This document provides information about DIN 2634/PN25 flanges, including: - Amiable Impex manufactures and exports DIN 2634 flanges with a nominal pressure of 25. - The document includes a table with specifications for DIN 2634 flanges in sizes ranging from 15mm to 1000mm, including dimensions, weights, and bolt sizes. - Common international flange standards include ASME, DIN, BS, and JIS, which have different pressure classes and are not generally interchangeable between standards.

1. AMIABLE IMPEX. Email info@amiableimpex.com Tel. +91-22-28933996 / +91-9594899995 URL-www.amiableimpex.com
Din 2634 / Din2634 / DIN 2634 PN25 FLANGE WELD NECK RF
WELDING NECK FLANGES NOMINAL PRESSURE 25 (DIN 2634)
We manufacture and export Din 2634. Our range of Flanges includes Din2634.
Pipe Flange Neck Raised
face
Screws Weight of a
flange
(7,85 Kg/dm3)
Rated
Diameter
d1 D b k h1 d3 s r h2 d4 f Number Thread d2 Kg
ISO
Series 1
DIN
Series 2
15 - 20 95 16 65 38 30 2 4 6 45 2 4 M 12 14 0,746
21,3 - 32
20 - 25 105 18 75 40 38 2,3 4 6 58 2 4 M 12 14 1,06
26,9 - 40
25 - 30 115 18 85 40 42 2,6 4 6 68 2 4 M 12 14 1,29
33,7 - 45
32 - 38 140 18 100 42 52 2,6 6 6 78 2 4 M 16 18 1,88
42,4 - 56
40 - 44,5 150 18 110 45 60 2,6 6 7 88 3 4 M 16 18 2,33
48,3 - 64
50 - 57 165 20 125 48 72 2,9 6 8 102 3 4 M 16 18 2,82
60,3 - 75
65 76,1 - 185 22 145 52 90 2,9 6 10 122 3 8 M 16 18 3,74
80 88,9 - 200 24 160 58 105 3,2 8 12 138 3 8 M 16 18 4,75
100 - 108 235 24 190 65 128 3,6 8 12 162 3 8 M 20 22 6,52
114,3 - 134
125 - 133 270 26 220 68 155 4 8 12 188 3 8 M 24 26 9,07
139,7 - 162
150 - 159 300 28 250 75 182 4,5 10 12 218 3 8 M 24 26 11,8
168,3 - 192
(175) 193,7 - 350 28 280 75 218 5,6 10 15 248 3 12 M 24 26 13,4
200 219,1 - 360 30 310 80 244 6,3 10 16 278 3 12 M 24 26 17
250 - 267 425 32 370 88 292 7,1 12 18 335 3 12 M 27 30 24,4

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273 - 298
300 323,9 - 485 34 430 92 352 8 12 18 395 4 16 M 27 30 31,2
350 355,6 - 555 38 490 100 398 8 12 20 450 4 16 M 30 33 47,2
- 368 44,2
400 406,4 - 620 40 550 110 452 8,8 12 20 505 4 16 M 33 36 61,7
- 419 57,9
(450) 457 - 670 42 600 110 500 8,8 12 20 550 4 20 M 33 36 71,9
500 508 - 730 44 660 125 558 10 12 20 615 4 20 M 33 36 89,6
600 610 - 845 46 770 125 660 11 12 20 720 5 20 M 36 39 104
700 711 - 960 46 875 125 760 13 20 24 820 5 24 M 39 42 136
800 813 - 1085 50 990 135 865 14 22 24 930 5 24 M 45 48 186
900 914 - 1185 54 1090 145 968 16 24 28 1030 5 28 M 45 48 236
1000 1016 - 1320 58 1210 155 1070 18 24 28 1140 5 28 M 52 56 307
There are many different flange standards to be found worldwide. To allow easy functionality and inter-
changeability, these are designed to have standardised dimensions. Common world standards include
 ASA Flange /ANSI flanges /ASME flanges (USA),
 PN flanges /DIN flanges (European),
 BS10 flanges (British/Australian), and
 JIS flanges /KS flanges (Japanese/Korean)
In most cases these are not interchangeable (e.g. an ANSI/ASME flange will not mate against a JIS
flange). Further, many of the flanges in each standard are divided into "pressure classes", allowing flanges
to be capable of taking different pressure ratings. Again these are not generally interchangeable (e.g. an
ANSI/ASME 150 will not mate with an ANSI/ASME 300).
These pressure classes also have differing pressure and temperature ratings for different materials. Unique
pressure classes for piping can also be developed for a process plant or power generating station; these
may be specific to the corporation, engineering procurement and construction (EPC) contractor, or the
process plant owner. The ANSI/ASME pressure classes for Flat-Face flanges are 125# and 250#. The classes
for Ring-Joint, Tongue & Groove, and Raised-Face flanges are 150#, 300#, 600#, 900#, 1500#, and
2500#.
The flange faces are also made to standardized dimensions and are typically "flat face", "raised face",
"tongue and groove", or "ring joint" styles, although other obscure styles are possible.
Flange designs are available as "weld neck", "slip-on", "lap joint", "socket weld", "threaded", and also
"blind".
Other countries
Flanges in other countries also are manufactured according to the standards for materials, pressure ratings,
etc. Such standards include DIN, BS, and/or ISO standards.
Fields Name
din 2634, din2634, din 2634 flange, 2634 flanges, pn25 flange, pn 25 flange, pn25 flanges, pn 25 flanges, din
2634 pn25, pn25 flange dimensions

3. AMIABLE IMPEX. Email info@amiableimpex.com Tel. +91-22-28933996 / +91-9594899995 URL-www.amiableimpex.com
Our Other products in Copper Conductors & Copper Products
MAULIK SHAH
E-mail: maulik@amiableimpex.com
Mob :+ 91- 9594899995
S.no Table Of Content
1) 150 lb Flange
2) 300 lb Flange
3) 600 lb Flange
4) 900 lb Flange
5) 1500 lb Flange
6) 2500 lb Flange
7) Weld Neck Flanges
8) Din 2527 pn10 Blind Flanges
9) Din 2576 pn10 Flanges
10) Din2632 pn 10 Flanges
11) Din2633 pn16 Flanges
12) Din2634 pn25 Flanges
13) Din2642 pn 10 flanges
14) Din2635 pn 40 flanges
Regd. Office - AMIABLE IMPEX.
101/A, Surya Darshan, Pai Nagar,
Borivali(W), Mumbai – 400092. India.
Phone: 022-28933996 / 022-28957101
Fax: 022-28957102
Workshop - AMIABLE IMPEX
Plot No.495, Rohitvas,
Motapondha, Vapi-396191
Gujarat,India.
UJJWAL SHAH
Email: ujjwal@amiableimpex.com
Website: www.amiableimpex.com