What kind of gas is typically supplied to the high-pressure side of a seal gas?

• A. Wet and unfiltered gas
• B. Dry and filtered gas
• C. Compressed air
• D. Natural gas

Answer: (B)

The correct answer, which indicates that dry and filtered gas is supplied to the high-pressure side of a seal gas, is appropriate because the quality of the gas plays a crucial role in the functionality and longevity of the seal in rotating equipment. Using dry gas helps prevent the formation of hydrate or other unwanted byproducts that can occur from moisture presence, which can damage seal components. Additionally, filtering the gas removes particulates and impurities that could otherwise cause wear or blockages, ensuring smooth operation and effective sealing.

This practice aligns with industry standards, which prioritize maintaining the integrity of sealing systems in rotating equipment against breakdowns and inefficiencies. By ensuring that the gas supply is free from contaminants and moisture, the operational reliability of the equipment is significantly enhanced.