Ram blowout preventer with dydrualic

on the basis of integrating the advantages of manufactures and on side use. we have designed and produces the hydrualic blowout with hydraulic blowout with hydraulic starting and closing side door.which has a more stable and convenient function in comparison to the common ellips(U-shaped)shutter hydraulic blowout preventer.during the [process of starting and closing the side door, the dydrualic pressure can be used,which reduces the labor force of the workers dramatically,changes shutter more quickly and effectively enhances the workling efficency,it is the most popular well mouth safety equipment among the same kinds