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Class 125LW Flanges

Class 125LW (175-150 psi*)
Same as AWWA Class D Hub

(Click any image above to enlarge it and lock it in place, then scroll to the bottom table for dimensions)
Drilling
Nom SizeODThicknessDia at BaseBoreLTHBolt CircleBolt LengthHole Dia# of HolesWeight
ATEBLC
490.55.3124.570.8757.52.750.7587
5100.5626.4385.661.258.53.250.87589
6110.5627.5626.721.259.53.250.875811
813.50.5629.6888.721.2511.753.250.875815
10160.6881210.881.2514.253.7511222
12190.68814.37512.881.25173.7511233
14210.7515.7514.191.2518.7541.1251243
1623.50.751816.191.2521.2541.1251652
18250.7519.87518.191.2522.754.251.251652
2027.50.752220.191.25254.251.252061
2229.512422.191.7527.2551.3752092
2432126.12524.191.7529.551.37520105
2634.25128.526.191.7531.7551.37524119
2836.5130.528.191.753451.37528130
3038.75132.530.191.753651.37528144
3241.751.12534.7532.191.7538.561.62528182
3443.751.12536.7534.191.7540.561.62532191
36461.12538.7536.191.7542.7561.62532207
3848.751.12540.7538.191.7545.2561.62532237
4050.751.1254340.191.7547.2561.62536249
42531.254542.191.7549.56.251.62536287
4455.251.254744.192.2551.756.251.62540334
4657.251.254946.192.2553.756.251.62540348
4859.51.3755148.192.5566.51.62544407
5061.751.3755350.192.558.2571.87544421
52641.3755552.192.560.571.87544448
5466.251.3755754.192.562.7571.87544475
60731.56360.192.7569.257.251.87552605
66801.56966.192.75767.251.87552718
7286.51.57572.192.7582.57.251.87560803
78931.7581.2578.193898.252.125641010
8499.751.7587.584.19395.58.252.125641160
90106.5293.7590.193.251029.52.438681430
96113.25210096.193.25108.59.52.438681618

Dimensions are in pounds.

Notes: Hub flanges are to be used on pipe that has an OD equal to the nominal pipe size in the first column. *Pressure Ratings are from AWWA Table 3 Class D. Pressure rating at atmospheric temperature: sizes 4-12 in. inclusive, 175 psi; sizes larger than 12 in., 150 psi. These flanges have the same diameter and drilling as ANSI/ASME B16.1 class 125 cast-iron flanges. In sizes 24in. and smaller they also match up to ANSI/ASME B16.5 150-psi standard for steel flanges.

Class 125LW Flange PDF (for printing).