Product description
The control system for surface mounted BOP stacks is essential equipment for the control of BOP stacks, hydraulic chock valves and kill valves in the drilling and workover drilling operations to prevent blowout.
Control system for surface mounted BOP stacks has the below features:
1)Reliable hydraulic system, high efficiency, easy operating measures and convenient repairmen.
2)Accumulator's design can meet the requirement of closing all BOP stacks
3)If an accumulator or a series of accumulators are fails to work, the capacity loss wll not exceed 25% of the total capacity.

Major technical parameters
Nominal pressure of the system: 21MPa 3000psi
Maximum working pressure of the system: 34.5MPa 5000psi
Voltage regulating scope of the system: 0～14MPa 0～2000psi
Nitrogen charging pressure of the accumulator: 7±0.7MPa 1000±100psi
Regulating scope of pressure controller: 19～21MPa 2700～3000psi
Regulating scope of liquid-gas switch: 17.85～21MPa 2580～3000psi
Pressure of air source: 0.65～0.8MPa 93～115psi
Power supply: 380±19V/50Hz
Environment temperature: -13～40℃
Notes: Special ordering is necessary when exceeding the mentioned technical indexes