HYDRAULIC VALVE ARRANGEMENT FOR SUBSEA BLOWOUT PREVENTERS

摘要

A blowout preventer control system includes a valve block 29 having a solenoid valve face 33 and a hydraulic valve face 31. Solenoid valve cavities 49 extend into the valve block from the solenoid valve face, each solenoid valve cavity containing a n electrically actuated solenoid valve 19. Hydraulic valve cavities extend into the valve block from the hydraulic valve face, each containing a hydraulic valve 17. A solenoid valve supply passage 51 in the valve block joins each of the solenoid valve cavities. A solenoid valve pilot passage 61 in the valve block extends from one of the solenoid valve cavities to one of the hydraulic valves. A hydraulic valve supply passage 57 in the valve block joins each of the hydraulic valve cavities. A hydraulic valve outlet passage 59 extends from one of the hydraulic valve cavities of the valve block.