EBG Flow Products: 300#

300# \| 600# \| 900# \| 1500# \| 2500#

Table 1 Class 300 Orifice Flanges, Welding Neck, Slip-On, and Threaded (notes 3, 4)

Nominal Pipe Size	Outside Diameter of Raised Face - R	Outside Diameterof Flange - O	Thickness of Flange, Min. - C	Length Through Hub		Diameter of Hub - X	Hub Diameter Beginning of Chamfer (W.N.) - A	Diamter of Counterbore		Counterbore Depth (From Face)		Bore		Diameter of Pressure Connection - TT	Drilling Template				Bolt Length {(5), (6)]		Depth of Socket - L
Nominal Pipe Size	Outside Diameter of Raised Face - R	Outside Diameterof Flange - O	Thickness of Flange, Min. - C	Slip-On and Threaded Y2	Weld Neck Y1	Diameter of Hub - X	Hub Diameter Beginning of Chamfer (W.N.) - A	Back Q_B	Face Qf	F	G	Slip-On B2	Weld Neck B1	Diameter of Pressure Connection - TT	Bolt Circle	Number of Holes	Diameter of Holes	Diameter of Bolts	Machine Bolts	Stud Bolts	Depth of Socket - L
1/2"	1.375	3.750	1.50	1.812	3.000	1.50	0.84	0.93	0.622	1.562	0.78	0.88	See Note (7).	1/8	2.625	4	0.625	1/2	4.50	5.00	1/2
3/4"	1.875	4.625	1.50	1.875	3.125	1.875	1.05	1.14	1.00	1.500	0.71	1.09		1/8	3.250	4	0.75	5/8	4.50	5.00	1/2
1"	2.00	4.88	1.50	1.88	3.25	2.12	1.32	1.41	1.30	1.44	0.75	1.36		1/4	3.50	4	0.69	5/8	4.50	5.00	1/2
1-1/2"	2.88	6.12	1.50	1.88	3.38	2.75	1.90	1.99	1.89	1.47	0.72	1.95		1/4	4.50	4	0.81	3/4	4.75	5.25	5/8
2"	3.62	6.50	1.50	1.94	3.38	3.31	2.38	2.50	2.36	1.50	0.69	2.44		1/4	5.00	8	0.69	5/8	4.50	5.00	1-1/16
2-1/2"	4.12	7.50	1.50	2.00	3.50	3.94	2.88	3.00	2.84	1.75	0.56	2.94		1/4	5.88	8	0.81	3/4	4.75	5.25	3/4
3"	5.00	8.25	1.50	2.06	3.50	4.62	3.50	3.63	3.46	1.81	0.56	3.57		3/8	6.62	8	0.81	3/4	4.75	5.25	13/16
4"	6.19	10.00	1.50	2.12	3.62	5.75	4.50	4.63	4.45	1.88	0.56	4.57		1/2	7.88	8	0.81	3/4	4.75	5.25	15/16
6"	8.50	12.50	1.50	2.12	3.94	8.12	6.63	6.75	6.57	1.88	0.31	6.72		1/2	10.62	12	0.88	3/4	4.75	5.25	-
8"	10.62	15.00	1.62	2.44	4.38	10.25	8.63	8.75	8.55	2.19	0.44	8.72		1/2	13.00	12	1.00	7/8	5.00	5.75	-
10"	12.75	17.50	1.88	2.62	4.62	12.62	10.75	See Note (8).				10.88		1/2	15.25	16	1.12	1	5.75	6.50	-
12"	15.00	20.50	2.00	2.88	5.12	14.75	12.75					12.88		1/2	17.75	16	1.25	1-1/8	6.25	7.00	-
14"	16.25	23.00	2.12	3.00	5.62	16.75	14.00					14.14		1/2	20.25	20	1.25	1-1/8	6.50	7.25	-
16"	18.50	25.50	2.25	3.25	5.75	19.00	16.00					16.16		1/2	22.50	20	1.38	1-1/4	7.00	7.75	-
18"	21.00	28.00	2.38	3.50	6.25	21.00	18.00					18.18		1/2	24.75	24	1.38	1-1/4	7.50	8.50	-
20"	23.00	30.50	2.50	3.75	6.38	23.12	20.00					20.20		1/2	27.00	24	1.38	1-1/4	7.50	8.50	-
24"	27.25	36.00	2.75	4.19	6.62	27.62	24.00					24.25		1/2	32.00	24	1.62	1-1/2	8.25	9.50	-

Notes:

Other NPT sizes may be furnished if required.
For slip-on and threaded flanges, verify that TT drilling extends to inside diameter of pipe after assembly and is free from burrs.
Weld neck flanges NPS 3 and smaller are identical to Class 600 flanges and may be so marked.
All other dimensions are in accordance with ASME B16.5.
Bolt lengths include allowance for orifice and gasket thickness of 0.25 in. for NPS 1 - 12 and 0.38 in. for NPS 14 - 24.
In conformance with ASME B16.5, stud bolt lengths do not include point heights.
Bore diameter of weld neck flanges is to be specified by the purchaser.
Threaded flanges are furnished in NPS 1 - 8 only.

300# \| 600# \| 900# \| 1500# \| 2500#