Welwin Pipes & Fittings is a dynamic group, which was established over a decade ago to cater to growing demands of DIN
Flanges standards in Weld Neck Flanges, Blind Flanges, Threaded Flanges, Loose or Lap Joint Flanges in all materials like Stainless Steel ,
Carbon Steel & High Nickel Alloys. We Manufacture, Export and Supply Flanges which meets with
national and international quality standards and producing base which owns equipments conforming to international technical level
and is well equipped with a whole set of advanced plasma refining equipments.
We export our high quality DIN Flanges to Kuwait, Egypt and Qatar.
Size : DN10-DN2000
Standard: DIN2527
Type:Welding Neck Flange, WN Flange (Raised Face)
Process: Forged and Stamped
Pressure grade: PN
| Flange Nominal Diameter | Pressure Rating (PN) | |||||
|---|---|---|---|---|---|---|
| **Nominal BSP Pipe Size | PN6 | PN10 | PN16 | PN25 | PN40 | |
DN 10 |
75 |
90 |
90 |
90 |
90 |
O.D. |
3/8" |
50 |
60 |
60 |
60 |
60 |
PCD (bolt circle) |
|
4 x 11 |
4 x 14 |
4 x 14 |
4 x 14 |
4 x 14 |
# of holes x diam. of holes |
DN 15 |
80 |
95 |
95 |
95 |
95 |
O.D. |
1/2" |
55 |
65 |
65 |
65 |
65 |
PCD (bolt circle) |
|
4 x 11 |
4 x 14 |
4 x 14 |
4 x 14 |
4 x 14 |
# of holes x diam. of holes |
DN 20 |
90 |
105 |
105 |
105 |
105 |
O.D. |
3/4" |
65 |
75 |
75 |
75 |
75 |
PCD (bolt circle) |
|
4 x 11 |
4 x 14 |
4 x 14 |
4 x 14 |
4 x 14 |
# of holes x diam. of holes |
DN 25 |
100 |
115 |
115 |
115 |
115 |
O.D. |
1" |
75 |
85 |
85 |
85 |
85 |
PCD (bolt circle) |
|
4 x 11 |
4 x 14 |
4 x 14 |
4 x 14 |
4 x 14 |
# of holes x diam. of holes |
DN 32 |
120 |
140 |
140 |
140 |
140 |
O.D. |
1 1/4" |
90 |
100 |
100 |
100 |
100 |
PCD (bolt circle) |
|
4 x 14 |
4 x 18 |
4 x 18 |
4 x 18 |
4 x 18 |
# of holes x diam. of holes |
DN 40 |
130 |
150 |
150 |
150 |
150 |
O.D. |
1 1/2" |
100 |
110 |
110 |
110 |
110 |
PCD (bolt circle) |
|
4 x 14 |
4 x 18 |
4 x 18 |
4 x 18 |
4 x 18 |
# of holes x diam. of holes |
DN 50 |
140 |
165 |
165 |
165 |
165 |
O.D. |
2" |
110 |
125 |
125 |
125 |
125 |
PCD (bolt circle) |
|
4 x 14 |
4 x 18 |
4 x 18 |
4 x 18 |
4 x 18 |
# of holes x diam. of holes |
DN 65 |
160 |
185 |
185 |
185 |
185 |
O.D. |
2 1/2" |
130 |
145 |
145 |
145 |
145 |
PCD (bolt circle) |
|
4 x 14 |
4 x 18 |
4 x 18 |
8 x 18 |
8 x 18 |
# of holes x diam. of holes |
DN 80 |
190 |
200 |
200 |
200 |
200 |
O.D. |
3" |
150 |
160 |
160 |
160 |
160 |
PCD (bolt circle) |
|
4 x 18 |
8 x 18 |
8 x 18 |
8 x 18 |
8 x 18 |
# of holes x diam. of holes |
DN 100 |
210 |
220 |
220 |
235 |
235 |
O.D. |
4" |
170 |
180 |
180 |
190 |
190 |
PCD (bolt circle) |
|
4 x 18 |
8 x 18 |
8 x 18 |
8 x 22 |
8 x 22 |
# of holes x diam. of holes |
DN 125 |
240 |
250 |
250 |
270 |
270 |
O.D. |
5" |
200 |
210 |
210 |
220 |
220 |
PCD (bolt circle) |
|
8 x 18 |
8 x 18 |
8 x 18 |
8 x 26 |
8 x 26 |
# of holes x diam. of holes |
DN 150 |
265 |
285 |
285 |
300 |
300 |
O.D. |
6" |
225 |
240 |
240 |
250 |
250 |
PCD (bolt circle) |
|
8 x 18 |
8 x 22 |
8 x 22 |
8 x 26 |
8 x 26 |
# of holes x diam. of holes |
DN 175 |
|
315 |
315 |
330 |
350 |
O.D. |
7" |
|
270 |
270 |
280 |
295 |
PCD (bolt circle) |
|
|
8 x 22 |
8 x 22 |
12 x 26 |
12 x 30 |
# of holes x diam. of holes |
DN 200 |
320 |
340 |
340 |
360 |
375 |
O.D. |
8" |
280 |
295 |
295 |
310 |
320 |
PCD (bolt circle) |
|
8 x 18 |
8 x 22 |
12 x 22 |
12 x 26 |
12 x 30 |
# of holes x diam. of holes |
DN 250 |
375 |
395 |
405 |
425 |
450 |
O.D. |
10" |
335 |
350 |
355 |
370 |
385 |
PCD (bolt circle) |
|
12 x 18 |
12 x 22 |
12 x 26 |
12 x 30 |
12 x 33 |
# of holes x diam. of holes |
DN 300 |
440 |
445 |
460 |
485 |
515 |
O.D. |
12" |
395 |
400 |
410 |
430 |
450 |
PCD (bolt circle) |
|
12 x 22 |
12 x 22 |
12 x 26 |
16 x 30 |
16 x 33 |
# of holes x diam. of holes |
DN 350 |
490 |
505 |
520 |
555 |
580 |
O.D. |
14" |
445 |
460 |
470 |
490 |
510 |
PCD (bolt circle) |
|
12 x 22 |
16 x 22 |
16 x 26 |
16 x 33 |
16 x 36 |
# of holes x diam. of holes |
DN 400 |
540 |
565 |
580 |
620 |
660 |
O.D. |
16" |
495 |
515 |
525 |
550 |
585 |
PCD (bolt circle) |
|
16 x 22 |
16 x 26 |
16 x 30 |
16 x 36 |
16 x 39 |
# of holes x diam. of holes |
DN 500 |
645 |
670 |
715 |
730 |
755 |
O.D. |
20" |
600 |
620 |
650 |
660 |
670 |
PCD (bolt circle) |
|
20 x 22 |
20 x 26 |
20 x 33 |
20 x 36 |
20 x 42 |
# of holes x diam. of holes |
DN 600 |
755 |
780 |
840 |
845 |
|
O.D. |
24" |
705 |
725 |
770 |
770 |
|
PCD (bolt circle) |
|
20 x 24 |
20 x 27 |
20 x 33 |
20 x 36 |
|
# of holes x diam. of holes |
Packaging: DIN Flanges is sleeved into plastic bag individually, ten pieces wrapped with water-proof material, bundled with nylon rope. Clear labels are tagged on the outside of the package for easy identification of the quantity and product I.D. Great care is taken during operation and transportation.
Prevent any damage.
During transportation items are tagged, packed in plastic bags and closed in carton boxes or seaworthy wooden cases.
plywood case,pallet and according to customer's requirment
Marking: ASME B16.47 Flanges are marked with alloy name, outside diameter, wall thickness and heat number. Additional information like standard and alloy numbers can be added on request.
Stainless Steel
DIN Flanges
Carbon Steel
DIN Flanges
Duplex & Super
Steel DIN Flanges
Nickel Alloy
DIN Flanges
Inconel DIN Flanges
Incoloy DIN Flanges
Hastelloy DIN Flanges
Monel DIN Flanges