WELD FLANGE DIMENSIONS
WELDING NECK FLANGES | ||||||||
Nom. Pipe Size | 150 lb. | 300 lb | 400 lb. | 600 lb. | ||||
Outside Dia. of Flange O | Length Thru Hub Y1 | Outside Dia. of Flange O | Length Thru Hub Y1 | Outside Dia. of Flange O | Length Thru Hub Y2 | Outside Dia. of Flange O | Length Thru Hub Y2 | |
1/2 | 3-1/2 | 1-7/8 | 3-3/4 | 2-1/16 | For sizes 3-1/2 and smaller use 600 lb. Standard | 3-3/4 | 2-1/16 | |
3/4 | 3-7/8 | 2-1/16 | 4-5/8 | 2-1/4 | 4-5/8 | 2-1/4 | ||
1 | 4-1/4 | 2-3/16 | 4-7/8 | 2-7/16 | 4-7/8 | 2-7/16 | ||
1-1/4 | 4-5/8 | 2-1/4 | 5-1/4 | 2-9/16 | 5-1/4 | 2-5/8 | ||
1-1/2 | 5 | 2-7/16 | 6-1/8 | 2-11/16 | 6-1/8 | 2-3/4 | ||
2 | 6 | 2-1/2 | 6-1/2 | 2-3/4 | 6-1/2 | 2-7/8 | ||
2-1/2 | 7 | 2-3/4 | 7-1/2 | 3 | 7-1/2 | 3-1/8 | ||
3 | 7-1/2 | 2-3/4 | 8-1/4 | 3-1/8 | 8-1/4 | 3-1/4 | ||
3-1/2 | 8-1/2 | 2-13/16 | 9 | 3-3/16 | — | — | 9 | 3-3/8 |
4 | 9 | 3 | 10 | 3-3/8 | 10 | 3-1/2 | 10-3/4 | 4 |
5 | 10 | 3-1/2 | 11 | 3-7/8 | 11 | 4 | 13 | 4-1/2 |
6 | 11 | 3-1/2 | 12-1/2 | 3-7/8 | 12-1/2 | 4-1/16 | 14 | 4-5/8 |
8 | 13-1/2 | 4 | 15 | 4-3/8 | 15 | 4-5/8 | 16-1/2 | 5-1/4 |
10 | 16 | 4 | 17-1/2 | 4-5/8 | 17-1/2 | 4-7/8 | 20 | 6 |
12 | 19 | 4-1/2 | 20-1/2 | 5-1/8 | 20-1/2 | 5-3/8 | 22 | 6-1/8 |
14 | 21 | 5 | 23 | 5-5/8 | 23 | 5-7/8 | 23-3/4 | 6-1/2 |
16 | 23-1/2 | 5 | 25-1/2 | 5-3/4 | 25-1/2 | 6 | 27 | 7 |
18 | 25 | 5-1/2 | 28 | 6-1/4 | 28 | 6-1/2 | 29-1/4 | 7-1/4 |
20 | 27-1/2 | 5-11/16 | 30-1/2 | 6-3/8 | 30-1/2 | 6-5/8 | 32 | 7-1/2 |
22 | 29-1/2 | 5-7/8 | 33 | 6-1/2 | 33 | 6-3/4 | 34-1/4 | 7-3/4 |
24 | 32 | 6 | 36 | 6-5/8 | 36 | 6-7/8 | 37 | 8 |
26 | 34-1/4 | 5 | 38-1/4 | 7-1/4 | 38-1/4 | 7-5/8 | 40 | 8-3/4 |
30 | 38-3/4 | 5-1/8 | 43 | 8-1/4 | 43 | 8-5/8 | 44-1/2 | 9-3/4 |
34 | 43-3/4 | 5-5/16 | 47-1/2 | 9-1/8 | 47-1/2 | 9-1/2 | 49 | 10-5/8 |
36 | 46 | 5-3/8 | 50 | 9-1/2 | 50 | 9-7/8 | 51-3/4 | 11-1/8 |
42 | 53 | 5-5/8 | 57 | 10-7/8 | 57 | 11-3/8 | 58-3/4 | 12-3/4 |
1 The 1/16 inch raised face is included in “Length thru Hub ‘Y’.”
2 The 1/4 inch raised face is not included in “Length thru Hub ‘Y’.”
WELD FLANGE DIMENSIONS
SLIP-ON, THREADED, AND SOCKET TYPE FLANGES | ||||||||
Nom. Pipe Size | 150 lb. | 300 lb | 400 lb. | 600 lb. | ||||
Outside Dia. O | Length Thru Hub Y1 | Outside Dia. O | Length Thru Hub Y1 | Outside Dia. O | Length Thru Hub Y2 | Outside Dia. | Length Thru Hub Y2 | |
1/4 | 3-1/2 | 5/8*† | 3-3/4 | 7/8*† | For sizes 3-1/2 and smaller use 600 lb. Standard | 3-3/4 | 7/8*† | |
3/8 | 3-1/2 | 5/8*† | 3-3/4 | 7/8*† | 3-3/4 | 7/8*† | ||
1/2 | 3-1/2 | 5/8 | 3-3/4 | 7/8 | 3-3/4 | 7/8 | ||
3/4 | 3-7/8 | 5/8 | 4-5/8 | 1 | 4-5/8 | 1 | ||
1 | 4-1/4 | 11/16 | 4-7/8 | 1-1/16 | 4-7/8 | 1-1/16 | ||
1-1/4 | 4-5/8 | 13/16 | 5-1/4 | 1-1/16 | 5-1/4 | 1-1/8 | ||
1-1/2 | 5 | 7/8 | 6-1/8 | 1-3/16 | 6-1/8 | 1-1/4 | ||
2 | 6 | 1 | 6-1/2 | 1-5/16 | 6-1/2 | 1-7/16 | ||
2-1/2 | 7 | 1-1/8 | 7-1/2 | 1-1/2 | 7-1/2 | 1-5/8 | ||
3 | 7-1/2 | 1-3/16 | 8-1/4 | 1-11/16 | 8-1/4 | 1-13/16 | ||
3-1/2 | 8-1/2 | 1-1/4 | 9 | 1-3/4 | — | — | 9 | 1-15/16 |
4 | 9 | 1-5/16 | 10 | 1-7/8 | 10 | 2‡ | 10-3/4 | 2-1/8‡ |
5 | 10 | 1-7/16 | 11 | 2‡ | 11 | 2-1/8‡ | 13 | 2-3/8‡ |
6 | 11 | 1-9/16 | 12-1/2 | 2-1/16‡ | 12-1/2 | 2-1/4‡ | 14 | 2-5/8‡ |
8 | 13-1/2 | 1-3/4 | 15 | 2-7/16‡ | 15 | 2-11/16‡ | 16-1/2 | 3‡ |
10 | 16 | 1-15/16 | 17-1/2 | 2-5/8‡ | 17-1/2 | 2-7/8‡ | 20 | 3-3/8‡ |
12 | 19 | 2-3/16 | 20-1/2 | 2-7/8‡ | 20-1/2 | 3-1/8‡ | 22 | 3-5/8‡ |
14 | 21 | 2-1/4 | 23 | 3‡ | 23 | 3-5/16‡ | 23-3/4 | 3-11/16‡ |
16 | 23-1/2 | 2-1/2 | 25-1/2 | 3-1/4‡ | 25-1/2 | 3-11/16‡ | 27 | 4-3/16‡ |
18 | 25 | 2-11/16 | 28 | 3-1/2‡ | 28 | 3-7/8‡ | 29-1/4 | 4-5/8‡ |
20 | 27-1/2 | 2-7/8 | 30-1/2 | 3-3/4‡ | 30-1/2 | 4‡ | 32 | 5‡ |
22 | 29-1/2 | 3-1/8†‡ | 33 | 4†‡ | 33 | 4-1/4†‡ | 34-1/4 | 5-1/4†‡ |
24 | 32 | 3-1/4 | 36 | 4-3/16‡ | 36 | 4-1/2‡ | 37 | 5-1/2‡ |
26 | 34-1/4 | 3-3/8†‡ | 38-1/4 | 7-1/4†‡ | 38-1/4 | 7-5/8†‡ | 40 | 8-3/4†‡ |
30 | 38-3/4 | 3-1/2†‡ | 43 | 8-1/4†‡ | 43 | 8-5/8†‡ | 44-1/2 | 9-3/4†‡ |
34 | 43-3/4 | 3-11/16†‡ | 47-1/2 | 9-1/8†‡ | 47-1/2 | 9-1/2†‡ | 49 | 10-5/8†‡ |
36 | 46 | 3-3/4†‡ | 50 | 9-1/2†‡ | 50 | 9-7/8†‡ | 51-3/4 | 11-1/8†‡ |
42 | 53 | 4†‡ | 57 | 10-7/8†‡ | 57 | 11-3/8†‡ | 58-3/4 | 12-3/4†‡ |
1 The 1/16 inch raised face is included in “Length thru Hub ‘Y’.”
2 The 1/4 inch raised face is not included in “Length thru Hub ‘Y’.”
* Not available in Slip-On type.
† Not available in Threaded type.
‡ Not available in Socket type.
WELD FLANGE DIMENSIONS
LAP JOINT FLANGES | ||||||||
Nom. Pipe Size | 150 lb. | 300 lb | 400 lb. | 600 lb. | ||||
Outside Dia. of Flange O | Length Thru Hub Z1 | Outside Dia. of Flange O | Length Thru Hub Z1 | Outside Dia. of Flange O | Length Thru Hub Z2 | Outside Dia. of Flange O | Length Thru Hub Z2 | |
1/2 | 3-1/2 | 5/8 | 3-3/4 | 7/8 | For sizes 3-1/2 and smaller use 600 lb. Standard | 3-3/4 | 7/8 | |
3/4 | 3-7/8 | 5/8 | 4-5/8 | 1 | 4-5/8 | 1 | ||
1 | 4-1/4 | 11/16 | 4-7/8 | 1-1/16 | 4-7/8 | 1-1/16 | ||
1-1/4 | 4-5/8 | 13/16 | 5-1/4 | 1-1/16 | 5-1/4 | 1-1/8 | ||
1-1/2 | 5 | 7/8 | 6-1/8 | 1-3/16 | 6-1/8 | 1-1/4 | ||
2 | 6 | 1 | 6-1/2 | 1-5/16 | 6-1/2 | 1-7/16 | ||
2-1/2 | 7 | 1-1/8 | 7-1/2 | 1-1/2 | 7-1/2 | 1-5/8 | ||
3 | 7-1/2 | 1-3/16 | 8-1/4 | 1-11/16 | 8-1/4 | 1-13/16 | ||
3-1/2 | 8-1/2 | 1-1/4 | 9 | 1-3/4 | — | — | 9 | 1-15/16 |
4 | 9 | 1-5/16 | 10 | 1-7/8 | 10 | 2 | 10-3/4 | 2-1/8 |
5 | 10 | 1-7/16 | 11 | 2 | 11 | 2-1/8 | 13 | 2-3/8 |
6 | 11 | 1-9/16 | 12-1/2 | 2-1/16 | 12-1/2 | 2-1/4 | 14 | 2-5/8 |
8 | 13-1/2 | 1-3/4 | 15 | 2-7/16 | 15 | 2-11/16 | 16-1/2 | 3 |
10 | 16 | 1-15/16 | 17-1/2 | 3-3/4 | 17-1/2 | 4 | 20 | 4-3/8 |
12 | 19 | 2-3/16 | 20-1/2 | 4 | 20-1/2 | 4-1/4 | 22 | 4-5/8 |
14 | 21 | 3-1/8 | 23 | 4-3/8 | 23 | 4-5/8 | 23-3/4 | 5 |
16 | 23-1/2 | 3-7/16 | 25-1/2 | 4-3/4 | 25-1/2 | 5 | 27 | 5-1/2 |
18 | 25 | 3-13/16 | 28 | 5-1/8 | 28 | 5-3/8 | 29-1/4 | 6 |
20 | 27-1/2 | 4-1/16 | 30-1/2 | 5-1/2 | 30-1/2 | 5-3/4 | 32 | 6-1/2 |
24 | 32 | 4-3/8 | 36 | 6 | 36 | 6-1/4 | 37 | 7-1/4 |
WELD FLANGE DIMENSIONS
BLIND FLANGES | ||||||||
Nom. Pipe Size | 150 lb. | 300 lb | 400 lb. | 600 lb. | ||||
Outside Dia. of Flange O | Thick- ness Q1 | Outside Dia. of Flange O | Thick- ness Q1 | Outside Dia. of Flange O | Thick- ness Q2 | Outside Dia. of Flange O | Thick- ness Q2 | |
1/2 | 3-1/2 | 7/16 | 3-3/4 | 9/16 | For sizes 3-1/2 and smaller use 600 lb. Standard | 3-3/4 | 9/16 | |
3/4 | 3-7/8 | 1/2 | 4-5/8 | 5/8 | 4-5/8 | 5/8 | ||
1 | 4-1/4 | 9/16 | 4-7/8 | 11/16 | 4-7/8 | 11/16 | ||
1-1/4 | 4-5/8 | 5/8 | 5-1/4 | 3/4 | 5-1/4 | 13/16 | ||
1-1/2 | 5 | 11/16 | 6-1/8 | 13/16 | 6-1/8 | 7/8 | ||
2 | 6 | 3/4 | 6-1/2 | 7/8 | 6-1/2 | 1 | ||
2-1/2 | 7 | 7/8 | 7-1/2 | 1 | 7-1/2 | 1-1/8 | ||
3 | 7-1/2 | 15/16 | 8-1/4 | 1-1/8 | 8-1/4 | 1-1/4 | ||
3-1/2 | 8-1/2 | 15/16 | 9 | 1-3/16 | 9 | 1-3/8 | ||
4 | 9 | 15/16 | 10 | 1-1/4 | 10 | 1-3/8 | 10-3/4 | 1-1/2 |
5 | 10 | 15/16 | 11 | 1-3/8 | 11 | 1-1/2 | 13 | 1-3/4 |
6 | 11 | 1 | 12-1/2 | 1-7/16 | 12-1/2 | 1-5/8 | 14 | 1-7/8 |
8 | 13-1/2 | 1-1/8 | 15 | 1-5/8 | 15 | 1-7/8 | 16-1/2 | 2-3/16 |
10 | 16 | 1-3/16 | 17-1/2 | 1-7/8 | 17-1/2 | 2-1/8 | 20 | 2-1/2 |
12 | 19 | 1-1/4 | 20-1/2 | 2 | 20-1/2 | 2-1/4 | 22 | 2-5/8 |
14 | 21 | 1-3/8 | 23 | 2-1/8 | 23 | 2-3/8 | 23-3/4 | 2-3/4 |
16 | 23-1/2 | 1-7/16 | 25-1/2 | 2-1/4 | 25-1/2 | 2-1/2 | 27 | 3 |
18 | 25 | 1-9/16 | 28 | 2-3/8 | 28 | 2-5/8 | 29-1/4 | 3-1/4 |
20 | 27-1/2 | 1-11/16 | 30-1/2 | 2-1/2 | 30-1/2 | 2-3/4 | 32 | 3-1/2 |
22 | 29-1/2 | 1-13/16 | 33 | 2-5/8 | 33 | 2-7/8 | 34-1/4 | 3-3/4 |
24 | 32 | 1-7/8 | 36 | 2-3/4 | 36 | 3 | 37 | 4 |
26 | 34-1/4 | 2 | 38-1/4 | 3-1/8 | 38-1/4 | 3-1/2 | 40 | 4-1/4 |
30 | 38-3/4 | 2-1/8 | 43 | 3-5/8 | 43 | 4 | 44-1/2 | 4-1/2 |
34 | 43-3/4 | 2-5/16 | 47-1/2 | 4 | 47-1/2 | 4-3/8 | 49 | 4-3/4 |
36 | 46 | 2-3/8 | 50 | 4-1/8 | 50 | 4-1/2 | 51-3/4 | 4-7/8 |
42 | 53 | 2-5/8 | 57 | 4-5/8 | 57 | 5-1/8 | 58-3/4 | 5-1/2 |
1 The 1/16 inch raised face is included in “Length thru Hub ‘Z’” and “Thickness ‘Q’.”
2 The 1/4 inch raised face is not included in “Length thru Hub ‘Z’” and “Thickness ‘Q’.”