Rotary Drilling Hose

Application: Commonly used in rotary drilling service as flexible connectors of mud manifold to transfer water-base mud and/or oil-base mud at high pressure in large volumes
Tube: Principally NBR constructed, featuring oil-resistant, abrasion-resistant, acid & alkali resistant
Reinforcement: 2~8 layers spiraled by single high-strength steel wire, and rubber as a binder to make the layers into one complete and sound construction
Cover: Primarily CR fabricated, featuring oil-resistant, abrasion-resistant, weatherproof and anti-ageing
Working Temperature: -30°C~82°C, or manufactured upon customers' requirements
Coupling Type: LP (Line Pipe Thread) and TBG (Tubing Thread) of API Spec 5B
Integral type union joint and flange joint, particular types upon customers' specific requirements
Reference Standard: API Spec 7K,ISO 6807
Applicable standard: API Spec 7k. SY/T5469-92



Structure picture	Real product picture

Specification:

Inner dia.(in)	Classes	Operating pressure (psi)	Test pressure (psi)	Min. bending radius(mm)	Connector code
2"	A	1500	3000	800	TBG,LP
	B	2000	4000	800
	C	4000	8000	850
	D	5000	10000	850
	E	7500	15000	900
	F	10000	15000	950
	G	15000	22500	1000
2 1/2"	A	1500	3000	900	TBG,LP
	B	2000	4000	900
	C	4000	8000	1000
	D	5000	10000	1000
	E	7500	15000	1050
	F	10000	15000	1100
	G	15000	22500	1150
3"	A	1500	3000	950	TBG, LP
	B	2000	4000	950
	C	4000	8000	1050
	D	5000	10000	1050
	E	7500	15000	1100
	F	10000	15000	1150
	G	15000	22500	1150
3 1/2"	A	1500	3000	1000	TBG,LP
	B	2000	4000	1000
	C	4000	8000	1100
	D	5000	10000	1150
	E	7500	15000	1150
	F	10000	15000	1200
	G	15000	22500	1050
4"	A	1500	3000	1050	TBG,LP
	B	2000	4000	1050
	C	4000	8000	1100
	D	5000	10000	1100
	E	7500	15000	1150
	F	10000	15000	1200
5"	A	1500	3000	1200	LP
	B	2000	4000	1200
	C	4000	8000	1300
	D	5000	10000	1300