Proper Purging Of A Propane Tank

Categories

• DOT & ASME Steel Tanks
  • 5 - 20 lb Tanks
  • 30 - 40 lb Tanks
  • 50 - 60 lb Tanks
  • 100 - 200 - 420 lb Tanks
• Forklift Tanks
  • Aluminum Forklift Tanks
  • Steel Forklift Tanks
• DOT Aluminum Tanks
  • Horizontal Aluminum Tanks
  • Vertical Aluminum Tanks
• Burnisher Tanks
• Mower Tanks
• RV & Catering Truck Tanks
• Tank Cages
• Torches

Brands

• Manchester
• Flame King
• View All

Navigate

• How do I select the correct propane forklift tank?
• Does Propane Degrade If Stored for a Long Time?
• DOT & ASME Propane Tank Differences
• Propane Tank Pressure Increases with Temperature
• Propane Tank Regulators - Size Matters!
• Why Does Ice Form on the Outside of My Propane Tank?
• Helpful Propane Tank Information
• Do’s and Don’ts when Using Propane Tanks
• Energy Saving Tips
• Forklift Safety
• Propane Facts
• Sizes – Forklift and Buffer Tanks
• Recertification
• Sizes – Boat Tanks
• What is an OPD?
• Sizes – DOT 5 lb - 200 lb Tanks
• Blog
• Terms and Conditions
• Privacy Policy
• Customer Service
• Sitemap

• Home
• Blog
• Proper Purging of a Propane Tank

Proper Purging of a Propane Tank is very Important!

DOT Cylinder Purging Procedure:

• Exhaust to atmosphere any air pressure in the container*
• Pressurize the cylinder to 15 psig with propane vapor. Never use liquid propane.
• Exhaust vapor to atmosphere
• Repeat four more times

SAFETY WARNING: The purging procedure should be done by a qualified trained person. Exhausting propane vapor incorrectly could result in ignition of exhausted propane fumes resulting in burn injury or death!

Why is purging a new propane tank so important?

• If the natural volume of air inside your tank is not removed prior to the 1st filling, these problems will result:
• During the warmer months of the year your tank could experience excessive and false container pressures. This could cause the safety relief valve to open, blowing off (discharging) the excessive pressure.
• Any air mixture in the vapor space of the tank will be carried to the appliance burner. This could result in unwanted service calls from pilot light outage or improper burner flame function.

However, if the atmospheric air inside your new tank is properly purged:

• The storage tank will fill faster, your appliances will function more consistently, pressure relief valves on your tank will be less likely to discharge.

WARNING! Never Purge with Liquid Propane!

Purging with liquid propane causes the liquid propane being pumped into your tank to flash into vapor, chilling the container and condensing any moisture vapor on the walls of the tank where it remains while the pressure is being blown down. Additionally, less than 50% or as little as 25% of the air will be removed if the purging is done with liquid propane.

× OK ×