1 inch ASME B16.5 Flange Weight
1 inch (DN 25) to ASME B16.5: Class 150 1.1 kg; Class 300 1.6 kg; Class 600 1.8 kg; Class 900 4.1 kg; Class 1500 4.1 kg.
Key to dimensions
1 inch ASME B16.5 Flange Weight — all dimensions
Weld neck flange weight (kg, approximate)
| Dimension | Value | Equivalent |
|---|---|---|
| Class 150 | 1.1 kg | 2.4 lb |
| Class 300 | 1.6 kg | 3.5 lb |
| Class 600 | 1.8 kg | 4.0 lb |
| Class 900 | 4.1 kg | 9.0 lb |
| Class 1500 | 4.1 kg | 9.0 lb |
| Class 2500 | 5.9 kg | 13.0 lb |
Slip-on flange weight (kg, approximate)
| Dimension | Value | Equivalent |
|---|---|---|
| Class 150 | 0.9 kg | 2.0 lb |
| Class 300 | 1.4 kg | 3.1 lb |
| Class 600 | 1.8 kg | 4.0 lb |
| Class 900 | 3.4 kg | 7.5 lb |
Blind flange weight (kg, approximate)
| Dimension | Value | Equivalent |
|---|---|---|
| Class 150 | 0.9 kg | 2.0 lb |
| Class 300 | 1.4 kg | 3.1 lb |
| Class 600 | 1.8 kg | 4.0 lb |
| Class 900 | 3.7 kg | 8.2 lb |
| Class 1500 | 3.7 kg | 8.2 lb |
| Class 2500 | 5.0 kg | 11.0 lb |
Values are nominal, from ASME B16.5 Flange Weight Chart. Verify critical dimensions against the current edition of the standard before design, purchase or fabrication.
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Other sizes — ASME B16.5 Flange Weight Chart
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1 inch ASME B16.5 Flange Weight: common questions
What are the 1 inch ASME B16.5 Flange Weight?
1 inch (DN 25) to ASME B16.5: Class 150 1.1 kg; Class 300 1.6 kg; Class 600 1.8 kg; Class 900 4.1 kg; Class 1500 4.1 kg.
Does Teshi Group manufacture 1 inch flanges?
Yes. Teshi Group is an OEM manufacturer in India of flanges to ASME B16.5, in carbon, alloy, stainless, duplex, super duplex, nickel alloys, titanium and Cu-Ni, with EN 10204 3.1 certificates.
Can I download the 1 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 ASME B16.5 Flange Weight Chart chart.
Need 1 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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