🔒 Secure Your System with Confidence! Engineered for peace of mind with a 50 psi preset pressure release. Meets rigorous ASME standards for Section IV water heating systems. Crafted from ASTM B584 bronze and stainless steel for unmatched durability. Handles up to 250°F, perfect for demanding applications. 3/4" male NPT threads ensure seamless integration with existing systems. 50 psi preset 250°F max temp 3/4" NPT threads The Apollo Valve 10-400 Series Bronze Safety Relief Valve is a robust solution designed for high-temperature water heating systems. With a preset pressure of 50 psi, it ensures safe operation while its corrosion-resistant materials guarantee longevity. The 3/4" NPT threaded connections make installation a breeze, and its ASME certification provides the reliability you need for peace of mind.