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Inside Blowout<br />
preventer<br />
The inside blowout preventer protects<br />
the rotary swivel, drilling hose,<br />
standpipe and mud pumps when a kick<br />
occurs through the drill string.<br />
It will effectively seal against the pressures<br />
up to 69 MPa.<br />
Permits downward flow of circulation fluid<br />
through the drill pipe while preventing<br />
upward flow after circulation stops.<br />
Always on the working floor near the rotary<br />
table.
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