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ASME B16.36 class 1500 welding neck orifice flange

2024-10-08 14:08:05 Hits:301 American Standards / Product Standards

The ASME B16.36 class 1500 welding neck orifice flange is a critical component in piping systems, designed for applications involving the measurement of fluid flow. This flange conforms to the ASME B16.36 standard, which specifies the design, materials, dimensions, and testing requirements for orifice flanges used in conjunction with orifice plates.

ASME B16.36 class 1500 welding neck orifice flange dimensions:

Commonly used in flow measurement setups, the Class 1500 welding neck orifice flange is essential for controlling and measuring fluid flow in pipelines, providing accurate data for process management.

As a Class 1500 flange, it is rated for high-pressure applications, typically supporting pressures up to 1500 psi at ambient temperatures, though the actual rating may vary based on temperature and specific material used.

ASME B16.36 class 1500 welding neck orifice flange drawing

ASME B16.36 class 1500 welding neck orifice flange drawing

Nominal Pipe Size Outside Diameter of Raised Face Outside Diameter of Flange Minumun Thickness of Flange Length Through Hub Welding Neck Ring-Type joint Diameter of Hub Hub Diameter Beginning of Chamfer Bore Diameter of Pressure Connection Drilling Template Length of Stud Bolts(2),(3)
R O tf Y Groove Number Pitch Diameter,P Groove Depth,E Groove Width,F Radius ar Bottom,r Special Oval Ring Height,W X A B TT Diameter of Bolt Circle Number of Holes Diameter of Holes Diameter of Bolts Raised Face Ring Joint
1 2.00 5.88 1.50 3.25 R16 2.000 0.250 0.344 0.03 1.00 2.06 1.32 To be specified by the purchaser ¼ 4.00 4 1.00 7/8 6.00 6.25
1½ 2.88 7.00 1.50 3.50 R20 2.688 0.250 0.344 0.03 1.00 2.75 1.90 ¼ 4.88 4 1.12 1 6.25 6.50
2 3.62 8.50 1.50 4.00 R24 3.750 0.312 0.469 0.03 1.06 4.12 2.38 ¼ 6.50 8 1.00 7/8 6.00 6.50
2½ 4.12 9.62 1.62 4.12 R27 4.250 0.312 0.469 0.03 1.06 4.88 2.88 ¼ 7.50 8 1.12 1 6.50 7.00
3 5.00 10.50 1.88 4.62 R35 5.375 0.312 0.469 0.03 1.06 5.25 3.50 ⅜ 8.00 8 1.25 1⅛ 7.25 7.25
4 6.19 12.25 2.12 4.88 R39 6.375 0.312 0.469 0.03 1.06 6.38 4.50 ½ 9.50 8 1.38 1¼ 8.00 8.50
6 8.50 15.50 3.25 6.75 R46 8.312 0.375 0.531 0.06 1.12 9.00 6.63 ½ 12.50 12 1.50 13/8 10.50 11.00
8 10.62 19.00 3.62 8.38 R50 10.625 0.438 0.656 0.06 1.31 11.50 8.63 ½ 15.50 12 1.75 15/8 11.75 12.25
10 12.75 23.00 4.25 10.00 R54 12.750 0.438 0.656 0.06 1.31 14.50 10.75 ½ 19.00 12 2.00 17/8 13.50 14.00
12 15.00 26.50 4.88 11.12 R58 15.000 0.562 0.906 0.06 1.56 17.75 12.75 ½ 22.50 16 2.12 2 15.00 15.75
14 16.25 29.50 5.25 11.75 R63 16.500 0.625 1.062 0.09 1.75 19.50 14.00 ½ 25.00 16 2.38 2¼ 16.25 17.50
16 18.50 32.50 5.75 12.25 R67 18.500 0.688 1.188 0.09 2.00 21.75 16.00 ½ 27.75 16 2.62 2½ 17.75 19.00
18 21.00 36.00 6.38 12.88 R71 21.000 0.688 1.188 0.09 2.00 23.50 18.00 ½ 30.50 16 2.88 2¾ 19.75 21.00
20 23.00 38.75 7.00 14.00 R75 23.000 0.688 1.312 0.09 2.12 25.25 20.00 ½ 32.75 16 3.12 3 21.50 22.50
24 27.25 46.00 8.00 16.00 R79 27.250 0.812 1.438 0.09 2.31 30.00 24.00 ½ 39.00 16 3.62 3½ 24.50 26.00

GENERAL NOTES:
(a)Dimensions are in inches.
(b)All other dimensions are in accordance with ASME B16.5.
(c)Ring joint flanges larger than NPS 6 will require angular meter taps shown in Fig.2.

Fig.2 Angular Meter Tap for RTJ Flanges

Fig.2 Angular Meter Tap for RTJ Flanges

NOTES:
(1)Other NPT sizes may be fumished if required.
(2)In conformance with ASME B16.5,stud bolt lengths do not include point heights.
(3)Bolt lengths for raised face flanges include allowance for orifice and gasket thickness of 0.25 in.for NPS 1 to NPS 12 and 0.38 in.for NPS 14 to NPS 24.Bolt lengths for ring-type joint flanges include allowance of 0.62 in.for NPS 1 to NPS 6.

ASME B16.36 Class 1500 welding neck orifice flanges are available in a variety of materials to suit different operating environments, including:

  • Carbon steel (e.g., ASTM A105)
  • Stainless steel (e.g., ASTM A182 F304, F316)
  • Alloy steels for more extreme environments, including high-temperature or corrosive conditions.

Material selection is based on factors such as temperature, pressure, and the chemical nature of the fluid being processed.

ASME B16.36 class 1500 welding neck orifice flanges are used in industries that require high-pressure fluid control and flow measurement, including:

  • Oil and gas (e.g., refineries, pipelines)
  • Petrochemical and chemical processing
  • Power generation
  • Water treatment

They are particularly suited for high-pressure systems that need reliable and accurate flow measurement of liquids, gases, or steam.

Haihao Group can provide a variety orifice flange,as follows:

Haihao Group manufacture & supply & export pipeline products more than 30 years,which contain butt welding pipe fittings(elbows,tees,reducers,caps,bends,crosses,etc),forged pipe fittings(socket weld/threaded elbows, tees, reducers, crosses, couplings, union, outlet, nipple, etc),steel pipes(seamless steel pipes, SAW/ERW steel pipes, casing and tubing pipes,etc) and forged flanges(weld neck flange, slip on flange, blind flange, lap joint flange, plate flange, threaded flange, socket weld flange, orifice flange, spectacle blind flange, weld overlay cladding flange,etc).We supply the products in different standards such as ANSI/ASME, ASTM, BS, EN, JIS, GOST, ISO, MSS, etc.If you want to know more about our pipeline products,please email us:sales@haihaogroup.com

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