What type of parts must be removed during a chemical cleaning?

Chemical cleaning processes often involve the use of strong acids or alkaline solutions that can react with various materials. In particular, brass and bronze, which are copper-based alloys, can be susceptible to corrosion and damage from these chemicals. During a chemical cleaning, it is a common practice to remove all components made from these materials to prevent potential degradation or failure due to the cleaning agents.

While stainless steel is generally resistant to many cleaning chemicals, certain plastics and rubbers can also be adversely affected. However, in comparison, brass and bronze are particularly problematic due to their composition and the potential for alloying elements to leach out, leading to both structural issues and contamination of the cleaning solution itself. Thus, removing all brass and bronze parts is crucial for ensuring that the chemical cleaning can proceed safely without harming the integrity of the equipment.