Compute the medium-pressure sealing force Q on the annular seal area, the primary load for downstream torque calculations.
Open Calculator →
Force computed over the ring-shaped seal area between D2 and D1.
Q scales linearly with design pressure P acting on the seal.
Derived from the annular area integral over the ball-seat contact.
Uses the sum of seal diameters for the effective mean area.
Q is the primary input for total operating torque Mm.
Module 4 of 8 in the Floating Ball Valve design verification suite.
Input seal outer D2 and inner D1 diameters.
Enter design pressure P in MPa.
Calculate sealing force from the annular area formula.
Q feeds into friction torque and total torque modules.
Enter your design parameters and get instant verification results.
Open Calculator →