Basically the api 6a sizes have reduced bore to match standard asme pipe sizes, therefore a api 6a 7 116 flange will actually mate to an asme 6 6. The flange back face or spot faces shall be parallel to the front face within 1 and the thickness after facing shall conform to the dimensions of table d. Weight for 1 set of tap end studs with 1 nut each lbs. Api 6 a 6b flanges are of the ring joint type and are not designed for facetoface makeup. Api 6a flange elite flanges all about flanges pipeline.
Manufacturer of api 6a flanges adapter and spacer spools, 6 bx flanges, 6b flanges and weld neck flange offered by prithviraj industries, roorkee, uttarakhand. Target flanges conforming to table 44 and table 45 of api 6a are available. For ring gasket number and pcd of ring groove see below. 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. The flexitallic group is the international market leader. Flange connection an overview sciencedirect topics. 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. 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.
For flanges type 21 the outside hub diameter approximately corresponds to the outside pipe diameter, 8 holes is preferred however 4 holes may be supplied upon special request by the purchaser. Centreline of hole shall be located at midpoint of dimension c. Api 6a flange weights, ring gasket weight, bolts, studs. Pn 16 flanges din en 10921 dimensions of pn 16 flanges. Api6a 6b flanges threaded flange weld neck flange blind flange for ring gasket number and pcd of ring groove see below. Api 6a flange catalogue, check api flanges dimensions, api 6a.
Weld neck, integral, blinds, targets and test blinds pressure ratings integral, blind, target blind and test flanges. Hole diameter shall be 1,5 mm for rings rx82 through rx85, 2,4 mm for rings rx86 and rx87, and 3,o mm for rings rx88 through rx91. Api flange, api 6a flange api flange, api 6a flange. 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 issued the first specification for wellhead flanges as 6b, later. Today, api spec 6a specifies standard service temperatures of 75 f to 250 f. Api flange information, a brief history of api 6a wellhead. All api 6a valves are designed in accordance with api 6a and where applicable with asme viii div. Anello pressione di esercizio max 80 bar max working. All our flanges are manufactured from forged aisi 4 low alloy fine grain steel, providing enhanced toughness at all levels and providing vastly superior throthickness mechanical properties. Dimensions 6b flanges 5000 psi rated working pressure api. Dimensions 6b flanges 5000 psi rated working pressure api spec 6a.
Standard ed section question answer spec 6a 19th 7. Flange api tipo 6b api type 6b pressione di esercizio max 207 bar max working pressure 3000 psi 172 dn j 0, 8 db 1b ma g minim o anello r o rx l n. It is always recommended that the gasket material be softer than the mating flanges. For ring gasket ring groove dimensions see page 25 to 29 of our oilfield catalogue.
Api flange, api 6a flanges, api 605 weld neck flange. Api 6a flange weights, ring gasket weight, bolts, studs, weights. Mss6 sp55, quality standard for steel castings for valves, flanges and fittings and other piping components. Drawing api 6a flanges in acornpipe draw the rest of the spool normally. Dimensions in inches denotes ring number specified in api 6a. Api 6a6b6bx flange standard, class 2000psi, 3000psi, 5000psi, 0psi, 20000psi,data sheet including od, id, thickness, neck dimensions, bolt holes etc. Traditionally the wellhead flanges mostly mated directly to other flanges without this pesky pipe in between.
During dimensional inspection of flange, you should check for. D informative recommended flange bolt torque e informative recommended weld preparation design dimensions f informative design validation procedures g informative design and rating of equipment for use at elevated temperatures h normative design and manufacture of surface wellhead running, retrieving and. 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. Type 6bx flanges are of the ring joint type and designed with a raised face. Specification for wellhead and christmas tree equipment upstream segment ansiapi specification 6a twentieth edition, october 2010 effective date.
Api 6a 6b weld neck flanges conforming to table 36, table 37 and table 38 of api 6a 19th edition are available. Specification for wellhead and christmas tree equipment upstream segment ansi api specification 6a twentieth edition, october 2010 effective date. Dimensions 6 b flanges api 6a 5000 psi working pressure. Then when you get to the point where you need to draw the api 6a wn, select face as shown below, then hit done. 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. Materials the gasket material should be selected to suit the service conditions. Flanges for wellhead and christmas tree equipment weld neck, integral, blinds, targets and test blinds pressure ratings.
Api 6a flanges catalogue hydraulic and offshore supplies. Click on images for flanges dimensions rtj flange dimensions 1500, rtj flange dimensions pdf, rtj flange dimensions in mm, rtj flange dimensions 2500, rtj flange dimensions 900, rtj flange dimensions 600, rtj flange dimensions 0, rtj flange dimensions chart, rtj flange dimensions 300, rtj flange dimensions metric, rtj flange dimensions, ansi rtj flange dimensions, api rtj flange. All our flanges are manufactured from forged aisi 4 low alloy fine grain steel, providing enhanced toughness at all levels and providing vastly superior throthickness. Our api 6a valves are available in an extensive range of designs, materials, sizes and pressure classes and are in full conformance with api and nace specifications. Formakeuptorqueforfluoropolymer coatedb7l7boltsand2hnuts, seepage10ofthisdocument. Pn 16 flanges din en 10921 dimensions of pn 16 flanges din. Api 6a 6bx and api 6a 6b flanges welding neck flanges, blind flanges, target flanges and test flanges are fully conformed to api 6a and made of modern alloy steel via advanced manufacturing techniques.
Current api spec 6a flanges classed as 6b by api easily identified by the fact that they have ring grooves that accept r or rx ring gaskets have identical dimensions with ansi b16. Weight for 1 set of all thread stud bolts with 2 nuts each lbs. Dimensions 6bx integral flanges api 6a 2000 to 20000. Today api spec 6a and mss sp44 specify all flanges commonly used in.
For a 6bx flange to conform to the api 6a specification it must have a raised face of at least. Rx and bx gaskets provide a pressureenergized seal but are not interchangeable. Solid metal joint rings solid metal joint rings for wellhead equipment to api 6a shall comply with the requirements of api 6a. Basic catalogue 2016 basics standards, sizes, grades din en asme. Specification for wellhead and christmas tree equipment. Api 6a6b6bx flange standard china hebei haihao flange factory. The information in these pages was compiled from industry sources which texas flange and fitting supply believe to be reliable. Api specification 6a i is0 10423 table 51 continued 23 to 30 a the pressurepassage hole illustrated in the rx ring crosssection applies to rings rx82 through rx91 only. Meeting service and quality demands since 1986 texas flange provides the following series of individual pages in html and pdf format that contain flange dimensions of the standard flanges we provide. These are of ring type and are designed with raised face. Api 6a specification for wellhead and christmas tree equipment. 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. Check api 6a flanges and api 650 flange dimensions.
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. Torque values shown on this page apply only to api spec 6a and 16a designated flanges, for surface applications. Plate flanges from 14 thru 8 thick, including awwa c207,and all other special designs. Texas flange and continue reading flange dimensions. Api specification 6a gives the following reason for having a raised face, depending on tolerances, the connection makeup bolting force may react on the raised face of the flange when the. We are also a major distributor of weld fittings and flanges, studs, nuts, gaskets, seals, wellhead equipment, and rental flanges.
Because the dimensions were entered as zero, you will be prompted to enter the dimension for the flange. We continually strive to improve designs and manufacturing capabilities to meet the requirements of the canadian oilfield, while maintaining our commitment to quality. Api 6a flange elite flanges all about flanges pipeline flanges. Note the flange back face may be fully machined or spotfaced at the bolt holes. Nominal pipe sizes in brackets apply to class rating 3000 only. Api 6a 6bx flange and api 6a 6b flanges pipe fittings. 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. Api 6a6b6bx flange standard china hebei haihao flange. The pt ratings from en 10921 apply only for flange types 05, 11, 12, and 21 having nominal sizes up to and including dn. Api 6a flanges adapter and spacer spools manufacturer. 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. Page 162, table 63 continued, line r 57, change the width of flat of octagonal ring c value from. Nominal pipe sizes marked apply to class rating 2000 only.
This flange has a counter bore filled with lead as illustrated below. Api 6fa scv thru conduit slab gate bidirectional pressure assisted seats for high pressure sealing. Api 6a type 6bx 15000psi blind welding neck flange. Api flange information, a brief history of api 6a wellhead flanges. Dimensions 6 bx integral flanges api 6a 2000 to 20000 psi working pressure.