API 16A Single Blowout Preventer for Oil Well Control
Ram type BOPs are field proven products that are designed for a variety of operations from work - overs to high pressure , critical service operations for land drilling and subsea service . It consists of the BOP body , bonnet , hydraulic cylinder assembly , operating piston , ram change cylinder , ram opening / closing piston , locking screw , ram assembly , sealing parts etc. Top , bottom and outlet connection dimensions conform to Specification for Drilling through Equipment API Spec 16A .
Made up of the high - strength and high - tenacity alloy steel , the pressure - bearing parts ( like BOP body , bonnet etc. ) are formed through external refining and proper heat treatment preventing the harmful chemical components and nonmetallic inclusion strictly from materials and ensuring BOP to be safe and reliable .
The body ram chamber adopts the long runway to reduce stress concentration . Both the bonnet switch and ram switch are driven by the hydraulic pressure and adopts the same one oil line . The bonnet employs the same one oil line and operation to open and close the ram .
Moreover , the bonnet employs the same one oil line and operation to close and open the ram .
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Made up of the high - strength and high - tenacity alloy steel
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