LeKe Piping / Technical calculator
Slip-on flange
weight calculator
Choose NPS, pressure class and material to view the dimensions, rotate the 3D model and estimate the weight of one slip-on flange.
Configure your flange
ASME B16.5 reference dimensions · raised face model
Raised face height for Class 150: 1.6 mm.
Interactive 3D product model
Drag in any direction · scroll to zoom · parameters update the model
The 3D model scales the B16.5 flange O.D., thickness, hub base, hub length, bore and bolt pattern. Its hub end O.D. is illustrative because the table does not specify a unique finished contour.
Auto-filled dimensions (mm unless noted)
How the estimate is calculated
The plate ring and raised face volumes are calculated after subtracting the through bore and bolt holes. ASME B16.5 specifies the hub base diameter and minimum length but not one unique finished hub contour. The estimate uses the midpoint of tapered and cylindrical hub volume bounds.
The model uses a short, nearly cylindrical hub based on the supplied product photo. Its illustrative hub end O.D. is not an ASME B16.5 table dimension. Fillets, weld preparation, machining tolerances and coatings are excluded.
Check before ordering
Reference dimensions follow the supplied ASME B16.5-2003 data for Classes 150, 300 and 600. The displayed bore is the slip-on bore, which is larger than the pipe outside diameter. Confirm facing, drawing, material and actual piece weight for quotation.