The Cameron electric self-contained system (ESPC) is used to operate a hydraulically actuated surface safety valve using electrical power. The ESPC is a self-contained system that mounts directly onto the hydraulic actuator to be operated. The unit is used in conjunction with an electrical control panel that controls the operation and shutdown logic of the system.
Electric power is provided to the ESPC to open the hydraulically actuated surface safety valve. The electric motor-driven pump contained in the ESPC produces the hydraulic output required to open the surface safety valve. Pressure switches that monitor the output pressure provide control signals to stop the pump when maximum operating pressure is reached. They also restart the pump if pressure drops below the minimum operating pressure. To close the surface safety valve, the solenoid valve contained in the ESPC is de-energized, bleeding hydraulic pressure from the system.
- The device offers easy mounting and hook-up onto a standard hydraulic actuator. A mounting bracket can be provided to suit various actuator sizes.
- The system features a compact design, meaning that it can be mounted onto the actuators on a solid block tree when space is limited.
- The ESPC allows electrical control of standard hydraulic actuators. It also can be used to convert an existing hydraulic control system into an electric control system.
- Stainless steel construction ensures longevity. A shroud also is available to totally enclose the system and provide additional protection.
- A wide range of operating pressures is available, including up to a maximum of 6000 psi (414 bar).
- The system can be equipped with position indicator to allow remote position indication of valve status.