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Flanges

Technical solutions

Flanges : dimensions – pitch circle

Flange dimensions and bolt pitch circle are set in French, European and International Standards, to permit assembly of all types of flanged products.

All flanges (fixed or rotatable) on PAM pipes and fittings may be delivered in accordance with the following standards:

Bolts hole pitch circle
EN 1092
ISO 7005

Flange dimensions
EN 1092-2
ISO 7005-2

Nuts and bolts
EN 24014
EN 24016
EN 24032
EN 24034
ISO 4014
ISO 4016
ISO 4032
ISO 4034

Pitch circle

Flanges and bolts dimensions
DNPN 10PN 16PN 25
FlangeBoltFlangeBoltFlangeBolt
DClNbrdDClNbrdDClNbrd
mmmmmmmmmmmmmmmmmmmmmmmm
40See PN 40Voir PN 40See PN 40
50
60See PN 16175135194M16
65185145194M16
80See PN 40Voir PN 40
100See PN 16220180198M16
125250210198M16
150285240238M20
200340295238M203402952312M203603102812M24
2504003502312M204003552812M244253703112M27
3004554002312M204554102812M244854303116M27
3505054602316M205204702816M245554903416M30
4005655152816M245805253116M276205503716M33
4506155652820M246405853120M276706003720M33
5006706202820M247156503420M307306603720M33
6007807253120M278407703720M338457704020M36
7008958403124M279108403724M339608754324M39
8001 0159503424M301 0259504024M361 0859904924M45
9001 1151 0503428M301 1251 0504028M361 1851 0904928M45
1 0001 2301 1603728M331 2551 1704328M391 3201 2105628M52
1 1001 3401 2703732M331 3551 2704332M391 4201 3105632M52
1 2001 4551 3804032M361 4851 3904932M451 5301 4205632M52
1 4001 6751 5904336M391 6851 5904936M451 7551 6406236M56
1 5001 7851 7004336M391 8201 7105636M521 8651 7506236M56
1 6001 9151 8204940M451 9301 8205640M521 9751 8606240M56
1 8002 1152 0204944M452 1302 0205644M522 1952 0707044M64
2 0002 3252 2304948M452 3452 2306248M562 4252 3007048M64

Flanges and bolts dimensions
DNPN 40PN 63*PN 100**
FlangeBoltFlangeBoltFlangeBolt
DClNbrdDClNbrdD***C***lNbrd
mmmmmmmmmmmmmm
40150110194M16170125234M20170125224M20
50165125194M16180135234M20195145264M24
60175135198M16190145238M20-----
65185145198M16205160238M20220170268M24
80200160198M16215170238M20230180268M24
100235190238M20250200288M24265210308M27
125270220288M24295240318M27315250338M30
150300250288M24345280348M303552903312M30
2003753203112M274153453712M334303603612M33
2504503853412M304704003712M335054303912M36
3005154503416M305304603716M335855004216M39
* Dimensions of ductile iron flanges PN 63: EN 1092-2
** Dimensions of flanged fittings PN 100: EN 1092-1
*** Length (L) given as an indication (to be checked before assembly according to the thickness of joints and gaskets used.)

Dimensions of loose flanges

Loose flanges dimensions
DNPN 10PN 16
DgabcWeightDgabcWeight
mmmmmmmmmmkgmmmmmmmmmmkg
40See PN 40See PN 40
50
60See PN 16175108232031.8
65185108232032.3
80See PN 40See PN 40
100See PN 16220156232032.5
125250184252233.2
150285211262334.2
200340266292636340266292635.9
250400319322938,6400319322938.2
3004553703632411,34553703632410.6
3505054293935414,15204293935414.9
4005654824238416,55804804238421
4506155274541420,56405274541427
50067058248444257155824844438
60078068255505338406825550558

loose flanges dimensions
DNPN 25PN 40
DgabcWeightDgabcWeight
mmkgmmkg
40See PN 4015084221931.4
5016599221931.6
6017510822.519.531.4
6518510822.519.532.4
80200132232032.3
100235156232033
12527018424.521.534.1
150300211262335.2
200360266292637.4375266333039.2
250*4253193229311.14503453734317.9
300*4853703632414.25154094238423.5
3505554293935421 
4006204824238430
4506705274541435
5007305824844444
6008456825550561
Note
Loose flanges in the DN 40 to 200 PN 10-16-25-40 and DN 250 to 600 PN 10-16-25 ranges are interchangeable and fit on the rims of standard manufacture fittings.
* Loose flanges in the DN 250 to 300 PN 40 range require fittings to be equipped with a special rim.

Dimensions of integral flanges

Integral flanges dimensions
DNPN 10PN 16PN 25
DgabcDgabcDgabc
mm
60See PN 40See PN 40See PN 40
80
100See PN 1622015619163
12525018419163
15028521119163
200340266201733402662017336027422193
250400319221934003192219336027422193
30045537024.520.5445537024.520.5448538927.523.54
35050542924.520.5452042926.522.5455544830264
40056548024.520.545804802824462050332284
45061552725.521.546405443026467055334.530.54
50067058226.522.5471560931.527.5473060936.532.54
600780682302558407203631584572042375
70089579432.527.5591079439.534.5596082046.541.55
8001 015901353051 025901433851 08592851465
9001 1151 00137.532.551 1251 00146.541.551 1851 02855.550.55
1 0001 2301 112403551 2551 112504551 3201 14060555
1 1001 3401 22142.537.551 3551 21553.548.551 4201 24264.559.55
1 2001 4551 328454051 4851 328575251 5301 35069645
1 4001 6751 530464151 6851 530605551 7551 56074695
1 5001 7851 64047,542,551 8201 64062,557,551 8651 67878735
1 6001 9151 750494451 9301 750656051 9751 78081765
1 8002 1151 950524752 1301 950706552 1951 98588835
2 0002 3252 150555052 3452 150757052 4252 21095905
 

Ductile Iron flanges thickness
DNPN 40PN 63PN 100*
DgabcDdimensions of the ductile iron flanges - (a)Ddimensions of the ductile iron flanges - (a)*
mmmmmmmmmmmmmmmmmm
601751081916319028--
80200132191632153123038*
100235156191632503326542*
1252708423.520.532953731544*
150300211262333453935554*
200375284302734154643066*
250     47050please consult us
300     53057please consult us
*dimensions of the ductile iron flanges given as an indication

Dimensions of bolts

Flanges bolts dimensions
DNFlange bolts
PN 10PN 16PN 25
NumberDesignationNumberDesignationNumberDesignation
HMdL/XHMdL/XHMdL/X
 mm  mm  mm 
404HM1685/574HM1685/574HM1685/57
50
60
65
80888
100HM1690/62HM1690/62HM20100/72
125HM24110/82
150HM20100/72HM20100/72
2001212
25012HM20110/76HM24100/82HM27130/90
300HM20120/83HM24130/9316
35016HM20130/9316HM30140/93
400HM24140/103HM27150/105HM33150/100
45020HM24130/9320HM27130/9020
500HM24150/110HM30160/110HM33160/100
600HM27170/122HM33180/117HM36180/110
70024HM27150/10524HM33150/10024HM39180/105
800HM30160/110HM36160/92HM45190/110
900282828
1000HM33180/117HM39180/105HM52230/130
110032HM33160/1003232
1200HM36180/110HM45210/115
140036HM39180/1053636HM56260/133
1500HM52230/130
160040HM45190/1104040
1800444444HM64300/145
20004848HM56260/13348

 

Flange bolts dimensions
DNFlange bolts
PN 40PN 63PN 100
NumberDesignationNumberDesignationNumberDesignation
HMdL/XHMdL*HMdL*
 mm  mm  mm 
404HM1685/57        
50
608
65
808HM2090 *8HM24110 *
100HM20100/72HM24110 *HM27120 *
125HM24110/82HM27120 *HM30150 *
150HM30150 *HM30150 *
20012HM27130/9012HM33180 *12HM33180 *
250HM30140/93HM33180 *    
3001616HM33180 *
350        
400
450
500
600
700
800
900
1000
1100
1200
1400
1500
1600
1800
2000
* lengths (L) given as an indication (to be checked before assembly according to the thickness of joints and gaskets used.