The ASME B16.5 standard governs the specifications for pipe flanges and flanged fittings used in various piping applications. This standard is widely recognized in industries such as oil and gas, petrochemicals, power generation, and water treatment, ensuring safe and reliable connections in piping systems.

ASME B16.5 Standard Pipe Flanges Dimensions:

ASME B16.5 Weld Neck Flange Dimensions (150lb-2500lb)
ASME B16.5 Slip On Flange Dimensions (150lb-1500lb)
ASME B16.5 Blind Flange Dimensions (150lb-2500lb)
ASME B16.5 Socket Weld Flange Dimensions (150lb-1500lb)
ASME B16.5 Lap Joint Flange Dimensions (150lb-2500lb)
ASME B16.5 Threaded Flange Dimensions (150lb-2500lb)

Haihao Group forged flanges engineering department,design,produce,inspect and supply our forged flanges according to the ASME B16.5 standard.The following is a detailed description of ASME B16.5 standard:

• • 1. SCOPE
  • 2. PRESSURE-TEMPERATURE RATINGS
  • 3. COMPONENT SIZE
  • 4. MARKING
  • 5. MATERIALS
  • 6. DIMENSIONS
  • 7. TOLERANCES
  • 8. PRESSURE TESTING

ASTM A350 LF2 CL1 ASME B16.5 weld neck flanges

3 COMPONENT SIZE

3.1 Nominal Pipe Size

As applied in ASME B16.5 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 Table 6(Table 6C),Note(4) .

At Haihao Group, we specialize in providing a full range of ASME B16.5 pipe flanges and flanged fittings. Whether you’re looking for weld neck flanges, slip-on flanges, blind flanges, or any other type, we have the expertise and products to meet your specific needs.

If you want to learn more about our product offerings or have any inquiries, please feel free to contact us. We look forward to partnering with you for all your piping needs.