DN 25 IS 6392 PN 16 Flange Dimensions
DN 25 (1") to IS 6392: pipe OD 33.7 mm; OD 115 mm; thickness 16 mm; raised face 68 mm; RF height 2 mm.
Key to dimensions
- D
- Outside diameter of flange
- A
- Pipe outside diameter (hub diameter at the weld end)
- C
- Flange thickness, excluding raised face unless stated
- d1
- Raised face diameter
- f
- Raised face height
- K
- Bolt circle (pitch circle) diameter
- n
- Number of bolts
- L
- Bolt hole diameter
- Bolt
- Bolt size (metric M or inch diameter)
DN 25 IS 6392 PN 16 Flange Dimensions — all dimensions
PN 16 (Table 17) — plate flanges for welding (slip-on plate)
| Dimension | Value | Equivalent |
|---|---|---|
| Pipe OD — A | 33.7 mm | 1.33 in |
| Flange OD — D | 115 mm | 4.53 in |
| Flange — C | 16 mm | 0.630 in |
| Raised face — d1 | 68 mm | 2.68 in |
| RF height — f | 2 mm | 0.079 in |
| Bolt circle — K | 85 mm | 3.35 in |
| Number of bolts | 4 | |
| Hole dia — L | 14 mm | 0.551 in |
| Bolt size | M12 |
PN 16 (Table 16 weld-neck + Table 20 blind) — thickness
| Dimension | Value | Equivalent |
|---|---|---|
| Flange OD — D | 115 mm | 4.53 in |
| Weld neck — C | 16 mm | 0.630 in |
| Blind — C | 16 mm | 0.630 in |
Values are nominal, from IS 6392 PN 16 Flange Dimensions. Verify critical dimensions against the current edition of the standard before design, purchase or fabrication.
Find another size or standard
Pick a product, standard and size — or just type — to see every dimension and download a watermarked PDF for that one size.
Other sizes — IS 6392 PN 16 Flange Dimensions
Same size in other ratings
Related for this size
1" Stud Bolt Chart for ASME B16.5 Flanges
Same size — open the dimensions page.
View online · PDFASME B16.201" ASME B16.20 Spiral Wound Gasket Dimensions
Same size — open the dimensions page.
View online · PDFASME B16.211" ASME B16.21 Non-Metallic Flat Gasket Dimensions
Same size — open the dimensions page.
View online · PDFASME B36.10M1" Pipe Schedule Chart — ASME B36.10M
Same size — open the dimensions page.
View online · PDFFAQ
DN 25 IS 6392 PN 16 Flange Dimensions: common questions
What are the DN 25 IS 6392 PN 16 Flange Dimensions?
DN 25 (1") to IS 6392: pipe OD 33.7 mm; OD 115 mm; thickness 16 mm; raised face 68 mm; RF height 2 mm.
Does Teshi Group manufacture DN 25 flanges?
Yes. Teshi Group is an OEM manufacturer in India of flanges to IS 6392, in carbon, alloy, stainless, duplex, super duplex, nickel alloys, titanium and Cu-Ni, with EN 10204 3.1 certificates.
Can I download the DN 25 dimensions as a PDF?
Yes. Use “Download PDF for this size” on this page to get a single-size, print-ready PDF with the drawing and every tabulated dimension, or download the full IS 6392 PN 16 Flange Dimensions chart.
Need DN 25 flanges?
Teshi Group manufactures them in India — send your size, rating and material and get a quote in 24–48 hours.
Ready to build to spec?
Share your drawing, bill of materials or technical requirements with the Teshi team.