Class 75 Industry Standard - Weld Neck and Matching Blind Add Flanges

* Bore (B): To be specified by purchaser
* Hub Diameter at Bevel (A): To be established by design requirements

Nominal Size	Outside Diameter (OD)	Thickness - Weld Neck (T)	Thickness - Blind (T)	Raised Face Dia. (R)	Hub Diameter (X)	Lenght Through Hub (Y)	Drilling - Bolt Circle (BC)	Drilling - Dia. of Holes	Drilling - No. of Holes	Approx. Weight - Weld Neck (lbs)	Approx. Weight - Blind (lbs)	* Bore (B)	* Hub Diameter at Bevel (A)
26	31.50	1.15	1.25	28.63	27.13	3.00	29.63	1.00	32	98	265	*	*
28	33.50	1.25	1.25	30.63	29.13	3.00	31.63	1.00	36	105	300	*	*
30	35.50	1.25	1.38	32.63	31.13	3.00	33.63	1.00	36	110	370	*	*
32	38.25	1.25	1.50	35.00	33.38	3.25	36.13	1.13	36	140	470	*	*
34	40.25	1.25	1.50	37.00	35.38	3.25	38.13	1.13	40	150	520	*	*
36	42.25	1.25	1.63	39.00	37.38	3.25	40.13	1.13	40	160	620	*	*
42	49.00	1.25	1.88	45.50	43.75	3.50	46.75	1.25	48	210	970	*	*
48	55.00	1.25	2.13	51.50	49.75	3.75	52.75	1.25	52	240	1375	*	*
54	61.25	1.38	2.38	57.75	56.00	4.00	59.00	1.25	64	310	1925	*	*
60	67.25	1.63	2.63	63.75	62.00	4.38	65.00	1.25	72	400	2575	*	*
66	74.00	1.88	2.88	70.13	68.00	4.88	71.50	1.38	72	560	3400	*	*
72	80.00	2.25	3.13	76.13	74.00	5.25	77.50	1.38	80	700	4350	*	*

Dimensions are in inches