DN 350 IS 6392 PN 64 Flange Dimensions
DN 350 (14") to IS 6392: pipe OD 355.6 mm; OD 600 mm; thickness 72 mm; raised face 465 mm; RF height 4 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
- N
- Neck / hub diameter at base
- H
- Length through hub / neck length
- K
- Bolt circle (pitch circle) diameter
- n
- Number of bolts
- L
- Bolt hole diameter
- Bolt
- Bolt size (metric M or inch diameter)
DN 350 IS 6392 PN 64 Flange Dimensions — all dimensions
PN 64 (Table 34) — plate flanges for welding (slip-on plate)
| Dimension | Value | Equivalent |
|---|---|---|
| Pipe OD — A | 355.6 mm | 14.00 in |
| Flange OD — D | 600 mm | 23.62 in |
| Flange — C | 72 mm | 2.83 in |
| Raised face — d1 | 465 mm | 18.31 in |
| RF height — f | 4 mm | 0.157 in |
| Bolt circle — K | 525 mm | 20.67 in |
| Number of bolts | 16 | |
| Hole dia — L | 39 mm | 1.54 in |
| Bolt size | M36 |
PN 64 (Table 33) — weld-neck flanges
| Dimension | Value | Equivalent |
|---|---|---|
| Pipe OD — A | 355.6 mm | 14.00 in |
| Flange OD — D | 600 mm | 23.62 in |
| Weld neck — C | 56 mm | 2.20 in |
| WN length — H | 150 mm | 5.91 in |
| Hub / neck dia — N | 420 mm | 16.54 in |
| Raised face — d1 | 465 mm | 18.31 in |
| RF height — f | 4 mm | 0.157 in |
| Bolt circle — K | 525 mm | 20.67 in |
| Number of bolts | 16 | |
| Hole dia — L | 39 mm | 1.54 in |
| Bolt size | M36 |
Values are nominal, from IS 6392 PN 64 Flange Dimensions. Verify critical dimensions against the current edition of the standard before design, purchase or fabrication.
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DN 350 IS 6392 PN 64 Flange Dimensions: common questions
What are the DN 350 IS 6392 PN 64 Flange Dimensions?
DN 350 (14") to IS 6392: pipe OD 355.6 mm; OD 600 mm; thickness 72 mm; raised face 465 mm; RF height 4 mm.
Does Teshi Group manufacture DN 350 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 350 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 64 Flange Dimensions chart.
Need DN 350 flanges?
Teshi Group manufactures them in India — send your size, rating and material and get a quote in 24–48 hours.
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