Should lubricant be applied to packing in a valve?

Applying lubricant to packing in a valve is advantageous as it significantly extends the packing's life. Lubrication helps to reduce friction, prevents wear on the packing material, and can aid in creating a better seal by filling gaps that may otherwise allow leakage. Proper lubrication can also help to prevent the packing from drying out and becoming brittle, which would compromise its effectiveness.

Additionally, the right type of lubricant can enhance the flow characteristics of the medium within the valve and reduce the effort required for operation. Regular maintenance that includes lubrication can thus add to the longevity and reliability of both the packing and the valve itself, leading to fewer operational issues over time.