Model: BTí¬1R Size: 1/4í¦~4í¦ Materials: CF8M(SS316), CF8(SS304) Working Pressure: 800/1000PSI WOG Temperature Range: -60 to 450ípF End Types: Threaded Investment casting body Adjustable stem packing Pure Teflon seals and seats Blow-out proof stem 100% leakage tested at 100PSI air under water Hydrostatic test pressure:1500PSI Reduced Bore Locking Device(option) 1/8"~4"