Min. Order Reference FOB Price
1 Piece US$100.00-1,000.00 / Piece
Product Description
Product Description IBOP Description: The IBOP is a non-return valve (check valve), also called Gray Valve or BVR, is a back pressure valve used in the drill string to prevent the well from flowing uncontrollably up the drill string. When the blowout occurs during lifting operations, the IBOP ...