Ground safety valve
Surface safety valve is a ground safety system to ensure the safe exploitation and transportation of oil and natural gas. It is divided into hydraulic and pneumatic.
Basic parameters
Working pressure: 2000psi ～ 20000psi
Nominal diameter: 1 13 / 16 "～ 7"
Working medium: oil, natural gas, mud, gas containing H2S and CO2
Working temperature: - 46 ° C ~ 121 ° C (Lu grade)
Material grade: AA, BB, CC, DD, EE, FF, HH
Specification level: psl1-4
Performance level: pr1-2
Executive standard: API Spec 6A