DIN Weld Neck Flanges – Type 11 – PN320

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DIN Flange Dimensions

PN10 | PN16 | PN25 | PN40 | PN63 | PN100 | PN160 | PN250 | PN320 | PN400

DNDkd4Sd1d3
1012585402.617.244
1513090453.221.348
25160115685.033.768
40195145886.348.392
502101601028.063.5106
6525520012211.088.9138
8027522013812.5101.6156
10033526516216.0133.0186
12538031018820.0168.3230
15042535021825.0193.7265
20052544028530.0244.5345
25064054034540.0323.9428
DNDkd4Sd1d3


DIN Flange Dimensions

PN10 | PN16 | PN25 | PN40 | PN63 | PN100 | PN160 | PN250 | PN320 | PN400

DNd2fbh1h2r
10182245864
15182266064
25222347884
402633888106
5026342100106
6530351120126
8030355130148
10036365145168
12536375175208
150393841952510
2004231032353010
2505231253004012
DNd2fbh1h2r


DIN Flange Dimensions

PN10 | PN16 | PN25 | PN40 | PN63 | PN100 | PN160 | PN250 | PN320 | PN400

DNNo of BoltsDia. of Hex BoltsLength of Hex BoltsDia. of Stud BoltsSLength of Stud Bolts
104M16705/8"90
154M16755/8"95
254M20953/4"115
404M241107/8"135
508M241157/8"140
658M271401"165
808M271451"175
1008M331701-1/4"210
12512M331901-1/4"230
15012M362151-3/8"255
20016M392551-1/2"300
25016M483101-7/8"365
DNNo of BoltsDia. of Hex BoltsLength of Hex BoltsDia. of Stud BoltsSLength of Stud Bolts

PN10 | PN16 | PN25 | PN40 | PN63 | PN100 | PN160 | PN250 | PN320 | PN400

Legend

D = Outside Diameter
k = Diameter of Bolt Circle
d2 = Diameter of Bolt Holes
d4 = Diameter of Raised Face
f = Height of Raised Face
d1 = Outside Diameter of Neck
b = Flange thickness
h1 = Length of Flange
h2 = Length of right end
d3 = Neck Diameter
r = Radius of Corners
S = Wall thickness

General notes:

  1. Dimensions are in millimeters unless otherwise indicated.
  2. Butt-weld ends (must be specified when ordering) acc. to DIN 3239-1-R6 edge form 22 to DIN 2559 (DIN EN ISO 9692)

Extra notes:

  1. Hex bolt lengths and diameters & lengths of Stud Bolts are calculated.
  2. All bolt lengths calculated without washers, spring washers etc. and free threads (equals 1/3 time bolt diameter).
  3. Gasket thickness considered 3 mm for bolt length calculations.
  4. The dimensions of the bolts are for the type 11 weld neck flange.
  5. Please not that other types of flanges can be have different bolt hole diameters and thicknesses, so that the bolts even can have different dimensions.

PN10 | PN16 | PN25 | PN40 | PN63 | PN100 | PN160 | PN250 | PN320 | PN400

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