Hub Type
Defines the construction of the flange hub. Select Tapered or No Hub for all flange types except Blind G.3-9.
The software sets the hub type to No Connected Shell when you select Blind G.3-9 for Flange Type.
Hub Length (RlH/RlHm)
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Adapted from Figure 4, EN 1591-1:2001+A1, Flanges and their joints - Design rules for gasketed circular flange connections - Part 1: Calculation method |
Defines IH, the length of the hub.
If you use Flange Dimension Lookup 
, the software defines a value for this field.
Hub Large End Thk (e2/e2m)
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Adapted from Figure 4, EN 1591-1:2001+A1, Flanges and their joints - Design rules for gasketed circular flange connections - Part 1: Calculation method |
Defines e2, the minimum wall thickness at the thick end of the hub.
If you use Flange Dimension Lookup , the software defines a value for this field.
Hub Small End Thk (e1/e1m)
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Adapted from Figure 4, EN 1591-1:2001+A1, Flanges and their joints - Design rules for gasketed circular flange connections - Part 1: Calculation method |
Defines e1, the minimum wall thickness at the thin end of the hub.
If you use Flange Dimension Lookup , the software defines a value for this field.
Hub Thick End Avg Diameter (d2/d2m)
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Adapted from Figure 4, EN 1591-1:2001+A1, Flanges and their joints - Design rules for gasketed circular flange connections - Part 1: Calculation method |
Defines d2, the average diameter of the thick end of the hub.
Hub Thin End Avg Diameter (d1/d1m)
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Adapted from Figure 4, EN 1591-1:2001+A1, Flanges and their joints - Design rules for gasketed circular flange connections - Part 1: Calculation method |
Defines d1, the average diameter of the thin end of the hub.