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EN10253-4 Concentric reducers – free 3D CAD files, info & dimensions

A concentric reducer is a type of fitting that is symmetrical, with a cone-shaped transition from one diameter to another, where the centerline of both pipes remains in the same axis.

The EN10253-4 standard is a European standard that specifies the design and dimensions of butt-welding fittings for use with metal tubes and pipes in the petroleum, petrochemical, and allied industries.

Dimensions & free CAD files

Diameter 1 (D1)Diameter 2 (D2)Thickness (t)Download 3D CAD fileLength (L)
17,213,72https://a360.co/3IdO73H11
21,313,72https://a360.co/3ob5KJz23
21,317,22https://a360.co/3IfSyLF12
26,913,72https://a360.co/3ElJ1jF40
26,917,22https://a360.co/31oMWxP29
26,921,32https://a360.co/3pCW8qL17
33,713,72https://a360.co/3lvGdZR60
33,717,22https://a360.co/31nieom50
33,721,32https://a360.co/3G8oxeU37
33,726,92https://a360.co/31phP5620
38,125,41,5https://a360.co/3lppAyP39
42,413,72https://a360.co/3xLweEy86
42,417,22https://a360.co/3xImWJG76
42,421,32https://a360.co/3IdPeAp63
42,426,92https://a360.co/3dbLpO146
42,433,72https://a360.co/3degws826
44,5242https://a360.co/3Ejau5p60
44,5282https://a360.co/3Ecsw9w45
44,5342https://a360.co/3Ie2G7t30
48,317,22https://a360.co/3daP5iS93
48,321,32https://a360.co/3EiKFT481
48,326,92https://a360.co/3Ew3MJL64
48,333,72https://a360.co/3IfU5RV44
48,342,42https://a360.co/32MpDyh18
50,825,41,5https://a360.co/3Dg32XD78
50,838,11,5https://a360.co/3ofCWzR39
54242https://a360.co/3lrSmiq90
54282https://a360.co/3G6DFct75
54342https://a360.co/31dJTsx60
54442https://a360.co/2ZP5Ptc30
60,321,32https://a360.co/3DaxxhH117
60,326,92https://a360.co/3xO4JKU100
60,333,72https://a360.co/3DiwpbL80
60,342,42https://a360.co/3GdbsRz54
60,348,32https://a360.co/3IhvnRc36
60,348,33https://a360.co/3G7ZLLL36
63,525,41,5https://a360.co/3DijFlg114
63,538,11,5https://a360.co/3DfT7RG75
63,550,81,5https://a360.co/3oewXek36
64542https://a360.co/31e1Eba30
69342https://a360.co/3Ecv1IW105
69442https://a360.co/3EbOOs175
69542https://a360.co/3G8VrvE45
76,126,92https://a360.co/3DfTITq148
76,133,72https://a360.co/3xLyYln127
76,142,42https://a360.co/3lsM3uY101
76,142,43https://a360.co/31dvJYl101
76,148,32https://a360.co/3Eg8gnx83
76,148,33https://a360.co/3lpUR5283
76,125,41,5https://a360.co/3of04OR153
76,138,11,5https://a360.co/3pmsTbf114
76,150,81,5https://a360.co/3EkaQsw75
76,163,51,5https://a360.co/3loX80839
76,160,32https://a360.co/3G1RYPw47
76,160,33https://a360.co/3rqxewU47
8444,52https://a360.co/32Uh8Bt120
84542https://a360.co/3pkk0z390
84642https://a360.co/3pemjU860
84692https://a360.co/3xPCBXM45
84742https://a360.co/3EwaZcN30
88,933,72https://a360.co/3GnHv1h166
88,942,42https://a360.co/3dipiW1139
88,948,32https://a360.co/3DabCHm122
88,948,33https://a360.co/3xNsAKk122
88,960,32https://a360.co/3xObhcs86
88,960,33https://a360.co/3rut9aU86
88,976,12https://a360.co/3rseoW238
88,976,13https://a360.co/3dhc6kc38
101,638,11,5https://a360.co/3ofkuHl198
101,650,81,5https://a360.co/3IfDEoE159
101,663,51,5https://a360.co/3EgzGJL123
101,676,11,5https://a360.co/3lsCBYI84
104542https://a360.co/3ElSbg3150
104642https://a360.co/3G6TeRt120
104692https://a360.co/3pntgST105
104742https://a360.co/3Dd2r8Z90
104842https://a360.co/3DkSgPD60
114,326,92https://a360.co/3ofVBeB262
114,333,72https://a360.co/2ZK5yHM242
114,342,42https://a360.co/3rqaw89216
114,348,32https://a360.co/3xLaCbu198
114,360,32https://a360.co/3EkfFlC162
114,360,33https://a360.co/3ofUf3K162
114,376,12https://a360.co/3lsFuZB115
114,376,13https://a360.co/3pkNFrR115
114,388,92https://a360.co/31nsEV076
114,388,93https://a360.co/3G5jUCa76
129542https://a360.co/32XuwoB225
129692https://a360.co/3pjkOEu180
12976,12https://a360.co/3rtotSB159
129842https://a360.co/3IdQrIg135
129101,62https://a360.co/3EgQZuz82
1291042https://a360.co/3xOdvZm75
131863https://a360.co/3oeWvrR135
1311063https://a360.co/3rrSa6L75
139,760,32https://a360.co/3lsETqI238
139,760,33https://a360.co/3xLHgts238
139,776,12https://a360.co/31lJJyW191
139,776,13https://a360.co/3odOTpp191
139,788,92https://a360.co/3I9vCxD152
139,788,93https://a360.co/3ocVMYg152
139,7114,32https://a360.co/31mUJvM76
139,7114,33https://a360.co/3luWWMR76
154542https://a360.co/3ry8EKu300
154692https://a360.co/3ofYfRz255
154702https://a360.co/3deZhXT255
154842https://a360.co/3Icth4W210
154101,62https://a360.co/3DaeTGE157
1541042https://a360.co/3DeqcNZ150
1541292https://a360.co/3xNsp1Z75
156863https://a360.co/3ofWPXu210
1561063https://a360.co/32Uo3ur150
1561313https://a360.co/3d9XcfJ75
168,360,32https://a360.co/31ksbTF324
168,376,12https://a360.co/3ruPZiQ277
168,376,13https://a360.co/3DfPV8I277
168,388,92https://a360.co/3Idw8un238
168,388,93https://a360.co/3pf2XhQ238
168,3114,32https://a360.co/3EobN3m162
168,3114,33https://a360.co/3DfQdMQ162
168,3139,72https://a360.co/3IdtFA986
168,3139,73https://a360.co/3G49lze86
204842https://a360.co/3ruY4nM360
2041042https://a360.co/3IfHzBS300
2041292https://a360.co/3oe5bP3225
2041542https://a360.co/3EgW06l150
2061063https://a360.co/3xLdTri300
2061313https://a360.co/3G6KElU225
2061563https://a360.co/3ofY0WU45
219,188,92https://a360.co/3Iea5Ub391
219,188,93https://a360.co/3rsPt4N391
219,1114,32https://a360.co/3xZpm6Z314
219,1114,33https://a360.co/3EgKcAN314
219,1139,72https://a360.co/3xNtHtR238
219,1139,73https://a360.co/3EgEAq9238
219,1168,32https://a360.co/31qvVCY152
219,1168,33https://a360.co/3oekaZq152
2541042https://a360.co/31qqu7n450
2541292https://a360.co/3deKtZ8375
2541542https://a360.co/3EjnCrd300
2542042https://a360.co/3dh2p5i150
2561063https://a360.co/2ZKd45u450
2561313https://a360.co/3Dn67oY375
2561563https://a360.co/3onXXZf300
2562063https://a360.co/32T8CTj150
273114,32https://a360.co/3GdlOAV476
273114,33https://a360.co/3dcXWAO476
273139,72https://a360.co/31mXqNU400
273139,73https://a360.co/3Ejw8Xc400
273168,32https://a360.co/3ruybnO314
273168,33https://a360.co/3dbWP4w314
273219,12https://a360.co/3oe6Unv162
273219,13https://a360.co/3EjoLPx162
3041042https://a360.co/3xU31HS600
3041292https://a360.co/3odWLr0525
3041542https://a360.co/3xOeY1r450
3042042https://a360.co/2ZL21Jk300
3042542https://a360.co/31lIxMe150
3061063https://a360.co/3rv07Z0600
3061563https://a360.co/3G4lg03450
3062063https://a360.co/3rs8aWa300
3062563https://a360.co/3ogBrkK150
323,9114,32https://a360.co/2ZKtQkX629
323,9114,33https://a360.co/3Ejstsv629
323,9139,72https://a360.co/3EwjzZ3553
323,9139,73https://a360.co/2ZORoW0553
323,9168,32https://a360.co/31l2vq0467
323,9168,33https://a360.co/3ohBInK467
323,9219,12https://a360.co/3pnM58y314
323,9219,13https://a360.co/3deNDMu314
323,92732https://a360.co/3ElZYdN153
323,92733https://a360.co/3deHpMS153
3541542https://a360.co/3og3iS1600
3542042https://a360.co/3DiyaFI450
3542542https://a360.co/3pnMec6300
3543042https://a360.co/3xIEqFO150
355,6168,33https://a360.co/3IcxPZ4562
355,6219,13https://a360.co/3dh60Ak410
355,62733https://a360.co/3poXdSV248
355,6323,93https://a360.co/32UsvJF95
3561563https://a360.co/3pojG2n600
3562063https://a360.co/3G98vRI450
356219,13https://a360.co/3lt56FM410
3562563https://a360.co/3Ib9Idh300
3563063https://a360.co/3xOiiJX150
4042042https://a360.co/3xSXQrx600
4042542https://a360.co/3Dbvgm9450
4043042https://a360.co/3rtw9Ep300
4043542https://a360.co/3dc0IGE150
4062063https://a360.co/3G242Ai600
406,4219,13https://a360.co/3ruD7ZZ562
4062563https://a360.co/3lvWP3F450
406,42733https://a360.co/3ruuHla400
4063063https://a360.co/3obpLjb300
406,4323,93https://a360.co/3ofuKPR248
4063563https://a360.co/3lvp82m150
4562563https://a360.co/3IhJg1M600
4563063https://a360.co/3GnQAan450
4563563https://a360.co/3xJNJVO300
4564063https://a360.co/3Ekc6fj150
457,2219,13https://a360.co/2ZOTO72714
457,22733https://a360.co/3G8NM0o553
457,2323,93https://a360.co/3lt0IGN400
457,2355,63https://a360.co/3pjxCuu305
457,2406,43https://a360.co/3Ekp4JW152
5062563https://a360.co/3xLOSfz750
5063063https://a360.co/3DhBe5c600
5063563https://a360.co/3oi5BUV450
5064063https://a360.co/3dcgXmR300
5064563https://a360.co/3DeFG4I150
5082733https://a360.co/3IdYrZG705
508323,93https://a360.co/3EkcQ45552
508355,63https://a360.co/31nCmqq456
508406,43https://a360.co/31kzvi7305
508457,23https://a360.co/3EgkxIw152
6063063https://a360.co/3xSZFVp900
6063563https://a360.co/3EkMejE750
6064063https://a360.co/31qwuwV600
6064563https://a360.co/3DhBVeO450
6065063https://a360.co/3df7E5L300
609,6323,93https://a360.co/3EiA1fg857
609,6355,63https://a360.co/3Eh94Zn762
609,6406,43https://a360.co/3IptxOf610
609,6457,23https://a360.co/3odXY1t457
609,65083https://a360.co/3lv4qPX305