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Highflex Grade D Rotary Drilling

Highflex hose is recommended for the high pressure rotary drilling requirements of API Spec 7K and ISO 6807. The Highflex Grade D Rotary Drilling hose features multiple plies of high strength bead wire reinforcement to exceed the minimum burst requirements of 12,500 psig, yet provide for the maximum hose flexibility. The CR cover and NBR tube offer excellent resistance to heat, oil, abrasion and weather. This hose is also used in higher pressure applications which exceed the capabilities of Grade C Rotary Drilling hose. It can also be used for the flexible connection between standpipe and swivel for pumping mud at very high pressure in oil drilling and exploration.

Cover Color: Black

Oil Resistance: High

Construction:

Tube: NBR, RMA Class A

Cover: CR, Class C

Reinforcement: Multiple plies of bead wire (8 or 10)

and synthetic cord fabric

Temperature Range: -20°F to +200°F

-29°C to +93°C

Packaging: Lengths over 30 ft. shipped on metal reels

Shorter pieces shipped straight – slat packed

Couplings: Only uncoupled hose is available at this time

Product Number

Nominal I.D. (inches) (mm)

Nominal O.D. (inches) (mm)

Plies

Working Pressure (psi) (Mpa)

Min. Bend Radius (inches) (mm)

Weight (lb/ft) (Kg/m)

34844473002_ 34844475002_

2-1/2 3

63.50 76.20

4.25 4.72

107.95 119.86

8 8

5000 5000

34.48 34.48

48.00 48.00

1219.20 1219.20

11.30 12.40

16.82 18.45

34844478002_

3-1/2

88.90

5.44

138.11

10

5000

34.48

54.00

1371.60

17.43

25.94

_ = Make To Order (MTO)

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