What is required to protect the exterior of piping from corrosion?

To protect the exterior of piping from corrosion, it is necessary for the piping to be protected in some manner. This requirement is based on the understanding that piping, particularly when installed outdoors or in environments prone to moisture and various chemicals, can be vulnerable to corrosion which can lead to significant deterioration and, ultimately, failure of the piping system.

Protection of piping can take many forms, including but not limited to:

• Coatings: Paint or special corrosion-resistant coatings are commonly applied to metal pipes to create a barrier against environmental factors that promote corrosion.

• Wrapping: Materials such as plastic or other non-corrosive wraps can be used to shield pipes from exposure to moisture and other corrosive agents.

• Galvanization: Some metal pipes are treated with zinc to prevent oxidation and rust.

While there are several specific methods for protecting piping, the key point is that some form of protection is mandatory to ensure the longevity and reliability of the system. Leaving the piping unprotected is not acceptable, as this would increase the risk of corrosion and subsequent failures. Therefore, the requirement that the piping must be protected accurately reflects the necessary precaution to uphold safety and performance standards within mechanical systems.