The structural damage that is prone to occur in forged steel globe valves mainly includes valve body corrosion perforation, high-temperature creep deformation, and aging of seals.
Valve body corrosion perforation:
Corrosion of the medium (such as acid or alkali) or environmental humidity, corrosion-resistant materials (such as CF8M stainless steel) should be selected.
High temperature creep deformation:
Long term over temperature use (>425 ℃) may cause deformation of the valve body, and high-temperature resistant models (such as F11 alloy steel) should be selected according to the working conditions.
Seal aging:
Rubber/PTFE gaskets become brittle at high temperatures and need to be replaced regularly to avoid over temperature operation.