Globe Valves Material: 304 stainless steel Sealing material: polytetrafluoroethylene Threads: 1/4'' , 3/8'' , 1/2'' , 3/4'' , 1'' , 1-1/4'' , 1-1/2' ',2'' internal thread Working pressure: 1.6 MPA, 229 PSI Working temperature: -20℃ to 230℃