With the API Specification Q1 issued by the American Petroleum Institution, Letone also obtained the certificate of Authority to use the Official API Monogram of API 7K and API 16C, certificate of Product Design Assessment, Manufacture Assessment and ABS type Approval issued by American Bureau of Shipping (API 7K & API 16C). Featured as high pressure, full flow, lightweight and long service life, Letone petroleum drilling hoses are widely used in inland and offshore petroleum drilling projects.
Inner layer：PTFE
Application：flexible line using for delivery water-based, oil-based, acid-based and foam fracturing fluids under high pressure in acid, sand and hydraulic fracturing works Tube：UPE
Application：flexible connection in the cementing manifold for delivery water-based and oil-based cement slurries at high pressure Tube：NR&SBRsythentic rubber/HNBR/UPE
Application：flexible connection between the upper end of the standpipe and the top drive/swivel and between the pump and the lower end of the standpipe for pumping mud at high Tube：NR&SBRsythentic rubber/HNBR/UPE
Application：hydraulic control line for remotely control the blowout preventer (BOP) at high pressure Tube：NBR
Application：flexible connection in the chock and kill manifolds for delivery oil-gas mixture that containing hydrogen sulfide (H₂S) and other dangerous gases and various water-based, oil-based and foam killingfluids under high pressure Tube：HNBR
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