1)API Spec 7K-0078 2)ISO6807 3)GOST28618 4)Inner diameter: 38-127mm (1.5-5") 5)Working pressure:11MPa (1500PSI)-52MPa (15000

1)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.

2)Temperature Range:

-20°C~121°C.

3)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

4)Coupling type:

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

5)Specification: Grade A  Grade B  Grade C  Grade D  Grade E

Grade C

I.D in.   mm	O.D 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	79.0	27.6(4000)	55.2(8000)	69.0(10000)	7.0	900	21/2LP
2½  64	99.5	27.6(4000)	55.2(8000)	69.0(10000)	12.9	1200	3LP
3    76	115.7	27.6(4000)	55.2(8000)	69.0(10000)	15.9	1200	4LP
3½  89	133.0	27.6(4000)	55.2(8000)	69.0(10000)	21.2	1400	4LP
4   102	148.6	27.6(4000)	55.2(8000)	69.0(10000)	25.2	1400	5LP
5   127	179.0	27.6(4000)	55.2(8000)	69.0(10000)	37.9	1500	6LP
6   152	209.8	27.6(4000)	55.2(8000)	69.0(10000)	50.7	1800	6LP