U-shaped bop design for hydraulic opening and closing ram, and can quickly replace disc.
Control system provided by the pressure used to close close bop disc, also can be used to open cover. Used to open the cover, the control system pressure to shut, wedge closed after using cover bolts, demolition of the control system pressure open cover. After the full open housing wedge can take from the ontology. In each of the gate are used to install top thread, driving, driving can be fitted with hoisted out to disc.
Control system provided for open open pressure bop disc, also can be used to close cover. Used to close cover, the control system of the gate open pressure to open. After the disc replacement of the control system, using open pressure closed end shields. Move the bop disc, disc before first be pulled out near the cover. It ensures that the disc is not held back bop vertical ventilation hole, avoid and shaft pipe friction. After cover completely shut down in cover bolts, installation.
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