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  • Grade D Sour Service

    HOME>>Products>>Grade D Sour Service

    Rotary Vibrator Hose Grade D Sour Service (Kelly Hose)


    5,000 psi W.P. - 10,000 psi Test- Grade D- 12,500 psi Minimum Burst

    API Spec 7K--ISO 14693--ABS approval

    Recommended For:

    Meets the high demands of directional drilling and down linking with negative pressure pulses and elevated temperatures. This hose can also be used as a Motion Compensator hose for stabilization of rotary drilling and pumping equipment against vertical wave action on offshore drill platforms. The Motion Compensator hose is not recommended for phosphate ester fluids.


    Modified Nitrile. 3/16” thick. Black. Specially designed for handling abrasive, corrosive and oily drilling mud.


    Multiple layers of textile fabric and steel cable, with one layer middle rubber placed between cable layers.


    Modified Nitrile. Black. Specially designed Ultra abrasion cover is resistant to abrasion, corrosion, cutting, gouging, oil and weather.


    Swaged couplings. Full range of couplings are available, such as hammer unions, flanges, camlock, male thread, etc.



    -4℉ to +180℉ (-20℃ to +82℃) continuous service.

    Accessories such as safety clamps, hose lift eyes and stainless steel armor are available upon request.

    Each hose is tested at 10000psi for 15 minutes. Pressure test graph, test certificate and letter of conformance are issued for each hose.

    Product Process      


    • Germany Lanxess HNBR as raw material.

      20% H2S and 80% oil based mud. 

      Survive the extreme oilfield application requirements and has been no quality complaint for 5 years.

    • Stainless steel 316L used as armored jacket

    Factory Workshop:

    • SEJIN MACHINE from Korea. 

       Suspension difference<70 MM, and the international standard is 120 MM. 

    • Mitsubishi electric control braiding machine. 

       High accuracy data collection, real-time braiding angle monitoring and correction.



    After finishing the kelly hose production, we will pack the hose.

    In general, the packing will use woven bag and plastic film.

    Special packing is available according to customers’ requirements.


    Our company               

    1. ORIENTFLEX has a strong sales and service team of 20 people, with more than 10 years experience in foreign trade, to provide professional services for customer.

    2. ORIENTFLEX has advanced production facilities, including 13 high-speed fiber braid machines, 15 high-speed steel wire braid machines,2 steel wire spiral production lines.45 PVC hose production lines. We have introduced VP brand Industrial hose production line from Italy and Maillefer extrusion line from Switzerland.

    3. Our factory has strong quality control team, we set up advanced laboratory.

    Before the mass production, we test each batch of raw material.

    After the production, we test each hose to guarantee a 100% qualification.

    Each hose tested at 2 times of working pressure.

    We do everything possible to supply good quality goods for our customer.

    4. ORIENTFLEX has three warehouses.




    Market & Trade Show             

    Our product has exported to over 30 countries, including the United States, Britain, Brazil, Russia and so on. and we participate in overseas exhibitions every year.

    trade show.jpg

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