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What are the common causes of component damage ?

What are the common causes of component damage ?
Update Time:2017-10-17

What are the common causes of component damage?

Mechanical damage - eg: seal face damage due to excessive loads caused by high pressure and damage to faces and other parts caused by incorrect fitting.

Corrosion and chemical attack -eg: crevice corrosion or pitting of metal parts due to exposure to excessive levels of chloride , H2S, etc. or cracked or swollen elastomeric o-rings due chemical incompatibility.

Wear - eg: accelerated face wear due to abrasives or wear of driving parts such as pins and key ways due to excessive misalignment.

Thermal overload - eg: seal rings may develop thermal cracks or blisters due to excessive heat at the seal faces due to poor heat dissipation. Elastomeric o-rings can become hard, brittle and cracked due to excessive heat.