350A JIS B2220 30K Flange Dimensions
350A (DN 350) to JIS B2220: pipe OD 355.6 mm; OD 560 mm; thickness 54 mm; raised face 450 mm; PCD 495 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
- K
- Bolt circle (pitch circle) diameter
- n
- Number of bolts
- L
- Bolt hole diameter
- Bolt
- Bolt size (metric M or inch diameter)
350A JIS B2220 30K Flange Dimensions — all dimensions
JIS B2220 30K — slip-on / blind flange dimensions (mm)
| Dimension | Value | Equivalent |
|---|---|---|
| Pipe OD — A | 355.6 mm | 14.00 in |
| Flange OD — D | 560 mm | 22.05 in |
| Flange — C | 54 mm | 2.13 in |
| Raised face — d1 | 450 mm | 17.72 in |
| Bolt circle — K | 495 mm | 19.49 in |
| Number of bolts | 16 | |
| Hole dia — L | 33 mm | 1.30 in |
| Bolt size | M30×3 |
Values are nominal, from JIS B2220 30K Flange Dimensions. Verify critical dimensions against the current edition of the standard before design, purchase or fabrication.
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350A JIS B2220 30K Flange Dimensions: common questions
What are the 350A JIS B2220 30K Flange Dimensions?
350A (DN 350) to JIS B2220: pipe OD 355.6 mm; OD 560 mm; thickness 54 mm; raised face 450 mm; PCD 495 mm.
Does Teshi Group manufacture 350A flanges?
Yes. Teshi Group is an OEM manufacturer in India of flanges to JIS B2220, in carbon, alloy, stainless, duplex, super duplex, nickel alloys, titanium and Cu-Ni, with EN 10204 3.1 certificates.
Can I download the 350A 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 JIS B2220 30K Flange Dimensions chart.
Need 350A 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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