Slip On flange or SO flange is commonly lower in price than weld-neck flanges, and to this effect are a popular choice for our customers. However, customers should bear in mind that this initial cost saving may be diminished by the additional cost of the two fillet welds required for proper installation. Moreover, weld-neck flanges have a higher life expentancy than slip-on flanges under duress.

The slip on flange is positioned so the inserted end of the pipe or fitting is set short of the flange face by the thickness of the pipe wall plus 1/8 of an inch, which thus allows for a fillet weld inside the SO flange equal without doing any damage to the flange face. The back or outside of the slip-on flange or SO flange is also welded with a fillet weld.

Advantages of slip on flanges:

Low cost installation
Less time needed to spent on ensuring the accuracy of the cut pipe
They are somewhat easier to align
The slip-on flanges have low hub because the pipe slips into the flange before welding
The flange is welded both inside and outside to provide sufficient strength
They prevent leakage

Specifications of Slip-on flange:

Size: 1/2” to 60”, DN 12mm to DN 1500mm .
Pressure class: Class 150 to Class 2,500, PN 2.5 to PN 250
Facing: RF / RTJ

Material of Slip-on flange:

Cabon steel: A105, A350 LF2
Stainless steel: A182 F304/F304L/F316/F316L/F321
Alloy steel: F11, F12
Packing: plywood case and plywood pallet

Dimensions Slip on Flange, ANSI CLASS 75, INDUSTRY STANDARD, 1/16″ RAISED FACE (IN) DATASHEET

  • Industry Standard Flanges have no national standard code or are they covered by any governing body.
  • Bolt circle diameters are 1/8 inch larger than bolt diameter.

FLANGE SLIP ON 150 300data sof b16.5

Pipe

Size

(NPS)

Outside

Diameter

of

Flange

A

Diameter

of

Raised

Face

B

Thickness

of

Flange


C

Diameter

of

Bore


E

Diameter

of Hub

at Base


J

Length

of

Hub


L

Number

of

Bolt

Holes

Diameter

of

Bolt

Holes

Bolt

Circle

Diameter


P

Approx.

Weight

26 33 30 1 1/4 26 1/4 28 1/2 2 1/4 32 1 31 120
28 35 32 1 3/8 28 1/4 30 1/2 2 1/4 36 1 33 140
30 37 34 1 3/8 30 1/4 32 1/2 2 1/4 36 1 35 150
32 39 1/2 36 1/4 1 1/2 32 1/4 34 5/8 2 1/2 40 1 1/8 37 3/8 170
34 41 1/2 38 1/4 1 5/8 34 1/4 36 5/8 2 1/2 40 1 1/8 39 3/8 180
36 43 1/2 40 1/4 1 5/8 36 1/4 38 5/8 2 1/2 44 1 1/8 41 3/8 190
42 50 46 1/2 1 7/8 42 1/4 44 3/4 2 3/4 48 1 1/4 47 3/4 235
48 56 52 1/2 2 1/8 48 1/4 50 3/4 2 7/8 56 1 1/4 53 3/4 270
54 62 1/2 59 2 3/8 54 1/4 57 1/4 3 1/8 68 1 1/4 60 1/4 335
60 68 1/2 65 2 5/8 60 1/4 63 1/4 3 5/8 72 1 1/4 66 1/4 450
66 75 1/2 71 5/8 2 7/8 66 1/4 69 1/2 4 72 1 3/8 73 590
72 81 1/2 77 5/8 3 1/8 72 1/4 75 1/2 4 1/2 80 1 3/8 79 730

Dimensions Slip on Flange, ANSI CLASS 150, ASME B16.5, 1/16″ RAISED FACE (IN) DATASHEET

This datasheet is for flanges that have a raised face connection.  Additional in depth information about these flanges can be found on the raised face page.

  • Dimensions to ASME B16.5 – Pipe Flanges and Flanged Fittings: NPS 1/2 through NPS 24 Metric/Inch Standard
  • Bolt circle diameters are 1/8 inch larger than bolt diameter.

data sof b16.5 150 300data sof b16.5

Pipe Size

(NPS)

Outside Diameter of Flange

A

Diameter of Raised Face

B

Thickness of Flange

C

Diameter of Bore

E

Diameter of Hub at Base

J

Length of Hub

L

Number of Bolt Holes

 

Diameter of Bolt Holes

 

Bolt Circle Diameter

P

Approx. Weight

(Lb.)

1/2 3 1/2 1 3/8 7/16 0.88 1 3/16 5/8 4 5/8 2 3/8 2
3/4 3 7/8 1 11/16 1/2 1.09 1 1/2 5/8 4 5/8 2 3/4 2
1 4 1/4 2 9/16 1.36 1 15/16 11/16 4 5/8 3 1/8 2
1 1/4 4 5/8 2 1/2 5/8 1.70 2 5/16 13/16 4 5/8 3 1/2 3
1 1/2 5 2 7/8 11/16 1.95 2 9/16 7/8 4 5/8 3 7/8 3
2 6 3 5/8 3/4 2.44 3 1/16 1 4 3/4 4 3/4 5
2 1/2 7 4 1/8 7/8 2.94 3 9/16 1 1/8 4 3/4 5 1/2 7
3 7 1/2 5 15/16 3.57 4 1/4 1 3/16 4 3/4 6 8
3 1/2 8 1/2 5 1/2 15/16 4.07 4 13/16 1 1/4 8 3/4 7 11
4 9 6 3/16 15/16 4.57 5 5/16 1 5/16 8 3/4 7 1/2 13
5 10 7 5/16 15/16 5.66 6 7/16 1 7/16 8 7/8 8 1/2 15
6 11 8 1/2 1 6.72 7 9/16 1 9/16 8 7/8 9 1/2 19
8 13 1/2 10 5/8 1 1/8 8.72 9 11/16 1 3/4 8 7/8 11 3/4 30
10 16 12 3/4 1 3/16 10.88 12 1 15/16 12 1 14 1/4 43
12 19 15 1 1/4 12.88 14 3/8 2 3/16 12 1 17 64
14 21 16 1/4 1 3/8 14.14 15 3/4 2 1/4 12 1 1/8 18 3/4 85
16 23 1/2 18 1/2 1 7/16 16.16 18 2 1/2 16 1 1/8 21 1/4 93
18 25 21 1 9/16 18.18 19 7/8 2 11/16 16 1 1/4 22 3/4 120
20 27 1/2 23 1 11/16 20.20 22 2 7/8 20 1 1/4 25 155
22 29 1/2 25 1/4 1 13/16 22.22 24 3 1/8 20 1 3/8 27 1/4 159
24 32 27 1/4 1 7/8 24.25 26 1/8 3 1/4 20 1 3/8 29 1/2 210

Dimensions Slip on Flange, ANSI CLASS 150, ASME B16.5, RING TIGHT 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 to ASME B16.5 – Pipe Flanges and Flanged Fittings: NPS 1/2 through NPS 24 Metric/Inch Standard
  • Bolt circle diameters are 1/8 inch larger than bolt diameter.

data sof rtj b16.5 150 400data 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 1.36 1 15/16 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 1.70 2 5/16 13/16 2 7/8 2 1/4 11/32 1/4 4 5/8 3 1/2
1 1/2 5 5/8 1.95 2 9/16 7/8 3 1/4 2 9/16 11/32 1/4 4 5/8 3 7/8
2 6 11/16 2.44 3 1/16 1 4 3 1/4 11/32 1/4 4 3/4 4 3/4
2 1/2 7 13/16 2.94 3 9/16 1 1/8 4 3/4 4 11/32 1/4 4 3/4 5 1/2
3 7 1/2 7/8 3.57 4 1/4 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 4.07 4 13/16 1 1/4 6 1/16 5 3/16 11/32 1/4 8 3/4 7
4 9 7/8 4.57 5 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 5.66 6 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 6.72 7 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 8.72 9 11/16 1 3/4 10 3/4 9 3/4 11/32 1/4 8 7/8 11 3/4
10 16 1 1/8 10.88 12 1 15/16 13 12 11/32 1/4 12 1 14 1/4
12 19 1 3/16 12.88 14 3/8 2 3/16 16 15 11/32 1/4 12 1 17
14 21 1 5/16 14.14 15 3/4 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 16.16 18 2 1/2 19 17 7/8 11/32 1/4 16 1 1/8 21 1/4
18 25 1 1/2 18.18 19 7/8 2 11/16 21 1/2 20 3/8 11/32 1/4 16 1 1/4 22 3/4 18
20 27 1/2 1 5/8 20.20 22 2 7/8 23 1/2 22 11/32 1/4 20 1 1/4 25
22 29 1/2 1 3/4 22.22 24 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 24.25 26 1/8 3 1/4 28 26 1/2 11/32 1/4 20 1 3/8 29 1/2

Dimensions Slip on Flange, ANSI CLASS 300, ASME B16.5, 1/16″ RAISED FACE (IN) DATASHEET

This datasheet is for flanges that have a raised face connection.  Additional in depth information about these flanges can be found on the raised face page.

  • Dimensions to ASME B16.5 – Pipe Flanges and Flanged Fittings: NPS 1/2 through NPS 24 Metric/Inch Standard
  • Bolt circle diameters are 1/8 inch larger than bolt diameter.

data sof b16.5 150 300data sof b16.5

Pipe Size

(NPS)

Outside Diameter of Flange

A

Diameter of Raised Face

B

Thickness of Flange

C

Diameter of Bore

E

Diameter of Hub at Base

J

Length of Hub

L

Number of Bolt Holes

 

Diameter of Bolt Holes

 

Bolt Circle Diameter

P

Approx. Weight

(Lb.)

1/2 3 3/4 1 3/8 9/16 0.88 1 1/2 7/8 4 5/8 2 5/8 3
3/4 4 5/8 1 11/16 5/8 1.09 1 7/8 1 4 3/4 3 1/4 3
1 4 7/8 2 11/16 1.36 2 1/8 1 1/16 4 3/4 3 1/2 3
1 1/4 5 1/4 2 1/2 3/4 1.70 2 1/2 1 1/16 4 3/4 3 7/8 4
1 1/2 6 1/8 2 7/8 13/16 1.95 2 3/4 1 3/16 4 7/8 4 1/2 6
2 6 1/2 3 5/8 7/8 2.44 3 5/16 1 5/16 8 3/4 5 7
2 1/2 7 1/2 4 1/8 1 2.94 3 15/16 1 1/2 8 7/8 5 7/8 10
3 8 1/4 5 1 1/8 3.57 4 5/8 1 11/16 8 7/8 6 5/8 13
3 1/2 9 5 1/2 1 3/16 4.07 5 1/4 1 3/4 8 7/8 7 1/4 17
4 10 6 3/16 1 1/4 4.57 5 3/4 1 7/8 8 7/8 7 7/8 22
5 11 7 5/16 1 3/8 5.66 7 2 8 7/8 9 1/4 28
6 12 1/2 8 1/2 1 7/16 6.72 8 1/8 2 1/16 12 7/8 10 5/8 39
8 15 10 5/8 1 5/8 8.72 10 1/4 2 7/16 12 1 13 58
10 17 1/2 12 3/4 1 7/8 10.88 12 5/8 2 5/8 16 1 1/8 15 1/4 81
12 20 1/2 15 2 12.88 14 3/4 2 7/8 16 1 1/4 17 3/4 115
14 23 16 1/4 2 1/8 14.14 16 3/4 3 20 1 1/4 20 1/4 164
16 25 1/2 18 1/2 2 1/4 16.16 19 3 1/4 20 1 3/8 22 1/2 220
18 28 21 2 3/8 18.18 21 3 1/2 24 1 3/8 24 3/4 280
20 30 1/2 23 2 1/2 20.20 23 1/8 3 3/4 24 1 3/8 27 325
22 33 25 1/4 2 5/8 22.22 25 1/4 4 24 1 5/8 29 1/4 433
24 36 27 1/4 2 3/4 24.25 27 5/8 4 3/16 24 1 5/8 32 490

Dimensions Slip on Flange, ANSI CLASS 300, ASME B16.5, RING TIGHT 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 to ASME B16.5 – Pipe Flanges and Flanged Fittings: NPS 1/2 through NPS 24 Metric/Inch Standard
  • Bolt circle diameters are 1/8 inch larger than bolt diameter.

data sof rtj b16.5 150 400data 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 3/4 1/2 0.88 1 1/2 7/8 2 1 11/32 9/32 7/32 4 5/8 2 5/8
3/4 4 5/8 9/16 1.09 1 7/8 1 2 1/2 1 11/16 11/32 1/4 4 3/4 3 1/4
1 4 7/8 5/8 1.36 2 1/8 1 1/16 2 3/4 2 11/32 1/4 4 3/4 3 1/2
1 1/4 5 1/4 11/16 1.70 2 1/2 1 1/16 3 1/8 2 3/8 11/32 1/4 4 3/4 3 7/8
1 1/2 6 1/8 3/4 1.95 2 3/4 1 3/16 3 9/16 2 11/16 11/32 1/4 4 7/8 4 1/2
2 6 1/2 13/16 2.44 3 5/16 1 5/16 4 1/4 3 1/4 15/32 5/16 8 3/4 5
2 1/2 7 1/2 15/16 2.94 3 15/16 1 1/2 5 4 15/32 5/16 8 7/8 5 7/8
3 8 1/4 1 1/16 3.57 4 5/8 1 11/16 5 3/4 4 7/8 15/32 5/16 8 7/8 6 5/8
3 1/2 9 1 1/8 4.07 5 1/4 1 3/4 6 1/4 5 3/16 15/32 5/16 8 7/8 7 1/4
4 10 1 3/16 4.57 5 3/4 1 7/8 6 7/8 5 7/8 15/32 5/16 8 7/8 7 7/8
5 11 1 6/16 5.66 7 2 8 1/4 7 1/8 15/32 5/16 8 7/8 9 1/4
6 12 1/2 1 3/8 6.72 8 1/8 2 1/16 9 1/2 8 5/16 15/32 5/16 12 7/8 10 5/8
8 15 1 9/16 8.72 10 1/4 2 7/16 11 7/8 10 5/8 15/32 5/16 12 1 13
10 17 1/2 1 13/16 10.88 12 5/8 2 5/8 14 12 3/4 15/32 5/16 16 1 1/8 15 1/4
12 20 1/2 1 15/16 12.88 14 3/4 2 7/8 16 1/4 15 15/32 5/16 16 1 1/4 17 3/4
14 23 2 1/16 14.14 16 3/4 3 18 16 1/2 15/32 5/16 20 1 1/4 20 1/4
16 25 1/2 2 3/16 16.16 19 3 1/4 20 18 1/2 15/32 5/16 20 1 3/8 22 1/2
18 28 2 5/16 18.18 21 3 1/2 22 5/8 21 15/32 5/16 24 1 3/8 24 3/4
20 30 1/2 2 7/16 20.20 23 1/8 3 3/4 25 23 17/32 3/8 24 1 3/8 27
22 33 2 9/16 22.22 25 1/4 4 27 25 19/32 7/16 24 1 5/8 29 1/4
24 36 2 11/16 24.25 27 5/8 4 3/16 29 1/2 27 1/4 21/32 7/16 24 1 5/8 32

Dimensions Slip on Flange, ANSI CLASS 400, ASME B16.5, 1/16″ RAISED FACE (IN) DATASHEET

This datasheet is for flanges that have a raised face connection.  Additional in depth information about these flanges can be found on the raised face page.

  • Dimensions to ASME B16.5 – Pipe Flanges and Flanged Fittings: NPS 1/2 through NPS 24 Metric/Inch Standard
  • Bolt circle diameters are 1/8 inch larger than bolt diameter.

data sof b16.5 400 2500data sof b16.5

Pipe Size

(NPS)

Outside Diameter of Flange

A

Diameter of Raised Face

B

Thickness of Flange

C

Diameter of Bore

E

Diameter of Hub at Base

J

Length of Hub

L

Number of Bolt Holes

 

Diameter of Bolt Holes

 

Bolt Circle Diameter

P

Approx. Weight

(Lb.)

1/2 3 3/4 1 3/8 9/16 0.88 1 1/2 7/8 4 5/8 2 5/8 3
3/4 4 5/8 1 11/16 5/8 1.09 1 7/8 1 4 3/4 3 1/4 3
1 4 7/8 2 11/16 1.36 2 1/8 1 1/16 4 3/4 3 1/2 4
1 1/4 5 1/4 2 1/2 13/16 1.70 2 1/2 1 1/8 4 3/4 3 7/8 6
1 1/2 6 1/8 2 7/8 7/8 1.95 2 3/4 1 1/4 4 7/8 4 1/2 7
2 6 1/2 3 5/8 1 2.44 3 5/16 1 7/16 8 3/4 5 9
2 1/2 7 1/2 4 1/8 1 1/8 2.94 3 15/16 1 5/8 8 7/8 5 7/8 13
3 8 1/4 5 1 1/4 3.57 4 5/8 1 13/16 8 7/8 6 5/8 16
3 1/2 9 5 1/2 1 3/8 4.07 5 1/4 1 15/16 8 1 7 1/4 21
4 10 6 3/16 1 3/8 4.57 5 3/4 2 8 1 7 7/8 26
5 11 7 5/16 1 1/2 5.66 7 2 1/8 8 1 9 1/4 31
6 12 1/2 8 1/2 1 5/8 6.72 8 1/8 2 1/4 12 1 10 5/8 44
8 15 10 5/8 1 7/8 8.72 10 1/4 2 11/16 12 1 1/8 13 67
10 17 1/2 12 3/4 2 1/8 10.88 12 5/8 2 7/8 16 1 1/4 15 1/4 91
12 20 1/2 15 2 1/4 12.88 14 3/4 3 1/8 16 1 3/8 17 3/4 129
14 23 16 1/4 2 3/8 14.14 16 3/4 3 5/16 20 1 3/8 20 1/4 191
16 25 1/2 18 1/2 2 1/2 16.16 19 3 11/16 20 1 1/2 22 1/2 253
18 28 21 2 5/8 18.18 21 3 7/8 24 1 1/2 24 3/4 310
20 30 1/2 23 2 3/4 20.20 23 1/8 4 24 1 5/8 27 378
22 33 25 1/4 2 7/8 22.22 25 1/4 4 1/4 24 1 3/4 29 1/4 464
24 36 27 1/4 3 24.25 27 5/8 4 1/2 24 1 7/8 32 539

Dimensions Slip on Flange, ANSI CLASS 400, ASME B16.5, RING TIGHT 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 to ASME B16.5 – Pipe Flanges and Flanged Fittings: NPS 1/2 through NPS 24 Metric/Inch Standard
  • Bolt circle diameters are 1/8 inch larger than bolt diameter.

data sof rtj b16.5 150 400data 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 3/4 9/16 0.88 1 1/2 7/8 2 1 11/32 9/32 7/32 4 5/8 2 5/8
3/4 4 5/8 5/8 1.09 1 7/8 1 2 1/2 1 11/16 11/32 1/4 4 3/4 3 1/4
1 4 7/8 11/16 1.36 2 1/8 1 1/16 2 3/4 2 11/32 1/4 4 3/4 3 1/2
1 1/4 5 1/4 13/16 1.70 2 1/2 1 1/8 3 1/8 2 3/8 11/32 1/4 4 3/4 3 7/8
1 1/2 6 1/8 7/8 1.95 2 3/4 1 1/4 3 9/16 2 11/16 11/32 1/4 4 7/8 4 1/2
2 6 1/2 1 2.44 3 5/16 1 7/16 4 1/4 3 1/4 15/32 5/16 8 3/4 5
2 1/2 7 1/2 1 1/8 2.94 3 15/16 1 5/8 5 4 15/32 5/16 8 7/8 5 7/8
3 8 1/4 1 1/4 3.57 4 5/8 1 13/16 5 3/4 4 7/8 15/32 5/16 8 7/8 6 5/8
3 1/2 9 1 3/8 4.07 5 1/4 1 15/16 6 1/4 5 3/16 15/32 5/16 8 1 7 1/4
4 10 1 3/8 4.57 5 3/4 2 6 7/8 5 7/8 15/32 5/16 8 1 7 7/8
5 11 1 1/2 5.66 7 2 1/8 8 1/4 7 1/8 15/32 5/16 8 1 9 1/4
6 12 1/2 1 5/8 6.72 8 1/8 2 1/4 9 1/2 8 5/16 15/32 5/16 12 1 10 5/8
8 15 1 7/8 8.72 10 1/4 2 11/16 11 7/8 10 5/8 15/32 5/16 12 1 1/8 13
10 17 1/2 2 1/8 10.88 12 5/8 2 7/8 14 12 3/4 15/32 5/16 16 1 1/4 15 1/4
12 20 1/2 2 1/4 12.88 14 3/4 3 1/8 16 1/4 15 15/32 5/16 16 1 3/8 17 3/4
14 23 2 3/8 14.14 16 3/4 3 5/16 18 16 1/2 15/32 5/16 20 1 3/8 20 1/4
16 25 1/2 2 1/2 16.16 19 3 11/16 20 18 1/2 15/32 5/16 20 1 1/2 22 1/2
18 28 2 5/8 18.18 21 3 7/8 22 5/8 21 15/32 5/16 24 1 1/2 24 3/4
20 30 1/2 2 3/4 20.20 23 1/8 4 25 23 17/32 3/8 24 1 5/8 27
22 33 2 7/8 22.22 25 1/4 4 1/4 27 25 19/32 7/16 24 1 3/4 29 1/4
24 36 3 24.25 27 5/8 4 1/2 29 1/2 27 1/4 21/32 7/16 24 1 7/8 32

Dimensions Slip on Flange, ANSI CLASS 600, ASME B16.5, 1/16″ RAISED FACE (IN) DATASHEET

This datasheet is for flanges that have a raised face connection.  Additional in depth information about these flanges can be found on the raised face page.

  • Dimensions to ASME B16.5 – Pipe Flanges and Flanged Fittings: NPS 1/2 through NPS 24 Metric/Inch Standard
  • Bolt circle diameters are 1/8 inch larger than bolt diameter.

data sof b16.5 400 2500data sof b16.5

Pipe Size

(NPS)

Outside Diameter of Flange

A

Diameter of Raised Face

B

Thickness of Flange

C

Diameter of Bore

E

Diameter of Hub at Base

J

Length of Hub

L

Number of Bolt Holes

 

Diameter of Bolt Holes

 

Bolt Circle Diameter

P

Approx. Weight

(Lb.)

1/2 3 3/4 1 3/8 9/16 0.88 1 1/2 7/8 4 5/8 2 5/8 3
3/4 4 5/8 1 11/16 5/8 1.09 1 7/8 1 4 3/4 3 1/4 3
1 4 7/8 2 11/16 1.36 2 1/8 1 1/16 4 3/4 3 1/2 4
1 1/4 5 1/4 2 1/2 13/16 1.70 2 1/2 1 1/8 4 3/4 3 7/8 6
1 1/2 6 1/8 2 7/8 7/8 1.95 2 3/4 1 1/4 4 7/8 4 1/2 7
2 6 1/2 3 5/8 1 2.44 3 5/16 1 7/16 8 3/4 5 9
2 1/2 7 1/2 4 1/8 1 1/8 2.94 3 15/16 1 5/8 8 7/8 5 7/8 13
3 8 1/4 5 1 1/4 3.57 4 5/8 1 13/16 8 7/8 6 5/8 16
3 1/2 9 5 1/2 1 3/8 4.07 5 1/4 1 15/16 8 1 7 1/4 21
4 10 3/4 6 3/16 1 1/2 4.57 6 2 1/8 8 1 8 1/2 37
5 13 7 5/16 1 3/4 5.66 7 7/16 2 3/8 8 1 1/8 10 1/2 63
6 14 8 1/2 1 7/8 6.72 8 3/4 2 5/8 12 1 1/8 11 1/2 80
8 16 1/2 10 5/8 2 3/16 8.72 10 3/4 3 12 1 1/4 13 3/4 115
10 20 12 3/4 2 1/2 10.88 13 1/2 3 3/8 16 1 3/8 17 177
12 22 15 2 5/8 12.88 15 3/4 3 5/8 20 1 3/8 19 1/4 215
14 23 3/4 16 1/4 2 3/4 14.14 17 3 11/16 20 1 1/2 20 3/4 259
16 27 18 1/2 3 16.16 19 1/2 4 3/16 20 1 5/8 23 3/4 366
18 29 1/4 21 3 1/4 18.18 21 1/2 4 5/8 20 1 3/4 25 3/4 476
20 32 23 3 1/2 20.20 24 5 24 1 3/4 28 1/2 612
22 34 1/4 25 1/4 3 3/4 22.22 26 1/2 5 1/4 24 1 7/8 30 5/8 643
24 37 27 1/4 4 24.25 28 1/4 5 1/2 24 2 33 876

Dimensions Slip on Flange, ANSI CLASS 600, ASME B16.5, RING TIGHT 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 to ASME B16.5 – Pipe Flanges and Flanged Fittings: NPS 1/2 through NPS 24 Metric/Inch Standard
  • Bolt circle diameters are 1/8 inch larger than bolt diameter.

data sof rtj b16.5 600 2500data 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 3/4 9/16 0.88 1 1/2 7/8 2 1 11/32 9/32 7/32 4 5/8 2 5/8
3/4 4 5/8 5/8 1.09 1 7/8 1 2 1/2 1 11/16 11/32 1/4 4 3/4 3 1/4
1 4 7/8 11/16 1.36 2 1/8 1 1/16 2 3/4 2 11/32 1/4 4 3/4 3 1/2
1 1/4 5 1/4 13/16 1.70 2 1/2 1 1/8 3 1/8 2 3/8 11/32 1/4 4 3/4 3 7/8
1 1/2 6 1/8 7/8 1.95 2 3/4 1 1/4 3 9/16 2 11/16 11/32 1/4 4 7/8 4 1/2
2 6 1/2 1 2.44 3 5/16 1 7/16 4 1/4 3 1/4 15/32 5/16 8 3/4 5
2 1/2 7 1/2 1 1/8 2.94 3 15/16 1 5/8 5 4 15/32 5/16 8 7/8 5 7/8
3 8 1/4 1 1/4 3.57 4 5/8 1 13/16 5 3/4 4 7/8 15/32 5/16 8 7/8 6 5/8
3 1/2 9 1 3/8 4.07 5 1/4 1 15/16 6 1/4 5 3/16 15/32 5/16 8 1 7 1/4
4 10 3/4 1 1/2 4.57 6 2 1/8 6 7/8 5 7/8 15/32 5/16 8 1 8 1/2
5 13 1 3/4 5.66 7 7/16 2 3/8 8 1/4 7 1/8 15/32 5/16 8 1 1/8 10 1/2
6 14 1 7/8 6.72 8 3/4 2 5/8 9 1/2 8 5/16 15/32 5/16 12 1 1/8 11 1/2
8 16 1/2 2 3/16 8.72 10 3/4 3 11 7/8 10 5/8 15/32 5/16 12 1 1/4 13 3/4
10 20 2 1/2 10.88 13 1/2 3 3/8 14 12 3/4 15/32 5/16 16 1 3/8 17
12 22 2 5/8 12.88 15 3/4 3 5/8 16 1/4 15 15/32 5/16 20 1 3/8 19 1/4
14 23 3/4 2 3/4 14.14 17 3 11/16 18 16 1/2 15/32 5/16 20 1 1/2 20 3/4
16 27 3 16.16 19 1/2 4 3/16 20 18 1/2 15/32 5/16 20 1 5/8 23 3/4
18 29 1/4 3 1/4 18.18 21 1/2 4 5/8 22 5/8 21 15/32 5/16 20 1 3/4 25 3/4
20 32 3 1/2 20.20 24 5 25 23 17/32 3/8 24 1 3/4 28 1/2
22 34 1/4 3 3/4 22.22 26 1/2 5 1/4 27 25 19/32 7/16 24 1 7/8 30 5/8
24 37 4 24.25 28 1/4 5 1/2 29 1/2 27 1/4 21/32 7/16 24 2 33

Dimensions Slip on Flange, ANSI CLASS 900, ASME B16.5, 1/16″ RAISED FACE (IN) DATASHEET

This datasheet is for flanges that have a raised face connection.  Additional in depth information about these flanges can be found on the raised face page.

  • Dimensions to ASME B16.5 – Pipe Flanges and Flanged Fittings: NPS 1/2 through NPS 24 Metric/Inch Standard
  • Bolt circle diameters are 1/8 inch larger than bolt diameter.

data sof b16.5 400 2500data sof b16.5

Pipe Size

(NPS)

Outside Diameter of Flange

A

Diameter of Raised Face

B

Thickness of Flange

C

Diameter of Bore

E

Diameter of Hub at Base

J

Length of Hub

L

Number of Bolt Holes

 

Diameter of Bolt Holes

 

Bolt Circle Diameter

P

Approx. Weight

(Lb.)

1/2 4 3/4 1 3/8 7/8 0.88 1 1/2 1 1/4 4 7/8 3 1/4 9
3/4 5 1/8 1 11/16 1 1.09 1 3/4 1 3/8 4 7/8 3 1/2 9
1 5 7/8 2 1 1/8 1.36 2 1/16 1 5/8 4 1 4 9
1 1/4 6 1/4 2 1/2 1 1/8 1.70 2 1/2 1 5/8 4 1 4 3/8
1 1/2 7 2 7/8 1 1/4 1.95 2 3/4 1 3/4 4 1 1/8 4 7/8 14
2 8 1/2 3 5/8 1 1/2 2.44 4 1/8 2 1/4 8 1 6 1/2 25
2 1/2 9 5/8 4 1/8 1 5/8 2.94 4 7/8 2 1/2 8 1 1/8 7 1/2 36
3 9 1/2 5 1 1/2 3.57 5 2 1/8 8 1 7 1/2 31
3 1/2
4 11 1/2 6 3/16 1 3/4 4.57 6 1/4 2 3/4 8 1 1/4 9 1/4 53
5 13 3/4 7 5/16 2 5.66 7 1/2 3 1/8 8 1 3/8 11 83
6 15 8 1/2 2 3/16 6.72 9 1/4 3 3/8 12 1 1/4 12 1/2 108
8 18 1/2 10 5/8 2 1/2 8.72 11 3/4 4 12 1 1/2 15 1/2 172
10 21 1/2 12 3/4 2 3/4 10.88 14 1/2 4 1/4 16 1 1/2 18 1/2 245
12 24 15 3 1/8 12.88 16 1/2 4 5/8 20 1 1/2 21 326
14 25 1/4 16 1/4 3 3/8 14.14 17 3/4 5 1/8 20 1 5/8 22 380
16 27 3/4 18 1/2 3 1/2 16.16 20 5 1/4 20 1 3/4 24 1/4 459
18 31 21 4 18.18 22 1/4 6 20 2 27 647
20 33 3/4 23 4 1/4 20.20 24 1/2 6 1/4 20 2 1/8 29 1/2 792
22
24 41 27 1/4 5 1/2 24.25 29 1/2 8 20 2 5/8 35 1/2 1480

Dimensions Slip on Flange, ANSI CLASS 900, ASME B16.5, RING TIGHT 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 to ASME B16.5 – Pipe Flanges and Flanged Fittings: NPS 1/2 through NPS 24 Metric/Inch Standard
  • Bolt circle diameters are 1/8 inch larger than bolt diameter.

data sof rtj b16.5 600 2500data 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 4 3/4 7/8 0.88 1 1/2 1 1/4 2 3/8 1 9/16 11/32 1/4 4 7/8 3 1/4
3/4 5 1/8 1 1.09 1 3/4 1 3/8 2 5/8 1 3/4 11/32 1/4 4 7/8 3 1/2
1 5 7/8 1 1/8 1.36 2 1/16 1 5/8 2 13/16 2 11/32 1/4 4 1 4
1 1/4 6 1/4 1 1/8 1.70 2 1/2 1 5/8 3 3/16 2 3/8 11/32 1/4 4 1 4 3/8
1 1/2 7 1 1/4 1.95 2 3/4 1 3/4 3 5/8 2 11/16 11/32 1/4 4 1 1/8 4 7/8
2 8 1/2 1 1/2 2.44 4 1/8 2 1/4 4 7/8 3 3/4 15/32 5/16 8 1 6 1/2
2 1/2 9 5/8 1 5/8 2.94 4 7/8 2 1/2 5 3/8 4 1/4 15/32 5/16 8 1 1/8 7 1/2
3 9 1/2 1 1/2 3.57 5 2 1/8 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 4.57 6 1/4 2 3/4 7 1/8 5 7/8 15/32 5/16 8 1 1/4 9 1/4
5 13 3/4 2 5.66 7 1/2 3 1/8 8 1/2 7 1/8 15/32 5/16 8 1 3/8 11
6 15 2 3/16 6.72 9 1/4 3 3/8 9 1/2 8 5/16 15/32 5/16 12 1 1/4 12 1/2
8 18 1/2 2 1/2 8.72 11 3/4 4 12 1/8 10 5/8 15/32 5/16 12 1 1/2 15 1/2
10 21 1/2 2 3/4 10.88 14 1/2 4 1/4 14 1/4 12 3/4 15/32 5/16 16 1 1/2 18 1/2
12 24 3 1/8 12.88 16 1/2 4 5/8 16 1/2 15 15/32 5/16 20 1 1/2 21
14 25 1/4 3 3/8 14.14 17 3/4 5 1/8 18 3/8 16 1/2 21/32 7/16 20 1 5/8 22
16 27 3/4 3 1/2 16.16 20 5 1/4 20 5/8 18 1/2 21/32 7/16 20 1 3/4 24 1/4
18 31 4 18.18 22 1/4 6 23 3/8 21 25/32 1/2 20 2 27
20 33 3/4 4 1/4 20.20 24 1/2 6 1/4 25 1/2 23 25/32 1/2 20 2 1/8 29 1/2
22
24 41 5 1/2 24.25 29 1/2 8 30 3/8 27 1/4 1 1/16 5/8 20 2 5/8 35 1/2

Dimensions Slip on Flange, ANSI CLASS 1500, ASME B16.5, 1/16″ RAISED FACE (IN) DATASHEET

This datasheet is for flanges that have a raised face connection.  Additional in depth information about these flanges can be found on the raised face page.

  • Dimensions to ASME B16.5 – Pipe Flanges and Flanged Fittings: NPS 1/2 through NPS 24 Metric/Inch Standard
  • Bolt circle diameters are 1/8 inch larger than bolt diameter.

data sof b16.5 400 2500data sof b16.5

Pipe Size

(NPS)

Outside Diameter of Flange

A

Diameter of Raised Face

B

Thickness of Flange

C

Diameter of Bore

E

Diameter of Hub at Base

J

Length of Hub

L

Number of Bolt Holes

 

Diameter of Bolt Holes

 

Bolt Circle Diameter

P

Approx. Weight

(Lb.)

1/2 4 3/4 1 3/8 7/8 0.88 1 1/2 1 1/4 4 7/8 3 1/4 9
3/4 5 1/8 1 11/16 1 1.09 1 3/4 1 3/8 4 7/8 3 1/2 9
1 5 7/8 2 1 1/8 1.36 2 1/16 1 5/8 4 1 4 9
1 1/4 6 1/4 2 1/2 1 1/8 1.70 2 1/2 1 5/8 4 1 4 3/8 10
1 1/2 7 2 7/8 1 1/4 1.95 2 3/4 1 3/4 4 1 1/8 4 7/8 14
2 8 1/2 3 5/8 1 1/2 2.44 4 1/8 2 1/4 8 1 6 1/2 25
2 1/2 9 5/8 4 1/8 1 5/8 2.94 4 7/8 2 1/2 8 1 1/8 7 1/2  
3 10 1/2 5 1 7/8 3.57 5 1/4 2 7/8 8 1 1/4 8 48
3 1/2
4 12 1/4 6 3/16 2 1/8 4.57 6 3/8 3 9/16 8 1 3/8 9 1/2 73
5 14 3/4 7 5/16 2 7/8 5.66 7 3/4 4 1/8 8 1 5/8 11 1/2 132
6 15 1/2 8 1/2 3 1/4 6.72 9 4 11/16 12 1 1/2 12 1/2 164
8 19 10 5/8 3 5/8 8.72 11 1/2 5 5/8 12 1 3/4 15 1/2 258
10 23 12 3/4 4 1/4 10.88 14 1/2 6 1/4 12 2 19 436
12 26 1/2 15 4 7/8 12.88 17 3/4 7 1/8 16 2 1/8 22 1/2 667

Dimensions Slip on Flange, ANSI CLASS 1500, ASME B16.5, RING TIGHT 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 to ASME B16.5 – Pipe Flanges and Flanged Fittings: NPS 1/2 through NPS 24 Metric/Inch Standard
  • Bolt circle diameters are 1/8 inch larger than bolt diameter.

data sof rtj b16.5 600 2500data 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 4 3/4 7/8 0.88 1 1/2 1 1/4 2 3/8 1 9/16 11/32 1/4 4 7/8 3 1/4
3/4 5 1/8 1 1.09 1 3/4 1 3/8 2 5/8 1 3/4 11/32 1/4 4 7/8 3 1/2
1 5 7/8 1 1/8 1.36 2 1/16 1 5/8 2 13/16 2 11/32 1/4 4 1 4
1 1/4 6 1/4 1 1/8 1.70 2 1/2 1 5/8 3 3/16 2 3/8 11/32 1/4 4 1 4 3/8
1 1/2 7 1 1/4 1.95 2 3/4 1 3/4 3 5/8 2 11/16 11/32 1/4 4 1 1/8 4 7/8
2 8 1/2 1 1/2 2.44 4 1/8 2 1/4 4 7/8 3 3/4 15/32 5/16 8 1 6 1/2
2 1/2 9 5/8 1 5/8 2.94 4 7/8 2 1/2 5 3/8 4 1/4 15/32 5/16 8 1 1/8 7 1/2
3 10 1/2 1 7/8 3.57 5 1/4 2 7/8 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 4.57 6 3/8 3 9/16 7 5/8 6 3/8 15/32 5/16 8 1 3/8 9 1/2
5 14 3/4 2 7/8 5.66 7 3/4 4 1/8 9 7 5/8 15/32 5/16 8 1 5/8 11 1/2
6 15 1/2 3 1/4 6.72 9 4 11/16 9 3/4 8 5/16 17/32 3/8 12 1 1/2 12 1/2
8 19 3 5/8 8.72 11 1/2 5 5/8 12 1/2 10 5/8 21/32 7/16 12 1 3/4 15 1/2
10 23 4 1/4 10.88 14 1/2 6 1/4 14 5/8 12 3/4 21/32 7/16 12 2 19
12 26 1/2 4 7/8 12.88 17 3/4 7 1/8 17 1/4 15 29/32 9/16 16 2 1/8 22 1/2
14 29 1/2 5 1/4 14.14 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 16.16 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 18.18 23 1/2 24 1/8 21 1 3/16 11/16 16 2 7/8 30 1/2
20 38 3/4 7 20.20 25 1/4 26 1/2 23 1 5/16 11/16 16 3 1/8 32 3/4
22
24 46 8 24.25 30 31 1/4 27 1/4 1 7/16 13/16 16 3 5/8 39

Dimensions Slip on Flange, ANSI CLASS 2500, ASME B16.5, 1/16″ RAISED FACE (IN) DATASHEET

This datasheet is for flanges that have a raised face connection.  Additional in depth information about these flanges can be found on the raised face page.

  • Dimensions to ASME B16.5 – Pipe Flanges and Flanged Fittings: NPS 1/2 through NPS 24 Metric/Inch Standard
  • Bolt circle diameters are 1/8 inch larger than bolt diameter.

data sof b16.5 400 2500data sof b16.5

Pipe Size

(NPS)

Outside Diameter of Flange

A

Diameter of Raised Face

B

Thickness of Flange

C

Diameter of Bore

E

Diameter of Hub at Base

J

Length of Hub

L

Number of Bolt Holes

 

Diameter of Bolt Holes

 

Bolt Circle Diameter

P

Approx. Weight

(Lb.)

1/2 5 1/4 1 3/8 1 3/16 0.88 1 11/16 1 9/16 4 7/8 3 1/2 7
3/4 5 1/2 1 11/16 1 1/4 1.09 2 1 11/16 4 7/8 3 3/4 9
1 6 1/4 2 1 3/8 1.36 2 1/4 1 7/8 4 1 4 1/4 12
1 1/4 7 1/4 2 1/2 1 1/2 1.70 2 7/8 2 1/16 4 1 1/8 5 1/8 18
1 1/2 8 2 7/8 1 3/4 1.95 3 1/8 2 3/8 4 1 1/4 5 3/4 25
2 9 1/4 3 5/8 2 2.44 3 3/4 2 3/4 8 1 1/8 6 3/4 38
2 1/2 10 1/2 4 1/8 2 1/4 2.94 4 1/2 3 1/8 8 1 1/4 7 3/4 55
3 12 5 2 5/8 3.57 5 1/4 3 5/8 8 1 3/8 9 83
3 1/2
4 14 6 3/16 3 4.57 6 1/2 4 1/4 8 1 5/8 10 3/4 127
5 16 1/2 7 5/16 3 5/8 5.66 8 5 1/8 8 1 7/8 12 3/4 210
6 19 8 1/2 4 1/4 6.72 9 1/4 6 8 2 1/8 14 1/2 323
8 21 3/4 10 5/8 5 8.72 12 7 12 2 1/8 17 1/4 485
10 26 1/2 12 3/4 6 1/2 10.88 14 3/4 9 12 2 5/8 21 1/4 925
12 30 15 7 1/4 12.88 17 3/8 10 12 2 7/8 24 3/8 1300

Dimensions Slip on Flange, ANSI CLASS 2500, ASME B16.5, RING TIGHT 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 to ASME B16.5 – Pipe Flanges and Flanged Fittings: NPS 1/2 through NPS 24 Metric/Inch Standard
  • Bolt circle diameters are 1/8 inch larger than bolt diameter.

data sof rtj b16.5 600 2500data 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 5 1/4 1 3/16 0.88 1 11/16 1 9/16 2 9/16 1 11/16 11/32 1/4 4 7/8 3 1/2
3/4 5 1/2 1 1/4 1.09 2 1 11/16 2 7/8 2 11/32 1/4 4 7/8 3 3/4
1 6 1/4 1 3/8 1.36 2 1/4 1 7/8 3 1/4 2 3/8 11/32 1/4 4 1 4 1/4
1 1/4 7 1/4 1 1/2 1.70 2 7/8 2 1/16 4 2 27/32 15/32 5/16 4 1 1/8 5 1/8
1 1/2 8 1 3/4 1.95 3 1/8 2 3/8 4 1/2 3 1/4 15/32 5/16 4 1 1/4 5 3/4
2 9 1/4 2 2.44 3 3/4 2 3/4 5 1/4 4 15/32 5/16 8 1 1/8 6 3/4
2 1/2 10 1/2 2 1/4 2.94 4 1/2 3 1/8 5 7/8 4 3/8 17/32 3/8 8 1 1/4 7 3/4
3 12 2 5/8 3.57 5 1/4 3 5/8 6 5/8 5 17/32 3/8 8 1 3/8 9
3 1/2
4 14 3 4.57 6 1/2 4 1/4 8 6 3/16 22/51 7/16 8 1 5/8 10 3/4
5 16 1/2 3 5/8 5.66 8 5 1/8 9 1/2 7 1/2 21/32 1/2 8 1 7/8 12 3/4
6 19 4 1/4 6.72 9 1/4 6 11 9 25/32 1/2 8 2 1/8 14 1/2
8 21 3/4 5 8.72 12 7 13 3/8 11 29/32 9/16 12 2 1/8 17 1/4
10 26 1/2 6 1/2 10.88 14 3/4 9 16 3/4 13 1/2 1 3/16 11/16 12 2 5/8 21 1/4
12 30 7 1/4 12.88 17 3/8 10 19 1/2 16 1 5/16 11/16 12 2 7/8 24 3/8

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