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Dimensions Orifice Flanges RTJ

Dimensions Orifice Weld Neck RTJ flanges ASME B16.36 Class 600

General Notes:

  • Dimensions are in millimeters, except for bolts and bolt holes.
  • All other dimensions are in accordance with ASME B16.5.
  • Ring joint flanges larger than NPS 3 will require angular meter taps.

Notes:

  • Other NPT sizes may be furnished if required.
  • Bolt lengths for raised face flanges include allowance for orifice and gasket thickness of 6 mm (0.25 in.) for NPS 1 to NPS 12. Bolt lengths for ring-type joint flanges include allowance of 15 mm (0.62 in.) for NPS 1 to NPS 3.
  • Bore (B) is to be specified by the purchaser.
  • The length of the Stud Bolt does not include the height of the chamfers (points).

TOLERANCES

  • Tolerances on all dimensions shall be as shown in ASME B16.5 except for those shown below.

PRESSURE TAP LOCATION

  • Tolerance on location of center of pressure tap hole from flange face shall be:
  • ±0.5 mm (±0.02 in.) for flanges smaller than NPS 4
  • ±0.8 mm (±0.03 in.) for flanges NPS 4 and larger

BORE DIAMETER

  • Bore diameter tolerance (Welding Neck flanges only) is ±0.5% of nominal value.

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