Gaskets,Packings, & Seals Inc.  P.O. Box 509  Parkersburg, WV 26102  Tel: 304-422-3880 Fax: 304-422-9476

Large Diameter Spiral Wound Dimensions
ASME B16.20 for use with B16.47 Series B
API 605
Class 400
	INNER	GASKET			OUTER
NPS	RING	INSIDE	OUTSIDE		RING
	I.D.	DIAMETER	DIAMETER		O.D.
26	25.75	26.25	27.50		29.38
28	27.63	28.13	29.50		31.50
30	29.63	30.13	31.75		33.75
32	31.50	32.00	33.88		35.88
34	33.50	34.13	35.88		37.88
36	35.38	36.13	38.00		40.25
38	37.50	38.25	40.25		42.25
40	39.38	40.38	42.38		44.38
42	41.38	42.38	44.38		46.38
44	43.50	44.50	46.50		48.50
46	46.00	47.00	49.00		50.75
48	47.50	49.00	51.00		53.00
50	49.50	51.00	53.00		55.25
52	51.50	53.00	55.00		57.25
54	53.25	55.25	57.25		59.75
56	55.25	57.25	59.25		61.75
58	57.25	59.25	61.25		63.75
60	59.75	61.75	63.75		66.25

Email: help@sealsolutions.com