ASME/ANSI B16.5 Class 300 LJ

The lap joint flange is practically identical to a slip-on flange except it has a radius at the intersection of the bore and flange face. This radius is necessary to have the flange accommodate a lap joint stub end.

 Normally, a lap joint flange and a lap joint stub end are mated together is an assembly system.

Nominal Pipe Size Outside Diameter of FlangeThickness of Lap Joint Min.Diameter of HubLength Through HubBoreCorner Radius of Bore of Lapped FlangeDiameter of Bolt CircleDiameter of Bolt HolesNumber of BoltsApproxi-mate Weight kgs
NPSOtfXYBrWIn 
1/29514.3382222.9366.715.940.70
3/411515.9482528.2382.619.141.16
112517.5542734.9388.919.141.50
1 1/413519.1642743.7598.419.141.86
1 1/215520.7703050.06114.322.242.63
216522.3843362.58127.019.183.02
2 1/219025.41003875.48149.222.284.48
321028.61174391.410168.322.286.08
3 1/223030.213344104.110184.222.287.68
425531.814648116.811200.022.2810.07
528035.017851144.411235.022.2812.64
632036.620652171.413269.922.21216.39
838041.326062222.213330.225.41224.57
1044547.732195277.413387.428.61639.40
1252050.8375102328.213450.831.81656.33
1458554.0425111360.213514.431.82081.97
1665057.2483121411.213571.534.920106.10
1871060.4533130462.313628.634.924127.52
2077563.5587140514.413685.834.924157.92
2491569.9702152616.013812.841.324237.21

Get in Touch

Welcome to Sunny Steel Enterprise Ltd.

Sunny Steel provide a wide range of steel products as Steel pipes, Seamless tube and seamless pipes, Alloy pipes, Pipe fittings, Composite steel pipe used in the industry, construction etc.
You can get in touch by telephone, post, online or E-mail.
Please check the help section first to see if your question may be answered there.

Blog Archive