. Ed section question answer american petroleum institute. Type 6bx flanges are of the ring joint type and designed with.
Check api 6a flanges and api 650 flange dimensions. Api 6a type 6bx 0 psi flange dimensions dimensions of type 6bx flanges for 0 psi 69 mpa rated working pressure. Assumptions concerning material properties throughout the cross section of. Flanges for wellhead and christmas tree equipment weld neck, integral, blinds, targets and test blinds pressure ratings. For ring gasket ring groove dimensions see page 25 to 29 of our oilfield catalogue. Api 6a flange elite flanges all about flanges pipeline. Tr0501 specification for wellhead and christmas tree equipment ansi api 6a iso 104232003 19th edition tr0502 a series of stress analysis documents by harry sweet. Please refer to cctf catalogue stainless steel flanges for the popular classes 150 and 300 pn 20 and 50. Double studded adapter flanges,dsa flange oil field api 6a flange. As with all solid metal ring type joints including style r, it is recommended to replace the ring when flange connection is broken. Dimensions of type 6bx flanges for 0 psi 69 mpa rated working pressure. It should be also highlighted that for high pressures 15k and 20k api flanges need to use strong, min 75k in yield strength material. Marking and identification each valve is identified on proper name plate and on valve body as required by api 6a, msssp 25, asme b16. Rx and bx gaskets provide a pressureenergized seal but are not interchangeable.
Therefore, one of the flanges in 6 bx connection shall have a raised face. Facetoface contact is not necessary for the proper functioning of the 6bx flange. The rated pressure for the applicable pressure class is in accordance with api 6a. Available in both oval and octagonal configurations, both types are interchangeable on the modern octagonal type grooved flanges. Dimensions 6 bx integral flanges api 6a 2000 to 20000 psi working pressure. Type 6bx flanges are of through bolted or studded design.
Check dimensions of api 6b weld neck flange, we provide api 6a blind flanges with instant delivery, distributors of api slip on flange in india. Nominal pipe sizes marked apply to class rating 2000 only. Catalog 4300 hydraulic flanges components dual seal flanges. Flanges for wellhead and christmas tree equipment weld neck, integral, blinds, targets and test blinds pressure ratings max working pressure. Mss, api, awwa, ansi and csa standards ansi, mss and api standards govern flange dimensions and tolerances. The flexitallic group is the international market leader in. Reference x dimension for hub of 6b flanges making annex f normative complete removal of segmented flanges removal of weldneck flanges removal of pressurecontaining pressure controlling language requiring higher 20e bsls as normative base level pr3 annex fully developed hpht philosophy. Included, you will find a chart comparing old api series flanges with many ansi flanges and current api flanges. We also have engaged in research and design in flanges,rings,customized forgings, and have made excellent achievements in the high. K p e t q x bc n h ln hl jl ring number r or rx 2 116.
The slip on raised carbon steel api 6a type 6b flange or sorf, is typically produced with the inner diameter of the flange being slightly bigger in comparison to the outside diameter of the pipe. Flange cieche api tipo 6bx api type 6bx blind flanges 1 16 2 1 16 2 9 16 3 1 16 4 1 16 5 1 api spec. This international standard, which has been technically revised, is based on api spec 6a, nineteenth edition, july 2004 and its addendums and errata, and api spec 6av1, first edition, february 1996 and its errata, with the intent that the twentieth edition of api spec 6a will be identical to. Anello pressione di esercizio max 80 bar max working. General information and description seaco manufactures and supplies a large variety of ring joint gaskets. Api flange dimensions, api flange sizes, api flange slide rule. Api 6a flange catalogue, check api flanges dimensions, api 6a. Depending on the tolerances, the connection makeup bolting force may react on the raised face of the flange when the gasket has been properly seated. Nominal pipe sizes in brackets apply to class rating 3000 only. Besides having the api 6a type 6b flange in various tolerances, grades, size, specification and thickness in stock, we also manufacture these api 6a type 6b flange dimensions as per the details or customizations as required by.
Unique specification and dimension is provided and based on that the. Api 6a flange, api 6a spectacle blind flange dimensions weight. The more popular ring type joint materials, with the recommended maximum hardness and identification as specified in api 6a,are shown in the table below. These are of ring type and are designed with raised face. Formakeuptorqueforfluoropolymer coatedb7l7boltsand2hnuts, seepage10ofthisdocument.
Ring gasket numbers as specified by api specs 6a and 17d. It is always recommended that the gasket material be softer than the mating flanges. Buy api 6a type 6bx flange at low price, suppliers of api specification 6a iso 10423 in. The rtj standard size gaskets are manufactured in accordance to api 6a and asme b16. If not, what criterion was appliedfor api designedflanges. Dimensions 6bx integral flanges api 6a 2000 to 20000. Tr0503 stress calculations and design criteria for clamp type. Api spec 6a specified, 6 bx weld neck flanges, have material and dimensions that conform to the r equir ements for full bor e integr al flanges. Materials the gasket material should be selected to suit the service conditions.
The api 6a is a specification by the american petroleum institute. Refer to 17d torque chart on page 11 when using 6bx flanges for subsea applications see page 12 of this document for important notes. Api 6a 6b 6bx flanges api blind weld neck flange manufacturer. Cctf flanges are available in a wide range of alloy and stainless steels, including grades f304, f304l, f316, f316l.
Specification for wellhead and christmas tree equipment ansi api specification 6a nineteenth edition, july 2004 iso 10423. Welding neck flange is the flange with a neck on the side opposite the sealing face prepared with a. Bolts, tap end studs and nuts comply with api spec 6a and 17d with dimensions determined by awhem specification for stud bolts and tap end studs, tr9501. Api tr 6af2, 5th edition, april 20 technical report on capabilities of api flanges under combinations of loading phase ii the evaluation of the load carrying capacity of api 6a integral flanges is the objective of this work. The api 6a type 6b flange could also be a ring or a plate, which would form a rim at the end of a pipe, when the flange has been fastened to the pipe. Api flange dimensional data flange size working pressure diamater of bolts length of bolts api ring gasket 20,000 14116 8 8 1034 bx154 4116 2,000 1034 8 78 614 r37 3,000 1112 8 118 712 r37 5,000 1214 8 114 812 r39 10,000 12716 8 118 838 bx155. All bolt and stud lengths shown allow the use of r or rx ring gaskets in flanges with r ring grooves. 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. Torque values shown on this page apply only to api spec 6a and 16a designated flanges, for surface applications.
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