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Class 1500 Standard Connections Flanges

Long Weld Neck "LWN"

Heavy Barrel "HB"

Equal Barrel "E"

Size  Flange  Barrel OD  Bolting  Nut  Stud Bolt  Weights     Length
NomBore LWN & EBore HBODThkRF of ODLWNHBE# ofHolesHole SizeBolt CircleStop DiaRelief DiaRelief LengthSizeRF LengthRTJ LengthLWN HB EBase
 BTDDD  CNSNRNL   BasePer 1″BasePer 1″BasePer 1″
 1/20.50.554.750.881.381.5624.7540.883.2521.5613/4 4 1/44 1/480.5100.83759
 3/40.750.745.1211.691.812.255.1240.883.52.251.8113/4 4 1/24 1/2100.6131425.79
110.965.881.1222.122.565.884142.562.121.127/8 5   5   130.8171.3547.59
1 1/41.251.286.251.122.52.52.946.25414.382.942.51.127/8 5   5   171201.6618.39
1 1/21.51.571.252.882.753.25741.124.883.252.751.2515 1/25 1/2211.2261.977109
221.948.51.53.624.125.068.5816.55.064.121.12  7/8 5 3/45 3/4422.9564.9115159
2 1/22.52.329.621.624.124.885.889.6281.127.55.884.881.2516 1/46 1/4563.9756.5144199
332.910.51.8855.256.1910.581.2586.195.251.381 1/8 7   7   674.1846.7161239
443.8312.252.126.196.387.512.2581.389.57.56.381.51 1/4 7 3/47 3/41105.51479.33023012
554.8114.752.887.317.759.1214.7581.6211.59.127.751.751 1/2 9 3/49 3/41817.8233134144312
665.7615.53.258.5910.3115.5121.512.510.3191.621 3/8 10 1/410 1/221510272164454612
887.62193.6210.6211.512.9419121.7515.512.9411.51.881 5/8 11 1/212 3/433715417246296712
10109.56234.2512.7514.516.06231221916.0614.52.121 7/8 13 1/413 1/254625651378889712
121211.3826.54.881517.7519.3826.5162.1222.519.3817.752.25214 3/415 1/494638114855168312716
14141429.55.2516.2519.521.529.5162.382521.519.52.52 1/4 16   16 3/4111641130859192915016
16161632.55.7518.521.7523.8832.5162.6227.7523.8821.752.752 1/2 17 1/218 1/2137148158870223817816
181818366.382123.526.2536162.8830.526.2523.532 3/4 19 1/220 3/4167451195981262921616
20202038.7572325.2528.1238.75163.1232.7528.1225.253.25321 1/422 1/4194353224187286824516
24242446827.253033.6246163.623933.62303.753 1/2 24 1/425 1/22936723334123381934316

Dimensions are in inches. Weights are in pounds.
Class 1500 Standard Connection Flange PDF (for printing).