En 10921 flanges, weld neck flanges, threaded flanges. The pt ratings from en 10921 apply only for flange types 05, 11, 12, and 21 having nominal sizes up to and including dn. Slipon flanges are availble as type 12, pn 10 an pn 16 acc. Bs4504 flanges were generally the same as the old din 2501 specification, but the new en 1092 standard covers a wider range. En 10922, flange bs en 10922, en 10922 pn16 flange. Type 21 are modelled in both styles i and ii without a hole through. Although the bs4504 or the british standard is now considered to be obsolete it has now been replaced by the astm a350 lf2 en 1092 1 threaded flange. En 10921 flange standard china hebei haihao flange factory. Ssen10921 flanges and their joints circular flanges.
En 10921 pn6 rfwn flange integral flanges such as on valves has the same. Cf flanges and components the cf flange connection consists of two geometrically identical flanges with. Generally, the en 1092 is available in forms like en 1092 wnrf, en 1092 blrf, en 1092 sorf, en 1092 swrf, en 1092 lap joint, en 1092 threaded, en 1092 reducing, en 1092 spectacle, etc. The inconel en 10921 flat flange is one of most common fittings used throughout the world. The pt ratings from en 10921 apply only for flange types 05, 11, 12, and 21 having nominal sizes up to and including dn 600. This european standard specifies the flange types and their facings, dimensions, tolerances, threading, bolt sizes, flange jointing face surface finish, marking, materials, pressure temperature ratings and approximate flange masses. Din en 10921 steel flange, flange facing types and dimensional table. I am not sure where bolt length is discussed, but it is not in en 10921.
Flanges and their joints circular flanges for pipes, valves, fittings and accessories, pn designated part 1. Types 02 and 04 are modelled with a flat face only. 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. Dimensions n1 and n2 are measured at the intersection of the hub draft angle and the back face of the flange. All bsi british standards available online in electronic and print formats. The type of flange to be used for a piping application depends, mainly, on the required strength for the flanged joint. En 1092 1 weld neck flangesraised face, threaded flanges, loose flanges, plate flanges, blind flanges suppliers. En 10921 type 01 plate flange jinan hyupshin flanges co. Flanges and their joints circular flanges for pipes, valves, fittings and accessories, pn designated steel flanges. En 1092 1 reducing flange, en 1092 1 stainless steel sus 304 forged flanges, carbon steel en 1092 1 blind flanges, alloy 20 en 1092 1 spectacle blind flange, monel en 1092 1 welding neck flange, en 1092 1 ring type joint flange, en 1092 1 socket weld flanges leading stockholders in mumbai india. Homepagebs standards23 fluid systems and components for general use23. We are one of the leading manufacturers, supplier and exporters of high quality en 1092 1 flanges in mumbai, india. The pt rating from en 1092 1 apply only for flange type 05, 11, 12, and 21 having nominal sizes up to and including dn 600.
Type are modelled with a hole through at the minor thread diameter. The bolt diameter and number are shown in the various tables, as is the heightthickness of the flanges, but nothing specific on bolt length. Facing types methode of machining radius of tool nose mm ra m rz m min. En 10921 bolt length cen ecn eu standards code issues.
Circular flanges for pipes, valves, fittings and accessories, pn designated is classified in these ics categories. The inconel en 1092 1 flat flange is one of most common fittings used throughout the world. I am not sure where bolt length is discussed, but it is not in en 1092 1. For d1 dimensions see document flange facing dimensions en 1092 1. For the purpose of this european standard, flanges include also lapped ends and collars. Now all the weld neck flange are refer to en 10921 type 11,below is the din weld neck flange vs en 10921 type 11 flange. The pt rating of all other flanges shall be agreed between the manufacturer and the purchaser. Fittings types note notes en10921 flange circolari per tubazioni, valvole, raccordi e accessori, designate pn circular flanges for pipes, velves, fittings and accessories, pn designaled x5crni1810 x2crni189 x5crnimo17122 x2crnimo17122 p355nh s235jr p245gh p280gh 304 304l 316 316l 1. Circular flanges for pipes, valves, fittings and accessories, pn designated. En 10921 flanges, en 10921 pn40, en 10921 type b raised face. En 10921 weld neck flangesraised face, threaded flanges, loose flanges, plate flanges, blind flanges suppliers. Flange fittings with the appropriate collar flanges, the clamp flange can be connected to various fixed bolted flange systems isof, din en 10921, etc.
En 10921 flanges pn6pn40 manufacturer, en 10921 flanges. This european standard specifies requirements for circular steel flanges in pn designations pn 2,5 to pn 400 and nominal sizes from dn 10 to dn 4000. Consequently, whilst the mating dimensions, the flange and facing types and designations are compatible with those given in 150 70051, t is important to take account of the following differences which exist in en 10921. Flanges are used, alternatively to welded connections, to facilitate maintenance operations a flanged joint can be dismantled quickly and conveniently. Din flange the german institute for standardization, is a private organization providing standardization services in germany. Standard flange height of raised face f tolerance din en 10921. En 10921 flanges, en 10921 pn40, en 10921 type b raised. Although the bs4504 or the british standard is now considered to be obsolete it has now been replaced by the astm a350 lf2 en 10921 threaded flange. En 10922, flange bs en 10922, en 10922 pn16 flange dimensions. 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. En10921steelflanges blind flanges dimensions according to standard en 10921 pn2.
Orifice flanges are not covered by this standard, but all ansi flange tolerances, where applicable, apply to all coastal orifice flange diminisions except the bore. We are one of the leading manufacturers, supplier and exporters of high quality en 10921 flanges in mumbai, india. Flange drillings in en10921 are generally the same as bs4504 and din 2501 but en10921 covers a wider range. Dimensions in mm for flanges type 21 the outside hub diameter approximately corresponds to the outside pipe diameter, note. En 10921 flanges, weld neck flanges, threaded flanges, blind. They confirm to din standards, but have been withdrawn again from the din standards. Flanges, elbows din en and buttweld fittings stainless steel. Although at our factory, we manufacture specialized bs en 10922 so rf flange as per drawings submitted by the buyer during the time of order. In din en 10921, en standard sheets are shown in the respective flange types and respective nominal pressure. En 10921 flange dimensions chart, ansi en 10921 flange dimensions pdf, en 10921 flanges exporter in india, en 10921 cs long weld neck flanges exporter in mumbai, what is pressure rating, uns s30400 en 10921 flange suppliers in india. Pn 16 flanges din en 10921 flangesforgingsflangeforging. This european standard specifies the flange types and their facings, dimensions, tolerances, threading, bolt sizes, flange jointing face surface finish, marking.
En 10921 is for steel flanges, en 10922 is for iron flanges, en 10923 is for alloy flanges. For d1 dimensions see document flange facing dimensions en 10921. The types of flanges for piping explained projectmaterials. En 1092 evolved from din 2501 which became part of iso 7005, then en 1092 was created as the standard for din based flanges. En 10921 flange dimensions, en 10921 type 35 flange standard. Din 2633 pn 16 weld neck flanges,din 2633 pn 16 flanges.
Size range dn as in din en 10921 2512 tongue and groove. Verification by means of limit gauges 50 887, plain washers for. En 10921 flanges manufacturer, exporter in mumbai, india. Dimensions n1, n2 and n3 are measured at the intersection of the hub draft angle and the back face of the flange. Threaded flange threaded flanges are joined to pipes by screwing the pipe which has a male thread, generally npt per asme b1. Dimensions, tolerances and designation 150 72, pipe threads where pressure tight joints are made on the threads part 2. Circular flanges for pipes, valves, fittings and accessories, classdesignated.
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