ASME B16.5 Welding Neck Flange Class 1500

Technical Drawing

Dimensions and Weights

Size	D	T	G	t
1/2''	120	22.3	34.9	7.0
3/4''	130	25.4	42.9	7.0
1''	150	28.6	50.8	7.0
1-1/4''	160	28.6	63.5	7.0
1-1/2''	180	31.8	73.0	7.0
2''	215	38.1	92.1	7.0
2-1/2''	245	41.3	104.8	7.0
3''	265	47.7	127.0	7.0
4''	310	54.0	157.2	7.0
5''	375	73.1	185.7	7.0
6''	395	82.6	215.9	7.0
8''	485	92.1	269.9	7.0
10''	585	108.0	323.8	7.0
12''	675	123.9	381.0	7.0
14''	750	133.4	412.8	7.0
16''	825	146.1	469.9	7.0
18''	915	162.0	533.4	7.0
20''	985	177.8	584.2	7.0
24''	1170	203.2	692.2	7.0

*The dimensions of outside diameter, flange thickness, and raised face of ASME B16.5 Class 1500 welding neck flange. D: outside diameter of flange; T: flange thickness; t: height of raised face; G: outside diameter of raised face; all units are mm.

Size	K	n	d	l	L
1/2''	82.6	4	7/8	3/4	110
3/4''	88.9	4	7/8	3/4	115
1''	101.6	4	1	7/8	125
1-1/4''	111.1	4	1	7/8	125
1-1/2''	123.8	4	1-1/8	1	140
2''	165.1	8	1	7/8	145
2-1/2''	190.5	8	1-1/8	1	160
3''	203.2	8	1-1/4	1-1/8	180
4''	241.3	8	1-3/8	1-1/4	195
5''	292.1	8	1-5/8	1-1/2	250
6''	317.5	12	1-1/2	1-3/8	260
8''	393.7	12	1-3/4	1-5/8	290
10''	482.6	12	2	1-7/8	3350
12''	571.5	16	2-1/8	2	375
14''	635.0	16	2-3/8	2-1/4	405
16''	704.8	16	2-5/8	2-1/2	445
18''	774.7	16	2-7/8	2-3/4	495
20''	831.8	16	3-1/8	3	540
24''	990.6	16	3-5/8	3-1/2	615

*The bolting dimensions of ASME B16.5 Class 1500 welding neck flange. K: diameter of bolt circle; n: number of bolts; d: diameter of bolt holes; l: diameter of bolts; L: length of stud bolts for 7 mm raised face flange; The length of the stud bolt does not include the height of the points. All units are mm except that d and l are provided in inch.

Size	Y	X	A	Ms
1/2''	60	38	21.3	1.87
3/4''	70	44	26.7	2.56
1''	73	52	33.4	3.74
1-1/4''	73	64	42.2	4.33
1-1/2''	83	70	48.3	5.94
2''	102	105	60.3	10.8
2-1/2''	105	124	73.0	15.0
3''	117	133	88.9	19..9
4''	124	162	114.3	29.9
5''	156	197	141.3	55.4
6''	171	229	168.3	68.4
8''	213	292	219.1	117
10''	254	368	273.0	194
12''	283	451	323.8	288
14''	298	495	355.6	380
16''	311	552	406.4	485
18''	327	597	457.0	644
20''	356	641	508.0	775
24''	406	762	610.0	1232

*The dimensions of hub and weights for ASME B16.5 Class 1500 welding neck flange. Y: length through hub; X: diameter of hub at base; A: diameter of hub at top welding point; Ms: approximate weights/ masses of the flange; Generally, the bore diameter B of flange is equal to A minus two times of nominal wall thickness of adjoining pipe. All dimensions are in mm and the weights are in kg.

ASME B16.5 WN Flanges: Dimensions & Weights
Class150	Class 300	Class 400	Class 600
Class 900	Class 1500	Class 2500	-

*Click to view the dimensions and weights for other pressure ratings.