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Technical Library > FLANGES > FLANGES DIMENSIONS AND WEIGHTS > ASME Slip On Flanges Size Chart
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DIMENSIONS AND WEIGHT OF SLIP-ON FLANGES


In this article, we show the dimensions and weights of slip-on flanges, including bolting requirements, by nominal size (from 1/2 to 24 inches) and pressure rating (from class 150 to class 600). At the bottom of this page, you will find a more in-depth description of fillet welds.


Slip on flanges, as the name indicates, slip over the pipe and are then welded onto it. This type of flange is manufactured with an inside diameter that is slightly bigger than the outside diameter of the connecting pipe (so the flange can slip over). The flange is welded to the pipe via fillet weld at its top and bottom.

Slip on pipe flanges are available with a raised or flat face. The standard height of a raised face slip-on flange is 1/16″ for pressures classes below 400# and 1/4″ for classes above 400#. These types of flanges are manufactured to specs ANSI/ASME and AWWA.

fillet welds on slip on flanges

The image shows the fillet welds on slip-on flanges.

ASME B16.5 CLASS 150 SLIP ON FLANGES DIMENSIONS AND WEIGHTS

Slip on flanges dimensions, weight and bolting ASMESlip on flange ASNI Class 150

ø D b g m J h k Holes l Kg.
1/2″ 88,9 11,1 34,9 30,2 22,3 15,9 60,3 4 15,9 0,400
3/4″ 98,4 12,7 42,9 38,1 27,7 15,9 69,8 4 15,9 0,700
1″ 107,9 14,3 50,8 49,2 34,5 17,5 79,4 4 15,9 0,800
1/4″ 117,5 15,9 63,5 58,8 43,2 20,6 88,9 4 15,9 1,100
1/2″ 127,0 17,5 73,0 65,1 49,5 22,2 98,4 4 15,9 1,400
2″ 152,4 19,0 92,1 77,8 62,0 25,4 120,6 4 19,0 2,200
1/2″ 177,8 22,2 104,8 90,5 74,7 28,6 139,7 4 19,0 3,600
3″ 190,5 23,8 127,0 107,9 90,7 30,2 152,4 4 19,0 4,100
1/2″ 215,9 23,8 139,7 122,2 103,4 31,7 177,8 8 19,0 5,200
4″ 228,6 23,8 157,2 134,9 116,1 33,3 190,5 8 19,0 5,600
5″ 254,0 23,8 185,7 163,6 143,8 36,5 215,9 8 22,2 6,300
6″ 279,4 25,4 215,9 192,1 170,7 39,7 241,3 8 22,2 7,500
8″ 342,9 28,6 269,9 246,1 221,5 44,4 298,4 8 22,2 12,600
10″ 406,4 30,2 323,8 304,8 276,3 49,2 361,9 12 25,4 18,500
12″ 482,6 31,7 381,0 365,1 327,1 55,6 431,8 12 25,5 28,000
14″ 533,4 34,9 412,7 400,0 359,1 57,1 476,2 12 28,6 36,000
16″ 596,9 36,5 469,9 457,2 410,5 63,5 539,7 16 28,6 46,000
18″ 635,0 39,7 533,4 504,8 461,8 68,3 577,8 16 31,7 50,000
20″ 698,5 42,9 584,2 558,8 513,1 73,0 635,0 20 31,7 64,000
22″ 749,3 46,0 641,2 609,6 564,4 79,4 692,1 20 34,9 72,000
24″ 812,8 47,6 692,1 663,6 615,9 82,5 749,3 20 34,9 89,000

 

ASME B16.5 CLASS 300 SLIP ON FLANGES DIMENSIONS AND WEIGHTS

Slip on flanges dimensions, weight and bolting ASMESlip on flange ASNI Class 300

ø D b g m J h k Holes l Kg.
1/2″ 95,6 14,3 34,9 38,1 22,3 22,2 66,7 4 15,9 0,700
3/4″ 117,5 15,9 42,9 47,6 27,7 25,4 82,5 4 19,0 1,100
1″ 123,8 17,5 50,8 54,0 34,5 27,0 88,9 4 19,0 1,400
1/4″ 133,3 19,0 63,5 63,5 43,2 27,0 98,4 4 19,0 1,800
1/2″ 155,6 20,6 73,0 69,8 49,5 30,2 114,3 4 22,2 2,600
2″ 165,1 22,2 92,1 84,1 62,0 33,3 127,0 8 19,0 3,400
1/2″ 190,5 25,4 104,8 100,0 74,7 38,1 149,2 8 22,2 4,400
3″ 209,5 28,6 127,0 117,5 90,7 42,9 168,3 8 22,2 6,100
1/2″ 228,6 30,2 139,7 133,3 103,4 44,4 184,1 8 22,2 7,500
4″ 254,0 31,7 157,2 146,0 116,1 47,6 200,0 8 22,2 10,100
5″ 279,4 34,9 185,7 177,8 143,8 50,8 234,9 8 22,2 12,500
6″ 317,5 36,5 215,9 206,4 170,7 52,4 269,9 12 22,2 14,100
8″ 381,0 41,3 269,9 260,3 221,5 61,9 330,2 12 25,4 24,800
10″ 444,5 47,6 323,8 320,7 276,3 66,7 387,3 16 28,6 37,100
12″ 520,7 50,8 381,0 374,6 327,1 73,0 450,8 16 31,7 50,000
14″ 584,2 54,0 412,7 425,4 359,1 76,2 514,3 20 31,7 70,000
16″ 647,7 57,1 469,9 482,6 410,5 82,5 571,5 20 34,9 90,000
18″ 711,2 60,3 533,4 533,4 461,8 88,9 628,6 24 34,9 112,000
20″ 774,7 63,5 584,2 584,2 513,1 95,2 685,8 24 34,9 133,000
22″ 838,2 66,7 641,2 641,2 564,4 101,6 742,9 24 41,3 197,000
24″ 914,4 69,8 692,1 701,7 615,9 106,4 812,8 24 41,3 208,000

 

ASME B16.5 CLASS 600 SLIP ON FLANGES DIMENSIONS AND WEIGHTS

Slip on flanges dimensions, weight and bolting ASMESlip on flange ASNI Class 600

ø D b g m J h k Holes l Kg.
1/2″ 95,2 14,3 34,9 38,1 22,3 22,2 66,7 4 15,9 0,800
3/4″ 117,5 15,9 42,9 47,6 27,7 25,4 82,5 4 19,0 1,400
1″ 123,8 17,5 50,8 54,0 34,5 27,0 88,9 4 19,0 1,600
1/4″ 133,3 20,6 63,5 63,5 43,2 28,6 98,4 4 19,0 2,100
1/2″ 155,6 22,2 73,0 69,8 49,5 31,7 114,3 4 22,2 3,100
2″ 165,1 25,4 92,1 84,1 62,0 36,5 127,0 8 19,0 3,700
1/2″ 190,5 28,6 104,8 100,0 74,7 41,3 149,2 8 22,2 5,400
3″ 209,5 31,7 127,0 117,5 90,7 46,0 168,3 8 22,2 7,300
1/2″ 228,6 34,9 139,7 133,3 103,4 49,2 184,1 8 25,4 8,900
4″ 273,0 38,1 157,2 152,4 116,1 54,0 215,9 8 25,4 11,800
5″ 330,2 44,4 185,7 188,9 143,8 60,3 266,7 8 28,6 24,500
6″ 355,6 47,6 215,9 222,2 170,7 66,7 292,1 12 28,6 29,500
8″ 419,1 55,6 269,9 273,0 221,5 76,2 349,2 12 31,7 43,000
10″ 508,0 63,5 323,8 342,8 276,3 85,7 431,8 16 34,9 70,000
12″ 558,8 66,7 381,0 400,0 327,1 92,1 488,9 20 34,9 86,000
14″ 603,2 69,8 412,7 431,8 359,1 93,7 527,0 20 38,1 100,000
16″ 685,8 76,2 469,9 495,3 410,5 106,4 603,2 20 41,3 142,000
18″ 742,9 82,5 533,4 546,1 461,8 117,5 654,0 20 44,4 175,000
20″ 812,8 88,9 584,2 609,6 513,1 127,0 723,9 24 44,4 232,000
22″ 869,9 95,2 641,2 666,7 564,4 133,3 777,9 24 47,6 292,000
24″ 939,8 101,6 692,1 717,5 615,9 139,7 838,2 24 50,8 330,000

WHAT IS A FILLET WELD?

The American Welding Society (AWS) defines a fillet weld as “A weld of approximately triangular cross section joining two surfaces approximately at right angles to each other in a lap joint, T-joint, or corner joint.” The different types of fillet welds are shown in the image:

Types of fillet welds

A fillet weld is made by the legs, the toes, the face, the throat, and the root as shown in the image below. The throat of a fillet weld, which is used to calculate its strength, can be defined as the distance between the root and face of the weld.

The anatomy of a fillet weld

The basic fillet weld symbol consists of a reference line, an arrow line, the tail, Weld Procedure Specification (WPS) information, and the fillet weld symbol including leg size. The most common elements of a fillet weld are shown in the picture below.
The reference line is always drawn horizontally, it contains the weld type information and connects the arrow line and the tail. The arrow line points to the weld location. The underside of the reference line is referred to as the arrow side, weld symbols drawing on this side of the reference line are placed to the arrow side of the components; weld symbols located above the reference line are placed on the components to the side opposite the arrow.
The tail is actually an optional element and contains information regarding the weld. The WPS identifies the procedures and parameters that the welder uses to execute the weld. Notes and other information on the weld can be included in the tail. The fillet weld symbol is represented as a triangle. The leg size of the fillet weld is placed to the left of the fillet symbol. Most, but not all fillet welds are of equal legs. When the legs are not equal the leg sizes are indicated for example by 1 x 1.25. At the juncture of the reference line and tail, a circle indicates the fillet welds go entirely around the feature the arrow line is pointing at. Commonly applied to circular features, this instruction is not limited to them. A darkened flag at the juncture of the reference line and tail indicates the weld is to be performed in the field.

WPS of fillet welds

Fillet welds do not have to be continuous, the length and pitch between centers of an intermittent fillet weld are shown to the right of the fillet weld symbol. Fillets welds are not necessarily limited to one side of the components to be joined. Fillets welds can be made on both the arrow side and opposite side of the components. These fillet welds could be continuous or intermittent.

The face of a fillet weld can be required to be flat, convex, or concave. If the face requires finish processing it could be chipped (C), ground (G), hammered (H), machined (M), rolled (R), or peened (P) as shown in the picture:

Contour of fillet welds

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