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Gasket and Valve Sizing

RF Gasket Sizing

NOMINAL PIPE SIZE		INSIDE DIAMETER	OUTSIDE DIAMETER
DN	INCH	INSIDE DIAMETER	#150	#300	#400	#600	#900
15	½	21	48	54	54	54	64
20	¾	27	57	67	67	67	70
25	1	33	67	73	73	73	79
32	1 ¼	42	76	83	83	83	89
40	1 ½	48	86	95	95	95	98
50	2	60	105	111	111	111	143
65	2 ½	73	124	130	130	130	165
80	3	89	137	149	149	149	168
90	3 ½	102	162	165	162	162	-
100	4	114	175	181	178	194	206
125	5	141	197	216	213	241	248
150	6	168	222	251	248	267	289
200	8	219	279	308	305	321	359
250	10	273	340	362	359	400	435
300	12	324	410	422	419	457	498
350	14	356	451	486	483	492	521
400	16	406	514	540	537	565	575
450	18	457	549	597	594	613	638
500	20	508	606	654	648	683	699
600	24	610	718	775	768	791	838

FF Gasket Sizing

NOMINAL PIPE SIZE		#150					#300
DN	INCH	ID	OD	No of Holes	Hole Diameter	BCD	ID	OD	Holes	Hole Diameter	BCD
15	½	22	89	4	16	60.5	22	95	4	16	66.5
20	¾	28	99	4	16	69.8	28	117	4	19	82.6
25	1	34	108	4	16	79.2	34	124	4	19	88.9
32	1 ¼	44	117	4	16	88.9	44	133	4	19	98.6
40	1 ½	49	127	4	16	98.6	49	156	4	22	114.3
50	2	61	152	4	19	120.6	61	165	8	19	127.0
65	2 ½	77	178	4	19	139.7	77	190	8	22	149.4
80	3	90	190	4	19	152.4	90	210	8	22	168.1
90	3 ½	103	216	8	19	177.8	102	229	8	22	184.2
100	4	116	229	8	19	190.5	116	254	8	22	200.2
125	5	143	254	8	22	215.9	143	279	8	22	235.0
150	6	169	279	8	22	241.3	169	318	12	22	269.7
200	8	220	343	8	22	298.4	220	381	12	26	330.2
250	10	275	406	12	26	362.0	275	444	16	29	387.4
300	12	326	483	12	26	431.8	326	520	16	32	450.8
350	14	358	535	12	29	476.2	358	585	20	32	514.4
400	16	408	595	16	29	539.8	408	650	20	35	571.5
450	18	459	635	16	32	577.8	459	710	24	35	628.6
500	20	510	700	20	32	635.0	510	775	24	35	685.8
600	24	612	815	20	35	749.3	612	915	24	42	812.8

Valve Sizing

Material	Body Construction	Piping Class (Rating)	Size
Material	Body Construction	Piping Class (Rating)	NPS	DN
Carbon Steel	ASJM A105 / ASJM A216	150#	2 3 4	50 80 100
Low Carbon Steel	ASJM A350 / ASJM A352	300#	6 8	150 200
Bronze	B148	600#	10 12	250 300
Stainless Steel	ASJM A172 / ASJM A350	900# 1500#	14 16 18	350 400 450
Duplex Stainless Steel	ASJM A172 / ASJM A890	2500#	20 22 24	500 550 600