Gasket Area & Seating Load Calculator
Calculate the contact area of a ring gasket and the bolt load needed to seat it and hold internal pressure.
- Gasket contact area
- 10,225.1 mm²
- Gasket width
- 23.50 mm
- Mean gasket diameter
- 138.50 mm
- Seating load
- 306.8 kN
- Hydrostatic end force
- 20.8 kN
- Total bolt load
- 327.5 kN
- Load per bolt (8)
- 40.9 kN
Formula used
A = π/4 × (OD² − ID²) | F = A × y + π/4 × ID² × P
A is the gasket contact area in mm², y the required seating stress in MPa and P the internal pressure in MPa (entered in bar and converted). The result feeds directly into the bolt torque calculator as the target load per bolt.
Seating stress depends on the gasket material and construction — use the value given by your gasket supplier. This simplified check does not replace a full flange design calculation.
Results are theoretical calculations based on the values you enter. Actual weights and quantities vary with manufacturing tolerances. Confirm requirements with our team before ordering.
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