1、Purpose: suitable for rotary hose for flexible connection between the top of the drilling riser and the vertically movable water faucet in the oil drilling and mud delivery systems,and for the adjustment of installing error between the drilling pump line and the riser for the connection and vibration isolation. It is also suitable for delivering in large quantity at high pressure the water-based or oil-based mud with the min. aniline point at 66℃ pumped out of rotary drilling equipment.Moreover, it resists to corrosion from hydrogen sulfide and delivers water, oil,mud and other high-pressure media in borehole operation in oil field. 2、Construction: It made of inner sub or stainless steel armor inner tube ,carbon fiber reinforce sub,middle sub,steel wire reinforce sub ( steel catenarian line reinforce sub ),and carbon fiber outer sub. 3、The product is classified into steel wire reinforcing type and steel link line reinforcing type. 4、Applicable standard: API Spec7K  SY/T5469 5、API emblem practical license Numbers: 7K-0376

Spec. inner dia. mm(in)	51（2＂）							64（2 1/2＂）							76（3＂）
Classes	A	B	C	D	E	F	G	A	B	C	D	E	F	G	A	B	C	D	E	F	G	–
Operating pressure Mpa(Psi)	10.3   1500	13.8   2000	27.6   4000	34.5   5000	51.7   7500	69.0   10000	103.4   15000	10.3   1500	13.8   2000	27.6   4000	34.5   5000	51.7   7500	69.0   10000	103.4   15000	10.3   1500	13.8   2000	27.6   4000	34.5   5000	51.7   7500	69.0   10000	103.4   15000	–
Test pressure Mpa(Psi)	15.5   2250	20.7   3000	41.4   6000	51.7   7500	77.6   11250	103.4   15000	155.1   22500	15.5   2250	20.7   3000	41.4   6000	51.7   7500	77.6   11250	103.4   15000	155.1   22500	15.5   2250	20.7   3000	41.4   6000	51.7   7500	77.6   11250	103.4   15000	155.1   22500	–
Min.bending	800	800	850	850	900	950	1000	900	900	1000	1000	1050	1100	1150	950	950	1050	1050	1100	1150	1150	–
Connector code	TBG、LP、Union							TBG、LP、Union							TBG、LP、Union
Spec. inner dia.mm(in)	89（3 1/2＂）							102（4＂）						127（5＂）					152（6＂）
Classes	A	B	C	D	E	F	G	A	B	C	D	E	F	A	B	C	D	E	A	B	C	D
Operating pressure Mpa(Psi)	10.3   1500	13.8   2000	27.6   4000	34.5   5000	51.7   7500	69.0   10000	103.4   15000	10.3   1500	13.8   2000	27.6   4000	34.5   5000	51.7   7500	69.0   10000	10.3   1500	13.8   2000	27.6   4000	34.5   5000	51.7   7500	10.3   1500	13.8   2000	27.6   4000	34.5   5000
Test ressure Mpa(Psi)	15.5   2250	20.7   3000	41.4   6000	51.7   7500	77.6   11250	103.4   15000	155.1   22500	15.5   2250	20.7   3000	41.4   6000	51.7   7500	77.6   11250	103.4   15000	15.5   2250	20.7   3000	41.4   6000	51.7   7500	77.6   11250	15.5   2250	20.7   3000	41.4   6000	51.7   7500
radius mm	1000	1000	1100	1100	1150	1150	1200	1050	1050	1100	1100	1150	1200	1200	1200	1300	1300	1300	1300	1300	1400	1400
Connector code	TBG、LP、Union							TBG、LP、Union						LP、Union					LP、Union