Threaded flange looks very similar to Slip On flange but the main difference is that the threaded flange has been was bored out to match a specific pipe inside diameter. The backside of this center opening is then threaded with the relevant-sized tapered pipe thread.

Threaded Flange can be used in very high pressure services and their major advantage is that they can be assembled without welding.

A threaded flange is a connecting device that can be secured to a length of pipe without welding. Using a tapered thread, the threaded flange is tightened onto the pipe without leaking, however, a seal weld is commonly used, when appropriate. The nature of the threaded connection makes the threaded flange a viable option when welding is not feasible, such as highly flammable or explosive areas. This flange is commonly used only on smaller diameter pipes.

In many refineries, manufacturing facilities and shipyards, the highly explosive nature of the materials being moved via pipeline prohibit welding. In this type of environment, the threaded flange is often a good choice when assembling pipelines. Using a tapered thread inside of the flange, the pipe is tapered on its exterior and is threaded into the threaded flange. As the two tapers become enmeshed, the flange joint becomes tight and leak-proof. If conditions exist that deem welding safe, a seal weld is occasionally placed around the junction of the pipe and flange.

Dimensions Threaded Flanges, ANSI CLASS 150, ASME B16.5, 1/16″ RAISED FACE (IN) DATASHEET

This datasheet is for flanges that have athreaded flanges that have a raised face end connection.  Additional in depth information about these kinds of flanges can be found on theRaised Face Flange page.

  • Dimensions and tolerances in accordance with ANSI/ASME B16.5 for sizes 1/2″ to 24″.
  • When using carbon steel, forgings to be in accordance with ASTM A105.
  • Flanges are tapped with American National Standard taper pipe threads.
  • Bolt circle diameters are 1/8 inch larger than bolt diameter.

data thdf b16.5 150data thdf b16.5

Pipe Size

(NPS)

Outside Diameter of Flange

A

Diameter of Raised Face

B

Thickness of Flange

C

Diameter of Hub at Base

J

Length of Hub

L

Minimum Thread Length

N

Number of Bolt Holes

 

Diameter of Bolt Holes

 

Bolt Circle Diameter

P

Approx. Weight

(Lbs.)

1/2 3 1/2 1 3/8 7/16 1 3/16 5/8 5/8 4 5/8 2 3/8 2
3/4 3 7/8 1 11/16 1/2 1 1/2 5/8 5/8 4 5/8 2 3/4 2
1 4 1/4 2 9/16 1 15/16 11/16 11/16 4 5/8 3 1/8 2
1 1/4 4 5/8 2 1/2 5/8 2 5/16 13/16 13/16 4 5/8 3 1/2 3
1 1/2 5 2 7/8 11/16 2 9/16 7/8 7/8 4 5/8 3 7/8 3
2 6 3 5/8 3/4 3 7/16 1 1 4 3/4 4 3/4 5
2 1/2 7 4 1/8 7/8 3 9/16 1 1/8 1 1/8 4 3/4 5 1/2 7
3 7 1/2 5 15/16 4 1/4 1 3/16 1 3/16 4 3/4 6 8
3 1/2 8 1/2 5 1/2 15/16 4 13/16 1 1/4 1 1/4 8 3/4 7 11
4 9 6 3/16 15/16 5 5/16 1 5/16 1 5/16 8 3/4 7 1/2 13
5 10 7 5/16 15/16 6 7/16 1 7/16 1 7/16 8 7/8 8 1/2 15
6 11 8 1/2 1 7 9/16 1 9/16 1 9/16 8 7/8 9 1/2 19
8 13 1/2 10 5/8 1 1/8 9 11/16 1 3/4 1 3/4 8 7/8 11 3/4 30
10 16 12 3/4 1 3/16 12 1 15/16 1 15/16 12 1 14 1/4 43
12 19 15 1 1/4 14 3/8 2 3/16 2 3/16 12 1 17 64
14 21 16 1/4 1 3/8 15 3/4 2 1/4 2 1/4 12 1 1/8 18 3/4 85
16 23 1/2 18 1/2 1 7/16 18 2 1/2 2 1/2 16 1 1/8 21 1/4 93
18 25 21 1 9/16 19 7/8 2 11/16 2 11/16 16 1 1/4 22 3/4 120
20 27 1/2 23 1 11/16 22 2 7/8 2 7/8 20 1 1/4 25 155
22 29 1/2 25 1/4 1 13/16 24 3 1/8 3 1/8 20 1 3/8 27 1/4 159
24 32 27 1/4 1 7/8 26 1/8 3 1/4 3 1/4 20 1 3/8 29 1/2 210

Dimensions Threaded Flanges, ANSI CLASS 150, ASME B16.5, 1/16″ RING TYPE JOINT (IN) DATASHEET

This datasheet is for flanges that have a ring type joint (RTJ) end connection.  Additional in depth information about these kinds of flanges can be found on the Ring Type Joint page.

  • Dimensions and tolerances in accordance with ANSI/ASME B16.5 for sizes 1/2″ to 24″.
  • ASME B1.20.1 – Pipe Threads, General Purpose, Inch
  • When using carbon steel, forgings to be in accordance with ASTM A105.
  • Flanges are tapped with American National Standard taper pipe threads.
  • Bolt circle diameters are 1/8 inch larger than bolt diameter.

Data thdf rjf b16.5 150Data rtj b16.5 150 2500

Pipe Size

(NPS)

Outside Diameter of Flange

A

Thickness of Flange

C

Diameter of Bore

E

Diameter of Hub at Base

J

Length of Hub

L

Diameter of Raised Face

T

Diameter of Groove

U

Groove Width

W

Groove Depth

X

Number of Bolt Holes

 

Diameter of Bolt Holes

 

Bolt Circle Diameter

P

1/2
3/4
1 4 1/4 1/2 1 15/16 11/16 11/16 2 1/2 1 7/8 11/32 1/4 4 5/8 3 1/8
1 1/4 4 5/8 9/16 2 5/16 13/16 13/16 2 7/8 2 1/4 11/32 1/4 4 5/8 3 1/2
1 1/2 5 5/8 2 9/16 7/8 7/8 3 1/4 2 9/16 11/32 1/4 4 5/8 3 7/8
2 6 11/16 3 1/16 1 1 4 3 1/4 11/32 1/4 4 3/4 4 3/4
2 1/2 7 13/16 3 9/16 1 1/8 1 1/8 4 3/4 4 11/32 1/4 4 3/4 5 1/2
3 7 1/2 7/8 4 1/4 1 3/16 1 3/16 5 1/4 4 1/2 11/32 1/4 4 3/4 6
3 1/2 8 1/2 7/8 4 13/16 1 1/4 1 1/4 6 1/16 5 3/16 11/32 1/4 8 3/4 7
4 9 7/8 5 5/16 1 5/16 1 5/16 6 3/4 5 7/8 11/32 1/4 8 3/4 7 1/2
5 10 7/8 6 7/16 1 7/16 1 7/16 7 5/8 6 3/4 11/32 1/4 8 7/8 8 1/2
6 11 15/16 7 9/16 1 9/16 1 9/16 8 5/8 7 5/8 11/32 1/4 8 7/8 9 1/2
8 13 1/2 1 1/16 9 11/16 1 3/4 1 3/4 10 3/4 9 3/4 11/32 1/4 8 7/8 11 3/4
10 16 1 1/8 12 1 15/16 1 15/16 13 12 11/32 1/4 12 1 14 1/4
12 19 1 3/16 14 3/8 2 3/16 2 3/16 16 15 11/32 1/4 12 1 17
14 21 1 5/16 15 3/4 2 1/4 2 1/4 16 3/4 15 5/8 11/32 1/4 12 1 1/8 18 3/4
16 23 1/2 1 3/8 18 2 1/2 2 1/2 19 17 7/8 11/32 1/4 16 1 1/8 21 1/4
18 25 1 1/2 19 7/8 2 11/16 2 11/16 21 1/2 20 3/8 11/32 1/4 16 1 1/4 22 3/4
20 27 1/2 1 5/8 22 2 7/8 2 7/8 23 1/2 22 11/32 1/4 20 1 1/4 25
22 29 1/2 1 3/4 24 3 1/8 3 1/8 25 1/2 24 1/4 11/32 1/4 20 1 3/8 27 1/4
24 32 1 13/16 26 1/8 3 1/4 3 1/4 28 26 1/2 11/32 1/4 20 1 3/8 29 1/2

Dimensions Threaded Flanges, ANSI CLASS 300, ASME B16.5, 1/16″ RAISED FACE (IN) DATASHEET

This datasheet is for flanges that have athreaded flanges that have a raised face end connection.  Additional in depth information about these kinds of flanges can be found on theRaised Face Flange page.

  • Dimensions and tolerances in accordance with ANSI/ASME B16.5 for sizes 1/2″ to 24″.
  • When using carbon steel, forgings to be in accordance with ASTM A105.
  • Flanges are tapped with American National Standard taper pipe threads.
  • Bolt circle diameters are 1/8 inch larger than bolt diameter.

data thdf b16.5 300data thdf b16.5

Pipe Size

(NPS)

Outside Diameter of Flange

A

Diameter of Raised Face

B

Thickness of Flange

C

Diameter of Hub at Base

J

Length of Hub

L

Minimum Thread Length

N

Diameter Bore

S

Number of Bolt Holes

 

Diameter of Bolt Holes

 

Bolt Circle Diameter

P

Approx. Weight

(Lbs.)

1/2 3 3/4 1 3/8 9/16 1 1/2 7/8 5/8 0.93 4 5/8 2 5/8 3
3/4 4 5/8 1 11/16 5/8 1 7/8 1 5/8 1.14 4 3/4 3 1/4 3
1 4 7/8 2 11/16 2 1/8 1 1/16 11/16 1.41 4 3/4 3 1/2 3
1 1/4 5 1/4 2 1/2 3/4 2 1/2 1 1/16 13/16 1.75 4 3/4 3 7/8 4
1 1/2 6 1/8 2 7/8 13/16 2 3/4 1 3/16 7/8 1.99 4 7/8 4 1/2 6
2 6 1/2 3 5/8 7/8 3 5/16 1 5/16 1 1/8 2.50 8 3/4 5 7
2 1/2 7 1/2 4 1/8 1 3 15/16 1 1/2 1 1/4 3.00 8 7/8 5 7/8 10
3 8 1/4 5 1 1/8 4 5/8 1 11/16 1 1/4 3.63 8 7/8 6 5/8 13
3 1/2 9 5 1/2 1 3/16 5 1/4 1 3/4 1 7/16 4.13 8 7/8 7 1/4 17
4 10 6 3/16 1 1/4 5 3/4 1 7/8 1 7/16 4.63 8 7/8 7 7/8 22
5 11 7 5/16 1 3/8 7 2 1 11/16 5.69 8 7/8 9 1/4 28
6 12 1/2 8 1/2 1 7/16 8 1/8 2 1/16 1 13/16 6.75 12 7/8 10 5/8 39
8 15 10 5/8 1 5/8 10 1/4 2 7/16 2 8.75 12 1 13 58
10 17 1/2 12 3/4 1 7/8 12 5/8 2 5/8 2 3/16 10.88 16 1 1/8 15 1/4 81
12 20 1/2 15 2 14 3/4 2 7/8 2 3/8 12.94 16 1 1/4 17 3/4 115
14 23 16 1/4 2 1/8 16 3/4 3 2 1/2 14.19 20 1 1/4 20 1/4 164
16 25 1/2 18 1/2 2 1/4 19 3 1/4 2 11/16 16.19 20 1 3/8 22 1/2 220
18 28 21 2 3/8 21 3 1/2 2 3/4 18.19 24 1 3/8 24 3/4 280
20 30 1/2 23 2 1/2 23 1/8 3 3/4 2 7/8 20.19 24 1 3/8 27 325
22 33 25 1/4 2 5/8 25 1/4 4 3 1/16 22.19 24 1 5/8 29 1/4 433
24 36 27 1/4 2 3/4 27 5/8 4 3/16 3 1/4 24.19 24 1 5/8 32 490

Dimensions Threaded Flanges, ANSI CLASS 300, ASME B16.5, 1/16″ RING TYPE JOINT (IN) DATASHEET

This datasheet is for flanges that have a ring type joint (RTJ) end connection.  Additional in depth information about these kinds of flanges can be found on the Ring Type Joint page.

  • Dimensions and tolerances in accordance with ANSI/ASME B16.5 for sizes 1/2″ to 24″.
  • ASME B1.20.1 – Pipe Threads, General Purpose, Inch
  • When using carbon steel, forgings to be in accordance with ASTM A105.
  • Flanges are tapped with American National Standard taper pipe threads.
  • Bolt circle diameters are 1/8 inch larger than bolt diameter.

Data thdf rjf b16.5 300 400Data rtj b16.5 150 2500

Pipe Size

(NPS)

Outside Diameter of Flange

A

Thickness of Flange

C

Diameter of Hub at Base

J

Length of Hub

L

Minimum Thread Length

N

Diameter Bore

S

Diameter of Raised Face

T

Diameter of Groove

U

Groove Width

W

Groove Depth

X

Number of Bolt Holes

 

Diameter of Bolt Holes

 

Bolt Circle Diameter

P

1/2 3 3/4 1/2 1 1/2 7/8 5/8 0.93 2 1 11/32 9/32 7/32 4 5/8 2 5/8
3/4 4 5/8 9/16 1 7/8 1 5/8 1.14 2 1/2 1 11/16 11/32 1/4 4 3/4 3 1/4
1 4 7/8 5/8 2 1/8 1 1/16 11/16 1.41 2 3/4 2 11/32 1/4 4 3/4 3 1/2
1 1/4 5 1/4 11/16 2 1/2 1 1/16 13/16 1.75 3 1/8 2 3/8 11/32 1/4 4 3/4 3 7/8
1 1/2 6 1/8 3/4 2 3/4 1 3/16 7/8 1.99 3 9/16 2 11/16 11/32 1/4 4 7/8 4 1/2
2 6 1/2 13/16 3 5/16 1 5/16 1 1/8 2.50 4 1/4 3 1/4 15/32 5/16 8 3/4 5
2 1/2 7 1/2 15/16 3 15/16 1 1/2 1 1/4 3.00 5 4 15/32 5/16 8 7/8 5 7/8
3 8 1/4 1 1/16 4 5/8 1 11/16 1 1/4 3.63 5 3/4 4 7/8 15/32 5/16 8 7/8 6 5/8
3 1/2 9 1 1/8 5 1/4 1 3/4 1 7/16 4.13 6 1/4 5 3/16 15/32 5/16 8 7/8 7 1/4
4 10 1 3/16 5 3/4 1 7/8 1 7/16 4.63 6 7/8 5 7/8 15/32 5/16 8 7/8 7 7/8
5 11 1 5/16 7 2 1 11/16 5.69 8 1/4 7 1/8 15/32 5/16 8 7/8 9 1/4
6 12 1/2 1 3/8 8 1/8 2 1/16 1 13/16 6.75 9 1/2 8 5/16 15/32 5/16 12 7/8 10 5/8
8 15 1 9/16 10 1/4 2 7/16 2 8.75 11 7/8 10 5/8 15/32 5/16 12 1 13
10 17 1/2 1 13/16 12 5/8 2 5/8 2 3/16 10.88 14 12 3/4 15/32 5/16 16 1 1/8 15 1/4
12 20 1/2 1 15/16 14 3/4 2 7/8 2 3/8 12.94 16 1/4 15 15/32 5/16 16 1 1/4 17 3/4
14 23 2 1/16 16 3/4 3 2 1/2 14.19 18 16 1/2 15/32 5/16 20 1 1/4 20 1/4
16 25 1/2 2 3/16 19 3 1/4 2 11/16 16.19 20 18 1/2 15/32 5/16 20 1 3/8 22 1/2
18 28 2 5/16 21 3 1/2 2 3/4 18.19 22 5/8 21 15/32 5/16 24 1 3/8 24 3/4
20 30 1/2 2 7/16 23 1/8 3 3/4 2 7/8 20.19 25 23 17/32 3/8 24 1 3/8 27
22 33 2 9/16 25 1/4 4 3 1/16 22.19 27 25 19/32 7/16 24 1 5/8 29 1/4
24 36 2 11/16 27 5/8 4 3/16 3 1/4 24.19 29 1/2 27 1/4 21/32 7/16 24 1 5/8 32

Dimensions Threaded Flanges, ANSI CLASS 400, ASME B16.5, 1/4″ RAISED FACE (IN) DATASHEET

This datasheet is for flanges that have athreaded flanges that have a raised face end connection.  Additional in depth information about these kinds of flanges can be found on theRaised Face Flange page.

  • Dimensions and tolerances in accordance with ANSI/ASME B16.5 for sizes 1/2″ to 24″.
  • When using carbon steel, forgings to be in accordance with ASTM A105.
  • Flanges are tapped with American National Standard taper pipe threads.
  • Bolt circle diameters are 1/8 inch larger than bolt diameter.

data thdf b16.5 400 2500data thdf b16.5

Pipe Size

(NPS)

Outside Diameter of Flange

A

Diameter of Raised Face

B

Thickness of Flange

C

Diameter of Hub at Base

J

Length of Hub

L

Minimum Thread Length

N

Diameter Bore

S

Number of Bolt Holes

 

Diameter of Bolt Holes

 

Bolt Circle Diameter

P

Approx. Weight

(Lbs.)

1/2 3 3/4 1 3/8 9/16 1 1/2 7/8 5/8 0.93 4 5/8 2 5/8 3
3/4 4 5/8 1 11/16 5/8 1 7/8 1 5/8 1.14 4 3/4 3 1/4 3
1 4 7/8 2 11/16 2 1/8 1 1/16 11/16 1.41 4 3/4 3 1/2 4
1 1/4 5 1/4 2 1/2 13/16 2 1/2 1 1/8 13/16 1.75 4 3/4 3 7/8 6
1 1/2 6 1/8 2 7/8 7/8 2 3/4 1 1/4 7/8 1.99 4 7/8 4 1/2 7
2 6 1/2 3 5/8 1 3 5/16 1 7/16 1 1/8 2.50 8 3/4 5 9
2 1/2 7 1/2 4 1/8 1 1/8 3 15/16 1 5/8 1 1/4 3.00 8 7/8 5 7/8 13
3 8 1/4 5 1 1/4 4 5/8 1 13/16 1 3/8 3.63 8 7/8 6 5/8 16
3 1/2 9 5 1/2 1 3/8 5 1/4 1 15/16 1 9/16 4.13 8 1 7 1/4 21
4 10 6 3/16 1 3/8 5 3/4 2 1 7/16 4.63 8 1 7 7/8 26
5 11 7 5/16 1 1/2 7 2 1/8 1 11/16 5.69 8 1 9 1/4 31
6 12 1/2 8 1/2 1 5/8 8 1/8 2 1/4 1 13/16 6.75 12 1 10 5/8 44
8 15 10 5/8 1 7/8 10 1/4 2 11/16 2 8.75 12 1 1/8 13 67
10 17 1/2 12 3/4 2 1/8 12 5/8 2 7/8 2 3/16 10.88 16 1 1/4 15 1/4 91
12 20 1/2 15 2 1/4 14 3/4 3 1/8 2 3/8 12.94 16 1 3/8 17 3/4 129
14 23 16 1/4 2 3/8 16 3/4 3 5/16 2 1/2 14.19 20 1 3/8 20 1/4 191
16 25 1/2 18 1/2 2 1/2 19 3 11/16 2 11/16 16.19 20 1 1/2 22 1/2 253
18 28 21 2 5/8 21 3 7/8 2 3/4 18.19 24 1 1/2 24 3/4 310
20 30 1/2 23 2 3/4 23 1/8 4 2 7/8 20.19 24 1 5/8 27 378
22 33 25 1/4 2 7/8 25 1/4 4 1/4 3 1/16 22.19 24 1 3/4 29 1/4 464
24 36 27 1/4 3 27 5/8 4 1/2 3 1/4 24.19 24 1 7/8 32 539

Dimensions Threaded Flanges, ANSI CLASS 400, ASME B16.5, 1/16″ RING TYPE JOINT (IN) DATASHEET

This datasheet is for flanges that have a ring type joint (RTJ) end connection.  Additional in depth information about these kinds of flanges can be found on the Ring Type Joint page.

  • Dimensions and tolerances in accordance with ANSI/ASME B16.5 for sizes 1/2″ to 24″.
  • ASME B1.20.1 – Pipe Threads, General Purpose, Inch
  • When using carbon steel, forgings to be in accordance with ASTM A105.
  • Flanges are tapped with American National Standard taper pipe threads.
  • Bolt circle diameters are 1/8 inch larger than bolt diameter.

Data thdf rjf b16.5 300 400Data rtj b16.5 150 2500

Pipe Size

(NPS)

Outside Diameter of Flange

A

Thickness of Flange

C

Diameter of Hub at Base

J

Length of Hub

L

Minimum Thread Length

N

Diameter Bore

S

Diameter of Raised Face

T

Diameter of Groove

U

Groove Width

W

Groove Depth

X

Number of Bolt Holes

 

Diameter of Bolt Holes

 

Bolt Circle Diameter

P

1/2 3 3/4 9/16 1 1/2 7/8 5/8 0.93 2 1 11/32 9/32 7/32 4 5/8 2 5/8
3/4 4 5/8 5/8 1 7/8 1 5/8 1.14 2 1/2 1 11/16 11/32 1/4 4 3/4 3 1/4
1 4 7/8 11/16 2 1/8 1 1/16 11/16 1.41 2 3/4 2 11/32 1/4 4 3/4 3 1/2
1 1/4 5 1/4 13/16 2 1/2 1 1/8 13/16 1.75 3 1/8 2 3/8 11/32 1/4 4 3/4 3 7/8
1 1/2 6 1/8 7/8 2 3/4 1 1/4 7/8 1.99 3 9/16 2 11/16 11/32 1/4 4 7/8 4 1/2
2 6 1/2 1 3 5/16 1 7/16 1 1/8 2.50 4 1/4 3 1/4 15/32 5/16 8 3/4 5
2 1/2 7 1/2 1 1/8 3 15/16 1 5/8 1 1/4 3.00 5 4 15/32 5/16 8 7/8 5 7/8
3 8 1/4 1 1/4 4 5/8 1 13/16 1 3/8 3.63 5 3/4 4 7/8 15/32 5/16 8 7/8 6 5/8
3 1/2 9 1 3/8 5 1/4 1 15/16 1 9/16 4.13 6 1/4 5 3/16 15/32 5/16 8 1 7 1/4
4 10 1 3/8 5 3/4 2 1 7/16 4.63 6 7/8 5 7/8 15/32 5/16 8 1 7 7/8
5 11 1 1/2 7 2 1/8 1 11/16 5.69 8 1/4 7 1/8 15/32 5/16 8 1 9 1/4
6 12 1/2 1 5/8 8 1/8 2 1/4 1 13/16 6.75 9 1/2 8 5/16 15/32 5/16 12 1 10 5/8
8 15 1 7/8 10 1/4 2 11/16 2 8.75 11 7/8 10 5/8 15/32 5/16 12 1 1/8 13
10 17 1/2 2 1/8 12 5/8 2 7/8 2 3/16 10.88 14 12 3/4 15/32 5/16 16 1 1/4 15 1/4
12 20 1/2 2 1/4 14 3/4 3 1/8 2 3/8 12.94 16 1/4 15 15/32 5/16 16 1 3/8 17 3/4
14 23 2 3/8 16 3/4 3 5/16 2 1/2 14.19 18 16 1/2 15/32 5/16 20 1 3/8 20 1/4
16 25 1/2 2 1/2 19 3 11/16 2 11/16 16.19 20 18 1/2 15/32 5/16 20 1 1/2 22 1/2
18 28 2 5/8 21 3 7/8 2 3/4 18.19 22 5/8 21 15/32 5/16 24 1 1/2 24 3/4
20 30 1/2 2 3/4 23 1/8 4 2 7/8 20.19 25 23 17/32 3/8 24 1 5/8 27
22 33 2 7/8 25 1/4 4 1/4 3 1/16 22.19 27 25 19/32 7/16 24 1 3/4 29 1/4
24 36 3 27 5/8 4 1/2 3 1/4 24.19 29 1/2 27 1/4 21/32 7/16 24 1 7/8 32

Dimensions Threaded Flanges, ANSI CLASS 600, ASME B16.5, 1/4″ RAISED FACE (IN) DATASHEET

This datasheet is for flanges that have athreaded flanges that have a raised face end connection.  Additional in depth information about these kinds of flanges can be found on theRaised Face Flange page.

  • Dimensions and tolerances in accordance with ANSI/ASME B16.5 for sizes 1/2″ to 24″.
  • When using carbon steel, forgings to be in accordance with ASTM A105.
  • Flanges are tapped with American National Standard taper pipe threads.
  • Bolt circle diameters are 1/8 inch larger than bolt diameter.

data thdf b16.5 400 2500data thdf b16.5

Pipe Size

(NPS)

Outside Diameter of Flange

A

Diameter of Raised Face

B

Thickness of Flange

C

Diameter of Hub at Base

J

Length of Hub

L

Minimum Thread Length

N

Diameter Bore

S

Number of Bolt Holes

 

Diameter of Bolt Holes

 

Bolt Circle Diameter

P

Approx. Weight

(Lbs.)

1/2 3 3/4 1 3/8 9/16 1 1/2 7/8 5/8 0.93 4 5/8 2 5/8 3
3/4 4 5/8 1 11/16 5/8 1 7/8 1 5/8 1.14 4 3/4 3 1/4 3
1 4 7/8 2 11/16 2 1/8 1 1/16 11/16 1.41 4 3/4 3 1/2 4
1 1/4 5 1/4 2 1/2 13/16 2 1/2 1 1/8 13/16 1.75 4 3/4 3 7/8 6
1 1/2 6 1/8 2 7/8 7/8 2 3/4 1 1/4 7/8 1.99 4 7/8 4 1/2 7
2 6 1/2 3 5/8 1 3 5/16 1 7/16 1 1/8 2.50 8 3/4 5 9
2 1/2 7 1/2 4 1/8 1 1/8 3 15/16 1 5/8 1 1/4 3.00 8 7/8 5 7/8 13
3 8 1/4 5 1 1/4 4 5/8 1 13/16 1 3/8 3.63 8 7/8 6 5/8 16
3 1/2 9 5 1/2 1 3/8 5 1/4 1 15/16 1 9/16 4.13 8 1 7 1/4 21
4 10 3/4 6 3/16 1 1/2 6 2 1/8 1 5/8 4.63 8 1 8 1/2 37
5 13 7 5/16 1 3/4 7 7/16 2 3/8 1 7/8 5.69 8 1 1/8 10 1/2 63
6 14 8 1/2 1 7/8 8 3/4 2 5/8 2 6.75 12 1 1/8 11 1/2 80
8 16 1/2 10 5/8 2 3/16 10 3/4 3 2 1/4 8.75 12 1 1/4 13 3/4 115
10 20 12 3/4 2 1/2 13 1/2 3 3/8 2 9/16 10.88 16 1 3/8 17 177
12 22 15 2 5/8 15 3/4 3 5/8 2 3/4 12.94 20 1 3/8 19 1/4 215
14 23 3/4 16 1/4 2 3/4 17 3 11/16 2 7/8 14.19 20 1 1/2 20 3/4 259
16 27 18 1/2 3 19 1/2 4 3/16 3 1/16 16.19 20 1 5/8 23 3/4 366
18 29 1/4 21 3 1/4 21 1/2 4 5/8 3 1/8 18.19 20 1 3/4 25 3/4 476
20 32 23 3 1/2 24 5 3 1/4 20.19 24 1 3/4 28 1/2 612
22 34 1/4 25 1/4 3 3/4 26 1/2 5 1/4 3 7/16 22.19 24 1 7/8 30 5/8 643
24 37 27 1/4 4 28 1/4 5 1/2 3 5/8 24.19 24 2 33 876

Dimensions Threaded Flanges, ANSI CLASS 600, ASME B16.5, 1/16″ RING TYPE JOINT (IN) DATASHEET

This datasheet is for flanges that have a ring type joint (RTJ) end connection.  Additional in depth information about these kinds of flanges can be found on the Ring Type Joint page.

  • Dimensions and tolerances in accordance with ANSI/ASME B16.5 for sizes 1/2″ to 24″.
  • ASME B1.20.1 – Pipe Threads, General Purpose, Inch
  • When using carbon steel, forgings to be in accordance with ASTM A105.
  • Flanges are tapped with American National Standard taper pipe threads.
  • Bolt circle diameters are 1/8 inch larger than bolt diameter.

Data thdf rjf b16.5 600 2500Data rtj b16.5 150 2500

Pipe Size

(NPS)

Outside Diameter of Flange

A

Thickness of Flange

C

Diameter of Hub at Base

J

Length of Hub

L

Minimum Thread Length

N

Diameter Bore

S

Diameter of Raised Face

T

Diameter of Groove

U

Groove Width

W

Groove Depth

X

Number of Bolt Holes

 

Diameter of Bolt Holes

 

Bolt Circle Diameter

P

1/2 3 3/4 9/16 1 1/2 7/8 5/8 0.93 2 1 11/32 9/32 7/32 4 5/8 2 5/8
3/4 4 5/8 5/8 1 7/8 1 5/8 1.14 2 1/2 1 11/16 11/32 1/4 4 3/4 3 1/4
1 4 7/8 11/16 2 1/8 1 1/16 11/16 1.41 2 3/4 2 11/32 1/4 4 3/4 3 1/2
1 1/4 5 1/4 13/16 2 1/2 1 1/8 13/16 1.75 3 1/8 2 3/8 11/32 1/4 4 3/4 3 7/8
1 1/2 6 1/8 7/8 2 3/4 1 1/4 7/8 1.99 3 9/16 2 11/16 11/32 1/4 4 7/8 4 1/2
2 6 1/2 1 3 5/16 1 7/16 1 1/8 2.50 4 1/4 3 1/4 15/32 5/16 8 3/4 5
2 1/2 7 1/2 1 1/8 3 15/16 1 5/8 1 1/4 3.00 5 4 15/32 5/16 8 7/8 5 7/8
3 8 1/4 1 1/4 4 5/8 1 13/16 1 3/8 3.63 5 3/4 4 7/8 15/32 5/16 8 7/8 6 5/8
3 1/2 9 1 3/8 5 1/4 1 15/16 1 9/16 4.13 6 1/4 5 3/16 15/32 5/16 8 1 7 1/4
4 10 3/4 1 1/2 6 2 1/8 1 5/8 4.63 6 7/8 5 7/8 15/32 5/16 8 1 8 1/2
5 13 1 3/4 7 7/16 2 3/8 1 7/8 5.69 8 1/4 7 1/8 15/32 5/16 8 1 1/8 10 1/2
6 14 1 7/8 8 3/4 2 5/8 2 6.75 9 1/2 8 5/16 15/32 5/16 12 1 1/8 11 1/2
8 16 1/2 2 3/16 10 3/4 3 2 1/4 8.75 11 7/8 10 5/8 15/32 5/16 12 1 1/4 13 3/4
10 20 2 1/2 13 1/2 3 3/8 2 9/16 10.88 14 12 3/4 15/32 5/16 16 1 3/8 17
12 22 2 5/8 15 3/4 3 5/8 2 3/4 12.94 16 1/4 15 15/32 5/16 20 1 3/8 19 1/4
14 23 3/4 2 3/4 17 3 11/16 2 7/8 14.19 18 16 1/2 15/32 5/16 20 1 1/2 20 3/4
16 27 3 19 1/2 4 3/16 3 1/16 16.19 20 18 1/2 15/32 5/16 20 1 5/8 23 3/4
18 29 1/4 3 1/4 21 1/2 4 5/8 3 1/8 18.19 22 5/8 21 15/32 5/16 20 1 3/4 25 3/4
20 32 3 1/2 24 5 3 1/4 20.19 25 23 17/32 3/8 24 1 3/4 28 1/2
22 34 1/4 3 3/4 26 1/2 5 1/4 3 7/16 22.19 27 25 19/32 7/16 24 1 7/8 30 5/8
24 37 4 28 1/4 5 1/2 3 5/8 24.19 29 1/2 27 1/4 21/32 7/16 24 2 33

Dimensions Threaded Flanges, ANSI CLASS 900, ASME B16.5, 1/4″ RAISED FACE (IN) DATASHEET

This datasheet is for flanges that have athreaded flanges that have a raised face end connection.  Additional in depth information about these kinds of flanges can be found on theRaised Face Flange page.

  • Dimensions and tolerances in accordance with ANSI/ASME B16.5 for sizes 1/2″ to 24″.
  • When using carbon steel, forgings to be in accordance with ASTM A105.
  • Flanges are tapped with American National Standard taper pipe threads.
  • Bolt circle diameters are 1/8 inch larger than bolt diameter.

data thdf b16.5 400 2500data thdf b16.5

Pipe Size

(NPS)

Outside Diameter of Flange

A

Diameter of Raised Face

B

Thickness of Flange

C

Diameter of Hub at Base

J

Length of Hub

L

Minimum Thread Length

N

Diameter Bore

S

Number of Bolt Holes

 

Diameter of Bolt Holes

 

Bolt Circle Diameter

P

Approx. Weight

(Lbs.)

1/2 4 3/4 1 3/8 7/8 1 1/2 1 1/4 7/8 0.93 4 7/8 3 1/4 9
3/4 5 1/8 1 11/16 1 1 3/4 1 3/8 1 1.14 4 7/8 3 1/2 9
1 5 7/8 2 1 1/8 2 1/16 1 5/8 1 1/8 1.41 4 1 4 9
1 1/4 6 1/4 2 1/2 1 1/8 2 1/2 1 5/8 1 3/16 1.75 4 1 4 3/8 10
1 1/2 7 2 7/8 1 1/4 2 3/4 1 3/4 1 1/4 1.99 4 1 1/8 4 7/8 14
2 8 1/2 3 5/8 1 1/2 4 1/8 2 1/4 1 1/2 2.50 8 1 6 1/2 25
2 1/2 9 5/8 4 1/8 1 5/8 4 7/8 2 1/2 1 7/8 3.00 8 1 1/8 7 1/2 36
3 9 1/2 5 1 1/2 5 2 1/8 1 5/8 3.63 8 1 7 1/2 31
3 1/2
4 11 1/2 6 3/16 1 3/4 6 1/4 2 3/4 1 7/8 4.63 8 1 1/4 9 1/4 53
5 13 3/4 7 5/16 2 7 1/2 3 1/8 2 1/8 5.69 8 1 3/8 11 83
6 15 8 1/2 2 3/16 9 1/4 3 3/8 2 1/4 6.75 12 1 1/4 12 1/2 108
8 18 1/2 10 5/8 2 1/2 11 3/4 4 2 1/2 8.75 12 1 1/2 15 1/2 172
10 21 1/2 12 3/4 2 3/4 14 1/2 4 1/4 2 13/16 10.88 16 1 1/2 18 1/2 245
12 24 15 3 1/8 16 1/2 4 5/8 3 12.94 20 1 1/2 21 326
14 25 1/4 16 1/4 3 3/8 17 3/4 5 1/8 3 1/4 14.19 20 1 5/8 22 380
16 27 3/4 18 1/2 3 1/2 20 5 1/4 3 3/8 16.19 20 1 3/4 24 1/4 459
18 31 21 4 22 1/4 6 3 1/2 18.19 20 2 27 647
20 33 3/4 23 4 1/4 24 1/2 6 1/4 3 5/8 20.19 20 2 1/8 29 1/2 792
22
24 41 27 1/4 5 1/2 29 1/2 8 4 24.19 20 2 5/8 35 1/2 1480

Dimensions Threaded Flanges, ANSI CLASS 900, ASME B16.5, 1/16″ RING TYPE JOINT (IN) DATASHEET

This datasheet is for flanges that have a ring type joint (RTJ) end connection.  Additional in depth information about these kinds of flanges can be found on the Ring Type Joint page.

  • Dimensions and tolerances in accordance with ANSI/ASME B16.5 for sizes 1/2″ to 24″.
  • ASME B1.20.1 – Pipe Threads, General Purpose, Inch
  • When using carbon steel, forgings to be in accordance with ASTM A105.
  • Flanges are tapped with American National Standard taper pipe threads.
  • Bolt circle diameters are 1/8 inch larger than bolt diameter.

Data thdf rjf b16.5 600 2500Data rtj b16.5 150 2500

Pipe Size

(NPS)

Outside Diameter of Flange

A

Thickness of Flange

C

Diameter of Hub at Base

J

Length of Hub

L

Minimum Thread Length

N

Diameter Bore

S

Diameter of Raised Face

T

Diameter of Groove

U

Groove Width

W

Groove Depth

X

Number of Bolt Holes

 

Diameter of Bolt Holes

 

Bolt Circle Diameter

P

1/2 4 3/4 7/8 1 1/2 1 1/4 7/8 0.93 2 3/8 1 9/16 11/32 1/4 4 7/8 3 1/4
3/4 5 1/8 1 1 3/4 1 3/8 1 1.14 2 5/8 1 3/4 11/32 1/4 4 7/8 3 1/2
1 5 7/8 1 1/8 2 1/16 1 5/8 1 1/8 1.41 2 13/16 2 11/32 1/4 4 1 4
1 1/4 6 1/4 1 1/8 2 1/2 1 5/8 1 3/16 1.75 3 3/16 2 3/8 11/32 1/4 4 1 4 3/8
1 1/2 7 1 1/4 2 3/4 1 3/4 1 1/4 1.99 3 5/8 2 11/16 11/32 1/4 4 1 1/8 4 7/8
2 8 1/2 1 1/2 4 1/8 2 1/4 1 1/2 2.50 4 7/8 3 3/4 15/32 5/16 8 1 6 1/2
2 1/2 9 5/8 1 5/8 4 7/8 2 1/2 1 7/8 3.00 5 3/8 4 1/4 15/32 5/16 8 1 1/8 7 1/2
3 9 1/2 1 1/2 5 2 1/8 1 5/8 3.63 6 1/8 4 7/8 15/32 5/16 8 1 7 1/2
3 1/2
4 11 1/2 1 3/4 6 1/4 2 3/4 1 7/8 4.63 7 1/8 5 7/8 15/32 5/16 8 1 1/4 9 1/4
5 13 3/4 2 7 1/2 3 1/8 2 1/8 5.69 8 1/2 7 1/8 15/32 5/16 8 1 3/8 11
6 15 2 3/16 9 1/4 3 3/8 2 1/4 6.75 9 1/2 8 5/16 15/32 5/16 12 1 1/4 12 1/2
8 18 1/2 2 1/2 11 3/4 4 2 1/2 8.75 12 1/8 10 5/8 15/32 5/16 12 1 1/2 15 1/2
10 21 1/2 2 3/4 14 1/2 4 1/4 2 13/16 10.88 14 1/4 12 3/4 15/32 5/16 16 1 1/2 18 1/2
12 24 3 1/8 16 1/2 4 5/8 3 12.94 16 1/2 15 15/32 5/16 20 1 1/2 21
14 25 1/4 3 3/8 17 3/4 5 1/8 3 1/4 14.19 18 3/8 16 1/2 21/32 7/16 20 1 5/8 22
16 27 3/4 3 1/2 20 5 1/4 3 3/8 16.19 20 5/8 18 1/2 21/32 7/16 20 1 3/4 24 1/4
18 31 4 22 1/4 6 3 1/2 18.19 23 3/8 21 25/32 1/2 20 2 27
20 33 3/4 4 1/4 24 1/2 6 1/4 3 5/8 20.19 25 1/2 23 25/32 1/2 20 2 1/8 29 1/2
22
24 41 5 1/2 29 1/2 8 4 24.19 30 3/8 27 1/4 1 1/16 5/8 20 2 5/8 35 1/2

Dimensions Threaded Flanges, ANSI CLASS 1500, ASME B16.5, 1/4″ RAISED FACE (IN) DATASHEET

This datasheet is for flanges that have athreaded flanges that have a raised face end connection.  Additional in depth information about these kinds of flanges can be found on theRaised Face Flange page.

  • Dimensions and tolerances in accordance with ANSI/ASME B16.5 for sizes 1/2″ to 24″.
  • When using carbon steel, forgings to be in accordance with ASTM A105.
  • Flanges are tapped with American National Standard taper pipe threads.
  • Bolt circle diameters are 1/8 inch larger than bolt diameter.

data thdf b16.5 400 2500data thdf b16.5

Pipe Size

(NPS)

Outside Diameter of Flange

A

Diameter of Raised Face

B

Thickness of Flange

C

Diameter of Hub at Base

J

Length of Hub

L

Minimum Thread Length

N

Diameter Bore

S

Number of Bolt Holes

 

Diameter of Bolt Holes

 

Bolt Circle Diameter

P

Approx. Weight

(Lbs.)

1/2 4 3/4 1 3/8 7/8 1 1/2 1 1/4 7/8 0.93 4 7/8 3 1/4 9
3/4 5 1/8 1 11/16 1 1 3/4 1 3/8 1 1.14 4 7/8 3 1/2 9
1 5 7/8 2 1 1/8 2 1/16 1 5/8 1 1/8 1.41 4 1 4 9
1 1/4 6 1/4 2 1/2 1 1/8 2 1/2 1 5/8 1 3/16 1.75 4 1 4 3/8 10
1 1/2 7 2 7/8 1 1/4 2 3/4 1 3/4 1 1/4 1.99 4 1 1/8 4 7/8 14
2 8 1/2 3 5/8 1 1/2 4 1/8 2 1/4 1 1/2 2.50 8 1 6 1/2 25
2 1/2 9 5/8 4 1/8 1 5/8 4 7/8 2 1/2 1 7/8 3.00 8 1 1/8 7 1/2 36
3 10 1/2 5 1 7/8 5 1/4 2 7/8 2 3.63 8 1 1/4 8 48
3 1/2
4 12 1/4 6 3/16 2 1/8 6 3/8 3 9/16 2 1/4 4.63 8 1 3/8 9 1/2 73
5 14 3/4 7 5/16 2 7/8 7 3/4 4 1/8 2 1/2 5.69 8 1 5/8 11 1/2 132
6 15 1/2 8 1/2 3 1/4 9 4 11/16 2 3/4 6.75 12 1 1/2 12 1/2 164
8 19 10 5/8 3 5/8 11 1/2 5 5/8 3 8.75 12 1 3/4 15 1/2 258
10 23 12 3/4 4 1/4 14 1/2 6 1/4 3 5/16 10.88 12 2 19 436
12 26 1/2 15 4 7/8 17 3/4 7 1/8 3 5/8 12.94 16 2 1/8 22 1/2 667

Dimensions Threaded Flanges, ANSI CLASS 300, ASME B16.5, 1/16″ RING TYPE JOINT (IN) DATASHEET

This datasheet is for flanges that have a ring type joint (RTJ) end connection.  Additional in depth information about these kinds of flanges can be found on the Ring Type Joint page.

  • Dimensions and tolerances in accordance with ANSI/ASME B16.5 for sizes 1/2″ to 24″.
  • ASME B1.20.1 – Pipe Threads, General Purpose, Inch
  • When using carbon steel, forgings to be in accordance with ASTM A105.
  • Flanges are tapped with American National Standard taper pipe threads.
  • Bolt circle diameters are 1/8 inch larger than bolt diameter.

Data thdf rjf b16.5 600 2500Data rtj b16.5 150 2500

Pipe Size

(NPS)

Outside Diameter of Flange

A

Thickness of Flange

C

Diameter of Hub at Base

J

Length of Hub

L

Minimum Thread Length

N

Diameter Bore

S

Diameter of Raised Face

T

Diameter of Groove

U

Groove Width

W

Groove Depth

X

Number of Bolt Holes

 

Diameter of Bolt Holes

 

Bolt Circle Diameter

P

1/2 4 3/4 7/8 1 1/2 1 1/4 7/8 0.93 2 3/8 1 9/16 11/32 1/4 4 7/8 3 1/4
3/4 5 1/8 1 1 3/4 1 3/8 1 1.14 2 5/8 1 3/4 11/32 1/4 4 7/8 3 1/2
1 5 7/8 1 1/8 2 1/16 1 5/8 1 1/8 1.41 2 13/16 2 11/32 1/4 4 1 4
1 1/4 6 1/4 1 1/8 2 1/2 1 5/8 1 3/16 1.75 3 3/16 2 3/8 11/32 1/4 4 1 4 3/8
1 1/2 7 1 1/4 2 3/4 1 3/4 1 1/4 1.99 3 5/8 2 11/16 11/32 1/4 4 1 1/8 4 7/8
2 8 1/2 1 1/2 4 1/8 2 1/4 1 1/2 2.50 4 7/8 3 3/4 15/32 5/16 8 1 6 1/2
2 1/2 9 5/8 1 5/8 4 7/8 2 1/2 1 7/8 3.00 5 3/8 4 1/4 15/32 5/16 8 1 1/8 7 1/2
3 10 1/2 1 7/8 5 1/4 2 7/8 2 3.63 6 5/8 5 3/8 15/32 5/16 8 1 1/4 8
3 1/2
4 12 1/4 2 1/8 6 3/8 3 9/16 2 1/4 4.63 7 5/8 6 3/8 15/32 5/16 8 1 3/8 9 1/2
5 14 3/4 2 7/8 7 3/4 4 1/8 2 1/2 5.69 9 7 5/8 15/32 5/16 8 1 5/8 11 1/2
6 15 1/2 3 1/4 9 4 11/16 2 3/4 6.75 9 3/4 8 5/16 17/32 3/8 12 1 1/2 12 1/2
8 19 3 5/8 11 1/2 5 5/8 3 8.75 12 1/2 10 5/8 21/32 7/16 12 1 3/4 15 1/2
10 23 4 1/4 14 1/2 6 1/4 3 5/16 10.88 14 5/8 12 3/4 21/32 7/16 12 2 19
12 26 1/2 4 7/8 17 3/4 7 1/8 3 5/8 12.94 17 1/4 15 29/32 9/16 16 2 1/8 22 1/2
14 29 1/2 5 1/4 19 1/2 19 1/4 16 1/2 1 1/16 5/8 16 2 3/8 25
16 32 1/2 5 3/4 21 3/4 21 1/2 18 1/2 1 3/16 11/16 16 2 5/8 27 3/4
18 36 6 3/8 23 1/2 24 1/8 21 1 3/16 11/16 16 2 7/8 30 1/2
20 38 3/4 7 25 1/4 26 1/2 23 1 5/16 11/16 16 3 1/8 32 3/4
22
24 46 8 30 31 1/4 27 1/4 1 7/16 13/16 16 3 5/8 39

Dimensions Threaded Flanges, ANSI CLASS 2500, ASME B16.5, 1/4″ RAISED FACE (IN) DATASHEET

This datasheet is for flanges that have athreaded flanges that have a raised face end connection.  Additional in depth information about these kinds of flanges can be found on theRaised Face Flange page.

  • Dimensions and tolerances in accordance with ANSI/ASME B16.5 for sizes 1/2″ to 24″.
  • When using carbon steel, forgings to be in accordance with ASTM A105.
  • Flanges are tapped with American National Standard taper pipe threads.
  • Bolt circle diameters are 1/8 inch larger than bolt diameter.

data thdf b16.5 400 2500data thdf b16.5

Pipe Size

(NPS)

Outside Diameter of Flange

A

Diameter of Raised Face

B

Thickness of Flange

C

Diameter of Hub at Base

J

Length of Hub

L

Minimum Thread Length

N

Diameter Bore

S

Number of Bolt Holes

 

Diameter of Bolt Holes

 

Bolt Circle Diameter

P

Approx. Weight

(Lbs.)

1/2 5 1/4 1 3/8 1 3/16 1 11/16 1 9/16 1 1/8 0.93 4 7/8 3 1/2 7
3/4 5 1/2 1 11/16 1 1/4 2 1 11/16 1 1/4 1.14 4 7/8 3 3/4 9
1 6 1/4 2 1 3/8 2 1/4 1 7/8 1 3/8 1.41 4 1 4 1/4 12
1 1/4 7 1/4 2 1/2 1 1/2 2 7/8 2 1/16 1 1/2 1.75 4 1 1/8 5 1/8 18
1 1/2 8 2 7/8 1 3/4 3 1/8 2 3/8 1 3/4 1.99 4 1 1/4 5 3/4 25
2 9 1/4 3 5/8 2 3 3/4 2 3/4 2 2.50 8 1 1/8 6 3/4 38
2 1/2 10 1/2 4 1/8 2 1/4 4 1/2 3 1/8 2 1/4 3.00 8 1 1/4 7 3/4 55
3 12 5 2 5/8 5 1/4 3 5/8 2 1/2 3.63 8 1 3/8 9 83
3 1/2
4 14 6 3/16 3 6 1/2 4 1/4 2 3/4 4.63 8 1 5/8 10 3/4 127
5 16 1/2 7 5/16 3 5/8 8 5 1/8 3 5.69 8 1 7/8 12 3/4 210
6 19 8 1/2 4 1/4 9 1/4 6 3 1/4 6.75 8 2 1/8 14 1/2 323
8 21 3/4 10 5/8 5 12 7 3 3/4 8.75 12 2 1/8 17 1/4 485
10 26 1/2 12 3/4 6 1/2 14 3/4 9 4 1/4 10.88 12 2 5/8 21 1/4 925
12 30 15 7 1/4 17 3/8 10 4 3/4 12.94 12 2 7/8 24 3/8 1300

Dimensions Threaded Flanges, ANSI CLASS 2500, ASME B16.5, 1/16″ RING TYPE JOINT (IN) DATASHEET

This datasheet is for flanges that have a ring type joint (RTJ) end connection.  Additional in depth information about these kinds of flanges can be found on the Ring Type Joint page.

  • Dimensions and tolerances in accordance with ANSI/ASME B16.5 for sizes 1/2″ to 24″.
  • ASME B1.20.1 – Pipe Threads, General Purpose, Inch
  • When using carbon steel, forgings to be in accordance with ASTM A105.
  • Flanges are tapped with American National Standard taper pipe threads.
  • Bolt circle diameters are 1/8 inch larger than bolt diameter.

Data thdf rjf b16.5 600 2500Data rtj b16.5 150 2500

Pipe Size

(NPS)

Outside Diameter of Flange

A

Thickness of Flange

C

Diameter of Hub at Base

J

Length of Hub

L

Minimum Thread Length

N

Diameter Bore

S

Diameter of Raised Face

T

Diameter of Groove

U

Groove Width

W

Groove Depth

X

Number of Bolt Holes

 

Diameter of Bolt Holes

 

Bolt Circle Diameter

P

1/2 5 1/4 1 3/16 1 11/16 1 9/16 1 1/8 0.93 2 9/16 1 11/16 11/32 1/4 4 7/8 3 1/2
3/4 5 1/2 1 1/4 2 1 11/16 1 1/4 1.14 2 7/8 2 11/32 1/4 4 7/8 3 3/4
1 6 1/4 1 3/8 2 1/4 1 7/8 1 3/8 1.41 3 1/4 2 3/8 11/32 1/4 4 1 4 1/4
1 1/4 7 1/4 1 1/2 2 7/8 2 1/16 1 1/2 1.75 4 2 27/32 15/32 5/16 4 1 1/8 5 1/8
1 1/2 8 1 3/4 3 1/8 2 3/8 1 3/4 1.99 4 1/2 3 1/4 15/32 5/16 4 1 1/4 5 3/4
2 9 1/4 2 3 3/4 2 3/4 2 2.50 5 1/4 4 15/32 5/16 8 1 1/8 6 3/4
2 1/2 10 1/2 2 1/4 4 1/2 3 1/8 2 1/4 3.00 5 7/8 4 3/8 17/32 3/8 8 1 1/4 7 3/4
3 12 2 5/8 5 1/4 3 5/8 2 1/2 3.63 6 5/8 5 17/32 3/8 8 1 3/8 9
3 1/2
4 14 3 6 1/2 4 1/4 2 3/4 4.63 8 6 3/16 22/51 7/16 8 1 5/8 10 3/4
5 16 1/2 3 5/8 8 5 1/8 3 5.69 9 1/2 7 1/2 21/32 1/2 8 1 7/8 12 3/4
6 19 4 1/4 9 1/4 6 3 1/4 6.75 11 9 25/32 1/2 8 2 1/8 14 1/2
8 21 3/4 5 12 7 3 3/4 8.75 13 3/8 11 29/32 9/16 12 2 1/8 17 1/4
10 26 1/2 6 1/2 14 3/4 9 4 1/4 10.88 16 3/4 13 1/2 1 3/16 11/16 12 2 5/8 21 1/4
12 30 7 1/4 17 3/8 10 4 3/4 12.94 19 1/2 16 1 5/16 11/16 12 2 7/8 24 3/8

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