Dimension for Orifice Flanges, Welding Neck ASME B 16.36 Class 600

Blind Orifice flanges ASMEB B 16.36 Dimension

 

Nominal Pipe Size	Outside Diameter of Raised Face	Outside Diameter of Flange	Minimum Thickness of flange	Length Through Hub	Length Through Hub	Diameter of Hub,	Hub Diameter Beginning	Diameter of counter bore	Diameter of counter bore	Counter bore Depth (From Face)	Counter bore Depth (From Face)	Bore	Bore	Diameter of Pressure Connection,	Drilling Template	Drilling Template	Drilling Template	Drilling Template	Bolt Length [(3), (4)]	Bolt Length [(3), (4)]
	R	S	tf	Slip-On and Threaded Y2	Weld Neck Y1	X	oh Chamfer (W.N), A	Back Q8	Face Qf	F	G	Slip-On B2	Weld Neck, B1	TT	Bolt Circle	Number of Holes	Diameter of Holes	Diameter of Bolts	Machine Bolts	Stud Bolts
1	50.8	125	36.6	81	2	R16	50.8	6.35	8.74	0.8	25.4	54	33.5	(4)	6.4	88.9	4	11/16	3/4	5/8
1 1/2	73	155	36.6	84	2	R20	68.27	6.35	8.74	0.8	25.4	70	48.3	(4)	6.4	114.3	4	13/16	7/8	3/4
2	92.1	165	36.6	84	2	R23	82.55	7.92	11.91	0.8	27.0	84	60.3	(4)	6.4	127	8	11/16	3/4	5/8
2 1/2	104.8	190	36.6	87	2	R26	101.6	7.92	11.91	0.8	27.0	100	73	(4)	6.4	149.2	8	13/16	7/8	3/4
3	127	210	36.6	87	2	R31	123.83	7.92	11.91	0.8	27.0	117	88.9	(4)	9.5	168.3	8	13/16	7/8	3/4
4	157.2	275	38.1	102	7	R37	149.23	7.92	11.91	0.8	27.0	152	114.3	(4)	12.7	215.9	8	1	1	7/8
6	215.9	355	47.7	117	7	R45	211.12	7.92	11.91	0.8	27.0	222	168.3	(4)	12.7	292.1	12	1 1/8	1 1/8	1
8	269.9	420	55.6	133	7	R49	269.88	7.92	11.91	0.8	27.0	273	219.1	(4)	12.7	349.2	12	1 1/4	1 1/4	1 1/8
10	323.8	510	63.5	152	7	R53	323.85	7.92	11.91	0.8	27.0	343	273.0	(4)	12.7	413.8	16	1 3/8	1 3/8	1 1/4
12	381.0	560	66.7	156	7	R57	381.00	7.92	11.91	0.8	27.0	400	323.8	(4)	12.7	489	20	1 3/8	1 3/8	1 1/4
14	412.8	605	69.9	165	7	R61	419.10	7.92	11.91	0.8	27.0	432	355.6	(4)	12.7	527.0	20	1 1/2	1 1/2	1 3/8
16	469.9	685	76.2	178	7	R65	469.90	7.92	11.91	0.8	30.2	495	406.4	(4)	12.7	603.2	20	1 5/8	1 5/8	1 1/2
18	533.4	745	82.6	184	7	R69	533.40	7.92	11.91	0.8	30.2	546	457.2	(4)	12.7	654.0	20	1 3/4	1 3/4	1 5/8
20	584.2	815	88.9	190	7	R73	584.20	9.53	13.39	1.5	31.8	610	508.0	(4)	12.7	723.9	24	1 3/4	1 3/4	1 5/8
24	692.2	940	101.6	203	7	R77	692.15	11.13	16.66	1.5	36.5	718	609.6	(4)	12.7	838.2	24	2	2	1 7/8
18	533.4	745	82.6	184	7	R69	533.40	7.92	11.91	0.8	30.2	546	457.2	(4)	12.7	654.0	20	1 3/4	1 3/4	1 5/8
20	584.2	815	88.9	190	7	R73	584.20	9.53	13.39	1.5	31.8	610	508.0	(4)	12.7	723.9	24	1 3/4	1 3/4	1 5/8
24	692.2	940	101.6	203	7	R77	692.15	11.13	16.66	1.5	36.5	718	609.6	(4)	12.7	838.2	24	2	2	1 7/8

 

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GENERAL NOTES:

(a) Dimensions are millimeters, except for bolt holes. Reference Mandatory Appendix l for U.S Customary.

(b) weld neck flnges NPS 3 and identical to Class flanges except for bolting and be used for such service

(c) All other dimentions are in accordance with ASME B16.5

(d) Ring joint flange in NPS 24 will require an angular meter tap as shown in Fig.2

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