FLANGES – DIMENSIONS OF JOINT FACINGS

Nominal Pipe Size								Groove Number	Groove Dimensions				Diameter of Raised Portion K
Class 150		Class 300	Class 400	Class 600	Class 900	Class 1500	Class 2500		Pitch Diameter	Depth(1)	Width	Radius At bottom	Class 150	Class 300 400 600	Class 900	Class 1500	Class 2500
Class 150		Class 300	Class 400	Class 600	Class 900	Class 1500	Class 2500		P	E	F	R
in.		½		½				R11	1.344	0.219	0.281	0.03		2.00
mm									34.138	5.563	7.137	0.076		50.80
in.						½		R12	1.562	0.250	0.344	0.03				2.38
mm									39.675	6.350	8.738	0.076				60.45
in.		¾	Use Class 600 in NPS ½ to NPS 3 ½ for Class 400	¾	Use Class 1500 in NPS ½ to NPS 2 ½ for Class 900		½	R13	1.688	0.250	0.344	0.03		2.50			2.56	Use Class 600 in NPS ½ to NPS 3 ½ for Class 400	Use Class 1500 in NPS ½ to NPS 2 ½ for Class 900
mm									42.875	6.350	8.738	0.076		63.50			65.02
in.						¾		R14	1.750	0.250	0.344	0.03				2.62
mm									44.450	6.350	8.738	0.076				66.55
in.	1							R15	1.875	0.250	0.344	0.03	2.50
mm									47.625	6.350	8.738	0.076	63.50
in.		1		1		1	¾	R16	2.000	0.250	0.344	0.03		2.75		2.81	2.88
mm									50 800	6.350	8.738	0.076		69.85		71.37	73.15
in.	1 ¼							R17	2.250	0.250	0.344	0.03	2.88
mm									57.150	6.350	8.738	0.076	73.15
in.		1 ¼		1 ¼		1 ¼	1	R18	2.375	0 250	0.344	0.03		3.12		3.19	3.25
mm									60.325	6 350	8.738	0.076		79.25		81.03	82.55
in.	1 ½							R19	2.562	0.250	0.344	0.03	3.25
mm									65.075	6.350	8.738	0.076	82.55
in.		1 ½		1 ½		1 ½		R20	2.688	0.250	0.344	0.03		3.56		3.62
mm									68.275	6.350	8.738	0.076		90.42		91.95
in.							1 ¼	R21	2.844	0.312	0.469	0.03					4.00
mm									72.238	7.925	11.913	0.076					101.60
in.	2							R22	3.250	0.250	0.344	0.03	4.00
mm									82.550	6.350	8.738	0.076	101.60
in.		2		2			1 ½	R23	3.250	0.312	0.469	0.03		5.00			4.50
mm									82.550	7.925	11.913	0.076		127.00			114.30
in.						2		R24	3.750	0.312	0.469	0.03				4.88
mm									95.250	7.925	11.913	0.076				123.95
in.	2½							R25	4.000	0.250	0.344	0.03	4.75
mm									101.600	6.350	8.738	0.076	120.65
in.		2 ½		2 ½			2	R26	4.000	0.312	0.469	0.03					5.25
mm									101.600	7.925	11.913	0.076					133.35
in.						2 ½		R27	4.250	0.312	0.469	0.03				5.38
mm									107.950	7.925	11.913	0.076				136.65
in.							2 ½	R28	4.375	0.375	0.531	0.06					5.88
mm									111.125	9.525	13.487	1.52					149.35
in.		3						R29	4.500	0.250	0.344	0.03	5.25
mm									114.300	6.350	8.738	0.076	133.35

Nominal Pipe Size								Groove Number	Groove Dimensions				Diameter of Raised Portion K
Class 150		Class 300	Class 400	Class 600	Class 900	Class 1500	Class 2500		Pitch Diameter	Depth(1)	Width	Radius At bottom	Class 150	Class 300 400 600	Class 900	Class 1500	Class 2500
Class 150		Class 300	Class 400	Class 600	Class 900	Class 1500	Class 2500		P	E	F	R	Class 150	Class 300 400 600	Class 900	Class 1500	Class 2500
in.		**		**				R30	4.625	0.312	0.469	0.03
mm									117.475	7.925	11.913	0.76
in.		3**		3**	3			R31	4.875	0.312	0.469	0.03		5.75	6.12
mm									123.825	7.925	11.913	0.76		146.05	155.45
in.							3	R32	5.000	0.375	0.531	0.06					6.62
mm									127.000	9.525	13.487	1.52					168.15
in.	3 ½							R33	5 188	0 250	0.344	0 03	6.06
mm									131 775	6 350	8.738	0 76	153.92
in.		3 ½		3 ½				R34	5.188	0.312	0.469	0.03		6.25
mm									131.775	7.925	11.913	0.76		158.75
in.						3		R35	5.375	0.312	0.469	0.03				6.62
mm									136.525	7.925	11.913	0.76				168.15
in.	4							R36	5.875	0.250	0.344	0.03	6.75
mm									149.225	6.350	8.738	0.76	171.45
in.		4	4	4	4			R37	5.875	0.312	0.469	0.03		6.88	7.12
mm									149.225	7.925	11.913	0.76		174.75	180.85
in.							4	R38	6.188	0.438	0.656	0.06					8.00
mm									157.175	11.125	16.662	1.52					203.20
in.						4		R39	6.375	0.312	0.469	0.03				7.62
mm									161.925	7.925	11.913	0.76				193.55
in.	5							R40	6.750	0.250	0.344	0.03	7.62
mm									171.450	6.350	8.738	0.76	193.55
in.		5	5	5	5			R41	7.125	0.312	0.469	0.03		8.25	8.50
mm									180.975	7.925	11.913	0.76		209.55	215.90
in.							5	R42	7.500	0.500	0.781	0.06					9.50
mm									190.500	12.700	19.837	1.52					241.30
in.	6							R43	7.625	0.250	0.344	0.03	8.62
mm									193.675	6.350	8.738	0.76	218.95
in.						5		R44	7.625	0.312	0.469	0.03				9.00
mm									193.675	7.925	11.913	0.76				228.60
in.		6	6	6	6			R45	8 312	0.312	0 469	0.03		9.50	9.50
mm									211.125	7.925	11 913	0 76		241.30	241.30
in.						6		R46	8.312	0.375	0.531	0.06				9.75
mm									211.125	9.525	13.487	1.52				247.65
in.							6	R47	9.000	0.500	0.781	0.06					11.00
mm									228.600	12.700	19.84	1.50					279.40
in.								R48	9.750	0.250	0.344	0.03	10.75
mm									247.650	6.350	8.74	0.80	273.10
in.		8	8	8	8			R49	10.625	0.312	0.469	0.03		11.88	12.12
mm									269.880	7.920	11.91	0.80		301.8	307.8
in.						8		R50	10.625	0.438	0.656	0.06				12.50
mm									269.880	11.130	16.66	1.50				317.5
							8	R51	11 000	0 562	0.906	0.06					13.38
									279.400	14.270	23.01	1.50					339.9
in.	10							R52	12.000	0.250	0.344	0.03	13.00
mm									304.800	6.350	8.74	0.80	330.2
		10	10	10	10			R53	12.750	0.312	0.469	0.03		14.00	14.25
									323.850	7.920	11.91	0.80		355.6	362.0
in.						10		R54	12.750	0.438	0.656	0.06				14.62
mm									323.850	11.130	16.66	1.50				371.3
							10	R55	13.500	0.688	1.188	0.09					16.75
									342.900	17.480	30.18	2.30					425.5
in.	12							R56	15.000	0.250	0.344	0.03	16.00
mm									381.000	6.350	8.74	0.80	406.4

Nominal Pipe Size								Groove Number	Groove Dimensions				Diameter of Raised Portion K
Class 150		Class 300	Class 400	Class 600	Class 900	Class 1500	Class 2500		Pitch Diameter	Depth(1)	Width	Radius At bottom	Class 150	Class 300 400 600	Class 900	Class 1500	Class 2500
Class 150		Class 300	Class 400	Class 600	Class 900	Class 1500	Class 2500		P	E	F	R	Class 150	Class 300 400 600	Class 900	Class 1500	Class 2500
in.		12	12	12	12			R57	15.000	0.312	0.469	0.03		16.25	16.50
mm									381.000	7.920	11.910	0.80		412.8	419.10
in.						12		R58	15.000	0.562	0.906	0.06				17.25
mm									381.000	14.270	23.010	1.50				438.20
in.	14							R59	15.625	0.250	0.344	0.03	16.75
mm									396.880	6.350	8.740	0.80	425.50
in.							12	R60	16.000	0.688	1.312	0.09					19.5
mm									406.400	17.480	33.320	2.30					495.3
in.		14	14	14				R61	16.500	0.312	0.469	0.03		18
mm									419.100	7.920	11.910	0.80		457.2
in.					14			R62	16.500	0.438	0.656	0.06			18.38
mm									419.100	11.125	16.662	1.52			466.85
in.						14		R63	16.500	0.625	1.062	0.09				19.25
mm									419.100	15.875	26.975	2.29				488.95
in.	16							R64	17.875	0.250	0.344	0.03	19.00
mm									454.025	6.350	8.738	0.76	482.60
in.		16	16	16				R65	18.500	0.312	0.469	0.03		20
mm									469.900	7.920	11.910	0.80		508
in.					16			R66	18.500	0.438	0.656	0.06			20.62
mm									469.900	11.130	16.660	1.50			523.70
in.						16		R67	18.500	0.688	1.188	0.09				21.50
mm									469.900	17.480	30.180	2.30				546.10
in.	18							R68	20.375	0.250	0.344	0.03	21.50
mm									517.530	6.350	8.740	0.80	546.10
in.		18	18	18				R69	21.000	0.312	0.469	0.03		22.62
mm									533.400	7.920	11.910	0.80		574.5
in.					18			R70	21.000	0.500	0.781	0.06			23.38
mm									533.400	12.700	19.840	1.50			593.90
in.						18		R71	21.000	0.688	1.188	0.09				24.12
mm									533.400	17.480	30.180	2.30				612.60
in.	20							R72	22.000	0.250	0.344	0.03	23.50
mm									558.800	6.350	8.740	0.80	596.90
in.		20	20	20				R73	23.000	0.375	0.531	0.06		25
mm									584.200	9.530	13.490	1.50		635
in.					20			R74	23.000	0.500	0.781	0.06			25.50
mm									584.200	12.700	19.840	1.50			647.70
in.						20		R75	23.000	0.688	1.312	0.09				26.50
mm									584.200	17.480	33.320	2.30				673.10
in.	24							R76	26.500	0.250	0.344	0.03	28.00
mm									673.100	6.350	8.740	0.80	711.20
in.		24	24	24				R77	27.250	0.438	0.656	0.06		29.5
mm									692.150	11.130	16.660	1.50		749.3
in.					24			R78	27.250	0.625	1.062	0.09			30.38
mm									692.150	15.880	26.970	2.30			771.70
in.						24		R79	27.250	0.812	1.438	0.09				31.25
mm									692.150	20.620	36.530	2.30				793.80