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ASME B16.36 class 300 welding neck orifice flange

2024-09-26 16:37:15 Hits:36 American Standards / Product Standards

The ASME B16.36 class 300 welding neck orifice flange is a specialized component used in piping systems to measure fluid flow. These flanges are designed with pressure tap connections for use with an orifice plate, enabling flow measurement by creating a pressure drop across the plate.

ASME B16.36 class 300 welding neck orifice flange dimensions:

ASME B6.36 Class 300 Welding Neck Orifice Flange Drawing

ASME B6.36 Class 300 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 Diameter of Hub Hub Diameter Beginning of Chamfer Bore Diameter of Pressure Connection Drilling Template Bolt Length(3),(4)
R O tf Y1  X A B1 TT Bolt Circle Number of Holes Diameter of Holes Diameter of Bolts Machine Bolts Stud Bolts
1 2.00 4.88 1.44 3.19 2.12 1.32 To be specified by the purchaser ¼ 3.50 4 11/16 5/8 4.50 5.00
1½ 2.88 6.12 1.44 3.31 2.75 1.90 ¼ 4.50 4 13/16 3/4 4.75 5.25
2 3.62 6.50 1.44 3.31 3.31 2.38 ¼ 5.00 8 11/16 5/8 4.50 5.00
2½ 4.12 7.50 1.44 3.44 3.94 2.88 ¼ 5.88 8 13/16 3/4 4.75 5.25
3 5.00 8.25 1.44 3.44 4.62 3.50 ⅜ 6.62 8 13/16 3/4 4.75 5.25
4 6.19 10.00 1.44 3.56 5.75 4.50 ½ 7.88 8 13/16 3/4 4.75 5.25
6 8.50 12.50 1.44 3.88 8.12 6.63 ½ 10.62 12 7/8 3/4 4.75 5.25
8 10.62 15.00 1.56 4.31 10.25 8.63 ½ 13.00 12 1 7/8 5.00 5.75
10 12.75 17.50 1.81 4.56 12.62 10.75 ½ 15.25 16 1⅛ 1 5.75 6.50
12 15.00 20.50 1.94 5.06 14.75 12.75 ½ 17.75 16 1¼ 1⅛ 6.25 7.00
14 16.25 23.00 2.06 5.56 16.75 14.00 ½ 20.25 20 1¼ 1⅛ 6.50 7.25
16 18.50 25.50 2.19 5.69 19.00 16.00 ½ 22.50 20 1 3/8 1¼ 7.00 7.75
18 21.00 28.00 2.31 6.19 21.00 18.00 ½ 24.75 24 1 3/8 1¼ 7.25 8.00
20 23.00 30.50 2.44 6.31 23.12 20.00 ½ 27.00 24 1 3/8 1¼ 7.50 8.50
24 27.25 36.00 2.69 6.56 27.62 24.00 ½ 32.00 24 1 5/8 1½ 8.25 9.50

GENERAL NOTES:
(a)Dimensions are in inches.
(b)Welding neck flanges NPS 3 and smaller are dimensionally identical to Class 600 flanges and may be so marked.
(c)All other dimensions are in accordance with ASME B16.5.
NOTES:
(1)Other NPT sizes may be furnished if required.
(2)Bolt lengths 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.
(3)In conformance with ASME B16.5,stud bolt lengths do not include point heights.

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

The ASME B16.36 Class 300 welding neck orifice flange is an essential component for applications requiring accurate flow measurement, designed for durability and strength in demanding industrial environments.

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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