Do Direct-Buried Liquid Propane Storage Tanks Suffer from Moisture-Related Issues That Affect the Pressure Regulator?
Direct-buried liquid propane storage tanks can indeed experience moisture-related issues that may lead to problems with the pressure regulator and other components. This article explores the key points and solutions to avoid these problems.
Condensation
When the temperature of the propane tank drops, moisture in the air can condense on the tank's surface. This moisture can accumulate and potentially freeze, especially in colder climates. Proper management of condensation is crucial to prevent such issues.
Freezing
If moisture freezes around the pressure regulator or in the lines connected to it, it can cause blockages or malfunctions. This is particularly problematic during cold weather when temperatures fluctuate. Freezing can lead to critical failures, disrupting the safe operation of the propane system.
Installation Considerations
Proper installation is crucial to mitigate these risks. Tanks should be buried below the frost line to minimize temperature fluctuations. Additionally, insulating the area around the tank and using appropriate covers can help reduce the risk of freezing. Ensuring a stable and regulated operating environment is key to maintaining a reliable propane system.
Drainage
Ensuring good drainage around the tank can help prevent water accumulation, which can lead to moisture issues. Proper drainage facilities should be installed to divert any excess water away from the tank, further reducing the risk of moisture-related problems.
Regular Maintenance
Regularly checking the tank and associated equipment for signs of moisture buildup and ensuring that the system is properly maintained can help prevent these issues. Regular maintenance includes inspections, cleaning, and addressing any potential leaks or other anomalies promptly.
In summary, while direct-buried propane tanks can have moisture problems that affect pressure regulators, proper installation and maintenance can significantly mitigate these risks. Regular monitoring and care are essential to keep your propane system running smoothly.
Narrative: Any kind of LP gas tank can have water in it, as there are traces of water in the fuel that is delivered to the tank. The tank is under pressure, so no water can seep into it, whether it is above ground or buried. Over time, some of the water will condense and settle into the bottom of the tank, but for the most part, it stays mixed with the gas vapors and gets drawn off with the fuel and doesn’t cause a problem. However, things can change in very cold weather. In an above ground tank, the water condenses out and stays liquid or even freezes in the bottom of the tank, with little mixing with propane vapors. Below ground tanks don't get as cold, so more water vapor stays mixed with the gas and is drawn out with the fuel. When the pressure vapor hits the primary regulator in the dome of the tank, it expands and gets colder due to basic physics. Because the regulator is already very cold due to sub-zero temperatures, the water in the gas may form ice crystals in the regulator, blocking the gas flow.
Fix: To address these issues, having your gas supplier add a dose of ethanol to the tank is an effective solution. The ethanol will bond with the water and lower its freezing point, thus preventing ice crystal formation and ensuring smooth operation.