... . Name: brass safety relief valve for air compressor 2. Thread: 1/4",3/8",1 ... 150 The safety valve is applicable for the air compressor with operating tempreture<200C.It applied to security protection ... are CNC machining centers, homemade digital control lathe,air test device, special painting line, ect. ... air compressort<200C0.1-1.51/4", 3/8"brass 1/2" brass safety relief valve for air compressor ...