Product Description 1.competitive price and high quality 2. delivery timly and in stock 3.power:380v 50hz 4.Max.working pressure:34.5MPa(5000Psi ) The control system for surface mounted bop stacks is an important equipment for the control of bop stacks.choke and kill valves in the drilling and workover drilling operations .it has already passed the certificate of spec 16D. Control System for Surface Mounted BOP Stack are from 2 to 14, being suitable for any difficult climate atmosphere. Technical parameter Main parameters as follows: 1.Environmental temperature:-13~40�°C 2, Power: 380v, 50Hz 3, Nominal pressure: 21MPa(3000Psi) 4.Max.working pressure:34.5MPa(5000Psi) 4, Pressure range: 0~14MPa(0~2000Psi) 5, Nitrogen charging pressure of accumulators: 7�±0.7MPa(1000±100Psi) 6, Air supply pressure: 0.65~0.8MPa(93~115Psi) 7, Pressure range of pressure valve: 17.5~21MPa(2500~3000Psi) 8, Hydro-pneumatic pressure switch: 19~21MPa(2700~3000Psi)