ASME B16.5-2017 Standard-Pipe Flanges and Flanged Fittings(NPS 1/2 Through NPS 24 Metric/Inch Standard) Component Size
ASME B16.5 Pipe Flanges and Flanged Fittings: NPS 1/2 through NPS 24 Metric/Inch Standard covers pressure-temperature ratings, materials, dimensions, tolerances, marking, testing, and methods of designating openings for pipe flanges and flanged fittings.
Haihao Group forged flanges engineering department,design,produce,inspect and supply our forged flanges according to the ASME B16.5-2017 standard.
ASME B16.5-2017 Standard – Pipe Flanges and Flanged Fittings(NPS 1/2 Through NPS 24 Metric/Inch Standard)
- 1. SCOPE
- 2. PRESSURE-TEMPERATURE RATINGS
- 3. COMPONENT SIZE
- 4. MARKING
- 5. MATERIALS
- 6. DIMENSIONS
- 7. TOLERANCES
- 8. PRESSURE TESTING
3.1 Nominal Pipe Size
As applied in this Standard,the use of the phrase “nominal pipe size” or the designation NPS followed by a dimensionless number is for the purpose of pipe,flange,or flanged fitting end connection size identification.The number is not necessarily the same as the flange or flanged fitting inside diameter.
3.2 Reducing Fittings
Reducing fittings shall be designated by the NPS for the openings in the sequence indicated in the sketches of Figure 5.
3.3 Reducing Flanges
Reducing flanges shall be designated by the NPS for each opening.See examples in Note(4) of Table 6(Table Ⅱ-6 of Mandatory Appendix Ⅱ).
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