What type of lubricant is recommended for use on tapered plug gas valves?

Using special gas valve grease on tapered plug gas valves is recommended due to its specific formulation, which ensures safe and effective operation. This type of grease is designed to withstand the unique conditions of gas service, such as variations in temperature and pressure, as well as the chemical characteristics of gas. It creates a durable barrier that prevents gas leaks and helps with the smooth functioning of the valve, ensuring optimal performance.

Additionally, special gas valve grease is non-conductive, which is crucial for safety in gas applications. It also remains stable over a broad temperature range and does not evaporate or degrade quickly, providing long-lasting lubrication that can protect against wear and tear.

Other lubricants, such as regular motor oil, WD-40, or graphite powder, can pose risks. Regular motor oil may not be suitable due to its potential to break down or evaporate under high temperatures and the risk of creating a sticky residue. WD-40, while effective for many general lubrication tasks, might not provide the necessary sealing properties for gas valves and could even deteriorate components over time. Graphite powder, though useful in certain contexts, does not provide the same level of sealing or maintenance required for gas valves and can sometimes create a dry surface that might lead to operational issues