5511 Tomken Road. Unit #1

Mississauga, Ontario L4W 4B8

905-602-2033

Phone

Mon - Fri: 8:30am - 5pm

Hours

5511 Tomken Road. Unit #1

Mississauga, Ontario L4W 4B8

905-602-2033

Phone

Mon - Fri: 8:30 - 5

Hours

Style WR & WRI to ASME B16-47 Series A

Dimensions for Style WR / WRI per ASME B16.20 To suit ASME B16.47 Series A or MSS-SP-44 Flanges

Class 150
Nom. Pipe Size	Inner Ring I.D.	Winding		Centering Ring Outside Dia.
Nom. Pipe Size	Inner Ring I.D.	I.D.	O.D.	Centering Ring Outside Dia.
22		22.750	24.000	26.000
26	25.750	26.500	27.750	30.500
28	27.750	28.500	29.750	32.750
30	29.750	30.500	31.750	34.750
32	31.750	32.500	33.875	37.000
34	33.750	34.500	35.875	39.000
36	35.750	36.500	38.125	41.250
38	37.750	38.500	40.125	43.750
40	39.750	40.500	42.125	45.750
42	41.750	42.500	44.250	48.000
44	43.750	44.500	46.375	50.250
46	45.750	46.500	48.375	52.250
48	47.750	48.500	50.375	54.500
50	49.750	50.500	52.500	56.500
52	51.750	52.500	54.500	58.750
54	53.500	54.500	56.500	61.000
56	55.500	56.500	58.500	63.250
58	57.500	58.500	60.500	65.500
60	59.500	60.500	62.500	67.500

Class 300
Nom. Pipe Size	Inner Ring I.D.	Winding		Centering Ring Outside Dia.
Nom. Pipe Size	Inner Ring I.D.	I.D.	O.D.	Centering Ring Outside Dia.
22		22.750	24.750	27.750
26	25.750	27.000	29.000	32.875
28	27.750	29.000	31.000	35.375
30	29.750	31.250	33.250	37.500
32	31.750	33.500	35.500	39.625
34	33.750	35.500	37.500	41.625
36	35.750	37.625	39.625	44.000
38	37.500	38.500	40.000	41.500
40	39.500	40.250	42.125	43.875
42	41.500	42.250	44.125	45.875
44	43.500	44.500	46.500	48.000
46	45.625	46.375	48.375	50.125
48	47.625	48.625	50.625	52.125
50	49.000	51.000	53.000	54.250
52	52.000	53.000	55.000	56.250
54	53.250	55.250	57.250	58.750
56	55.250	57.250	59.250	60.750
58	57.000	59.500	61.500	62.750
60	60.000	61.500	63.500	64.750

The above style WR gasket dimensions are also suitable for NPS 26 to 48 class 150 and NPS 26 to 36 class 300 BS-3293 Flanges.

Class 400
Nom. Pipe Size	Inner Ring I.D.	Winding		Centering Ring Outside Dia.
Nom. Pipe Size	Inner Ring I.D.	I.D.	O.D.	Centering Ring Outside Dia.
22		22.750	24.750	27.625
26	26.000	27.000	29.000	32.750
28	28.000	29.000	31.000	35.125
30	29.750	31.250	33.250	37.250
32	32.000	33.500	35.500	39.500
34	34.000	35.500	37.500	41.500
36	36.125	37.625	39.625	44.000
38	37.500	38.250	40.250	42.250
40	39.375	40.375	42.375	44.375
42	41.375	42.375	44.375	46.375
44	43.500	44.500	46.500	48.500
46	46.000	47.000	49.000	50.750
48	47.500	49.000	51.000	53.000
50	49.500	51.000	53.000	55.250
52	51.500	53.000	55.000	57.250
54	53.250	55.250	57.250	59.750
56	55.250	57.250	59.250	61.750
58	57.250	59.250	61.250	63.750
60	59.750	61.750	63.750	66.250

Class 600
Nom. Pipe Size	Inner Ring I.D.	Winding		Centering Ring Outside Dia.
Nom. Pipe Size	Inner Ring I.D.	I.D.	O.D.	Centering Ring Outside Dia.
22		22.750	24.750	28.875
26	25.500	27.000	29.000	34.125
28	27.500	29.000	31.000	36.000
30	29.750	31.250	33.250	38.250
32	32.000	33.500	35.500	40.250
34	34.000	35.500	37.500	42.250
36	36.125	37.625	39.625	44.500
38	37.500	39.000	41.000	43.500
40	39.750	41.250	43.250	45.500
42	42.000	43.500	45.500	48.000
44	43.750	45.750	47.750	50.000
46	45.750	47.750	49.750	52.250
48	48.000	50.000	52.000	54.750
50	50.000	52.000	54.000	57.000
52	52.000	54.000	56.000	59.000
54	54.250	56.250	58.250	61.250
56	56.250	58.250	60.250	63.500
58	58.000	60.500	62.500	65.500
60	60.250	62.750	64.750	68.250

The above style WR gasket dimensions are also suitable for NPS 26 to 36 class 400 and 600 BS-3293 Flanges.

Class 900
Nom. Pipe Size	Inner Ring I.D.	Winding		Centering Ring Outside Dia.
Nom. Pipe Size	Inner Ring I.D.	I.D.	O.D.	Centering Ring Outside Dia.
22
26	26.000	27.000	29.000	34.750
28	28.000	29.000	31.000	37.250
30	30.250	31.250	33.250	39.750
32	32.000	33.500	35.500	42.250
34	34.000	35.500	37.500	44.750
36	36.250	37.750	39.750	47.250
38	39.750	40.750	42.750	47.250
40	41.750	43.250	45.250	49.250
42	43.750	45.250	47.250	51.250
44	45.500	47.500	49.500	53.875
46	48.000	50.000	52.000	56.500
48	50.000	52.000	54.000	58.500

Note: There are no class 900 flanges NPS 50 and larger. INNER RINGS are mandatory for class 900 flanges, NPS 26 to 48.