50 inch AWWA C207 Class E Flange Dimensions
50 inch (DN 1250) to AWWA C207: OD 61.75 in; PCD 58.25 in; bolts 44; holes 1.875 in; thickness 3.5 in.
Key to dimensions
- D
- Outside diameter of flange
- C
- Flange thickness, excluding raised face unless stated
- 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)
50 inch AWWA C207 Class E Flange Dimensions — all dimensions
Class E — steel ring (slip-on) flange, 275 psi — inches
| Dimension | Value | Equivalent |
|---|---|---|
| Flange OD — D | 61.75 in | 1568.4 mm |
| Bolt circle — K | 58.25 in | 1479.5 mm |
| Number of bolts | 44 | |
| Hole dia — L | 1.875 in | 47.6 mm |
| Slip-on ring — C | 3.5 in | 88.9 mm |
Class E — steel hub flange, 275 psi — inches
| Dimension | Value | Equivalent |
|---|---|---|
| Flange OD — D | 61.75 in | 1568.4 mm |
| Bolt circle — K | 58.25 in | 1479.5 mm |
| Number of bolts | 44 | |
| Hole dia — L | 1.875 in | 47.6 mm |
| Hub flange — C | 2.75 in | 69.8 mm |
| Overall length incl. hub — H | 4.125 in | 104.8 mm |
| Hub / neck dia — N | 54.25 in | 1377.9 mm |
Values are nominal, from AWWA C207 Class E Flange Dimensions. Verify critical dimensions against the current edition of the standard before design, purchase or fabrication.
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FAQ
50 inch AWWA C207 Class E Flange Dimensions: common questions
What are the 50 inch AWWA C207 Class E Flange Dimensions?
50 inch (DN 1250) to AWWA C207: OD 61.75 in; PCD 58.25 in; bolts 44; holes 1.875 in; thickness 3.5 in.
Does Teshi Group manufacture 50 inch flanges?
Yes. Teshi Group is an OEM manufacturer in India of flanges to AWWA C207, in carbon, alloy, stainless, duplex, super duplex, nickel alloys, titanium and Cu-Ni, with EN 10204 3.1 certificates.
Can I download the 50 inch 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 AWWA C207 Class E Flange Dimensions chart.
Need 50 inch 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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