V4 Series, (2,500-23,000 ACFM) ANSI Flanges English Dimensions V4L50 (2,500-5,000 ACFM), Series ANSI Flanges English Dimensions V4M55 (3,500-6,000 ACFM), Series ANSI Flanges English Dimensions V4P75 (4,500-8,000 ACFM), Series ANSI Flanges English Dimensions V4R95 (5200 – 9500 ACFM) Series ANSI Flanges English Dimensions V4S110 (7,000-11,000 ACFM), Series ANSI Flanges English Dimensions V4T130 (8,000-12,500 ACFM), Series ANSI Flanges English Dimensions V4U150 (9,800-15,000 ACFM), Series ANSI Flanges English Dimensions V4V190 (11,050 – 17,075 ACFM) Series ANSI Flanges English Dimensions V4X230 (15,000 – 23,050 ACFM) Series ANSI Flanges English Dimensions