Model: BWí¬3F Size: 1/4í¦~4í¦ Materials: CF8M(SS316), DIN1.4408 Working Pressure: 1000PSI WOG Temperature Range: -60 to 450ípF End Types: Buttt Weld Locking Device Investment casting body and cap Adjustable stem packing Pure Teflon seals and seats Blow-out proof stem 100% leakage testing at seat at 100PSI air pressure under water Hydrostatic test pressure:1500PSI 1/8"~4"