For 10 years prior to the change, the standard included both and was listed as ansiasme b16. Reducing flanges are available in all types and pressures. Bolt circle diameters are 18 inch larger than bolt diameter. Each kit contains fasteners, nuts, washers and lock washers of the same material as your flange. Flat face flanges may be provided at full thickness, c, or with raised face removed the latter is nonstandard. Weld neck flange dimensions are covered in asme b16. Valve identification specification valves are supplied with flanges to ansi b16. Cast iron flanges stud reference chart the number, diameter and length of studs for cast iron flanges class 125 and 250.
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. All dimensions are in inches these flanges will be furnished with a 116 raised face unless otherwise specified. Api 607bs 6755 3piece trunnion ball valves api 6a basic design. 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. Simply turn to the pressure class required and find the dimensional standard of your choice. 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. Common dimensions bore length thru hub to be specified by purchaser.
Flange face finishmost used surfacesstock finish, spiral finish, concentirc serrated, smooth finish. Dimensions in inches weld neck flanges and stud bolts asme b16. An investigation was made into the factors determining stiffness of flanges and flange hubs. Tables below provide flange dimensions with 7 mm raised face which is additional to the flange. Cast iron flanges stud reference chart the number, diameter and length of. Except for diameter of bolts and flange bolt holes, combining values from the two systems constitutes.
Csa standard can3z245 12m96 covers the manufacture, dimensions, tolerances and material requirements for pipe line flanges. Flanged valves 5 inch to 24 inch face end connectors operation fig. Mar 15, 20 i rarely use sheet metal commands but need to learn more about them. To order a reducing flange, state the smaller size first, then the.
Blind flange click any image above to enlarge it and lock it in place, then scroll to the bottom table for dimensions ansi b16. Weld neck or welding neck flange dimensions, tolerances and required stud bolts, asme b16. Mss sp44 also covers nps 12 to nps 24 flanges which are equivalent to asme b16. All dimensions except thickness of flange c sizes 1 are the same as a weld neck. Nominal pipe size nps inches outside diameter of flange incheso. Mss sp44 is the only source for the nps 22 flange dimensions above. Flange dimensions are determined by the pipe size and the. Attached pipe wall thickness, welding neck flanges. The two unit system shall be used respectively and exclusively.
Flanges are standardized according publications from organizations like asme, mss, api and others. The following mss, api and awwa standards are written to supplement b16. Nominal pipe size outside diameter o thickness t raised face diameter r. Coastal flange stocks import and domestic ansi b16. The steel flange harmonization specified in the previous edition did not achieve the anticipated market acceptance. Nov 12, 2017 flange bolting dimensional recommendations. We work with manufacturers in the us and globally to insure the highest quality products and the fastest delivery times. Hayward pipe distributes industrial and commercial flanges in all the materials listed below. 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. 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. B industry standard and awwa flanges weld neck, slipon, blind. 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. 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. Moreover, there is no simple way to catalog the huge array of flanges which are available under dmics stepper flange program.
Class 150 to class 900 the following section is in order by pressure class due to the overlapping dimensions of some standards. 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. How to get two base flanges to merge solidworks forums. Dimensions in inches of weld neck flanges and stud bolts asme. Weld neck flange dimensions class 150 to class 2500. Flange dimensions are determined by the pipe size and the pressure class required for the application. 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.
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. It covers forged steel flanges, sizes nps 12 dn 15 through nps 24 dn 600. Moreover, there is no simple way to catalog the huge array of flanges which are. Normally i would simply use extrusions but i would like to get a flat pattern out of this. Approximate weight is based on a orifice flange union which is a set of. Weights are based on manufacturers data and are approximate.
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