"Application Conditions: Service temperature ranging from 800℃ to 1050℃, operating pressure between 0.2MPa and 4MPa."
"Application Conditions: Service temperature ranging from 700℃ to 1125℃, operating pressure below 0.5MPa. The tube outer wall is directly heated by natural gas flames...
"Application Conditions: Service temperature ranging from 800℃ to 1200℃, operating pressure between 0.5MPa and 2MPa"