LeKe Piping / Technical calculator
Socket welding flange
weight calculator
Select NPS, pressure class and material. The ASME B16.5 dimensions, stepped socket and estimated single-piece weight update automatically.
Configure your flange
ASME B16.5-2003 reference dimensions · raised face model
Raised face height for Class 150: 1.6 mm.
Interactive 3D socket flange
Drag in any direction · scroll to zoom · parameters update the model
The socket counterbore and smaller through bore form the internal step. The hub finish is representative of the supplied product photo.
Auto-filled dimensions (mm unless noted)
How the weight is estimated
The plate ring, short hub and raised face are combined. Bolt holes, the through bore and the deeper socket counterbore are subtracted. The standard dimensions define hub base and length, but do not give one unique finished outer hub contour; the displayed range brackets tapered and cylindrical hub volumes.
Fillets, weld preparation, machining allowances and coatings are excluded. Confirm actual weight with the approved drawing.
Standard and ordering notes
Dimensions use the supplied ASME B16.5-2003 Tables 7/8, 10/11 and 15/16. SW availability shown here is NPS 1/2–3 for Classes 150/300 and NPS 1/2–2-1/2 for Class 600, following those tables’ flange illustrations. The socket opening Q exceeds the pipe O.D.; the lower through bore T is smaller.