• Material class: AA、BB、CC、DD、EE、FF

  • Specification level: PSL 1-4

 • Performance level: PR 1-2 

• Working pressure: 2000PSI～20000PSI 

• Working medium: oil, natural gas, mud ,including H2S,CO2

 • Consist of casing head, tubing head and Christmas tree. 

• Apply to all kinds of casing, tubing programs and connection forms. 

• Feature reliable running, simple and convenient operating and repairing. 

• Can be equipped with (pneumatic) hydraulic safety valve.  

• Working temperature: -46°C～121°C（Class LU）