Top Line Manufacturing OPD35X Overfill Prevention Device Valve Fuel Fittings

The Top Line Manufacturing OPD35X is an Overfill Prevention Device (OPD) valve designed for use with propane (LPG) cylinders. OPD valves are required by NFPA 58 on all portable propane cylinders between 4 lb and 40 lb capacity, providing an important safety feature that automatically stops the fill process before the cylinder reaches its maximum safe fill level.

Key Features:

• Built-in overfill prevention mechanism for safe propane cylinder filling
• Compliant with NFPA 58 overfill prevention requirements
• Designed and manufactured by Top Line Manufacturing, a trusted propane industry supplier
• Durable brass construction for long service life and corrosion resistance
• Drop-in replacement or upgrade valve for compatible propane cylinders

The OPD35X valve helps prevent the dangers associated with overfilled propane cylinders, including excessive pressure buildup. It is engineered to meet industry safety standards and is well-suited for residential, commercial, and recreational propane applications.