TABLE DIMENSIONS OF SOFT GASKET ASME B16.21 ANSI 300

SOFT / CUTTING GASKET DIMENSIONS

Dimensions to suit ANSI Standard Flanges ASME B16.21
ASME B16.21 Class 300
Nominal Bore	IBC Gasket	Full Face gasket
Nominal Bore	OD x ID (mm)	OD x ID (mm)	Number of Bolt Holes	Hole Diameter (mm)	Bolt P.C.D. (mm)
1/2	54 x 21	95 x 21	4	16	67
3/4	67 x 27	117 x 27	4	19	83
1	73 x 33	124 x 33	4	19	89
1 1/4	83 x 42	133 x 42	4	19	98
1 1/2	95 x 48	156 x 48	4	22	114
2	111 x 60	165 x 60	8	19	127
2 1/2	130 x 73	191 x 73	8	22	149
3	149 x 89	210 x 89	8	22	168
3 1/2	165 x 102	229 x 102	8	22	184
4	181 x 114	254 x 114	8	22	200
5	216 x 141	279 x 141	8	22	235
6	251 x 168	318 x 168	12	22	270
8	308 x 219	381 x 219	12	29	330
10	362 x 273	445 x 273	16	29	387
12	422 x 324	521 x 324	16	25	451
14	486 x 356	584 x 356	20	32	514
16	540 x 406	648 x 406	20	35	572
18	597 x 457	711 x 457	24	35	629
20	654 x 508	775 x 508	24	35	686
24	775 x 610	914 x 610	24	41	813