Recovering vapors during gasoline loading and unloading is a well-established practice in the petrochemical and gasoline transportation industry. The industry adopted a “closed loop” system long ago, which safely conveys these liquids and returns the vapors to the transport tank, typically MC306 or DOT406 specification tank trailers. These trailers are usually made of aluminum, known for being lightweight, strong, and non-sparking.
For over 20 years, the industry has relied on Girard for an easy-to-operate and maintain device, the GVRA (Girard Vapor Recovery Adapter). Developed in the mid-1990s based on feedback from top experts in tank transportation, this device was designed to advance the tank transport, hazardous liquid handling industry with a design suitable for most DOT407 specification tanks.
A reliable vapor recovery system ensures compliance with environmental regulations. Weโll guide you through troubleshooting tanker trailer vapor recovery system problems to keep your operations running smoothly.
Common Vapor Recovery System Problems
Leaking Connections
One of the most common issues with vapor recovery systems is leaking connections. Loose or damaged fittings can lead to vapor leaks, reducing system efficiency and posing significant safety risks. The choice of gaskets is crucial; a thicker, properly manufactured gasket, though more expensive, will last longer and provide better protection. Girard gaskets are not โlathe cut,โ which are often cheaper but offer only momentary protection.
Leaking connections often result from improper installation, wear and tear, or damage during operations. Over time, constant exposure to pressure and external factors can weaken fittings.
Clogged Vents or Valves
Another common problem is clogged valves. Residue from transported materials that havenโt been properly cleaned can obstruct these critical components, leading to pressure build-up or inefficient recovery operations. When Vapor Recovery Adapter valves clog or become inoperable, they disrupt the entire vapor flow, potentially causing pressure to reach unsafe levels.
Fleet managers need to regularly inspect these valves to ensure they are properly maintained.
Worn Seals and Gaskets
Seals and gaskets are essential for preventing vapor escape and maintaining system integrity. Over time, these components can wear out or degrade, compromising their effectiveness. Damaged seals or gaskets impair recovery efficiency and may lead to regulatory violations if vapors escape.
Regular inspection and prompt replacement of worn-out or degraded components ensure that your vapor recovery system remains airtight and compliant with environmental standards. Use only genuine Girard parts to fix Girard vents and valves, which are conveniently sold in kits with instructions on how to disassemble and repair the valve.
System Overpressure
Excessive pressure within a tank trailer can lead to catastrophic failures, including equipment ruptures. System overpressure is often caused by blocked vents, faulty sensors, or pump malfunctions. Addressing overpressure issues swiftly is crucial to prevent costly incidents. Girardโs Magnetic Vacuum Breaker is designed to protect your tank with unrivaled design and utility.
Monitoring system pressure levels regularly is a proactive approach to avoiding overpressure problems. Scheduling maintenance or repairs at the first sign of excessive pressure is essential for safeguarding your fleet and its operations.
Troubleshooting Tips for Correcting These Problems
Check Connections Regularly
Inspecting and tightening loose fittings is a simple yet effective way to prevent vapor leaks. Regularly checking connections and replacing damaged fittings as needed maintains the efficiency and safety of the vapor recovery system. Only use genuine Girard parts from an authorized Girard distributor. Consistent monitoring of connections is a fundamental part of proactive maintenance.
Clean Valves
Regularly cleaning vents and valves is essential to ensure smooth vapor flow and prevent mishaps. Properly cleaning these components keeps the system operating efficiently. For fleet managers, maintaining clean vents and valves is a preventive measure that pays off in terms of system performance and safety. Proper care and maintenance of vents and valves extend the life of the vapor recovery system.
Inspect Seals and Gaskets
Inspecting seals and gaskets for wear or degradation is vital in preventing vapor escape. Replacing compromised components promptly maintains system efficiency and compliance with environmental regulations. Proactive maintenance of seals and gaskets protects the vapor recovery system and the environment. Ensuring the integrity of seals and gaskets is a key aspect of responsible fleet management.
Maintain the Hydraulic Jack / Pump
Conducting regular maintenance on the hydraulic hand pump to actuate the vapor recovery systems, as well as the bottom discharge system pump, prevent malfunctions and ensures continuous operation. Being prepared to repair or replace the pump when necessary is crucial for maintaining system functionality. The hydraulic pump is a critical component, and its proper care ensures the overall efficiency of the system. Regular maintenance of the pump is a wise investment in the long-term success of your fleet’s operations.
Update Your Vapor Recovery System with Girard Equipment GVRA
By following these tips for fixing tanker trailer vapor recovery system issues, fleet managers can ensure efficient and safe operations. Maintaining these systems reduces loss and fosters compliance with environmental regulations, ultimately benefiting both business and the planet.
If you need a new tank vapor recovery system, explore Girard Equipment’s selection today. Our cutting-edge solutions provide the reliability and performance you need to stay ahead in today’s competitive market.