Weld Neck flange dimensions
Weld Neck flange dimensions, weights and data sheets — ASME B16.5, ASME B16.47 Series A, EN 1092-1 / IS 6392. Butt-welded, tapered hub — high pressure & cyclic service. Select a size for the full drawing and dimension table.
Weld Neck — ASME B16.5
Class 150
½"¾"1"1 ¼"1 ½"2"2 ½"3"3 ½"4"5"6"8"10"12"14"16"18"20"24"
Class 300
½"¾"1"1 ¼"1 ½"2"2 ½"3"3 ½"4"5"6"8"10"12"14"16"18"20"24"
Class 600
½"¾"1"1 ¼"1 ½"2"2 ½"3"3 ½"4"5"6"8"10"12"14"16"18"20"24"
Class 900
½"¾"1"1 ¼"1 ½"2"2 ½"3"4"5"6"8"10"12"14"16"18"20"24"
Class 1500
½"¾"1"1 ¼"1 ½"2"2 ½"3"4"5"6"8"10"12"14"16"18"20"24"
Class 2500
Weld Neck — ASME B16.47 Series A
Class 150
26"28"30"32"34"36"38"40"42"44"46"48"50"52"54"56"58"60"
Class 300
26"28"30"32"34"36"38"40"42"44"46"48"50"52"54"56"58"60"
Class 400
26"28"30"32"34"36"38"40"42"44"46"48"50"52"54"56"58"60"
Class 600
26"28"30"32"34"36"38"40"42"44"46"48"
Class 900
Weld Neck — EN 1092-1 / IS 6392
PN 10
DN 15DN 20DN 25DN 32DN 40DN 50DN 65DN 80DN 100DN 125DN 150DN 200DN 250DN 300DN 350DN 400DN 450DN 500DN 600
PN 16
DN 15DN 20DN 25DN 32DN 40DN 50DN 65DN 80DN 100DN 125DN 150DN 200DN 250DN 300DN 350DN 400DN 450DN 500DN 600
PN 40
DN 15DN 20DN 25DN 32DN 40DN 50DN 65DN 80DN 100DN 125DN 150DN 200DN 250DN 300