surface safty control system

タイトルまたは説明

API Spec 6A ; WP:2, **0psi～*5, **0psi ; WT:P～U ; Bore:**1/*6"～**1/*8" ; Material class: AA, BB, CC, DD, EE, FF The surface safety valves that we provide are designed for simplicity, ease of maintenance and adaptability. The hydraulic actuators of the surface safety valve has fewer parts than most other hydraulic actuators and improves field ***** actuator is designed to close upon loss of control pressure(fail-safe). Optional cold service seal package enable the actuator to exceed performance standards for cold, hostile environments. Limits switches, valve position indicators, fusible and standard lockout caps, stem protectors, mechanical and hydraulic opening assemblies are also avaliable.