AquaLock 0556000 Pressure Relief Valve 3/4 Inch NPT 150 PSI

The AquaLock 0556000 is a lead-free pressure relief valve designed to protect plumbing systems, water heaters, and hydronic heating systems from excessive pressure buildup. This safety valve automatically opens to release pressure when the system exceeds the preset threshold, preventing potential damage to equipment and ensuring safe operation.

Key Specifications:

• Valve Size: 3/4 inch NPT threaded connections for easy installation
• Pressure Rating: 150 PSI maximum working pressure
• BTU Capacity: Rated for up to 80,000 BTU applications
• Body Material: Durable brass construction for corrosion resistance and longevity
• Spring Material: Stainless steel spring for reliable, consistent performance
• Compliance: Lead-free (LF) construction meets current plumbing codes and regulations

This relief valve is an essential safety component for residential and light commercial water heating systems, providing automatic pressure protection to maintain system integrity and comply with safety standards. The brass body ensures excellent durability in hot water applications, while the stainless steel spring maintains accurate pressure calibration over time.