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Blind Flange Dimensions (Cl. 150/300/900/1500/2500)

The charts show the dimensions of blind flange class 150, 300, 400, 900, 1500, 2500 in inches and in millimeters.

BLIND FLANGE DIMENSIONS IN INCHES

BLIND CLASS 150 (IN INCH)

Blind flange dimensions class 150 in inches

Blind Flange Dimension ASME B16.5

FLANGE
NPS
Outside
Diameter
Bolt Circle (BC) Raised Face (R) Raised Face (RF) Raised Face
Thickness (T)
Flat Face
Thickness (T2)
Bolt Hole (B) No. of
Bolt Holes
1/2″ 3.50″ 2.38″ 1.38″ .063″ .44″ .38″ .62″ 4
3/4″ 3.88″ 2.75″ 1.69″ .063″ .50″ .44″ .62″ 4
1″ 4.25″ 3.12″ 2.00″ .063″ .56″ .50″ .62″ 4
1-1/4″ 4.62″ 3.50″ 2.50″ .063″ .62″ .56″ .62″ 4
1-1/2″ 5.00″ 3.88″ 2.88″ .063″ .68″ .62″ .62″ 4
2″ 6.00″ 4.75″ 3.62″ .063″ .75″ .69″ .75″ 4
2-1/2″ 7.00″ 5.50″ 4.12″ .063″ .88″ .82″ .75″ 4
3″ 7.50″ 6.00″ 5.00″ .063″ .94″ .88″ .75″ 4
3-1/2″ 8.50″ 7.00″ 5.50″ .063″ .94″ .88″ .75″ 8
4″ 9.00″ 7.50″ 6.19″ .063″ .94″ .88″ .75″ 8
5″ 10.00″ 8.50″ 7.31″ .063″ .94″ .88″ .88″ 8
6″ 11.00″ 9.50″ 8.50″ .063″ 1.00″ .94″ .88″ 8
8″ 13.50″ 11.75″ 10.62″ .063″ 1.12″ 1.06″ .88″ 8
10″ 16.00″ 14.25″ 12.75″ .063″ 1.19″ 1.13″ 1.00″ 12
12″ 19.00″ 17.00″ 15.00″ .063″ 1.25″ 1.19″ 1.00″ 12
14″ 21.00″ 18.75″ 16.25″ .063″ 1.38″ 1.32″ 1.12″ 12
16″ 23.50″ 21.25″ 18.50″ .063″ 1.44″ 1.38″ 1.12″ 16
18″ 25.00″ 22.75″ 21.00″ .063″ 1.56″ 1.50″ 1.25″ 16
20″ 27.50″ 25.00″ 23.00″ .063″ 1.69″ 1.63″ 1.25″ 20
22″ 29.50″ 27.25″ 25.25″ .063″ 1.81″ 1.75″ 1.38″ 20
24″ 32.00″ 29.50″ 27.25″ .063″ 1.88″ 1.82″ 1.38″ 20

BLIND CLASS 300 (IN INCH)

Blind flange dimensions class 300 in inches

Blind Flange Dimension ASME B16.5

FLANGE
NPS
Outside
Diameter
Bolt Circle (BC) Raised Face (R) Raised Face (RF) Raised Face
Thickness (T)
Flat Face
Thickness (T2)
Bolt Hole (B) No. of
Bolt Holes
1/2″ 3.75″ 2.62″ 1.38″ .063″ 0.56″ 0.50″ 0.62″ 4
3/4″ 4.62″ 3.25″ 1.69″ .063″ 0.62″ .056″ 0.75″ 4
1″ 4.88″ 3.50″ 2.00″ .063″ 0.69″ 0.63″ 0.75″ 4
1-1/4″ 5.25″ 3.88″ 2.50″ .063″ 0.75″ 0.69″ 0.75″ 4
1-1/2″ 6.12″ 4.50″ 2.88″ .063″ 0.81″ 0.75″ 0.88″ 4
2″ 6.50″ 5.00″ 3.62″ .063″ 0.88″ 0.82″ 0.75″ 8
2-1/2″ 7.50″ 5.88″ 4.12″ .063″ 1.00″ 0.94″ 0.88″ 8
3″ 8.25″ 6.62″ 5.00″ .063″ 1.12″ 1.06″ 0.88″ 8
3-1/2″ 9.00″ 7.25″ 5.50″ .063″ 1.19″ 1.13″ 0.88″ 8
4″ 10.00″ 7.88″ 6.19″ .063″ 1.25″ 1.19″ 0.88″ 8
5″ 11.00″ 9.25″ 7.31″ .063″ 1.38″ 1.32″ 0.88″ 8
6″ 12.50″ 10.62″ 8.50″ .063″ 1.44″ 1.38″ 0.88″ 12
8″ 15.00″ 13.00″ 10.62″ .063″ 1.62″ 1.56″ 1.00″ 12
10″ 17.50″ 15.25″ 12.75″ .063″ 1.88″ 1.82″ 1.12″ 16
12″ 20.50″ 17.75″ 15.00″ .063″ 2.00″ 1.94″ 1.25″ 16
14″ 23.00″ 20.25″ 16.25″ .063″ 2.12″ 2.06″ 1.25″ 20
16″ 25.50″ 22.50″ 18.50″ .063″ 2.25″ 2.19″ 1.38″ 20
18″ 28.00″ 24.75″ 21.00″ .063″ 2.38″ 2.32″ 1.38″ 24
20″ 30.50″ 27.00″ 23.00″ .063″ 2.50″ 2.44″ 1.38″ 24
22″ 33.00″ 29.25″ 25.25″ .063″ 2.63″ 2.57″ 1.63″ 24
24″ 36.00″ 32.00″ 27.25″ .063″ 2.75″ 2.69″ 1.62″ 24

BLIND CLASS 400 (IN INCH)

Blind flange dimensions class 400 in inches

Blind Flange Dimension ASME B16.5

FLANGE
NPS
Outside
Diameter
Bolt Circle (BC) Raised Face (R) Raised Face (RF) Raised Face
Thickness (T)
Flat Face
Thickness (T2)
Bolt Hole (B) No. of
Bolt Holes
1/2″ 3.75″ 2.62″ 0.12″ .250″ 0.81″ 0.56″ 0.62″ 4
3/4″ 4.62″ 3.25″ 0.12″ .250″ 0.87″ 0.62″ 0.75″ 4
1″ 4.88″ 3.50″ 0.12″ .250″ 0.94″ 0.69″ 0.75″ 4
1-1/4″ 5.25″ 3.88″ 0.19″ .250″ 1.06″ 0.81″ 0.75″ 4
1-1/2″ 6.12″ 4.50″ 0.25″ .250″ 1.13″ 0.88″ 0.88″ 4
2″ 6.50″ 5.00″ 0.31″ .250″ 1.25″ 1.00″ 0.75″ 8
2-1/2″ 7.50″ 5.88″ 0.31″ .250″ 1.37″ 1.12″ 0.88″ 8
3″ 8.25″ 6.62″ 0.38″ .250″ 1.50″ 1.25″ 0.88″ 8
3-1/2″ 9.00″ 7.25″ 0.38″ .250″ 1.63″ 1.38″ 1.00″ 8
4″ 10.00″ 7.88″ 0.44″ .250″ 1.63″ 1.38″ 1.00″ 8
5″ 11.00″ 9.25″ 0.44″ .250″ 1.75″ 1.50″ 1.00″ 8
6″ 12.50″ 10.62″ 0.50″ .250″ 1.87″ 1.62″ 1.00″ 12
8″ 15.00″ 13.00″ 0.50″ .250″ 2.13″ 1.88″ 1.12″ 12
10″ 17.50″ 15.25″ 0.50″ .250″ 2.37″ 2.12″ 1.25″ 16
12″ 20.50″ 17.75″ 0.50″ .250″ 2.50″ 2.25″ 1.38″ 16
14″ 23.00″ 20.25″ 0.50″ .250″ 2.63″ 2.38″ 1.38″ 20
16″ 25.50″ 22.50″ 0.50″ .250″ 2.75″ 2.50″ 1.50″ 20
18″ 28.00″ 24.75″ 0.50″ .250″ 2.87″ 2.62″ 1.50″ 24
20″ 30.50″ 27.00″ 0.50″ .250″ 3.00″ 2.75″ 1.62″ 24
22″ 33.00″ 29.25″ 0.50″ .250″ 3.13″ 2.88″ 1.75″ 24
24″ 36.00″ 32.00″ 0.50″ .250″ 3.25″ 3.00″ 1.88″ 24

BLIND CLASS 600 (IN INCH)

Blind flange dimensions class 600 in inches

Blind Flange Dimension ASME B16.5

FLANGE
NPS
Outside
Diameter
Bolt Circle (BC) Raised Face (R) Raised Face (RF) Raised Face
Thickness (T)
Flat Face
Thickness (T2)
Bolt Hole (B) No. of
Bolt Holes
1/2″ 3.75″ 2.62″ 1.38″ .250″ 0.81″ 0.56″ 0.62″ 4
3/4″ 4.62″ 3.25″ 1.69″ .250″ 0.87″ 0.62″ 0.75″ 4
1″ 4.88″ 3.50″ 2.00″ .250″ 0.94″ 0.69″ 0.75″ 4
1-1/4″ 5.25″ 3.88″ 2.50″ .250″ 1.06″ 0.81″ 0.75″ 4
1-1/2″ 6.12″ 4.50″ 2.88″ .250″ 1.13″ 0.88″ 0.88″ 4
2″ 6.50″ 5.00″ 3.62″ .250″ 1.25″ 1.00″ 0.75″ 8
2-1/2″ 7.50″ 5.88″ 4.12″ .250″ 1.37″ 1.12″ 0.88″ 8
3″ 8.25″ 6.62″ 5.00″ .250″ 1.50″ 1.25″ 0.88″ 8
3-1/2″ 9.00″ 7.25″ 5.50″ .250″ 1.63″ 1.38″ 1.00″ 8
4″ 10.75″ 8.50″ 6.19″ .250″ 1.75″ 1.5″ 1.00″ 8
5″ 13.00″ 10.50″ 7.31″ .250″ 2.00″ 1.75″ 1.12″ 8
6″ 14.00″ 11.50″ 8.50″ .250″ 2.13″ 1.88″ 1.12″ 12
8″ 16.50″ 13.75″ 10.62″ .250″ 2.44″ 2.19″ 1.25″ 12
10″ 20.00″ 17.00″ 12.75″ .250″ 2.75″ 2.50″ 1.38″ 16
12″ 22.00″ 19.25″ 15.00″ .250″ 2.87″ 2.62″ 1.38″ 20
14″ 23.75″ 20.75″ 16.25″ .250″ 3.00″ 2.75″ 1.50″ 20
16″ 27.00″ 23.75″ 18.50″ .250″ 3.25″ 3.00″ 1.62″ 20
18″ 29.25″ 25.75″ 21.00″ .250″ 3.50″ 3.25″ 1.75″ 20
20″ 32.00″ 28.50″ 23.00″ .250″ 3.75″ 3.50″ 1.75″ 24
22″ 34.25″ 30.63″ 25.25″ .250″ 4.00″ 3.75″ 1.75″ 24
24″ 37.00″ 33.00″ 27.25″ .250″ 4.25″ 4.00″ 2.00″ 24

BLIND CLASS 900 (IN INCH)

Blind flange dimensions class 900 in inches

Blind Flange Dimension ASME B16.5

FLANGE
NPS
Outside
Diameter
Bolt Circle (BC) Raised Face (R) Raised Face (RF) Raised Face
Thickness (T)
Flat Face
Thickness (T2)
Bolt Hole (B) No. of
Bolt Holes
3″ 9.50″ 7.50″ 5.00″ .250″ 1.75″ 1.50″ 1.00″ 8
4″ 11.50″ 9.25″ 6.19″ .250″ 2.00″ 1.75″ 1.25″ 8
5″ 13.75″ 11.00″ 7.31″ .250″ 3.25″ 3.00″ 1.38″ 8
6″ 15.00″ 12.50″ 8.50″ .250″ 2.44″ 2.19″ 1.25″ 12
8″ 18.50″ 15.50″ 10.63″ .250″ 2.75″ 2.50″ 1.50″ 12
10″ 21.50″ 18.50″ 12.75″ .250″ 3.00″ 2.75″ 1.50″ 16
12″ 24.00″ 21.00″ 15.00″ .250″ 3.38″ 3.13″ 1.50″ 20
14″ 25.25″ 22.00″ 16.25″ .250″ 3.63″ 3.38″ 1.63″ 20
16″ 27.75″ 24.25″ 18.50″ .250″ 3.75″ 3.50″ 1.75″ 20
18″ 31.00″ 27.00″ 21.00″ .250″ 4.25″ 4.00″ 2.00″ 20
20″ 33.75″ 29.50″ 23.00″ .250″ 4.50″ 4.25″ 2.13″ 20
24″ 41.00″ 35.50″ 27.25″ .250″ 5.75″ 5.50″ 2.63″ 20

BLIND CLASS 1500 (IN INCH)

Blind flange dimensions class 1500 in inches

Blind Flange Dimension ASME B16.5

Outside
Diameter
Bolt Circle (BC) Raised Face (R) Raised Face (RF) Raised Face
Thickness (T)
Flat Face
Thickness (T2)
Bolt Hole (B) No. of
Bolt Holes
4.75″ 3.25″ 1.38″ .250″ 1.13″ 0.88″ 0.88″ 4
5.13″ 3.50″ 1.69″ .250″ 1.25″ 1.00″ 0.88″ 4
5.88″ 4.00″ 2.00″ .250″ 1.38″ 1.13″ 1.00″ 4
6.25″ 4.38″ 2.50″ .250″ 1.38″ 1.13″ 1.00″ 4
7.00″ 4.88″ 2.88″ .250″ 1.50″ 1.25″ 1.13″ 4
8.50″ 6.50″ 3.63″ .250″ 1.75″ 1.50″ 1.00″ 8
9.63″ 7.50″ 4.13″ .250″ 1.88″ 1.63″ 1.13″ 8
10.50″ 8.00″ 5.00″ .250″ 2.13″ 1.88″ 1.25″ 8
12.25″ 9.50″ 6.19″ .250″ 2.38″ 2.13″ 1.38″ 8
14.75″ 11.50″ 7.31″ .250″ 3.13″ 2.88″ 1.63″ 8
15.50″ 12.50″ 8.50″ .250″ 3.50″ 3.25″ 1.50″ 12
19.00″ 15.50″ 10.63″ .250″ 3.88″ 3.63″ 1.75″ 12
23.00″ 19.00″ 12.75″ .250″ 4.50″ 4.25″ 2.00″ 12
26.50″ 22.50″ 15.00″ .250″ 5.13″ 4.88″ 2.13″ 16
29.50″ 25.00″ 16.25″ .250″ 5.50″ 5.25″ 2.38″ 16
32.50″ 27.75″ 18.50″ .250″ 6.00″ 5.75″ 2.63″ 16
36.00″ 30.50″ 21.00″ .250″ 6.63″ 6.38″ 2.88″ 16
38.75″ 32.75″ 23.00″ .250″ 7.25″ 7.00″ 3.13″ 16
46.00″ 39.00″ 27.25″ .250″ 8.25″ 8.00″ 3.63″ 16

BLIND CLASS 2500 (IN INCH)

Blind flange dimensions class 2500 in inches

Blind Flange Dimension ASME B16.5

FLANGE
NPS
Outside
Diameter
Bolt Circle (BC) Raised Face (R) Raised Face (RF) Raised Face
Thickness (T)
Flat Face
Thickness (T2)
Bolt Hole (B) No. of
Bolt Holes
1/2″ 5.25″ 3.50″ 1.38″ .250″ 1.44″ 1.19″ 0.88″ 4
3/4″ 5.50″ 3.75″ 1.69″ .250″ 1.50″ 1.25″ 0.88″ 4
1″ 6.25″ 4.25″ 2.00″ .250″ 1.63″ 1.38″ 1.00″ 4
1-1/4″ 7.25″ 5.13″ 2.50″ .250″ 1.75″ 1.50″ 1.13″ 4
1-1/2″ 8.00″ 5.75″ 2.88″ .250″ 2.00″ 1.75″ 1.25″ 4
2″ 9.25″ 6.75″ 3.63″ .250″ 2.25″ 2.00″ 1.13″ 8
2-1/2″ 10.50″ 7.75″ 4.13″ .250″ 2.50″ 2.25″ 1.25″ 8
3″ 12.00″ 9.00″ 5.00″ .250″ 2.88″ 2.63″ 1.38″ 8
4″ 14.00″ 10.75″ 6.19″ .250″ 3.25″ 3.00″ 1.63″ 8
5″ 16.50″ 12.75″ 7.31″ .250″ 3.88″ 3.63″ 1.88″ 8
6″ 19.00″ 14.50″ 8.50″ .250″ 4.50″ 4.25″ 2.13″ 8
8″ 21.75″ 17.25″ 10.63″ .250″ 5.25″ 5.00″ 2.13″ 12
10″ 26.50″ 21.25″ 12.75″ .250″ 6.75″ 6.50″ 2.63″ 12
12″ 30.00″ 24.38″ 15.00″ .250″ 7.50″ 7.25″ 2.88″ 12

BLIND FLANGE DIMENSIONS IN MILLIMETERS

BLIND CLASS 150 (IN INCH)

Blind flange dimensions class 150 in millimeters (ASME B16.5)

Blind flange dimensions ASME B16.5

Size
inch
D
mm
G
mm
t
mm
1/2 89 35.1 11.2
3/4 99 42.9 12.7
1 108 50.8 14.2
117 63.5 15.7
127 73.2 17.5
2 152 91.9 19.1
178 104.6 22.4
3 191 127.0 23.9
216 139.7 23.9
4 229 157.2 23.9
5 254 185.7 23.9
6 279 215.9 25.4
8 343 269.7 28.4
10 406 323.9 30.2
12 483 381.0 31.8
14 533 412.8 35.1
16 597 469.9 36.6
18 635 533.4 39.6
20 699 584.2 42.9
24 813 692.2 47.8

 

Size Bolts Drilling Bolting Requirements
inch Bolt circle
Diameter mm
Holes # Holes Dia. mm Bolt Dia. inch. Length
FF Flange
Length
RF Flange
Length
RTJ Flange
1/2 60.5 4 15.7 1/2 50.8 57.2
3/4 69.9 4 15.7 1/2 50.8 63.5
1 79.2 4 15.7 1/2 57.2 63.5 76.2
88.9 4 15.7 1/2 57.2 69.9 82.6
98.6 4 15.7 1/2 63.5 69.9 82.6
2 120.7 4 19.1 5/8 69.9 82.6 95.3
139.7 4 19.1 5/8 76.2 88.9 101.6
3 152.4 4 19.1 5/8 76.2 88.9 101.6
177.8 8 19.1 5/8 76.2 88.9 101.6
4 190.5 8 19.1 5/8 76.2 88.9 101.6
5 215.9 8 22.4 3/4 82.6 95.3 108.0
6 241.3 8 22.4 3/4 82.6 101.6 114.3
8 298.5 8 22.4 3/4 88.9 108.0 120.7
10 362.0 12 25.4 7/8 101.6 114.3 127.0
12 431.8 12 25.4 7/8 101.6 120.7 133.4
14 476.3 12 28.4 1 114.3 133.4 146.1
16 539.8 16 28.4 1 114.3 133.4 146.1
18 577.9 16 31.8 11/8 127.0 146.1 158.8
20 635.0 20 31.8 11/8 139.7 158.8 171.5
24 749.3 20 35.1 152.4 171.5 184.2

BLIND CLASS 300 (IN INCH)

Blind flange dimensions class 300 in millimeters (ASME B16.5)

Blind flange dimensions ASME B16.5

Size
inch
D
mm
G
mm
t
mm
1/2 95 35.1 14.2
3/4 117 42.9 15.7
1 124 50.8 17.5
133 63.5 19.1
155 73.2 20.6
2 165 91.9 22.4
191 104.6 25.4
3 210 127.0 28.4
229 139.7 30.2
4 254 157.2 31.8
5 279 185.7 35.1
6 318 215.9 36.6
8 381 269.7 41.1
10 445 323.9 47.8
12 521 381.0 50.8
14 584 412.8 63.8
16 648 469.9 57.2
18 711 533.4 60.5
20 775 584.2 63.5
24 914 692.2 69.9

 

Size Bolt Drilling Bolting Requirements
inch Bolt circle
Diameter mm
Holes # Holes Dia. mm Bolt Dia. inch. Length
FF Flange
Length
RF Flange
Length
RTJ Flange
1/2 66.5 4 15.7 1/2 57.2 63.5 76.2
3/4 82.6 4 19.1 5/8 63.5 76.2 88.9
1 88.9 4 19.1 5/8 63.5 76.2 88.9
98.6 4 19.1 5/8 69.9 82.6 95.3
114.3 4 22.4 3/4 76.2 88.9 101.6
2 127.0 8 19.1 5/8 76.2 88.9 101.6
149.4 8 22.4 3/4 82.6 101.6 114.3
3 168.1 8 22.4 3/4 88.9 108.0 120.7
184.2 8 22.4 3/4 95.3 108.0 127.0
4 200.2 8 22.4 3/4 95.3 114.3 127.0
5 235.0 8 22.4 3/4 108.0 120.7 133.4
6 269.7 12 22.4 3/4 108.0 120.7 139.7
8 330.2 12 25.4 7/8 120.7 139.7 152.4
10 387.4 16 28.4 1 139.7 158.8 171.5
12 450.9 16 31.8 11/8 146.1 171.5 184.2
14 514.4 20 31.8 11/8 158.8 177.8 190.5
16 571.5 20 35.1 165.1 190.5 203.2
18 628.7 24 35.1 171.5 196.9 209.6
20 685.8 24 35.1 184.2 203.2 222.3
24 812.8 24 41.1 203.2 228.6 254.0

BLIND CLASS 600 (IN INCH)

Blind flange dimensions class 600 in millimeters (ASME B16.5)

Blind flange dimensions ASME B16.5

Size
inch
D
mm
G
mm
t
mm
1/2 95 35.1 14.2
3/4 117 42.9 15.7
1 124 50.8 17.5
133 63.5 20.6
155 73.2 22.4
2 165 91.9 25.4
191 104.6 28.4
3 210 127.0 31.8
229 139.7 35.1
4 273 157.2 38.1
5 330 185.7 44.5
6 356 215.9 47.8
8 419 269.7 55.6
10 508 323.9 63.5
12 559 381.0 66.5
14 603 412.8 69.9
16 686 469.9 76.2
18 743 533.4 82.6
20 813 584.2 88.9
24 940 692.2 101.6

 

Size Bolts Drilling Bolting Requirements
inch Bolt circle
Diameter mm
Holes # Holes Dia. mm Bolt Dia. inch. Length
FF Flange
Length
RF Flange
Length
RTJ Flange
1/2 66.5 4 15.7 1/2 76.2 69.9 76.2
3/4 82.6 4 19.1 5/8 88.9 82.6 88.9
1 88.9 4 19.1 5/8 88.9 82.6 88.9
98.6 4 19.1 5/8 95.3 88.9 95.3
114.3 4 22.4 3/4 108.0 101.6 108.0
2 127.0 8 19.1 5/8 108.0 101.6 108.0
149.4 8 22.4 3/4 120.7 114.3 120.7
3 168.1 8 22.4 3/4 127.0 120.7 127.0
184.2 8 25.4 7/8 139.7 133.4 139.7
4 215.9 8 25.4 7/8 146.1 139.7 146.1
5 266.7 8 28.4 1 165.1 158.8 165.1
6 292.1 12 28.4 1 171.5 165.1 171.5
8 349.3 12 31.8 11/8 190.5 184.2 196.9
10 431.8 16 35.1 215.9 209.6 215.9
12 489.0 20 35.1 222.3 215.9 222.3
14 527.1 20 38.1 13/8 235.0 228.6 235.0
16 603.3 20 41.1 254.0 247.7 254.0
18 654.1 20 44.5 15/8 273.1 266.7 273.1
20 723.9 24 44.5 15/8 285.8 279.4 292.1
24 838.2 24 50.8 17/8 330.2 323.9 336.6

BLIND CLASS 900 (IN INCH)

Blind flange dimensions class 900 in millimeters (ASME B16.5)

Blind flange dimensions ASME B16.5

Size
inch
D
mm
G
mm
t
mm
1/2 121 35.1 22.4
3/4 130 42.9 25.4
1 149 50.8 28.4
159 63.5 28.4
178 73.2 31.8
2 216 91.9 38.1
244 104.6 41.1
3 241 127.0 38.1
4 292 157.2 44.5
5 349 185.7 50.8
6 381 215.9 55.6
8 470 269.7 63.5
10 546 323.9 69.9
12 610 381.0 79.2
14 641 412.8 85.9
16 705 469.9 88.9
18 787 533.4 101.6
20 857 584.2 108.0
24 1041 692.2 139.7

 

Size Bolt Drilling Bolting Requirements
inch Bolt circle
Diameter mm
Holes # Holes Dia. mm Bolt Dia. inch. Length
FF Flange
Length
RF Flange
Length
RTJ Flange
1/2 82.6 4 22.4 3/4 108.0 101.6 108.0
3/4 88.9 4 22.4 3/4 114.3 108.0 114.3
1 101.6 4 25.4 7/8 127.0 120.7 127.0
111.3 4 25.4 7/8 127.0 120.7 127.0
124.0 4 28.4 1 139.7 133.4 139.7
2 165.1 8 25.4 7/8 146.1 139.7 146.1
190.5 8 28.4 1 158.8 152.4 158.8
3 190.5 8 25.4 7/8 146.1 139.7 146.1
4 235.0 8 31.8 11/8 171.5 165.1 171.5
5 279.4 8 35.1 190.5 184.2 190.5
6 317.5 12 31.8 11/8 190.5 184.2 196.9
8 393.7 12 38.1 13/8 222.3 215.9 222.3
10 469.9 16 38.1 13/8 235.0 228.6 235.0
12 533.4 20 38.1 13/8 254.0 247.7 254.0
14 558.8 20 41.1 273.1 266.7 292.1
16 616.0 20 44.5 15/8 285.8 279.4 298.5
18 685.8 20 50.8 17/8 323.9 317.5 333.6
20 749.3 20 53.8 2 349.3 342.9 362.0
24 901.7 20 66.5 438.2 431.8 457.2

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