ASME B16.36 Class 300 Orifice Flanges,Welding Neck,Threaded,and Slip-On Dimensions

Haihao Group manufacture & supply orifice flanges according to ASME B16.36-2015 standard,the product material can be carbon steel,stainless steel,alloy steel.The nominal size for orifice flanges are 1″-24″.

1inch SS304 RF Orifice Flange

1inch SS304 RF Orifice Flange

ASME B16.36-2015 Class 300 Orifice Flanges,Welding Neck,Threaded,and Slip-On Dimensions

ASME B16.36 2015 Class 300 Orifice Flanges Welding Neck Threaded and Slip On

ASME B16.36 2015 Class 300 Orifice Flanges Welding Neck Threaded and Slip On

Nominal Pipe Size Outside Diameter of Raised Face,R Outside Diameter of Flange,O Minimum Thickness of Flange,tf Length Through Hub Diameter of Hub,X Hub Diameter Beginning of Chamfer(W.N.),A Diameter of Counterbore Counterbore Depth(From Face) Bore  

Diameter of Pressure Connection,
TT

Drilling Template Bolt Length[(3),(4)]
in millimeters in inches in millimeters in inches in millimeters in inches Slip-On and Threaded,Y2

in millimeters

Slip-On and Threaded,Y2

in inches

Weld Neck,Y1

in millimeters

Weld Neck,Y1

in inches

in millimeters in inches in millimeters in inches Back,QB

in millimeters

Back,QB

in inches

Face,QF

in millimeters

Face,QF

in inches

F

in millimeters

F

in inches

G

in millimeters

G

in inches

Slip-On,B2

in millimeters

Slip-On,B2

in inches

Weld Neck,B1 in millimeters in inches Bolt Circle

in millimeters

Bolt Circle

in inches

Number of Holes Diameter of Holes Diameter of Bolts Machine Bolts

in millimeters

Machine Bolts

in inches

Stud Bolts

in millimeters

Stud Bolts

in inches

1 50.8 2.00 125 4.88 36.6 1.44 46 1.81 81 3.19 54 2.12 33.4 1.32 35.8 1.41 33.0 1.30 36.5 1.44 19.0 0.75 34.5 1.36 See Note (5). 6.4 1/4 88.9 3.50 4 11/16 5/8 115 4.50 125 5.00
73.0 2.88 155 6.12 36.6 1.44 46 1.81 84 3.31 70 2.75 48.3 1.90 50.5 1.99 48.0 1.89 37.3 1.47 18.3 0.72 49.5 1.95 6.4 1/4 114.3 4.50 4 13/16 3/4 120 4.75 135 5.25
2 92.1 3.62 165 6.50 36.6 1.44 48 1.88 84 3.31 84 3.31 60.3 2.38 63.5 2.50 59.9 2.36 38.1 1.50 17.5 0.69 61.9 2.44 6.4 1/4 127.0 5.00 8 11/16 5/8 115 4.50 125 5.00
104.8 4.12 190 7.50 36.6 1.44 49 1.94 87 3.44 100 3.94 73.0 2.88 76.2 3.00 72.1 2.84 44.4 1.75 14.3 0.56 74.6 2.94 6.4 1/4 149.2 5.88 8 13/16 3/4 120 4.75 135 5.25
3 127.0 5.00 210 8.25 36.6 1.44 51 2.00 87 3.44 117 4.62 88.9 3.50 92.2 3.63 87.9 3.46 46.0 1.81 14.3 0.56 90.7 3.57 9.5 3/8 168.3 6.62 8 13/16 3/4 120 4.75 135 5.25
4 157.2 6.19 255 10.00 36.6 1.44 52 2.06 90 3.56 146 5.75 114.3 4.50 117.6 4.63 113.0 4.45 47.6 1.88 14.3 0.56 116.1 4.57 12.7 1/2 200.0 7.88 8 13/16 3/4 120 4.75 135 5.25
6 215.9 8.50 320 12.50 36.6 1.44 52 2.06 98 3.88 206 8.12 168.3 6.63 171.4 6.75 166.9 6.75 47.6 1.88 7.9 0.31 170.7 6.72 12.7 1/2 269.9 10.62 12 7/8 3/4 120 4.75 135 5.25
8 269.9 10.62 380 15.00 39.7 1.56 60 2.38 110 4.31 260 10.25 219.1 8.63 222.2 8.75 217.2 8.75 55.6 2.19 11.1 0.44 221.5 8.72 12.7 1/2 330.2 13.00 12 1 7/8 125 5.00 145 5.75
10 323.8 12.75 445 17.50 46.1 1.81 65 2.56 116 4.56 321 12.62 273.0 10.75 (6) 276.2 10.88 12.7 1/2 387.4 15.25 16 11/8 1 145 5.75 165 6.50
12 381.0 15.00 520 20.50 49.3 1.94 71 2.81 129 5.06 375 14.75 323.8 12.75 327.0 12.88 12.7 1/2 450.8 17.75 16 11/4 11/8 160 6.25 180 7.00
14 412.8 16.25 585 23.00 52.4 2.06 75 2.94 141 5.56 425 16.75 355.6 14.00 359.2 14.14 12.7 1/2 514.4 20.25 20 11/4 11/8 165 6.50 185 7.25
16 469.9 18.50 650 25.50 55.6 2.19 81 3.19 144 5.69 483 19.00 406.4 16.00 410.5 16.16 12.7 1/2 571.5 22.50 20 13/8 11/4 180 7.00 195 7.75
18 533.4 21.00 710 28.00 58.8 2.31 87 3.44 157 6.19 533 21.00 457.0 18.00 461.8 18.18 12.7 1/2 628.6 24.75 24 13/8 11/4 185 7.25 205 8.00
20 584.2 23.00 775 30.50 62.0 2.44 94 3.69 160 6.31 587 23.12 508.0 20.00 513.1 20.20 12.7 1/2 685.8 27.00 24 13/8 11/4 190 7.50 215 8.50
24 692.2 27.25 915 36.00 68.3 2.69 105 4.12 167 6.56 702 27.62 610.0 24.00 616.0 24.25 12.7 1/2 812.8 32.00 24 15/8 11/2 210 8.25 240 9.50

GENERAL NOTES:

(a) Dimensions are in millimeters and inches,except for bolts and bolt holes. Reference Mandatory Appendix for U.S. Customary.

(b)Weld neck flangs NPS 3 and smaller are 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) For slip-on and threaded flanges,verify that TT drilling extends to inside diameter of pipe after assembly and is free from burrs.

(3) Bolt lengths include allowance for orifice and gasket thickness of 6 mm(0.25 in.) for NPS 1-12 and 10mm(0.38 in.) for NPS 14-24.

(4) In conformance with ASME B16.5,stud bolt lengths do not include point heights.

(5) Bore diameter of weld neck flanges is to be specified by the purchaser.

(6) Threaded flanges are furnished in NPS 1-8 only.

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