Rotary Drilling Hose with Multiple Layers of High Tensile Steel Wire Reinforcement

Rotary drilling hose is mainly used for conveying water-based or oil-based mud and other fluids in the working temperature of -30 °C to +82 °C. It is often used for oil fields, cement repairing, geological exploration and water conveyance for coal excavation. It is composed of three parts: tube, reinforcement and cover. The tube is made from NBR, which is resistant to abrasion, corrosion and oils. The reinforcement is made from 2-8 layers of high tensile and high strength spiraled steel wire, making the hose have solid structure and resistant to high pressure. The cover is made from high quality synthetic rubber, mainly chloroprene rubber, making the hose resistant to abrasion, corrosion, cut, weather, ozone, aging and sunlight. The hose has longer service life as a result.

A large diameter rotary drilling hose are supported by a axle in the warehouse.

Rotary drilling hose before delivery

The detailed structure of rotary drilling hose end.

Rotary drilling hose end detailed structure.

two rolls of rotary drilling hoses wrapped with blue package paper are on the ground.

Rotary drilling hose with package.

A detail of brass fitting of drilling hose.

Drilling hose with fitting.

Two rotary drilling hose with flanges on the ground.

Flange type Rotary drilling hose.

Two rotary drilling hoses are on the ground.

Rotary drilling hose has highly abrasion resistant tube.

The details of rotary drilling hose:

  • Structure: it is composed of three parts: tube, reinforcement and cover.
    • Tube: high quality synthetic rubber, mainly NBR, which is resistant to abrasion, corrosion and oils.
    • Reinforcement: 2-8 layers of high tensile and high strength spiraled steel wire, making the hose work well in high pressure working conditions.
    • Cover: high quality synthetic rubber, mainly chloroprene rubber, making the hose resistant to abrasion, corrosion, cut, weather, ozone, aging and sunlight.
  • Working temperature: -30 °C to +82 °C.

Note: rotary drilling hose can be divided into five kinds according to the working pressure: grade A, grade B, grade C, grade D and grade E.

Application of rotary drilling hose:

  • It is mainly used for conveying water-based or oil-based mud and other fluids.
  • It is often used for oil fields, cement repairing, geological exploration and water conveyance for coal excavation.
A large set of equipment for oil exploration is on the sea.
Rotary drilling hose can be used for oil exploration.
A set of equipment for geological exploration.
Rotary drilling hose can be used for oilfield drilling.
Grade A rotary drilling hose
Hose code ID OD Working pressure Proof pressure Min bending radius Weight Coupling thread
mm inch mm MPa psi MPa psi mm kg/m LP
RDHA-01 38 1-1/2 51 11 1500 22 3000 560 2.19 2
RDHA-02 51 2 65 11 1500 22 3000 900 3.03 2-1/2
RDHA-03 64 2-1/2 78 11 1500 22 3000 1200 3.95 3
Grade B rotary drilling hose
Hose code ID OD Working pressure Proof pressure Min bending radius Weight Coupling thread
mm inch mm MPa psi MPa psi mm kg/m LP
RDHB-01 38 1-1/2 52 14 2000 28 4000 560 2.39 2
RDHB-02 51 2 66 14 2000 28 4000 900 3.25 2-1/2
RDHB-03 64 2-1/2 79 14 2000 28 4000 1200 4.37 3
RDHB-04 76 3 98 14 2000 28 4000 1200 7.76 4
RDHB-05 89 3-1/2 113 14 2000 28 4000 1300 9.95 4
RDHB-06 102 4 127 14 2000 28 4000 1400 12.43 5
RDHB-07 127 5 113 14 2000 28 4000 1500 15.25 6
Grade C rotary drilling hose
Hose code ID OD Working pressure Proof pressure Min bending radius Weight Coupling thread
mm inch mm MPa psi MPa psi mm kg/m LP
RDHC-01 38 1-1/2 55 28 4000 56 8000 560 3.65 2
RDHC-02 51 2 69 28 4000 56 8000 900 5.15 2-1/2
RDHC-03 64 2-1/2 88 28 4000 56 8000 1200 7.86 3
RDHC-04 76 3 105 28 4000 56 8000 1200 13.12 4
RDHC-05 89 3-1/2 121 28 4000 56 8000 1300 16.79 4
RDHC-06 102 4 137 28 4000 56 8000 1400 21.70 5
RDHC-07 127 5 164 28 4000 56 8000 1500 28.46 6
Grade D rotary drilling hose
Hose code ID OD Working pressure Proof pressure Min bending radius Weight Coupling thread
mm inch mm MPa psi MPa psi mm kg/m LP
RDHD-01 51 2 73 35 5000 70 10000 900 6.46 2-1/2
RDHD-02 64 2-1/2 91 35 5000 70 10000 1200 10.75 3
RDHD-03 76 3 107 35 5000 70 10000 1200 14.35 4
RDHD-04 89 3-1/2 123 35 5000 70 10000 1300 18.70 4
RDHD-05 102 4 139 35 5000 70 10000 1400 23.16 5
RDHD-06 127 5 164 35 5000 70 10000 1500 38.00 6
Grade E rotary drilling hose
Hose code ID OD Working pressure Proof pressure Min bending radius Weight Coupling thread
mm inch mm MPa psi MPa psi mm kg/m LP
RDHE-01 51 2 80 52 7500 104 15000 1000 10.37 2-1/2
RDHE-02 64 2-1/2 101 52 7500 104 15000 1200 17.88 3
RDHE-03 76 3 120 52 7500 104 15000 1200 24.45 4
RDHE-04 89 3-1/2 135 52 7500 104 15000 1300 29.33 4
RDHE-05 102 4 148 52 7500 104 15000 1400 34.24 5
RDHE-06 127 5 189 52 7500 104 15000 1500 55.39 6