DIN Flanges | DIN 2527-2638 | PN6-PN100

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DIN flanges are standardized pipe flanges used across European and international piping to make strong, leak-resistant connections between pipes, valves, pumps, and other equipment. Built to DIN and related EN standards, they come in several designs, including welding neck, slip-on, blind, loose, and threaded flanges, which covers a wide spread of industrial work. You will find them in water treatment plants, chemical processing units, oil and gas systems, power stations, food and beverage facilities, and general mechanical piping, anywhere dimensional consistency and a dependable seal matter. PM Industries manufactures, supplies, and stocks DIN flanges in a full range of types, sizes, and PN ratings.

The standardized drilling pattern is a big part of the appeal. With accurate dimensions across the board, DIN flanges interchange easily, simplify maintenance, and go in without fuss. They are made in PN pressure classes such as PN6, PN10, PN16, PN25, PN40, and higher, so engineers can match the flange to the working pressure of the line. We produce them in carbon steel, stainless steel, alloy steel, and other special grades, picked to suit the corrosion resistance, temperature, and service the job demands. The design supports solid gasket seating and strong bolting, which keeps leaks down and lifts system safety over the long run.

DIN flanges also earn their place through flexibility. The right standard and material grade lets them serve both low-pressure and high-pressure systems. Getting the flange type, face finish, pressure rating, and material right is what keeps the flange compatible with the piping and delivers long service life, and our team will help you confirm those before you order.

For industrial piping that needs accuracy, strength, and standardized performance, DIN flanges are a dependable, widely accepted choice. PM Industries holds stock ready to ship, with certification and test documentation on every order. Tell us your flange type, size, PN class, face, and material, and we will quote it.

Specification DIN Flange

StandardsANSI/ASME B16.5, B16.48, ANSI Flanges, GOST Flanges, DIN Flanges, EN-1092, B16.47 Series A & B, ASME Flanges, EN Flanges, AWWA Flanges, BS Flanges.
JIS Standard 5K, 10 K, 16 K 20 K, 30 K, 40 K, 63 K
DIN FLANGESDIN 2527, 2627, 2631, 2656, 2576, 2673, 2629, 2628, 2566, 2641, 2637, 2655, 2634, 2636, 2632, 2633, 2638, 2642, 2573, 2635.
Pressure RatingClass 150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS
TypesThreaded, Plate, Screwed, Forged.
Supporting materialGasket, Ring Joint, Flange Bolts
Size range1/2" (15 NB) to 48" (1200NB) DN10~DN5000
Production techniqueForged, machined and Heat treated
Available Flange TypeWeld Neck Flanges, RTJ Flanges, Slip On Flanges, Spectacle Blind Flanges, Flanges Gaskets, Square Flanges, Standard Insert Flanges, High Hub Blinds Flanges, Flat Flanges, forged flanges, Weldo / Nipo Flanges, Jacket Insert Flanges, Tongue groove Flanges, Blind Flanges, Socket Weld Flanges, Large diameter Flanges, Long Weld Neck Flanges, Spacer Blinds, SWRF Flanges, SORF Flanges, Angle Face Rings Flanges, Spades Ring Spacers Flanges, WNRF Flanges, Screwed Flanges, Insert Flanges, flanges bolts, cf flange, Lap Joint Flanges, ASME B16.36 Orifice Flanges, Plate Flange, Expander Flanges, Ring Type Joint Flanges, Loose Flanges, Reducing Flanges, puddle flange, Threaded Flanges, blank flange, vacuum flange.
Connect Type/ Flange Face TypeRing Type Joint (RTJ), Flat Face (FF), Tongue & Groove, Small Male-Female (SMF), Lap-Joint Face (LJF), Raised Face (RF), Large Male-Female (LMF), Small Tongue.
Custom designAs per your drawing
TestDirect-reading Spectrograph, X-ray detector, UItrasonic flaw detector, Magnetic particle detector, Hydrostatic testing machine.
OriginIndian / USA / Korean / West Europe / Japan
Pressure ClassPN 6 TO PN 100
ThicknessNormal Pipe Size ≤ 18
Bore DiameterNormal Pipe ≤ 10
High TemperatureAbove 200°C (400°F) For Class 150 Or Above 400°C (750°F)
Low TemperatureAbove -29 Degree C (−20°F)
Coating/Surface Treatment:Zinc Plated, Anti-rust Paint, Oil Black Paint, Yellow Transparent, Cold and Hot Dip Galvanized.
European/African/Russian Standard FlangesAvailable
Gaskets TypesFull Face, Metallic Ring, Flat Ring Gasket
Marking Standard
Name of Manufacturer
Schedule
Type of Flange Facing
Pressure Class
Nominal Pipe Size, etc
Test Certificates
EN 10204/3.1B, NACE MR0103, NACE MR0175
Raw Materials Certificate
100% Radiography Test Report
Third Party Inspection Report, etc

Flange Type Available


Din Flanges Pressure Temperature Rating

Flange Nominal DiameterPressure Rating (PN)
**Nominal BSP Pipe SizePN6PN10PN16PN25PN40
DN 107590909090O.D.
3/8″5060606060PCD (bolt circle)
4 x 114 x 144 x 144 x 144 x 14# of holes x diam. of holes
DN 158095959595O.D.
1/2″5565656565PCD (bolt circle)
4 x 114 x 144 x 144 x 144 x 14# of holes x diam. of holes
DN 2090105105105105O.D.
3/4″6575757575PCD (bolt circle)
4 x 114 x 144 x 144 x 144 x 14# of holes x diam. of holes
DN 25100115115115115O.D.
1″7585858585PCD (bolt circle)
4 x 114 x 144 x 144 x 144 x 14# of holes x diam. of holes
DN 32120140140140140O.D.
1 1/4″90100100100100PCD (bolt circle)
4 x 144 x 184 x 184 x 184 x 18# of holes x diam. of holes
DN 40130150150150150O.D.
1 1/2″100110110110110PCD (bolt circle)
4 x 144 x 184 x 184 x 184 x 18# of holes x diam. of holes
DN 50140165165165165O.D.
2″110125125125125PCD (bolt circle)
4 x 144 x 184 x 184 x 184 x 18# of holes x diam. of holes
DN 65160185185185185O.D.
2 1/2″130145145145145PCD (bolt circle)
4 x 144 x 184 x 188 x 188 x 18# of holes x diam. of holes
DN 80190200200200200O.D.
3″150160160160160PCD (bolt circle)
4 x 188 x 188 x 188 x 188 x 18# of holes x diam. of holes
DN 100210220220235235O.D.
4″170180180190190PCD (bolt circle)
4 x 188 x 188 x 188 x 228 x 22# of holes x diam. of holes
DN 125240250250270270O.D.
5″200210210220220PCD (bolt circle)
8 x 188 x 188 x 188 x 268 x 26# of holes x diam. of holes
DN 150265285285300300O.D.
6″225240240250250PCD (bolt circle)
8 x 188 x 228 x 228 x 268 x 26# of holes x diam. of holes
DN 175315315330350O.D.
7″270270280295PCD (bolt circle)
8 x 228 x 2212 x 2612 x 30# of holes x diam. of holes
DN 200320340340360375O.D.
8″280295295310320PCD (bolt circle)
8 x 188 x 2212 x 2212 x 2612 x 30# of holes x diam. of holes
DN 250375395405425450O.D.
10″335350355370385PCD (bolt circle)
12 x 1812 x 2212 x 2612 x 3012 x 33# of holes x diam. of holes
DN 300440445460485515O.D.
12″395400410430450PCD (bolt circle)
12 x 2212 x 2212 x 2616 x 3016 x 33# of holes x diam. of holes
DN 350490505520555580O.D.
14″445460470490510PCD (bolt circle)
12 x 2216 x 2216 x 2616 x 3316 x 36# of holes x diam. of holes
DN 400540565580620660O.D.
16″495515525550585PCD (bolt circle)
16 x 2216 x 2616 x 3016 x 3616 x 39# of holes x diam. of holes
DN 500645670715730755O.D.
20″600620650660670PCD (bolt circle)
20 x 2220 x 2620 x 3320 x 3620 x 42# of holes x diam. of holes
DN 600755780840845O.D.
24″705725770770PCD (bolt circle)
20 x 2420 x 2720 x 3320 x 36# of holes x diam. of holes

Din 2527 Flange Dimensions

Rated
Diameter
FlangeScrewsWeight
(7,85 Kg/dm3)
DbkNumberThreadd2Shape B
Kg
158012554M 10110.44
209014650.66
2510014750.83
321201490M 12141.18
40130141001.39
50140141101.63
65160141302.15
8019016150M 16183.44
100210161704.22
1252401820086.11
150265182257.51
2003202028012.31
250375223351218.54
30044022395M 202225.46
3504902244531.77
400540224951638.49
500645246002060.10

Din 2527 Pn10 Blind Flange Dimension Chart

Rated
Diameter
FlangeScrewsWeight
(7,85 Kg/dm3)
DbkNumberThreadd2Shape B
Kg
159514654M 12140,72
2010516751,01
2511516851,23
3214016100M 16181,8
40150161102,09
50165181252,88
65185181453,66
80200201604,77
1002202018085,65
125250222108,42
15028522240M 202210,4
2003402429516,5
250395263501224
3004452640030,9
350505264601640,6
40056526515M 242649,4
500670286202075

Din 2527 Pn16 Flange Dimensions

Rated
Diameter
FlangeScrewsWeight
(7,85 Kg/dm3)
DbkNumberThreadd2Shape B
Kg
159514654M 12140,72
2010516751,01
2511516851,23
3214016100M 16181,8
40150161102,09
50165181252,88
65185181453,66
802002016084,77
100220201805,65
125250222108,42
15028522240M 202210,4
200340242951216,1
25040526355M 242624,9
3004602841035,1
350520304701647,8
40058032525M 273063,5
5007153665020M 3033102

Dimensions Of DIN 2642 PN10 Flange

PipeFlangeScrewsWeight
(7,85 Kg/dm3)
Rated
Diameter
d1Dd6bkeHolesThreadd2Kg
ISO 
Series 1
DIN 
Series 2
15209522146534M 12140,689
21,324
202510528147534M 12140,806
26,930
253011533168544M 12141,11
33,736
3238140421610044M 16181,64
42,446
4044,5150501611044M 16181,86
48,354
5057165621612554M 16182,2
60,365
6576,1185811614554M 16182,62
8088,9200941816058M 16183,32
1001082201131818058M 16183,67
114,3119
1251332501381821058M 16184,54
139,7145
1501592851641824058M 20225,6
168,3173
200219,13402252029558M 20227,46
25026739527322350512M 202210,3
273279
300323,944532926400512M 202214
350355,650536228460616M 202218,5
368374
400406,456541332515616M 242625
419426
(450)45761546738565620M 242630,6
50050867051738620620M 242637
60061078061844725720M 273056,3
70071189572150840724M 273080,4
800813101582456950724M 3033113,2

Din 2566 Pn16 Threaded Flange Dimension Table

Rated
Diameter
 FlangeNeckRaised faceScrewsWeight
(7,85 Kg/dm3)
d1ThreadDbkh1d3d4fHolesThreadd2Kg
1521,3R 1/295146520354524M 12140,613
2026,9R 3/4105167524455824M 12140,91
2533,7R 1115168524526824M 12141,1
3242,4R 1 1/41401610026607824M 16181,6
4048,3R 1 1/21501611026708834M 16181,78
5060,3R 216518125288510234M 16182,43
6576,1R 2 1/2185181453210512234M 16183,18
8088,9R 3200201603411813838M 16184,12
100114,3R 4220201803814015838M 16184,47
125139,7R 5250222104016818838M 16186,13
150165,1R 6285222404419521238M 20227,92

Din 2565 Pn 6 Threaded Flange Dimension Standard

Rated
Diameter
 FlangeNeckRaised faceScrewsWeight
(7,85 Kg/dm3)
d1ThreadDbkh1d3d4fHolesThreadd2Kg
1521,3R 1/280125520304024M 10110,373
2026,9R 3/490146524405024M 10110,59
2533,7R 1100147524506024M 10110,743
3242,4R 1 1/4120149026607024M 12141,05
4048,3R 1 1/21301410026708034M 12141,2
5060,3R 21401411028809034M 12141,37
6576,1R 2 1/2160141303210011034M 12141,92
8088,9R 3190161503411012834M 16182,82
100114,3R 4210161703813014834M 16183,19
125139,7R 5240182004016017838M 16184,47
150165,1R 6265182254418520238M 16185,3

Din 2631 Pn6 Welding Neck Flange Dimensions Schedule

PipeFlangeNeckRaised faceScrewsWeight
(7,85 Kg/dm3)
Ratedd1Dbkh1d3srh2d4fHolesThreadd2Kg
DiameterISO SeriesDIN Series
152080125530282464024M 10110,392
21,330
202590146532352,3465024M 10110,592
26,938
2530100147535402,6466024M 10110,747
33,742
3238120149035502,6667024M 12141,05
42,455
4044,51301410038582,6678034M 12141,18
48,362
50571401411038702,9689034M 12141,34
60,374
6576,11601413038882,96911034M 12141,67
8088,919016150421023,281012834M 16182,71
10010821016170451223,681014834M 16183,24
114,3130
1251332401820048148481017838M 16184,49
139,7155
15015926518225481724,5101220238M 16185,15
168,3184
200219,132020280552365,9101525838M 16187,78
25026737522335602826,31215312312M 161810,8
273290
300323,944022395623427,11515365412M 202214
350355,649022445623857,11215415412M 202218,5
36816,7
400406,454022495654387,11215465416M 202221,2
41919
50050864524600685387,11215570420M 202228,6
60061075524705706407,11216670520M 242631,5
70071186024810707407,11216775524M 242637,4
80081397524920708427,11216880524M 273046,1
9009141075261020709427,11216980524M 273055,6
1000101611752611207010457,116161080528M 273061,9

Din 2633 Flange Dimension Table

DNd1Dd6bkeNo. of
holes
d2KG
ISODIN
10149016166054140.7
 17.29019166054140.69
15209522166554140.77
 21.39524166554140.76
202510528167554140.93
 26.910530167554140.92
253011533188564141.26
 33.711536188564141.24
3238140421810064181.84
 42.4140461810064181.8
4044.5150501811064182.08
 48.3150541811064182.03
5057165622012564182.72
 60.3165652012564182.68
6576.1165812014568183.09
8088.9200942216068183.88
1001082351132219068225.23
 114.32351192219068225.04
1251332701382422068267.17
 139.72701452422068266.88
1501593001642425068268.54
 168.33001732425068268.09
200219.1375225303208123014.65
250267450273363858123325.5
 273450279363858123324.77
300323.9515329404508163334.42
350355.8580362465108163652.36
 363580374465108163649.85
400406.4660413505858163974.2
 419660426505858163970.84

Din 2653 Flange Dimension Standard

DNd1Dd6bkeNo. of holesThreadd2d4d5h3KG
Flange
KG
Ring
ISODIN
10149016146054M12144014.5100.5990.087
 17.29019146054M12144017.7100.5990.087
15209522146554M12144521100.6890.105
 21.39524146554M12144522100.6890.105
202510528147554M12145826120.8060.203
 26.910530147554M12145827.6120.8060.203
253011533168564M12146831120.1100.276
 33.711536168564M12146834.4120.1100.276
3238140421610064M16187839121.6400.343
 42.4140461610064M16187843.1121.6400.343
4044.5150501611064M16188845.5121.8600.426
 48.3150541611064M16188849121.8600.426
5057165621612564M161810258.1142.2000.618
 60.3165651612564M161810261.1142.2000.618
6576.1185811614564M161812277.1142.6200.786
8088.9200941816064M161813890.3163.3201.100
1001082201131818064M1618158109.6163.6701.310
 114.32201191818064M1618158115.9163.6701.310
1251332501381821068M1618188134.8184.5401.960
 139.72501451821068M1618188141.6184.5401.960
1501592851641824068M2022212161.1185.6002.180
 168.32851731824068M2022212170.5185.6002.180
200219.13402252029588M2022268221.8207.4603.100
2502673952732235088M2022320270.22210.304.220
 27339527922350812M2022320276.22210.304.220
300323.944532926400812M2022370327.62214.004.850
350355.650536228460812M2022430359.72218.506.710
 36850537428460812M2022430372.22218.506.710
400406.456541332515816M24264824112425.008.280
 41956542632515816M2426482423.72425.008.280
(450)45761546738565816M2426532462.52430.609.300
50050867051738620820M2426585513.62637.0011.50

Application

  • Food & Beverage
  • Paper Industry
  • Pharmaceutical
  • Hospital Equipment
  • Textiles
  • Dairy
  • Aircraft
  • Chemicals
  • Others Parts in Machinery
Employee

Testing

  • Hydrostatic Test
  • Macro Test
  • Ultra Sonic Test (UT)
  • Micro Test
  • Hardness Test
  • Radiography Test
  • Pitting Resistance Test
  • PMI Testing
  • Mechanical Testing
  • X-ray detector
MARKET

Packing

  • Wooden Boxes
  • Shrink-Wrappedt
  • Carton Boxes
  • Wooden Crates
  • Wooden Pallets
Employee
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