ASME Section VIII Brass Safety Relief Valves • Max. temp.: 406°FBrass construction with bronze-plated lift lever, stainless steel springs, and precision-lapped metal-to-metal seating with built-in blow-down. Use on compressor, tank, steam, and air production lines, as well as in OEM applications. MNPT inlet; vented top outlet.Meet ASME Section VIII and CRN standards.