What Is Over-Tightening?
Over-tightening is when a gasket is compressed beyond its recommended torque limit during installation. It may happen due to a lack of proper torque-control tools, misunderstanding of the specifications, or the common belief that tighter means better.
Potential Problems Caused by Over-Tightening
When a seal fails, contaminants can enter the system; this is especially problematic in semiconductor manufacturing and other high-purity applications.
Bead Damage
Excess pressure can deform the sealing bead, leading to uneven connections and eventual leaks.
Gasket Failure
The material may crack, split, or embed into mating surfaces, all of which compromise performance.
Rotary Action Transfer
Over-tightening can cause the gland and nut to rotate together, creating torque transmission issues that affect alignment.
Learn More: What Is Rotary Action Transfer?
Preventing Over-Tightening With VCR-Style Fittings
Hy-Tech Anti-Torque Rings
Components like Hy-Tech’s Anti-Torque Rings help prevent unwanted torque transmission during assembly.
Hy-Tech Grooved Gaskets
Our grooved gaskets have built-in stop features that prevent you from overtightening, safeguarding your system from leaks and potential contamination.
Be sure to periodically check gaskets, seals, and fittings for wear, deformation, or signs of stress.