An investigation was made into the factors determining stiffness of flanges and flange hubs. Stepsize flange requirement flange series dmic stepper flange standard side side one companion side side two almost every dmic stepper flange order solves a new, different problem. Weights are based on manufacturers data and are approximate. To order a reducing flange, state the smaller size first, then the. Values in inches are converted to values in millimeters using the factor 2. Flanged valves 5 inch to 24 inch face end connectors operation fig. The steel flange harmonization specified in the previous edition did not achieve the anticipated market acceptance. Weld neck flange dimensions are covered in asme b16. Flange dimensions are determined by the pipe size and the. Valve identification specification valves are supplied with flanges to ansi b16. October 23, the standard was published as ansi b16. Mss sp44 is the only source for the nps 22 flange dimensions above. Notes dimension b corresponds to the pipe inside diameter.
Mar 15, 20 i rarely use sheet metal commands but need to learn more about them. Flange face finishmost used surfacesstock finish, spiral finish, concentirc serrated, smooth finish. Approximate weight is based on a orifice flange union which is a set of. Coastal flange stocks import and domestic ansi b16. This part of iso 7005 makes normative reference to a family of two distinct steel flange series, each of which has sectorial relevance in noteworthy global marketplaces.
The mm values are rounded off to the nearest 0 or 5 in the asme standard. Light wall thicknesses are identical to stainless steel schedule 10s in sizes through 12. Nominal pipe size nps inches outside diameter of flange incheso. Reducing flanges are available in all types and pressures. Mss sp44 also covers nps 12 to nps 24 flanges which are equivalent to asme b16. How to get two base flanges to merge solidworks forums. Simply turn to the pressure class required and find the dimensional standard of your choice. For 10 years prior to the change, the standard included both and was listed as ansiasme b16. Flange dimension charts for class 150, class 300, class 600, class 900, class 1500 and class 2500 free.
Blind flange click any image above to enlarge it and lock it in place, then scroll to the bottom table for dimensions ansi b16. Moreover, there is no simple way to catalog the huge array of flanges which are. I rarely use sheet metal commands but need to learn more about them. Except for diameter of bolts and flange bolt holes, combining values from the two systems constitutes. Weld neck or welding neck flange dimensions, tolerances and required stud bolts, asme b16. All dimensions are in inches these flanges will be furnished with a 116 raised face unless otherwise specified. They also provide flange bolt circle diameters, also known as pitch. Bolt circle diameters are 18 inch larger than bolt diameter. To order a reducing flange, state the smaller size first, then the outside diameter of the larger size.
The two unit system shall be used respectively and exclusively. Hayward pipe distributes industrial and commercial flanges in all the materials listed below. The pressure rating will also determine the dimensions of the flange full details can be found in the relevant specification. All dimensions are provided in both mm and inch units. Dimensions in inches weld neck flanges and stud bolts asme b16. This part of iso 6162 gives general and dimensional specifications for flanged heads, split flange clamps fcs and fcsm, onepiece flange clamps fc and fcm, ports and mounting surfaces applicable to fourscrew, split and onepiece flange clamp type tube connectors and hose fittings for use at pressures of 3, 5 mpa 35 bar 1 to 35 mpa 350 bar. Texas flange product catalog illinois office 8008263801 6306270642 fax 6306270515 local phone houston office 8776108924 8776108893 fax 2814848325 local tel 2814848730 local fax information in this catalog was compiled from industry sources. Nov 12, 2017 flange bolting dimensional recommendations. It covers forged steel flanges, sizes nps 12 dn 15 through nps 24 dn 600. All dimensions except thickness of flange c sizes 1 are the same as a weld neck. I am trying to build a part by creating two base flanges and merging together. Dimensions in inches of weld neck flanges and stud bolts asme. Class 150 to class 900 the following section is in order by pressure class due to the overlapping dimensions of some standards.
Common dimensions bore length thru hub to be specified by purchaser. Attached pipe wall thickness, welding neck flanges. Cast iron flanges stud reference chart the number, diameter and length of. Cast iron flanges stud reference chart the number, diameter and length of studs for cast iron flanges class 125 and 250. Each kit contains fasteners, nuts, washers and lock washers of the same material as your flange. Api 607bs 6755 3piece trunnion ball valves api 6a basic design. This part of iso 6162 gives general and dimensional specifications for flanged heads, split flange clamps fcs and fcsm, onepiece flange clamps fc and fcm, ports and mounting surfaces applicable to fourscrew, split and onepiece flange clamp type tube connectors and hose fittings for use at pressures of 3,5 mpa 35 bar 1 to 35 mpa 350 bar. Weld neck flange dimensions class 150 to class 2500. This can be attributed firstly to the fact that this part of iso 7005 has not, prior to this revision, been updated and, secondly, that this part of iso 7005 lacked normative requirements for many materials and their corresponding pressuretemperature ratings. Tables below provide flange dimensions with 7 mm raised face which is additional to the flange. Flanges are standardized according publications from organizations like asme, mss, api and others. Normally i would simply use extrusions but i would like to get a flat pattern out of this.
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. Nominal pipe size outside diameter o thickness t raised face diameter r. Experience in using the standard showed the need for hub dimensions of companion flanges and for other changes, including rerating of 250lb and 1,350lb flanges and development of flanged fittings with integral bases. Moreover, there is no simple way to catalog the huge array of flanges which are available under dmics stepper flange program. B industry standard and awwa flanges weld neck, slipon, blind. Flat face flanges may be provided at full thickness, c, or with raised face removed the latter is nonstandard. The following mss, api and awwa standards are written to supplement b16. Flange dimensions are determined by the pipe size and the pressure class required for the application. Weld neck flanges and stud bolts dimensions asme b16. Blind flange dimensions, tolerances and required stud bolts, asme b16.