Dinesh Industries > ASME B16.5 Flat Face Flange

ASME B16.5 Flat Face Flange

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ASME B16.5 flat face flange is one of the many different flanges made in different material grades and under different standards. The flat face flanges are used for different purpose such as closing a pipeline, welding with another flange and to connecting two pipes together. Dinesh Industries is a supplier of different flat face flange dimensions along with different material grades. The flat flange has flat faces to allow for maximum contact with the other component that is being connected  with or via the flange in a piping application.

ASME B16.5 Flat Face Flange

Check ANSI Slip On Flat Face Flange Dimensions, View Flat Face Weld Neck Flange Class & Size

The ASME B16.5 flat face flange can either have bolt holes in it for connection with bolts and nuts or be welded together with er component. There are different pressure classes of these flanges. They range from 150 to 2500 in pressure classes. The ANSI 150 flat face flange is one of the low pressure class flanges. Our Stainless steel flat face flange components are used in a variety of applications. We have manufactured and supplied carbon steel FF flange ANSI B16.5 for chemical, petrochemical, food processing, medical, marine and other industrial applications. Please contact us for further information on alloy steel flat flange and other products and pricing.

Specification Format of ASME B16.5 Flat Face Flange

Producty Type Flat Flanges
Size ½” to 48″
Pressure Class Ratings Class 1500, Class 150, Class 400, Class 900, Class 300, Class 2500, Class 600 | PN16, PN40, PN6, PN10, PN64, PN25
Specialize As per drawing
Standard ANSI B16.47, MSS SP44, ANSI B16.5, ANSI B16.36, ANSI B16.48 ,JIS,DIN,BS4504,SABS1123,EN1092-1, UNI,AS2129,GOST-12820DIN : DIN2527, DIN2633, DIN2636, DIN2566, DIN2573, DIN2576, DIN2641, DIN2642, DIN2655, DIN2637, DIN2638, DIN2656, DIN2627,
DIN2628, DIN2629, DIN 2631, DIN2634, DIN2635, DIN2632, DIN2673B.S : BS1560, BS4504, BS4504 , BS10
Connection Type / Flange Face Type Flat Face, Large Male-Female, Ring Type Joint, Lap-Joint Face, Large Tongue & Groove, Raised Face, Small Male-Female, Small Tongue & Groove

The Flat Face flange has a gasket surface in the same plane as the bolting circle face. Flat face flanges are frequently used in which the mating flange or flanged fitting is made from a casting.

ANSI 150 Flat Face Flange Dimensions Chart

ANSI 150 Flat Face Flange

Nominal Pipe Size Diameter of Pipe Flange I.D No. of holes Flange Dia Thk of Flange Dia of Bolt Circle Dia of Bolt Holes Approx.Weight
DN ISO DIN D5 BN D b K d2 KG/PCS
10 14 14.5 4 90 16 60 14 0.7
17.2 17.7 4 90 16 60 14 0.69
15 20 21 4 95 16 65 14 0.77
21.3 22 4 95 16 65 14 0.77
20 25 26 4 105 18 75 14 1.06
26.9 27.6 4 105 18 75 14 1.05
25 30 31 4 115 18 85 14 1.27
33.7 34.4 4 115 18 85 14 1.25
32 38 39 4 140 18 100 18 1.86
42.4 43.1 4 140 18 100 18 1.83
40 44.5 45.5 4 150 18 110 18 2.12
48.3 49 4 150 18 110 18 2.09
50 57 58.1 4 165 20 125 18 2.78
60.3 61.1 4 165 20 125 18 2.74
65 76.1 77.1 8 185 22 145 18 3.48
80 88.9 90.3 8 200 24 160 18 4.33
100 108 109.6 8 235 24 190 22 5.82
114.3 115.9 8 235 24 190 22 5.61
125 133 134.8 8 270 26 220 26 7.91
139.7 141.6 8 270 26 220 26 7.6
150 159 161.1 8 300 28 250 26 10.12
168.3 170.5 8 300 28 250 26 9.58
175 193.7 196.1 12 350 32 295 30 14.45
200 219.1 221.8 12 375 34 320 30 16.9
250 267 270.2 12 450 38 385 33 27.28
273 276.2 12 450 38 385 33 26.51
300 323.9 327.6 16 515 42 450 33 36.38
350 355.6 359.7 16 580 46 510 36 52.83
368 372.2 16 580 46 510 36 50.24
400 406.4 411 16 660 50 585 39 74.71
419 423.7 16 660 50 585 39 71.44
500 508 513.6 20 755 52 670 42 86.87
600 610 616.5 20 890 54 795 48 121.84
700 711 716 24 995 58 900 48 150.93
800 813 818 24 1140 64 1030 56 219.08
900 914 920 28 1250 70 1140 56 271.16
1000 1016 1022 28 1360 78 1250 56 344.95

Manufacturing Materials of ANSI B16.5 Flat Pipe Flanges

Dimensions Base Material
ASME B16.5 ASTM A182 (Forgings) ASTM A240 (Plate)
API 605 ASTM A182 (Forgings) ASTM A240 (Plate)
BS10 BS970 (Bar)ASTM A240 (Plate) ASTM A182 (Forgings)
EN1092-1 ASTM A182 (Forgings)
BS4504 BS970 (Bar)ASTM A240 (Plate) ASTM A182 (Forgings)
ASME B16.47series A & B ASTM A182 (Forgings) ASTM A240 (Plate)