Type			Flange Side		Tube Side		Type		External Dimensions
			ØA	ØＢ	ØOD	ØID	a	b	E
NW25	×	25A	40	26.2	34.0	28.4		●	20
NW25	×	25A	40	26.2	34.0	28.4		●	30
NW40	×	40A	55	41.2	48.6	43.0		●	20
NW40	×	40A	55	41.2	48.6	43.0		●	30
NW40	×	20A	55	41.2	27.2	23.0	●		20
NW50	×	32A	75	52.2	42.7	37.1	●		20