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Shri Parvati Industries
Shri Parvati Industries

Threaded Flanges

ANSI B 16.5 Class 150

ANSI B 16.5 Class 150


*All measurements in millimeters (mm)*

Pipe Flange Data Hub Data Raised Face Drilling Data Weight
A C D E F G H I J
Outside Dia 
In Mm		 Overall Dia
In Mm		 Flange Thickness min
In Mm		 Overall Length
In Mm		 Threaded Length min
In Mm		 Hub Dia
In Mm		 Face Dia 
In Mm		 Number of Holes Bolt Hole Dia
In Mm		 Dia of Circle of Holes
In Mm		 Kg/ Piece
½ 0.840 3.500 0.440 0.620 0.620 1.190 1.380 4 0.620 2.380 0.39
21.30 88.90 11.20 15.70 15.70 30.20 35.00 15.70 60.45
¾ 1.050 3.880 0.500 0.620 0.620 1.500 1.690 4 0.620 2.750 0.56
26.70 98.60 12.70 15.70 15.70 38.10 42.90 15.70 69.85
1 1.315 4.250 0.560 0.690 0.690 1.940 2.000 4 0.620 3.120 0.78
33.40 108.0 14.20 17.50 17.50 49.30 50.80 15.70 79.25
1 ¼ 1.660 4.620 0.620 0.810 0.810 2.310 2.500 4 0.620 3.500 1.03
42.20 117.3 15.70 20.60 20.60 58.70 63.50 15.70 88.90
1 ½ 1.900 5.000 0.690 0.880 0.880 2.560 2.880 4 0.620 3.880 1.32
48.30 127.0 17.50 22.40 22.40 65.00 73.15 15.70 98.60
2 2.375 6.000 0.750 1.000 1.000 3.060 3.620 4 0.750 4.750 2.06
60.30 152.4 19.10 25.40 25.40 77.70 91.90 19.10 120.7
2 ½ 2.875 7.000 0.880 1.120 1.120 3.560 4.120 4 0.750 5.500 3.28
73.00 177.8 22.40 28.40 28.40 90.40 104.6 19.10 139.7
3 3.500 7.500 0.940 1.190 1.190 4.250 5.000 4 0.750 6.000 3.85
88.90 190.5 23.90 30.20 30.20 108.0 127.0 19.10 152.4
3 ½ 4.000 8.500 0.940 1.250 1.250 4.810 5.500 8 0.750 7.000 4.81
101.6 215.9 23.90 31.75 31.75 122.2 139.7 19.10 177.8
4 4.500 9.000 0.940 1.310 1.310 5.310 6.190 8 0.750 7.500 5.30
114.3 228.6 23.90 33.30 33.30 134.9 157.2 19.10 190.5
5 5.563 10.00 0.940 1.440 1.440 6.440 7.310 8 0.880 8.500 6.07
141.3 254.0 23.90 36.60 36.60 163.6 185.7 22.40 215.9
6 6.625 11.00 1.000 1.560 1.560 7.560 8.500 8 0.880 9.500 7.45
168.3 279.4 25.40 39.60 39.60 192.0 215.9 22.40 241.3
8 8.625 13.50 1.120 1.750 1.750 9.690 10.62 8 0.880 11.75 12.1
219.1 342.9 28.40 44.50 44.50 246.1 269.7 22.40 298.5
10 10.75 16.00 1.190 1.940 1.940 12.00 12.75 12 1.000 14.25 16.5
273.0 406.4 30.20 49.30 49.30 304.8 323.8 25.40 362.0
12 12.75 19.00 1.250 2.190 2.190 14.38 15.00 12 1.000 17.00 26.2
323.8 482.6 31.75 55.60 55.60 365.3 381.0 25.40 431.8
14 14.00 21.00 1.380 2.250 2.250 15.75 16.25 12 1.120 18.75 34.6
355.6 533.4 35.10 57.15 57.15 400.1 412.7 28.40 476.3
16 16.00 23.50 1.440 2.500 2.500 18.00 18.50 16 1.120 21.25 44.8
406.4 596.9 36.60 63.50 63.50 475.2 469.9 28.40 539.8
18 18.00 25.00 1.560 2.690 2.690 19.88 21.00 16 1.250 22.75 48.9
457.2 635.0 39.60 68.30 68.30 505.0 533.4 31.75 577.9
20 20.00 27.50 1.690 2.880 2.880 22.00 23.00 20 1.250 25.00 61.9
508.0 698.5 42.90 73.15 73.15 558.8 584.2 31.75 635.0
24 24.00 32.00 1.880 3.250 3.250 26.12 27.25 20 1.380 29.50 86.9
  609.6 812.8 47.80 82.60 82.60 663.4 692.1 35.10 749.3  

Note :
The thread conforms to ASME B1. 20.1 NTP threads as described in Section 10. (The only exceptions are small male and female plain face threaded flanges which use NPSL locknut threads).

Class 300 and higher threaded flanges are counter-bored. Threads are chamfered to the counterbore at an angle of 450 (approx).

Weights are based on manufacturer's data and are approximate.

ANSI B 16.5 Class 300

ANSI B 16.5 Class 300

*All measurements in millimeters (mm)*


Pipe Flange Data Hub Data Raised Face Drilling Data Weight
A B C D E F G H I J
Outside Dia
In Mm		 Overall Dia
In Mm		 Counter Bore
In Mm		 Flange Thickness min 
In Mm		 Overall Length 
In Mm		 Threaded Length min
In Mm		 Hub Dia
In Mm		 Face Dia
In Mm		 Num
-ber of Holes		 Bolt Hole Dia
In Mm		 Dia of Circle of Holes
In Mm		 Kg/ Piece
½ 0.840 3.750 0.930 0.560 0.880 0.620 1.500 1.380 4 0.620 2.620 0.64
21.30 95.30 23.60 14.20 22.30 15.70 38.10 35.00 15.70 66.55
¾ 1.050 4.620 1.140 0.620 1.000 0.620 1.880 1.690 4 0.750 3.250 1.12
26.70 117.3 29.00 15.70 25.40 15.70 42.70 42.90 19.00 82.50
1 1.315 4.880 1.410 0.690 1.060 0.690 2.120 2.000 4 0.750 3.500 1.36
33.40 124.0 35.80 17.50 26.90 17.50 53.80 50.80 19.00 88.90
1 ¼ 1.660 5.250 1.750 0.750 1.060 0.810 2.500 2.500 4 0.750 3.880 1.68
42.20 133.4 44.40 19.00 26.90 20.60 63.50 63.50 19.00 98.50
1 ½ 1.900 6.120 1.990 0.810 1.190 0.880 2.750 2.880 4 0.880 4.500 2.49
48.30 155.4 50.50 20.60 30.20 22.30 69.85 73.15 22.30 114.3
2 2.375 6.500 2.500 0.880 1.310 1.120 3.310 3.620 8 0.750 5.000 2.87
60.30 165.1 63.50 22.30 33.20 28.40 84.00 91.90 19.00 127.0
2 ½ 2.875 7.500 3.000 1.000 1.500 1.250 3.940 4.120 8 0.880 5.880 4.32
73.00 190.5 76.20 25.40 38.10 31.70 100.0 104.6 22.30 149.3
3 3.500 8.250 3.630 1.120 1.690 1.250 4.620 5.000 8 0.880 6.620 5.85
88.90 209.6 92.20 28.40 42.90 31.70 117.3 127.0 22.30 168.1
3 ½ 4.000 9.000 4.130 1.190 1.750 1.440 5.250 5.500 8 0.880 7.250 7.34
101.6 228.6 104.9 30.20 44.40 36.50 133.3 139.7 22.30 184.1
4 4.500 10.00 4.630 1.250 1.880 1.440 5.750 6.190 8 0.880 7.880 9.61
114.3 254.0 117.6 31.70 47.70 36.50 146.0 157.2 22.30 200.1
5 5.563 11.00 5.690 1.380 2.000 1.690 7.000 7.310 8 0.880 9.250 12.3
141.3 279.4 144.5 35.00 50.80 42.90 177.8 185.7 22.30 234.9
6 6.625 12.50 6.750 1.440 2.060 1.810 8.120 8.500 12 0.880 10.62 15.6
168.3 317.5 171.4 36.50 52.30 45.90 206.2 215.9 22.30 269.7
8 8.625 15.00 8.750 1.620 2.440 2.000 10.25 10.62 12 1.000 13.00 24.2
219.1 381.0 222.3 41.10 61.90 50.80 260.3 269.7 25.40 330.2
10 10.75 17.50 10.88 1.880 2.620 2.190 12.62 12.75 16 1.120 15.25 34.1
273.0 444.5 276.3 47.70 66.55 55.60 320.5 323.8 28.40 387.3
12 12.75 20.50 12.94 2.000 2.880 2.380 14.75 15.00 16 1.250 17.75 49.8
323.8 520.7 328.7 50.80 73.15 60.45 374.6 381.0 31.70 450.8
14 14.00 23.00 14.19 2.120 3.000 2.500 16.75 16.25 20 1.250 20.25 69.9
355.6 584.2 360.4 53.80 76.20 63.50 425.4 412.7 31.70 514.3
16 16.00 25.50 16.19 2.250 3.250 2.690 19.00 18.50 20 1.380 22.50 88.1
406.4 647.7 411.2 57.15 82.50 68.30 482.6 469.9 35.00 571.5
18 18.00 28.00 18.19 2.380 3.500 2.750 21.00 21.00 24 1.380 24.75 109
457.2 711.2 462.0 60.45 88.90 69.85 533.4 533.4 35.00 628.6
20 20.00 30.50 20.19 2.500 3.750 2.880 23.12 23.00 24 1.380 27.00 134
508.0 774.7 512.8 63.50 95.2 73.15 587.2 584.2 35.00 685.8
24 24.00 36.00 24.19 2.750 4.190 3.250 27.62 27.25 24 1.620 32.00 201
609.6 914.4 614.4 69.85 106.4 82.50 701.5 692.1 41.10 812.8  

Note :
The thread conforms to ASME B1. 20.1 NTP threads as described in Section 10. (The only exceptions are small male and female plain face threaded flanges which use NPSL locknut threads).

Class 300 and higher threaded flanges are counter-bored. Threads are chamfered to the counterbore at an angle of 450 (approx).

Weights are based on manufacturer's data and are approximate.

ANSI B 16.5 Class 300

ANSI B 16.5 Class 300

*All measurements in millimeters (mm)*


Pipe Flange Data Hub Data Raised Face Drilling Data Weight
A B C D E F G H I J
Outside Dia
In Mm		 Overall Dia
In Mm		 Counter Bore
In Mm		 Flange Thickness min 
In Mm		 Overall Length 
In Mm		 Threaded Length min
In Mm		 Hub Dia
In Mm		 Face Dia
In Mm		 Num
-ber of Holes		 Bolt Hole Dia
In Mm		 Dia of Circle of Holes
In Mm		 Kg/ Piece
½ 0.840 3.750 0.930 0.560 0.880 0.620 1.500 1.380 4 0.620 2.620 0.64
21.30 95.30 23.60 14.20 22.30 15.70 38.10 35.00 15.70 66.55
¾ 1.050 4.620 1.140 0.620 1.000 0.620 1.880 1.690 4 0.750 3.250 1.12
26.70 117.3 29.00 15.70 25.40 15.70 42.70 42.90 19.00 82.50
1 1.315 4.880 1.410 0.690 1.060 0.690 2.120 2.000 4 0.750 3.500 1.36
33.40 124.0 35.80 17.50 26.90 17.50 53.80 50.80 19.00 88.90
1 ¼ 1.660 5.250 1.750 0.750 1.060 0.810 2.500 2.500 4 0.750 3.880 1.68
42.20 133.4 44.40 19.00 26.90 20.60 63.50 63.50 19.00 98.50
1 ½ 1.900 6.120 1.990 0.810 1.190 0.880 2.750 2.880 4 0.880 4.500 2.49
48.30 155.4 50.50 20.60 30.20 22.30 69.85 73.15 22.30 114.3
2 2.375 6.500 2.500 0.880 1.310 1.120 3.310 3.620 8 0.750 5.000 2.87
60.30 165.1 63.50 22.30 33.20 28.40 84.00 91.90 19.00 127.0
2 ½ 2.875 7.500 3.000 1.000 1.500 1.250 3.940 4.120 8 0.880 5.880 4.32
73.00 190.5 76.20 25.40 38.10 31.70 100.0 104.6 22.30 149.3
3 3.500 8.250 3.630 1.120 1.690 1.250 4.620 5.000 8 0.880 6.620 5.85
88.90 209.6 92.20 28.40 42.90 31.70 117.3 127.0 22.30 168.1
3 ½ 4.000 9.000 4.130 1.190 1.750 1.440 5.250 5.500 8 0.880 7.250 7.34
101.6 228.6 104.9 30.20 44.40 36.50 133.3 139.7 22.30 184.1
4 4.500 10.00 4.630 1.250 1.880 1.440 5.750 6.190 8 0.880 7.880 9.61
114.3 254.0 117.6 31.70 47.70 36.50 146.0 157.2 22.30 200.1
5 5.563 11.00 5.690 1.380 2.000 1.690 7.000 7.310 8 0.880 9.250 12.3
141.3 279.4 144.5 35.00 50.80 42.90 177.8 185.7 22.30 234.9
6 6.625 12.50 6.750 1.440 2.060 1.810 8.120 8.500 12 0.880 10.62 15.6
168.3 317.5 171.4 36.50 52.30 45.90 206.2 215.9 22.30 269.7
8 8.625 15.00 8.750 1.620 2.440 2.000 10.25 10.62 12 1.000 13.00 24.2
219.1 381.0 222.3 41.10 61.90 50.80 260.3 269.7 25.40 330.2
10 10.75 17.50 10.88 1.880 2.620 2.190 12.62 12.75 16 1.120 15.25 34.1
273.0 444.5 276.3 47.70 66.55 55.60 320.5 323.8 28.40 387.3
12 12.75 20.50 12.94 2.000 2.880 2.380 14.75 15.00 16 1.250 17.75 49.8
323.8 520.7 328.7 50.80 73.15 60.45 374.6 381.0 31.70 450.8
14 14.00 23.00 14.19 2.120 3.000 2.500 16.75 16.25 20 1.250 20.25 69.9
355.6 584.2 360.4 53.80 76.20 63.50 425.4 412.7 31.70 514.3
16 16.00 25.50 16.19 2.250 3.250 2.690 19.00 18.50 20 1.380 22.50 88.1
406.4 647.7 411.2 57.15 82.50 68.30 482.6 469.9 35.00 571.5
18 18.00 28.00 18.19 2.380 3.500 2.750 21.00 21.00 24 1.380 24.75 109
457.2 711.2 462.0 60.45 88.90 69.85 533.4 533.4 35.00 628.6
20 20.00 30.50 20.19 2.500 3.750 2.880 23.12 23.00 24 1.380 27.00 134
508.0 774.7 512.8 63.50 95.2 73.15 587.2 584.2 35.00 685.8
24 24.00 36.00 24.19 2.750 4.190 3.250 27.62 27.25 24 1.620 32.00 201
609.6 914.4 614.4 69.85 106.4 82.50 701.5 692.1 41.10 812.8  

Note :
The thread conforms to ASME B1. 20.1 NTP threads as described in Section 10. (The only exceptions are small male and female plain face threaded flanges which use NPSL locknut threads).

Class 300 and higher threaded flanges are counter-bored. Threads are chamfered to the counterbore at an angle of 450 (approx).

Weights are based on manufacturer's data and are approximate.

ANSI B 16.5 CLASS 600

ANSI B 16.5 CLASS 600

*All measurements in millimeters (mm)*


Pipe Flange Data Hub Data Raised Face Drilling Data Weight
A B C D E F G H I J
Outside Dia 
In Mm		 Overall Dia
In Mm		 Counter Bore
In Mm		 Flange Thickness min
In Mm		 Overall Length
In Mm		 Threaded Length min
In Mm		 Hub Dia 
In Mm		 Face Dia
In Mm		 Number of
Holes		 Bolt Hole Dia 
In Mm		 Dia of Circle of Holes
In Mm		 Kg/ Piece
½ 0.840 3.750 0.930 0.560 0.880 0.620 1.500 1.380 4 0.620 2.620 0.74
21.30 95.30 23.60 14.20 22.40 15.70 38.10 35.00 15.70 66.55
¾ 1.050 4.620 1.140 0.620 1.000 0.620 1.880 1.690 4 0.750 3.250 1.27
26.70 117.3 29.00 15.70 25.40 15.70 47.80 42.90 19.10 82.60
1 1.315 4.880 1.410 0.690 1.120 0.690 2.120 2.000 4 0.750 3.500 1.52
33.40 124.0 35.80 17.50 28.40 17.50 53.80 50.80 19.10 88.90
1 ¼ 1.660 5.250 1.750 0.810 1.120 0.810 2.500 2.500 4 0.750 3.880 2.03
42.20 133.4 44.40 20.60 28.40 20.60 63.50 63.50 19.10 98.60
1 ½ 1.900 6.120 1.990 0.880 1.250 0.880 2.750 2.880 4 0.880 4.500 2.96
48.30 155.4 50.50 22.40 31.75 22.40 69.85 73.15 22.40 114.3
2 2.375 6.500 2.500 1.000 1.440 1.120 3.310 3.620 8 0.750 5.000 3.62
60.30 165.1 63.50 25.40 36.60 28.40 84.10 91.90 19.10 127.0
2 ½ 2.875 7.500 3.000 1.120 1.620 1.250 3.940 4.120 8 0.880 5.880 5.28
73.00 190.5 76.20 28.40 41.10 31.75 100.1 104.6 22.40 149.4
3 3.500 8.250 3.630 1.250 1.810 1.380 4.620 5.000 8 0.880 6.620 7.00
88.90 209.6 92.20 31.75 46.00 35.10 117.3 127.0 22.40 168.1
3 ½ 4.000 9.000 4.130 1.380 1.940 1.560 5.250 5.500 8 1.000 7.250 8.84
101.6 228.6 104.9 35.10 49.30 39.60 133.4 139.7 25.40 184.2
4 4.500 10.75 4.630 1.500 2.120 1.620 6.000 6.190 8 1.000 8.500 14.5
114.3 273.1 117.6 38.10 53.80 41.10 152.4 157.2 25.40 215.9
5 5.563 13.00 5.690 1.750 2.380 1.880 7.440 7.310 8 1.120 10.50 24.4
141.3 330.2 144.5 44.50 60.45 47.80 189.0 185.7 28.40 266.7
6 6.625 14.00 6.750 1.880 2.620 2.000 8.750 8.500 12 1.120 11.50 28.7
168.3 355.6 171.4 47.80 66.55 50.80 222.3 215.9 28.40 292.1
8 8.625 16.50 8.750 2.190 3.000 2.250 10.75 10.62 12 1.250 13.75 43.4
219.1 419.1 222.3 55.60 76.20 57.15 273.1 269.7 31.75 349.3
10 10.75 20.00 10.88 2.500 3.380 2.560 13.50 12.75 16 1.380 17.00 70.3
273.0 508.0 276.3 63.50 85.90 65.00 342.9 323.8 35.10 431.8
12 12.75 22.00 12.94 2.620 3.620 2.750 15.75 15.00 20 1.380 19.25 84.2
323.8 558.8 328.7 66.55 91.90 69.85 400.1 381.0 35.10 489.0
14 14.00 23.75 14.19 2.750 3.690 2.880 17.00 16.25 20 1.500 20.75 98.7
355.6 603.3 360.4 69.85 93.70 73.15 431.8 412.7 38.10 527.1
16 16.00 27.00 16.19 3.000 4.190 3.060 19.50 18.50 20 1.620 23.75 142
406.4 685.8 411.2 76.20 106.4 77.70 495.3 469.9 41.10 603.3
18 18.00 29.25 18.19 3.250 4.620 3.120 21.50 21.00 20 1.750 25.75 173
457.2 743.0 462.0 82.60 117.3 79.25 546.1 533.4 44.50 654.1
20 20.00 32.00 20.19 3.500 5.000 3.250 24.00 23.00 24 1.750 28.50 220
508.0 812.8 512.8 88.90 127.0 82.60 609.6 584.2 44.50 723.9
24 24.00 37.00 24.19 4.000 5.500 3.620 28.25 27.25 24 2.000 33.00 312
  609.6 939.8 614.4 101.6 139.7 91.90 717.6 692.1 50.80 838.2  

Note :
The thread conforms to ASME B1. 20.1 NTP threads as described in Section 10. (The only exceptions are small male and female plain face threaded flanges which use NPSL locknut threads).

Class 300 and higher threaded flanges are counter-bored. Threads are chamfered to the counterbore at an angle of 450 (approx).

Weights are based on manufacturer's data and are approximate.

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