The Black Diamond Pressure Relief Valve is a critical safety component designed to protect air compressors by safely releasing excess pressure during operation. Rated for 150 PSI and featuring a 1/4 in. NPT connection, this ASME certified valve is compatible with all air compressors equipped with a 1/4 in. NPT port. Constructed from high strength, durable brass, it delivers long lasting reliability in demanding environments. Designed for easy installation using standard tools, this pressure relief valve is an ideal replacement for worn or non functioning valves, helping ensure safe, efficient, and dependable compressor performance during routine maintenance.