Flange Pair

Property

Description

Name

Element identifier. When selected, displays in 3D model view.

Length, H

Total assembly length of flange pair

Weight

Flange pair assembly weight including bolts and nuts. Excludes insulation and fluid content weight. Fluid and insulation weights automatically calculated from adjacent piping data.

Flange Leakage Check

Enable flange leakage analysis when selected

Leakage Check Method

Select flange leakage analysis methodology

Insulation joint (Insulation Kit) stress evaluation follows manufacturer specifications using 72% or 75% of yield stress allowable:

72% yield stress equation:

75% yield stress equation:

Flange Code

Select design standard: GOST, ASME B16.5, or EN 1092-1

Gasket Effective Diameter, G

Diameter at gasket load reaction location per ASME B16.20 & ASME Section VIII Division 1, Appendix 2, Table 2-5.2

For ASME B16.5 and EN 1092-1 flanges, calculate G using:

OD – Gasket outer diameter

ID – Gasket inner diameter

b0 - Basic gasket seating width (ASME VIII Div. 1, Appendix 2, Table 2-5.2)

b – Basic gasket width

Cb = 0.5 (U.S. customary units), 2.5 (SI units)

Nominal Pressure PN / Class

PN rating for GOST and EN 1092-1 flanges, Class rating for ASME B16.5 flanges

Material Group

Flange material classification per selected standard

ASME B16.5-2020

EN 1092-1:2013

Factor Fm

Fm factor for Code Case 2901 (PVP) method

Bolt Area, Ab

Bolt Circle Diameter, C

Bolt Material

Select material from database