Learn how Overfill Prevention Device (OPD) valves keep your small cylinder* propane tank safe, how to check if your tank has one, and why upgrading an older valve is a cost-effective alternative to buying a new tank.
Ensuring the safety and compliance of your small cylinder propane system is crucial for a worry-free journey. One essential component in modern propane tanks is the Overfill Prevention Device (OPD) valve. We’ll explain what it is, how to identify if your tank has one, and the benefits of upgrading older tanks to include this vital safety feature.
What is an OPD Valve?
An Overfill Prevention Device (OPD) is a safety mechanism integrated into propane cylinder valves to prevent overfilling. Overfilling a propane tank can be hazardous, as it leaves insufficient space for gas expansion, potentially leading to leaks or even explosions. The OPD valve incorporates a float system that closes the intake valve once the propane reaches 80% of the tank’s capacity, ensuring a safe fill level.
How to Identify an OPD Valve on Your Propane Tank
Recognizing whether your propane tank is equipped with an OPD valve is straightforward:
- Valve Handle Shape: OPD valves typically feature a distinctive triangular-shaped handwheel.
- “OPD” Marking: Look for the letters “OPD” stamped or cast into the valve itself.
These indicators confirm the presence of an OPD valve on your propane tank.
Upgrading Older Propane Tanks
If your propane tank lacks an OPD valve, especially in tanks with a capacity of 7 gallons (approximately 30 pounds) or more, it’s advisable to upgrade. Replacing the existing valve with an OPD valve enhances safety and ensures compliance with current regulations. This retrofit is often more cost-effective than purchasing a new tank. Many propane service providers offer valve replacement services, which can include re-certification of the tank.
Safety and Compliance
The National Fire Protection Association (NFPA) mandates that all propane cylinders of certain capacities be equipped with OPD valves. This requirement aims to prevent accidents associated with overfilled tanks. Ensuring your propane tank has an OPD valve not only complies with safety standards but also provides peace of mind during your outdoor cooking/heating adventures.
Maintaining an up-to-date propane system with an OPD valve is a critical aspect of RV safety. Regularly inspect your propane tanks, and if they lack OPD valves, consider upgrading them promptly. This proactive step ensures compliance with safety regulations and contributes to a secure and enjoyable RV experience.
Need to upgrade your small cylinder propane tank to an OPD valve or get it filled up? Stop by our Delta RV store or one of our Delta Liquid Energy locations with a propane dispenser!
*Required for any tanks under 50lbs. Horizontal tanks are exempt.
Sources:
Air Forums – Can old LP tank valves be upgraded to OPD valves?
Cylinder Approvals: Overfilling Prevention Device (OPD) FAQs