Pack of five brass safety relief valves, pressure rated 120 PSI — replacement or spare valves for air compressor systems, pressure vessels, and piping installations. Key benefits Protects equipment: reliably relieves excess pressure at 120 PSI to reduce the risk of overpressure damage to compressors, receivers, and piping. Ready spares: five valves per package let you service multiple machines or keep replacements on hand to minimize downtime. Durable construction: solid brass bodies resist wear in typical industrial and commercial environments for long service life. Easy risk management: straightforward way to maintain safety compliance and extend the life of pressure equipment. What these valves do Function: act as safety relief valves that open when system pressure exceeds the 120 PSI rating, venting excess pressure to protect pressure vessels and piping. Performance: specified pressure rating 120 PSI; engineered for reliable, repeatable pressure relief in compressed air and similar systems. Compatibility and material Material: brass construction for mechanical strength and resistance to routine wear. Compatibility: intended for use with air compressor safety ports, pressure vessels, and piping systems in industrial and commercial settings. Confirm your equipment's port and thread specifications before installation. Practical use scenarios a worn safety valve on a air compressor receiver to restore proper overpressure protection and reduce downtime. Fit valves on multiple compressed air distribution lines in a small fabrication or maintenance to protect pneumatic tools and downstream equipment. Install on pressure vessels or piping runs in commercial operations where reliable 120 PSI relief is required for safety and continuous operation. Notes for buyers Package includes five identical brass safety relief valves, each rated at 120 PSI. Verify physical connection type and pressure requirements of your system before installation to ensure compatibility.