API Spec 7K-0078 ISO6807 GOST28618 Inner diameter: 38-127mm (1.5-5") Working pressure: 11MPa (1500PSI)-52MPa (15000PSI)

Applicability:

Commonly used in drilling,cementing,work over service as flexible connection for mud manifold,cement manifold,choke and kill manifold to transport water base mud or oil base mud ,washing fluid at high pressure in large volumes.

Temperature Range:

Ambient temperature -20°C~121°C.

Structure:

Tube(lining): 

Principallycompoundedrubber,featuringoil-resistant,abrasion-resistant,acid&alkali resistant

Reinforcement:

2-6 layers of high strength steel wire spiral

Cover:

 featuring oil-resistant,Low temperature,weather proof and anti-ageing

Coupling type:

LP (line pipe thread) and TBG (tubing thread) of API 5Bintegral type union joint and flange joint, or any particular types as percustomers' requirements

Specification:

Grade A  Grade B  Grade C  Grade D  Grade E

Grade A

I.P  in.  mm	O.P mm	W.P MPa(psi)	T.P MPa(psi)	Burst Pressure MPa(psi)	Weight kg/m	Min Bending Radius(mm)	Coupling Thread in
2    51	73.3	10.3(1500)	20.7(3000)	25.8(3750)	4.1	900	21/2LP
2½  64	87.2	10.3(1500)	20.7(3000)	25.8(3750)	5.2	1200	3LP