Key shear and crushing stress verification for the stem-to-ball connection in fixed-shaft ball valves per mechanical design standards.
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Both shear (tau) and crushing (sigma) stress verified for key integrity.
Input key width, height and engagement length per standard key dimensions.
Directly uses total stem torque M for force calculation on key.
Instant judgment for both shear and crushing: must both pass.
Key material allowable stresses for shear and crushing from design standards.
One of 12 modules in the complete Ball Valve Design Calculation suite.
Input total torque, stem diameter, key dimensions, and material allowables.
tau_key = 2M / (d * b * l) on the key cross-section.
sigma_key = 4M / (d * h * l) on the key side face.
Check tau <= [tau] and sigma <= [sigma]; both must pass for key reliability.
Enter your design parameters and get instant verification results.
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