Dimensions of Class 150 RF Blind Flanges

All dimensions are in "mm" unless noted otherwise.

Dimensions of Class 150 RF Blind Flanges as per ASME B16.5.

Nominal OD of Thickness Dia of No of Dia of Dia of Dia of Approx

Pipe Flange of Flange Raised Bolt Bolt Bolt Bolt Weight
Size (D) (B) Face Holes Holes (inches) Circle (kg)
(G) (L) (K)

1/2 88.9 11.2 35.1 4 15.7 1/2 60.5 0.5

3/4 98.6 12.7 42.9 4 15.7 1/2 69.9 1

1 108 14.2 50.8 4 15.7 1/2 79.2 1

1-1/4 117.3 15.7 63.5 4 15.7 1/2 88.9 1

1-1/2 127 17.5 73.2 4 15.7 1/2 98.6 2

2 152.4 19.1 91.9 4 19.1 5/8 120.7 2

2-1/2 177.8 22.4 104.6 4 19.1 5/8 139.7 3

 3 190.5 23.9 127 4 19.1 5/8 152.4 4

3-1/2 215.9 23.9 139.7 8 19.1 5/8 177.8 6

4 228.6 23.9 157.2 8 19.1 5/8 190.5 8

5 254 23.9 185.7 8 22.4 3/4 215.9 9

6 279.4 25.4 215.9 8 22.4 3/4 241.3 12

8 342.9 28.4 269.7 8 22.4 3/4 298.5 20

10 406.4 30.2 323.9 12 25.4 7/8 362 32

12 482.6 31.8 381 12 25.4 7/8 431.8 50

14 533.4 35.1 412.8 12 28.4 1 476.3 64

16 596.9 36.6 469.9 16 28.4 1 539.8 82

18 635 39.6 533.4 16 31.8 1-1/8 577.9 100

20 698.5 42.9 584.2 20 31.8 1-1/8 635 129

24 812.8 47.8 692.2 20 35.1 1-1/4 749.3 195

Dimensions of Class 300 RF Blind Flanges
All dimensions are in "mm" unless noted otherwise.
Dimensions of Class 300 RF Blind Flanges as per ASME B16.5.

Nominal OD of Thickness Dia of No of Dia of Dia of Dia of Approx

Pipe Flange of Flange Raised Bolt Bolt Bolt Bolt Weight
Size (D) (B) Face Holes Holes (inches) Circle (kg)
(G) (L) (K)

1/2 95.3 14.2 35.1 4 15.7 1/2 66.5 1

3/4 117.3 15.7 42.9 4 19.1 1/2 82.6 1

1 124 17.5 50.8 4 19.1 1/2 88.9 1

1-1/4 133.4 19.1 63.5 4 19.1 1/2 98.6 2

1-1/2 155.4 20.6 73.2 4 22.4 1/2 114.3 3

2 165.1 22.4 91.9 8 19.1 5/8 127 4

2-1/2 190.5 25.4 104.6 8 22.4 5/8 149.4 5

 3 209.6 28.4 127 8 22.4 5/8 168.1 7

3-1/2 228.6 30.2 139.7 8 22.4 5/8 184.2 10

4 254 31.8 157.2 8 22.4 5/8 200.2 12

5 279.4 35.1 185.7 8 22.4 5/8 235 16

6 317.5 36.6 215.9 12 22.4 3/4 269.7 23

8 381 41.1 269.7 12 25.4 3/4 330.2 37

10 444.5 47.8 323.9 16 28.4 1 387.4 56

12 520.7 50.8 381 16 31.8 1-1/8 450.9 84

14 584.2 53.8 412.8 20 31.8 1-1/8 514.4 113

16 647.7 57.2 469.9 20 35.1 1-1/4 571.5 134

18 711.2 60.5 533.4 24 35.1 1-1/4 628.7 179

20 774.7 63.5 584.2 24 35.1 1-1/4 685.8 229

24 914.4 69.9 692.2 24 41.1 1-1/2 812.8 358

Dimensions of Class 600 RF Blind Flanges

All dimensions are in "mm" unless noted otherwise.
Dimensions of Class 600 RF Blind Flanges as per ASME B16.5.

Nominal OD of Thickness Dia of No of Dia of Dia of Dia of Approx

Pipe Flange of Flange Raised Bolt Bolt Bolt Bolt Weight
Size (D) (B) Face Holes Holes (inches) Circle (kg)
(G) (L) (K)

1/2 95.3 14.2 35.1 4 15.7 1/2 66.5 1

3/4 117.3 15.7 42.9 4 19.1 5/8 82.6 1

1 124 17.5 50.8 4 19.1 5/8 88.9 2

1-1/4 133.4 20.6 63.5 4 19.1 5/8 98.6 2

1-1/2 155.4 22.4 73.2 4 22.4 3/4 114.3 4

2 165.1 25.4 91.9 8 19.1 5/8 127 5

2-1/2 190.5 28.4 104.6 8 22.4 3/4 149.4 7

3 209.6 31.8 127 8 22.4 3/4 168.1 9

 3-1/2 228.6 35.1 139.7 8 25.4 7/8 184.2 13

4 273.1 38.1 157.2 8 25.4 7/8 215.9 19

5 330.2 44.5 185.7 8 28.4 1 266.7 31

6 355.6 47.8 215.9 12 28.4 1 292.1 39

8 419.1 55.6 269.7 12 31.8 1-1/8 349.3 64

10 508 63.5 323.9 16 35.1 1-1/4 431.8 104

12 558.8 66.5 381 20 35.1 1-1/4 489 134

14 603.3 69.9 412.8 20 38.1 1-3/8 527.1 161

16 685.8 76.2 469.9 20 41.1 1-1/2 603.3 225

18 743 82.6 533.4 20 44.5 1-5/8 654.1 286

20 812.8 88.9 584.2 24 44.5 1-5/8 723.9 367

24 939.8 101.6 692.2 24 50.8 1-7/8 838.2 567

Dimensions of Class 900 RF Blind Flanges

All dimensions are in "mm" unless noted otherwise.
Dimensions of Class 900 RF Blind Flanges as per ASME B16.5.

Nominal OD of Thickness Dia of No of Dia of Dia of Dia of Approx

Pipe Flange of Flange Raised Bolt Bolt Bolt Bolt Weight
Size (D) (B) Face Holes Holes (inches) Circle (kg)
(G) (L) (K)

1/2 120.7 22.4 35.1 4 22.4 3/4 82.6 2

3/4 130 25.4 42.9 4 22.4 3/4 88.9 3

1 149.4 28.4 50.8 4 25.4 7/8 101.6 4

1-1/4 158.8 28.4 63.5 4 25.4 1 111.3 4

1-1/2 177.8 31.8 73.2 4 28.4 1-1/8 124 6

2 215.9 38.1 91.9 8 25.4 1 165.1 11

2-1/2 244.3 41.1 104.6 8 28.4 1-1/8 190.5 16

3 241.3 38.1 127 8 25.4 7/8 190.5 13

 4 292.1 44.5 157.2 8 31.8 1-1/8 235 24

5 349.3 50.8 185.7 8 35.1 1-1/4 279.4 39

6 381 55.6 215.9 12 31.8 1-1/8 317.5 52

8 469.9 63.5 269.7 12 38.1 1-3/8 393.7 91

10 546.1 69.9 323.9 16 38.1 1-3/8 469.9 132

12 609.6 79.2 381 20 38.1 1-3/8 533.4 188

14 641.4 85.9 412.8 20 41.1 1-1/2 558.8 236

16 704.9 88.9 469.9 20 44.5 1-5/8 616 272

18 787.4 101.6 533.4 20 50.8 1-7/8 685.8 386

20 857.3 108 584.2 20 53.8 2 749.3 488

24 1041.4 139.7 692.2 20 66.5 2-1/2 901.7 919

Dimensions of Class 1500 RF Blind Flanges

All dimensions are in "mm" unless noted otherwise.
Dimensions of Class 1500 RF Blind Flanges as per ASME B16.5.
Nominal OD of Thickness Dia of No of Dia of Dia of Dia of Approx
Pipe Flange of Flange Raised Bolt Bolt Bolt Bolt Weight
Size (D) (B) Face Holes Holes (inches) Circle (kg)
(G) (L) (K)

1/2 120.7 22.4 35.1 4 22.4 3/4 82.6 2

3/4 130 25.4 42.9 4 22.4 3/4 88.9 3

1 149.4 28.4 50.8 4 25.4 7/8 101.6 4

1-1/4 158.8 28.4 63.5 4 25.4 1 111.3 4

1-1/2 177.8 31.8 73.2 4 28.4 1-1/8 124 6

2 215.9 38.1 91.9 8 25.4 1 165.1 11

2-1/2 244.3 41.1 104.6 8 28.4 1-1/8 190.5 16

3 266.7 47.8 127 8 31.8 1-1/4 203.2 22

4 311.2 53.8 157.2 8 35.1 1-1/2 241.3 33

 5 374.7 73.2 185.7 8 41.1 1-3/4 292.1 64

6 393.7 82.6 215.9 12 38.1 2 317.5 73

8 482.6 91.9 269.7 12 44.5 2 393.7 136

10 584.2 108 323.9 12 50.8 2-1/2 482.6 231

12 673.1 124 381 16 53.8 2-3/4 571.5 313

14 749.3 133.4 412.8 16 60.5 2-1/4 635 442

16 825.5 146.1 469.9 16 66.5 2-1/2 704.9 590

18 914.4 162.1 533.4 16 73.2 2-3/4 774.7 794

20 984.3 177.8 584.2 16 79.2 3 831.9 1009

24 1168.4 203.2 692.2 16 91.9 3-1/2 990.6 1644

Dimensions of Class 2500 RF Blind Flanges

All dimensions are in "mm" unless noted otherwise.
Dimensions of Class 2500 RF Blind Flanges as per ASME B16.5.
Nominal OD of Thickness Dia of No of Dia of Dia of Dia of Approx
Pipe Flange of Flange Raised Bolt Bolt Bolt Bolt Weight
Size (D) (B) Face Holes Holes (inches) Circle (kg)
(G) (L) (K)

1/2 133.4 30.2 35.1 4 22.4 3/4 88.9 3

3/4 139.7 31.8 42.9 4 22.4 3/4 95.3 4

1 158.8 35.1 50.8 4 25.4 7/8 108 5

1-1/4 184.2 38.1 63.5 4 28.4 1 130 8

1-1/2 203.2 44.5 73.2 4 31.8 1-1/8 146.1 10

2 235 50.8 91.9 8 28.4 1 171.5 18

2-1/2 266.7 57.2 104.6 8 31.8 1-1/8 196.9 25

3 304.8 66.5 127 8 35.1 1-1/4 228.6 39

4 355.6 76.2 157.2 8 41.1 1-1/2 273.1 61

5 419.1 91.9 185.7 8 47.8 1-3/4 323.9 102

6 482.6 108 215.9 8 53.8 2 368.3 156

8 552.5 127 269.7 12 53.8 2 438.2 240

10 673.1 165.1 323.9 12 66.5 2-1/2 539.8 465

12 762 184.2 381 12 73.2 2-3/4 619.3 590